Microwave Journal


November 1, 2000


*          Power Splitters

MWJ5216 The models PD22-73 power divider and HY22-73 90° hybrid are designed for the 2.1 to 2.3 GHz ISM band. The 50 W components offer low loss, high isolation and good phase/amplitude balance. The monolithic circuitry is 100 percent passive and available in the small six-lead, SOT-6 surface-mount package supplied in tape and reel for high volume, low cost applications. Price: 75¢ (PD22-73) (50,000), 60¢ (HY22-73) (50,000).

Alpha Industries,
Woburn, MA (781) 935-5150.

Circle No. 216

*          Solid-state Switch

MWJ5217 The model MSNN-2DR-024T-UF15 option 10F slimline SP2T solid-state switch operates from 200 MHz to 18 GHz (10 MHz to 18 GHz optional) with an insertion loss of < 0.80 dB at 200 MHz to < 2.5 dB at 18 GHz. Isolation is >= 80 dB at 200 MHz to >= 70 dB at 18 GHz. Switching speed is < 35 ns ON and < 25 ns OFF with an SWR of better than 2. Supply voltages are +5 V at 50 mA and ­15 V at 58 mA. (Other supply voltages available.) Size: 1.10" * 0.75" * 0.24". Weight: 0.75 oz. (typ).

American Microwave Corp. (AMC), 
Frederick, MD (301) 662-4700.

Circle No. 217

* Surface-mount Power Inductors

MWJ5219 The SPI 0802 series surface-mount, low profile power inductors offer direct current resistance of as little as 0.010 O, combined with saturated current handling capability up to 3500 mA and RMS current rated to 3600 mA. The devices are ideal for DC-DC conversion in notebook computers, converters, and other space- and weightlimited applications. Inductance levels in the series range from 1.0 to 1000 µH with corresponding DCR maximums from 0.010 to 3.65 O, and saturated current handling from 3600 to 200 mA. RMS current capability ranges from 3600 to 210 mA. Operating temperature may range between ­40° and +105°C. Size: 0.51" * 0.38" * 0.16". Price: 35¢ (100,000). Delivery: stock to six weeks (ARO).

Associated Components Technology Inc., 
Garden Grove, CA (800) 234-2645 or (714) 265-4800.

Circle No. 219

*          High Power Coupler

MWJ5220 The model 100-AC-FFN-20 100 W coupler has a frequency range of 800 to 2500 MHz. Coupling is 20 dB and directivity is 20 dB (min) making the device ideal for cellular and PCS applications. Insertion loss is 0.25 dB (excluding coupled power) and 0.3 dB thruline. SWR is 1.15 (max), frequency sensitivity is ±1 dB (max) and reflected power depends on the external load used. The operating temperature is up to 105°C. Weight: approximately 8 oz. Price: $175 each (1 to 10). Delivery: four weeks (ARO).

BCP (Bird Component Products), 
Largo, FL (727) 547-8826.

Circle No. 220

*          Micro-cable Assemblies

MWJ5218 The SureFlex™ micro-cable assemblies are constructed with HELIAX® micro-cable, the world's smallest continuous run corrugated RF cable. The small-diameter (3.6 mm and 5.7 mm) cable assemblies are ideal for in-cabinet jumper applications for next-generation wireless and broadband systems and technologies including EDGE, wideband CDMA and CDMA2000. They are designed to meet next-generation radio requirements by providing the lowest attenuation of any flexible coaxial cable with the same bend radius. The HELIAX micro-cable is hand conformable, holding its shape and performance after repeat bending.

Andrew Corp.,
Orland Park, IL (800) 255-1479.

Circle No. 218

*          Stripline Flange Termination

The model 42-1005 stripline flange termination is designed for external package mounting and can be used in place of connectors in applications where termination removal is not a requirement. The 10 W component operates over the DC to 18 GHz frequency range and may be used in stripline and microstrip circuits. It has a slotted 0.030" contact and is recommended for applications such as isolators, circulators, couplers and power dividers. Size: 0.5" * 0.5".

Florida RF Labs Inc.,
Stuart, FL (800) 544-5594 or (561) 286-9300.

Circle No. 221

*          Thin-film Microwave Capacitors

MWJ5270 The Accu-P® series thin-film capacitors now include a high performance RF/microwave capacitor in a 0402 size. The series features capacitance values from 12.0 pF down to 0.1 pF with tolerances to ±0.01 pF (up to 5.6 pF); to ±0.1 pF (from 5.6 pF to 10 pF); and ±1 percent (higher than 10 pF). Rated voltage ranges from 10 to 50 V DC, with a temperature coefficient of 0 ±30 ppm/°C over the ­55° to 125°C. The 0402 series also guarantees SRF, ESR and Q values through 2400 MHz. The capacitors are available in tape-and-reel packaging of 5000 and 10,000/reel. Price: 19¢ in quantity. Delivery: stock to 18 weeks.

AVX Corp.,
Myrtle Beach, SC (803) 946-0414.

Circle No. 270

* DC-10 GHz Voltage-variable Attenuator

MWJ5268 The model HMC121C8 GaAs MMIC SMT voltage-variable attenuator offers wide bandwidth of DC to 10 GHz, low phase shift vs. attenuation, 25 dB attenuation range and simplified voltage control. An on-chip reference attenuator for use with an external op-amp is included to provide simple single voltage attenuation control of 0 to ­3 V. The unit is ideal in designs where the analog DC control signal must control RF signal levels over a 25 dB amplitude range. Applications include AGC circuits and temperature compensations of multiple gain stages in fiber-optic transmitter modules, microwave point-to-point and VSAT radios.

Hittite Microwave Corp.,
Chelmsford, MA (978) 250-3343.

Circle No. 268

*          Wireless Receiver Modules

The second generation of LC-Series receiver modules feature enhanced performance, reduced size and lower cost. When paired with an LC-Series transmitter, these SMD receiver modules provide a complete solution for the wireless transfer of serial, control and command information over distances in excess of 300 feet. They operate in the 260 to 470 MHz band, making them appropriate for domestic as well as export wireless applications. The modules interface to virtually any data source, including microcontrollers and decoder chips, which is ideal for use in applications such as remote control, keyless entry and periodic data transfer. No external components are required (except an antenna), allowing for easy design integration. Price: $7.88 in production volumes.

Linx Technologies Inc.,
Grants Pass, OR (800) 736-6677.

Circle No. 271

* Low Cost Coaxial Power Interconnect

MWJ5222 The PowerDirect™ low cost coaxial power interconnect is designed to deliver high currents  as close to the integrated circuit as possible. The new power distribution architecture provides an extremely low inductance and resistance path from the power source to its destination. The current carrying capacity is 50 A, providing transients (slew rates) as high as 400 A/µs with a minimal required board area of only 11 in2 . PowerDirect technology combines a high performance coaxial interconnect with an optimal printed circuit board layout pattern to provide a cost-effective solution for power delivery directly to high performance semiconductor devices.

INCEP Technologies Inc.,
San Diego, CA (858) 547-9925.

Circle No. 222

*          AMPS Full-band Receive Filter

MWJ5223 The model WSF-00145 AMPS full-band receive filter offers 0.07 dB (max) insertion loss and 15 dB (min) return loss within the 824 to 849 MHz passband. Rejection is specified at 60 dB (min) from DC to 800 MHz and 869 to 2000 MHz. The unit operates over the ­20° to +70°C temperature range, and applications include preselect filtering for macro and micro cellular systems and general-purpose cellular test systems. Size: 5.44" * 3.69" * 2.90" (excluding N-F connectors).

K&L Microwave Inc.,
Salisbury, MD (410) 749-2424.

Circle No. 223

*          1-40 GHz Directional Detector

MWJ5250 The model 201040013 broadband directional detector offers 13 dB nominal coupling and covers the entire frequency band of 1 to 40 GHz. Frequency sensitivity with respect to output is ±1.7 dB (min), directivity is 14 dB (min) from 1 to 20 GHz and 10 dB (min) from 20 to 40 GHz. SWR is 1.5 (max) 1 to 20 GHz and 1.7 (max), 20 to 40 GHz. Insertion loss, including coupling, is 1.1 dB (max), 1 to 20 GHz and 1.8 dB (max), 20 to 40 GHz. Low level sensitivity is 20 µV/µW (min). The model is available with input connectors of 2.4 mm or K female. Other narrower frequency bands are available. Delivery: stock to three weeks.

Krytar, Sunnyvale, CA (408) 734-5999.

Circle No. 250

*          Wireless Loads

MWJ5225 The 480 series medium power, 50 O wireless loads dissipate 50 W average power (5 kW, peak) through natural air convection with 1.05 (typ) SWR to 2 GHz, 1.15 to 4 GHz and 1.25 to 6 GHz. The units feature brass connectors, silver-plated contact pins, virgin electrical-grade Teflon® insulation within the connectors and rugged anodized aluminum housings designed for enhanced heat transfer. The loads are offered in type N, SMA, BNC and TNC connector styles in both male and female configurations. Terminations are available with power ratings down to 1 W and frequency ranges up to 18 GHz.

MECA Electronics Inc.,
Denville, NJ (973) 625-0661.

Circle No. 225

*          Two-way Power Splitter

The model D2-14FN two-way power splitter covers all frequencies from 800 to 2200 MHz, meeting the latest needs to distribute wireless signals within buildings. Applications include systems using antennas and Leaky-Line, where low loss and complete reliability are essential. An input SWR of less than 1.15, passive intermodulation below ­140 dBc and insertion loss below 0.1 dB will appeal to system designers trying to meet tough performance criteria. When compared to most conventional power dividers, the D2-14FN is more ruggedly constructed and reflects less power back to the transmitter. The shape allows simple attachment to pole or wall using the clip provided, and the hex-style N connectors allow consistent tightening to a specified torque.

Livingston, NJ (973) 992-7700.

Circle No. 227

*          Inlet/Outlet Connector

MWJ5226 The model IEC 320 AC inlet/outlet connector meets the need for an industry-standard AC receptacle while providing OEMs with cost-savings opportunities. The built-in ground clip furnishes direct cabinet grounding, eliminating the need for a ground wire or connection, which, in turn, simplifies assembly and reduces assembly costs. The grounded IEC 320 receptacles meet UL and CUL standards, and the contacts and ground clip are made of copper alloy with a bright tin plating. The insulator is black polycarbonate and carries a 94V-0 rating. Maximum operating voltage is 250 V AC at a maximum current of 15 A. Contact resistance is 20 mO, with an insulation resistance of 100 MO at 1500 V AC. Operating temperature is ­65° to +125°C. Delivery: stock.

Methode Connector Products,
Rolling Meadows, IL (847) 392-3500.

Circle No. 226

*          Stripline Power Dividers

MWJ5228 This family of stripline power dividers includes two-way, four-way and eight-way configurations. All units provide low SWR and good isolation over the ­55° to +125°C temperature range. The MDC2200 and MDC2400 series provide two- and four-way division, respectively, from 0.5 to 18 GHz in octave and broadband models. The MDC2800 and MDC8PX00 series are eight-way dividers covering 0.75 to 18 GHz and 0.2 to 18 GHz, respectively, in narrow and broadband frequency ranges.

MIDISCO, Islandia, NY (800) 637-4353.

Circle No. 228

* Millimeter-wave Harmonic Mixers

MWJ5272 This line of harmonic mixers uses a planar design with a GaAs beam-lead diode and can be used with frequency counters to extend their range up to 110 GHz. When combined with an optional LO/IF diplexer they extend the frequency range of many spectrum analyzers to 110 GHz.

Spacek Labs Inc.,
Santa Barbara, CA (805) 564-4404.

Circle No. 272

* Dual-channel, High Isolation, Low Loss Switch Filter Bank

MWJ5229 The model SFB-2DR-8F-AA870 switch filter bank operates from 7.8 to 8.8 GHz in two channels with an isolation of 70 dB (min). SWR is 1.75 (typ) and channel rejection (at fO +450 MHz) is 45 dB (min). Channel insertion loss is 4 dB (max), with an insertion loss ripple of ¾ 0.5 dB p-p. Switching speed is ¾ 1 µs, and RF power handling is +25 dBm (max). The control is TTL compatible, and the product is designed for severe environments. Size: 4.73" * 1.00" * 1.97". Weight: ¾ 8.5 oz.

Planar Filter Co., Frederick, MD (301) 662-7024.

Circle No. 229

*          Resettable Fuses

MWJ5230 The nanoSMD™ series PolySwitch® resettable fuses are the smallest, surface-mount polymeric positive temperature coefficient units on the market. They comprise four devices in two basic package configurations, and allow designers of programmable controllers, human/machine interface devices and other electronic systems to protect up to 6 V from overcurrent surges of up to 40 A, and with operating currents up to 1.5 A. In combination with on-board resistance as low as 80 mO (typ), the fuses are also suitable for use in notebook PCs, monitors, motherboards and USB hubs and peripherals. Price: 25¢ (100,000). Delivery: two to four weeks (ARO).

Raychem Circuit Protection, a division of Tyco Electronics,
Menlo Park, CA (800) 227-7040.

Circle No. 230

*          Flexible Bulk Cables

MWJ5231 The Vital Links™ series bulk cable products offer a wide range of options specifically de-signed to provide extra performance margins for applications with demanding specifications. The DB and SI series are an economical performance upgrade over standard RG178, RG316 and RG142 cables. The SW series is a cost-effective, microporous polytetrafluoroethylene (PTFE) cable group offering much better flexibility and performance than solid PTFE cables. The KW series is a flexible, high power and ultra low loss cable group. KW800 has a loss factor of only 2.2 dB/100 ft at 1 GHz and can be formed by hand into a 4" (dia) loop without using special mandrels or bending apparatus.

Semflex Inc., Mesa, AZ (800) 778-4401.

Circle No. 231

*          Miniature Diplexer

MWJ5234 The model W2446D diplexer is free of intermodulation distortion (IMD) and designed for video reception and transmission in the UMTS band. Two standard +43 dBm input test signals produce < ­100 dBm of IMD signals. Insertion loss of the 60 MHz DCS/UMT BW (2110 to 2170 MHz) is 1 dB. Return loss is better than ­17 dB and Tx-to-Rx isolation is > 65 dB. Power handling is > 100 W CW, and peak power rating is > 1.5 kW. Type-N connectors are standard and SMA connectors are optional for low power applications. Operating temperature is ­40° to +70°C. Size: 1.0" * 2.0" * 5.0".

Wireless Technologies Corp.,
Springdale, AR (501) 750-1046.

Circle No. 234

*          Ceramic Bandpass Filters

MWJ5232 The MPC series ceramic bandpass filters integrate the latest ceramic and packaging tech-nologies in a full line of highly stable filters for utilization in wireless and telecommunications markets. The ceramic used yields a high in-circuit Q, resulting in low in-band insertion loss. The series features a center frequency of 881.5 MHz and bandwidth of 25 MHz. Insertion loss is 2.6 dB (max), with an attenuation of ­12 dB at 849 and 914 MHz. System impedance is 50 O. The MPC bandpass filters are most commonly used in cellular base station and other wireless applications. Size: 0.394" * 0.532" * 0.165".

Spectrum Control Inc., Fairview, PA (814) 835-1650.

Circle No. 232

*          UHF Stripline Isolators and Circulators

MWJ5233 These high power, low loss UHF-band isolators and circulators are available with stripline tab interfaces to operate in the 400 to 800 MHz TV  and communications frequencies. In bandwidths up to 20 percent, these units are rated for 250 W CW with typical specificationss of 20 dB isolation, 0.25 dB (max) loss and 1.25 (max) SWR. SMA connectors are also available. Size: 2.0" * 2.0" * 0.625".

UTE Microwave Inc., Asbury Park, NJ (732) 922-1009.

Circle No. 233


*          Multichannel Booster Amplifiers

MWJ5235 The model 50289-MCBA multichannel, bi-directional booster amplifiers provide low noise, a high degree of filtering, automatic gain control and a wide range of frequency selection. The units enable two-way communication systems to provide coverage in areas that are normally beyond a system's reach. The MCBA-8 consists of 16 highly selective channelized amplifiers configured for an eight-channel, full duplex repeater and operates over the ­20° to +60°C temperature range. An RS-232 interface port allows all system parameters to be programmed by an external PC. The system is housed in a NEMA-12 enclosure. Size: 72" * 24" * 24". Weight: 650 lbs (per cabinet).

AeroComm, Englewood Cliffs, NJ (201) 227-0066.

Circle No. 235

*          RFIC Amplifier

The model MGA-52543 radio-frequency integrated circuit (RFIC) amplifier provides a low noise figure and high linearity performance for cellular/PCS base station low noise amplifier applications. It is extremely useful for amplifier and driver applications in base station, wireless local loop, wireless local area network and other wireless communications applications for low noise figure and high linearity throughout the 400 MHz to 6 GHz frequency range. The amplifier has a 1.9 dB (typ) noise figure, 14.2 dB associated gain and +17.5 dBm third-order intercept point at 2 GHz. The unit is supplied in the four-lead SC-70 surface-mount plastic package, and operates with a single bias of 5 V at 53 mA.

Agilent Technologies,
Wetzlar, Germamy +49 6441 92 4629.

Circle No. 236

*          Differential I/O Amplifier

MWJ5239 The model KH600 differential input/output (I/O) amplifier combines over 9 V p-p output capability with a bandwidth of DC to 1 GHz. The inputs and outputs are 100 O differential (50 O single ended). The unit offers 14 dB (5 V/V) of fixed gain and 45 mA of output current. It has a 13,000 V/µs slew rate and operates from a ±5 V power supply. Fast rise time, low overshoot and linear phase make the KH600 ideal for high speed pulse amplification. These properties plus low distortion make the amplifier well suited to many communications applications.

KOTA Microcircuits Inc., Loveland, CO (877) 667-7373.

Circle No. 239

*          5-450 MHz Monolithic Amplifier

MWJ5240 The model HELA-10C 75 O monolithic amplifier kit contains a broadband 5 to 450 MHz HELA-10 amplifier and two matching transformers. It is designed to minimize distortion in multicarrier environments by providing 48 dBm (typ) IP3 and 88 dBm (typ) IP2. The 12 V amplifier also delivers 11.4 dB (typ) gain response with ±0.4 dB flatness over the frequency range and a noise figure of 3.5 dB (typ). An evaluation board TB-30 is also available. Price: $19.95 (1 to 9).

Mini-Circuits, Brooklyn, NY (718) 934-4500.

Circle No. 240

* High Performance, Surface-mount Linear Amplifier

The model ACA2401S7 24 V high performance cable distribution amplifier meets increased demands for advanced services and additional bandwidth in cable distribution networks. It has exceptionally low distortion and noise figure, and also satisfies the European Cenelec Specification. The amplifier is designed for broadband cable distribution systems, including head-ends, distribution networks, fiber nodes, line expanders and system amplifiers. The ACA2401S7 features 21.5 dB gain and 18 dB (min) return loss, and is housed in a 16-pin SOIC. Price: $18.45 (10,000).

ANADIGICS, Warren, NJ (908) 668-5000.

Circle No. 238

*          5 GHz Power Amplifier

The model RTPA 5250 wideband, high efficiency power amplifier/switching module is designed for wireless local area network (WLAN) data transmission applications in the 5 GHz range. The module offers 7 dB flat gain headroom, integrated PHEMT switches and internal impedance matching. It helps wireless LAN designers match the high data transmission rates commonly achieved by wired networks, while exploiting the operating advantages of the 5 GHz spectrum. The amplifier's design is optimized to deliver 23.5 dBm output power at 1 dB compression, while achieving flat gain linearity of 40 dB with 7 dB peak-to-average power ratio without distortion. The gain remains within a range of ­0.5 to 1.5 dB for output power levels from 0 to 16.5 dBm (avg). Internal impedance matching is provided to 50 O.

Raytheon Co., Andover, MA (978) 683-8663.

Circle No. 273


*          GOES/MARISAT Antenna Feed

The model 0021-800 GOES/MARISAT, prime focus antenna feed is designed for use in a reflector with an F/D ratio of 0.36 to 0.38. It is a highly efficient, rugged, electronically heated and self-contained feed system that can be used in harsh weather environments. The system operates over a temperature range of ­79° to +50°C. The feed includes a remote polarization control, LNA power control and status indicators. Size: 22" diameter, 30" long.

Seavey Engineering Associates Inc.,
Pembroke, MA (781) 829-4740.

Circle No. 274

*          Embedded Antenna

MWJ5275 The model 703599 Covant™ series embedded antenna is designed for use in wireless applications including 802.11B, Bluetooth, wireless Internet, wireless LAN, bar code scanners and point-of-purchase RFID. It is custom designed for specific size, shape, weight and performance specifications. The antenna supports a 2.400 to 2.458 GHz frequency range, has SWR of 2.0 (max), impedance at 50 O and linear polarization.

Tecom Industries Inc., a TRAK Communications company, Chatsworth, CA (818) 341-4010.

Circle No. 275

*          Cellular/GPS Dual-system Antennas

MWJ5241 These dual-system cellular/GPS antennas expand the company's Tele-Locator™ line to in-clude rooftop and trunk lid mounting options. The antennas combine active GPS location identification with broadband cellular for complete frequency coverage without tuning. The ASPD1860TGPS rooftop model is 13.1" tall with a high performance 5/8 wavelength upper whip over 1/4-wave lower section, delivering 4 dB omnidirectional gain. This model can be installed using an existing 3/4" hole. The ASPD914TGPS trunk lid antenna is constructed of flexible plated steel cable with a highly durable plastic cover. This unity gain antenna has a 3.2" whip and requires a ground plane. It also has a black ABS radome and installs easily without drilling. Both models cover the 824 to 894 MHz cellular and 1575.42 ±5 MHz GPS frequency ranges with a cellular SWR of < 2 and < 1.5 for GPS. Price: $165.00 (ASPD1860TGPS); $174.98 (ASPD914TGPS).

Antenna Specialists, an Allen Telecom company,
Cleveland, OH (440) 349-8400.

Circle No. 241

*          Cross-polarization Antenna

MWJ5242 The model AP8-1850/09OD/XP panel antenna is ideally suited for cellular sector applications where the provider requires polarization diversity. This x-pol broadband antenna is designed for 1800 and 1900 MHz applications where up to ±45° polarization diversity is required. It has superior electrical performance and cross-polarization ratio and a small profile for low visibility. Delivery: stock.

Kathrein Inc., Scala Division, Medford, OR (541) 779-6500.

Circle No. 242

*          Low Profile Vertical Antennas

MWJ5243 The MLPVDB series antennas feature a patent-pending design that provides superior gain flatness vs. frequency performance. These dual-band antennas reduce overall inventory requirements considerably by providing a single-antenna solution to cover two frequency band requirements. The MLPVDB800/
1900 covers the cellular and PCS frequencies; while the model MLPVDB902.2400 covers the 900 MHz and 2.4 GHz ISM frequencies. Both models feature a low profile design that makes them ideal for any mobile or base station applications requiring minimum visibility. They utilize a standard 3/4" hole mount that makes the replacement of existing antennas simple and economical. Color options include a standard black over chrome base finish, white over chrome base finish or all black finish.

Hanover Park, IL (800) 323-9122 or (630) 372-6800.

Circle No. 243

*          6' to 18' Radomes

MWJ5244 These large-scale radomes range in diameters from six to 18 feet with optional turn-key ac-cessories, including lightning rods, mounting risers,  a lifting harness, access doors, landing lights, heating and air conditioning. The units are self-supporting, shell-type structures designed for high strength and resistance from temperature, humidity, snow load, rain and wind. Selected low loss dielectric constant resins are used for maximum signal transmissivity at RF frequencies up to 100 GHz. Both styles of radomes can be mounted to a flat deck or may be outfitted with optional risers. Truncated structures can be mounted at any plane between the mounting base and the equator of the radome for applications requiring less than the full height of the radome. All units conform to MIL-R-7705.

Pacific Radomes Inc. (PRI), Santa Clara, CA (408) 727-4777.

Circle No. 244

*          Tri-band, Low SAR Embedded Antenna

This tri-band antenna is designed to support GSM phones. It lowers hardware costs by supporting multiple feed points and reduces RF exposure by using an optimal directional pattern and a metallized plastic substrate. Operating in the 900, 1800 and 1900 MHz GSM frequency bands, the antenna offers a significant reduction in specific absorption rate (SAR). Designed with separate GSM and DCS/PCS feed points and with 20 dB of isolation between the feed points, eliminating the need for a hardware-based duplexer.

RangeStar Wireless, Aptos, CA (888) 647-7100 or (831) 661-4200.

Circle No. 245

*          LMDS CPE Antennas

These LMDS customer premises equipment (CPE) antennas cover the LMDS bands of 24 to 33 GHz (model WR-34) and 26.4 to 40.0 GHz (model WR-28) with gains of 33 to 35 dBi. Overall diameter is just 10 inches, and depth is five inches. Delivery: stock.

Smartant USA, c/o HD Communications Corp., Systems Group,
Ronkonkoma, NY (631) 588-9661.

Circle No. 246


*          Twin-transistor MESFET

MWJ5247 The model NES1720P-140 partially matched, twin-transistor, L-band GaAs MESFET is designed to serve as an output stage in power amplifiers and delivers 140 W of output power. It also provides 200 MHz instantaneous bandwidth, giving it the ability to serve 1.7, 1.8 and 1.9 GHz applications simultaneously. The MESFET features 42 percent (typ) high power added efficiency, so power consumption is low. The low thermal resistance of 0.4 °C/W results in cooler operation and the ability to operate at a higher bias current to achieve higher linearity. A twin-transistor device, the NES1720P-140 is partially matched and its two sides can be combined externally in either a balanced or push-pull configuration. Price: $215 (100).

California Eastern Laboratories (CEL),
Santa Clara, CA (408) 988-3500.

Circle No. 247

*          20 GHz Bandwidth Optical Receivers

The model DSC-R401ER amplified optical receivers offer a ­3 dB (typ) bandwidth of 100 kHz to 20 GHz. These fiber-coupled photodetectors are targeted at telecommunication system designers of OC-192/STM-64 systems using the return to zero format with forward error correction. To obtain low jitter and clean eye diagrams, systems engineers need front-end bandwidth that exceeds the bit rate of 12.3 gbps by 50 percent. These new InGaAs PINs and preamplifiers provide that extra bandwidth, along with 100 V/W and 2 Vp-p linear output. Delivery: six weeks.

Discovery Semiconductors Inc., Princeton Jct., NJ (609) 275-0011.

Circle No. 248

*          Enhancement-mode Lateral MOSFET

The model PTF 102006 internally matched common source N-channel enhancement-mode lateral MOSFET is specifically intended for large-signal amplifier applications from 2.4 to 2.5 GHz. This power transistor is rated at 25 W (min) power output. Nitride surface passivation and gold metallization ensure excellent device lifetime and reliability. This unit offers guaranteed performance at 2.5 GHz, 28 V with output power of 25 W (min) and linear gain of 11 dB (typ).

Ericsson Microelectronics, Hill, CA (877) 465-3667.

Circle No. 249


*          PLL Synthesizers

The ADF411x family of phase-locked loop (PLL) synthesizers deliver good phase noise performance for wireless applications and includes two series of chips. One series is pin-compatible with the LMX23xx PLL products and can be used in existing designs; the other chips are intended for use in new designs, where the additional features such as software-programmable charge-pump current and anti-backlash pulse width can be used for an advantage. The family can implement a state-of-the-art local oscillator for the upconversion and downconversion of RF signals in wireless applications and when combined with a VCO and loop filter, form a complete PLL.

Analog Devices, Norwood, MA (781) 329-4700.

Circle No. 252

*          Frequency Synthesizers

This PLL synthesizer family is designed for next-generation wireless phone, satellite, two-way paging, two-way radio and wireless local-area network applications. The units offer good performance and software programmability, and will decrease the number of components typically required to implement a RF subsystem. The synthesizers feature settling times under 200 µs and offer phase noise as low as ­95 dBc/Hz. The frequency step sizes are under 100 Hz and can be programmed to accommodate almost any frequency plan and step size. Power consumption is as low as 14 mW. Price: < $3 (10,000).

Conexant System Inc., Nepean, Ontario, Canada (613) 274-0922.

Circle No. 253

*          Leadless Surface-mount HEMTs

MWJ5254 These low noise, high gain, leadless surface-mount high electron mobility transistors (HEMT) boost gain by 1.5 dB at frequencies through K band. The model MGF4953A targets the first stage of low noise amplifier applications with its 13.5 dB (typ) associated gain and 0.40 dB (typ) noise figure at 12 GHz. The second and following stages are served well by the model MGF4954A, which features the same high gain but with a slightly relaxed noise figure of 0.60 dB. The devices are packed in tape-and-reel format for use with automated assembly equipment. Size: 2.15 * 2.15 * 0.80 mm.

Mitsubishi Electronics America Inc.,
Sunnyvale, CA (408) 730-5900.

Circle No. 254

*          Digital Transceiver IC

The model MC13760 multi-protocol, multiband digital transceiver IC combines the major building blocks required for next generation multiple purpose, multiband wireless products. The device uses the company's advanced RF BiCMOS process to provide a high level of design flexibility through a serial programming interface that enables innovative and cost effective DigitalDNA™ platform solutions. It is software programmable and operates over a wide range of input frequencies multiband, multi-mode, GSM/DCS/TDMA/AMPS cellular phones, including GPRS. The MC13760 operates at 2.75 V and provides a deep sleep mode with drain current as low as 50 µA. Price: $10.75 (10,000).

Motorola Inc.,
Phoenix, AZ (480) 413-4991.

Circle No. 276

*          Commercial PLL

The model 400-2200 PLL generates frequencies from 2000 to 2400 with a 1000 kHz step size. It requires 24 mA (typ) of current from a 5 V supply voltage. Phase noise at 1 kHz offset is ­86 dBc/Hz (typ) and ­110 dBc/Hz (typ) at 100 kHz offset. Phase detector spurious suppression is ­70 dBc, and output power is 0 dBm (typ). Second harmonic suppression is ­11 dBc (typ), and third harmonic suppression is ­16 dBc (typ). Size: 0.60" * 0.60" * 0.13".

Vari-L Company Inc.,
Denver, CO (303) 371-1560.

Circle No. 255


* Phase-change Thermal Interface Pads

MWJ5256 THERMFLOW™ T725 phase-change thermal interface materials provide low thermal resistance paths between semiconductor components and their heat sinks in demanding electronic products. The material has a low thermal impedance of 0.03°C-in2 /W, and is inherently tacky to allow fast, accurate positioning without the thermal performance degradation typical of pressure-sensitive adhesives. The pads are provided in roll form on a carrier liner for convenient manual or automated assembly. THERMFLOW T725 is solid at room temperature, but softens at component operating temperatures. At this stage it conforms to surface irregularities to fill air gaps and form a very thin bond line. The pads are supplied kiss-cut in continuous roll form in 100-foot. Lengths, and include a pull-tab for easy removal of the protective top liner prior to heat sink installation. Price: 10¢/square inch.

a division of Parker Hannifin Corp., Woburn, MA (781) 939-4163.

Circle No. 256

*          Ultra-thin Urethane Foam

MWJ5278.tifx13 This ultra-thin 12-mil PORON® urethane foam is specifically developed for gaskets and pads in small, portable electronic devices, and exhibits excellent energy absorption and dimensional stability during processing. The foam consists of 0.010" cellular urethane supported by a 0.002" polyester film. It is cast to final thickness and offers an attractive finished surface on both sides. The thin cast material has outstanding resistance to compression, ensuring a long-lasting compressive seal in gasketing applications. As a firm material, the grade of urethane provides excellent protection against shock and vibration. In addition, the material exhibits low outgassing and meets stringent anti-fogging criteria allowing it to be used with contamination-sensitive liquid crystal displays (LCD) and optical components.

Rogers Corp.,
Rogers, CT (800) 755-6766 ext. 8857.

Circle No. 278


*          LCD Hot Bar Assembly Station

MWJ5258 The 5200 series Hot Bar system combines high precision bonding and display testing for assembling liquid crystal display (LCD) modules with flex circuit or heat seal connectors to FR4 circuit boards. Designed for high production environments, the system includes closed-loop pulsed heat bonding capability and post-assembly testing of LCD modules and is available in three size configurations. The 5200 series combines several assembly operations into a single workstation, thereby improving mobile-phone manufacturing quality and productivity.

MiroJoin Inc., Poway, CA (858) 877-2100.

Circle No. 258


*          Planar Simulation Software

Ensemble® version 7.0 is designed for simulation of planar structures found in RFICs, MMICs, PCBs and planar antennas. The new version includes solver technology called SVD FastSolve, and links to the company's optimetrics smart optimization and parametrics capability. Ensemble is a planar Method of Moments electromagnetic field solver for electronic, wireless and broadband component design.

Ansoft Corp.,
Pittsburgh, PA (412) 261-3200.

Circle No. 259

*          Synthesis Software

MWJ5260 S/FILTER synthesis software designs filters using a direct synthesis approach, which offers unprecedented ease of use and functionality for designing a variety of filter topologies. Users can arbitrarily place transmission zeros to notch-out unwanted frequencies. The direct synthesis forms a transfer function from the user's criteria and extracts a schematic from this function, making it possible to create customized filters with the desired response. The software is completely integrated into the company's GENESYS environment, and filter schematic and response plots are completely user-accessible and customizable. Price: $2490.

Eagleware Corp.,
Norcross, GA (678) 291-0995.

Circle No. 260


*          Miniature SMD Oscillators

These miniature SMD oscillators are designed for high density packaging with an industry-standard footprint, provide fast rise/fall times, are TTL/HCMOS compatible and offer a frequency range from 1.8 to 50 MHz. The model IS07.505B has a frequency stability of ±100 PPM (STD), while the model IS07.505B50 offers a ±50 PPM frequency stability.

International Crystal
Manufacturing Co. Inc. (ICM),
Oklahoma City, OK (800) 725-1426
or (405) 236-3741.

Circle No. 261

*          Surface-mount OCXO

The model QEO SV 94 surface-mount, oven-controlled crystal oscillator (OCXO) offers lower power and a much-reduced aging rate, and is intended for use in UMTS and GSM base station, broadband radio access (LMDS) and fixed access equipment (ADSL). This HCMOS oscillator has a tight frequency stability of ±40 PPB over the ­10° to +70°C frequency range from 5 to 40 MHz. Warmup time for the unit is two minutes at 25°C to within < 0.1 PPM of the nominal frequency. The QEO SV 94 will withstand a standard forced air reflow soldering profile of up to 260°C over 10 seconds. Tape-and-reel packing is available. Size: 1.0" * 1.0" * 1.4". Price: $55 (1000).

TEMEX Components,
Phoenix, AZ (623) 780-1995.

Circle No. 262

*          Ultra Low Noise VCO

MWJ5263 The model CLV1150E VCO utilizes patented design techniques to deliver unequaled SSB phase noise performance together with excellent harmonic suppression. It generates frequencies between 1100 to 1200 MHz within 0.3 to 4.7 V DC of control voltage, and is designed for the toughest outdoor applications. It is guaranteed to operate over the extended commercial temperature range of ­40° to +85°C. The device exhibits a clean spectral signal of ­111 dBc/Hz (typ) at 10 kHz from the carrier while attenuating the second harmonic to an unheard level of better than ­20 dBc. The CLV1150E operates off a 5 V DC source while drawing only 22 mA (typ), and provides the end user 2 dBm (nom) of output power into a 50 O load. Size: 0.50" * 0.50" * 0.22".

Z-Communications Inc.,
San Diego, CA (858) 621-2700.

Circle No. 263


*          Outdoor Communication Converters

MWJ5279 The series 100 synthesized frequency converters are designed for single and redundant operation in an outdoor environment. They are available in satellite communication bands from S band through Ka band and can be configured as separate upconverters and downconverters, or as a combination. Each unit has an RS422-485 remote monitor and control port and an RS232 local control port. They operate over the ­30° to +60°C temperature range and the gain is temperature compensated. An internal system temperature monitor is included. The units offer dual conversion, low intermodulation and phase noise distortions with no spectral inversion.

Miteq Inc.,
Hauppauge, NY (631) 439-9108.

Circle No. 279

* Electromechanical Switch Matrices

MWJ5264 These electromechanical switch matrices are based on a controlled area network (CANbus) interface, which provides simplicity and flexibility to the ever-increasing complexity of today's switch matrices. Developed specifically for the ATE market, the units include a full-access (fan-out) switch matrix that is designed to cover all present and future frequency bands for wireless applications. There are three basic configurations to this line of switch matrices: the model PN 2501, a standard 6 * 6 with six input and six output SP6T switches; the model PN 2502, a 6 * 6 full access (fan-out) with six input broadband power dividers and six output SP6T switches; and the model PN 2503, a 6 * 6 full access (fan-out) with six input low noise amplifiers, six input broadband power dividers and six output SP6T switches.

Dow-Key Microwave Corp.,
Ventura, CA (805) 650-0260.

Circle No. 264

*          6-18 I-Q Vector Modulator

MWJ5265 The model 7328H broadband I-Q vector modulator operates over a frequency range of 6 to 18 GHz. It has an enhanced modulation rate of > 50 MHz via 12-bit ECL control inputs for both I and Q channels. In addition, the modulator's has high performance characteristics include an attenuation range exceeding 60 dB with variation of amplitude vs. temperature of 0.04 dB/°C (max). The unit operates over a ­40° to +70°C temperature range and provides a full 360° of phase shift, absolute insertion phase accuracy vs. frequency of ±15° and a variation of phase vs. temperature of ±0.2°/°C (max). Size: 6.00" * 3.12" * 0.50".

General Microwave Corp.,
Farmingdale, NY (631) 630-2000.

Circle No. 265

*          Wideband Programmable Modulator

MWJ5266 The model HSP50415 wideband programmable modulator supports wideband applications such as picocell base stations, WLL, LMDS, MMDS, point-to-point microwave systems, smart antennas, VSAT and last mile wireless Internet applications. It combines shaping and interpolation filters, a complex modulator and timing and carrier numerically controlled oscillators plus a 12-bit, dual-channel digital-to-analog converter in a single 100-lead MQFP package. The programmability of the unit offers designers the flexibility to support a wide range of modulation schemes with a single design. The modulator features digital operation up to 25 Msps based on QPSK modulation. The programmable architecture is capable of supporting various modulation schemes up to 16-bit vector modulation. Price: $29.95 (1000).

Intersil Corp.,
Melbourne, FL (888) 468-3774.

Circle No. 266

*          VXI Coaxial Matrix

MWJ5251 The model 10081A VXIbus compatible 4 * 8 coaxial matrix is a C-sized message base unit that can easily interface between the UUT and various types of test equipment installed in the VXIbus enclosure. The unit's VXIbus compatibility also ensures mechanical and electrical plug-in installation to existing VXIbus ATE systems. The unit features four seven-segment displays that indicate which of the eight input signals is connected to each of the four outputs. The 10081A operates over the DC to 800 MHz frequency range with 50 dB isolation at 900 MHz. The contact rating is 28 V DC, 0.5 A and the unit is equipped with SMA connectors.

Matrix Systems Corp.,
Calabasas, CA (818) 222-2301.

Circle No. 251


*          5.8 GHz Digital Microwave Radio

The TRACER® 5.8 GHz digital microwave uses spread spectrum technology to provide two independent T1 or E1 communication links. It operates in the industrial, scientific and medical (ISM) band as authorized under part 15.247 of FCC rules. The TRACER gives users an alternative to operating wireless radio equipment in the traditional 2.4 GHz band. The unit also can be used to provide connectivity solutions for temporary or emergency requirements, to solve last-mile accessibility problems where cable or copper might not be available, or as an economical solution to eliminate expensive recurring monthly charges. It is the industry's first NEBS Level 3 compliant spread spectrum radio.

ADTRAN Inc., Huntsville, AL (800) 923-8726.

Circle No. 267


*          Spectrum Analyzers

The FSP family spectrum analyzers for GSM, microwave or radar applications offer upper frequencies of 13 and 30 GHz. The model FSP13 is capable of testing the spurious emissions (between 9 kHz and 12.75 GHz) stipulated in the GSM specification, and an innovative firmware allows adjacent-channel power (ACP) measurement to W-CDMA/3GPP. The electronic attenuator increases the availability for use in production and guarantees any number of switching operations in a wear-and-tear-free setting range of 30 dB in 5 dB steps. The FSP can be connected to networks such as 100 Base-T via the LAN interface, which is also available as an option.

Rohde & Schwarz,
Munich, Germany
+49 89 4129013779.

Circle No. 269

*          Handheld Spectrum Analyzer

MWJ5280 The model MS2711A fully functional spectrum analyzer provides field engineers and technicians with unprecedented measurement flexibility in field environments and applications requiring mobility. Featuring a rugged, lightweight, battery-operated design, the unit enables users to quickly and easily locate, identify, record and solve communication system problems without losing measurement accuracy. It is powered by a lightweight NiMH battery and covers the 100 kHz to 3 GHz frequency range, making it ideal for cellular, data, paging, PCS, satellite, SMR, wireless Internet and WLAN/WPBX applications. The MS2711A features 65 dB dynamic range, ±1.5 dB amplitude accuracy and a full-span noise floor of ¾ ­97 dBm. Price: $7000. Delivery: four to six weeks. Weight: 4 lbs.

Anritsu Co., Richardson, TX (800) 267-4878.

Circle No. 280