- Buyers Guide
Voltage Variable Attenuator
The model AV141-321 Gallium Arsenide (GaAs) IC PHEMT voltage variable attenuator provides high end performance from 2.7 to 4.0 GHz. The attenuator is designed for use in power control applications for 3.5 GHz fixed wireless LAN applications. It has a minimum attenuation of 25 dB, as well as typical insertion loss of 0.7 dB. It also features positive 0.2 to 1.2 V control voltage and low cost. Featuring a surface-mount QFN-12 package, the AV141-321 is well suited for high volume applications requiring low cost and high frequency performance. Price: $1.29 (100,000).
Alpha Industries Inc., Haverhill, MA (978) 241-7000.
Circle No. 216
The 600-T-QFN series is a new 600 W dry termination for laboratory, production and field testing applications in the frequency range of DC to 2.4 GHz. The unique feature of the product is the use of quick change connectors that allow fast and easy field replacement to mate up to a variety of signal sources. The 600-T-QFN ships with N female connectors, but TNC, LC, 7/16 and EIA flange type connectors are also offered. The termination has an SWR of 1.1 at mid-band and ambient temperature is -40° to +40°C.
Bird Component Products Inc. (BCP), Largo, FL (727) 547-8826.
Circle No. 217
With passbands from 824 to 849 MHz and 869 to 894 MHz, this full band AMPS duplexer has maximum passband loss of 1.3 dB. The passband SWR is 1.3 and the co-channel rejection is > 75 dB. Size: 5.0" x 2.7" x 1.5".
Eastern Wireless Telecomm Inc. (EWT), Salisbury, MD (410) 749-3800.
Circle No. 218
Dual Directional Loop Coupler
The model CF series of dual directional loop couplers is designed to meet the special needs of the power amplifier market, which benefits from its low loss, high power handling and low passive intermodulation. These features make it an ideal monitor of forward and reverse power required in the latest multi-carrier power amplifiers. In these dual couplers, performance is optimized over customer specified frequency range, providing very precise coupling values and excellent unit-to-unit tracking. Air dielectric main lines provide the extremely low insertion loss required to handle high power levels. They are available for use over modest bandwidths anywhere in the 100 to 3000 MHz frequency range. Single units, which monitor only a single direction, are also available.
Microlab/FXR, Livingston, NJ (973) 992-7700.
Circle No . 220
The model FX325B is a miniature-crystal designed for wireless, portable, handheld and other applications where size and weight are critical. Typical devices that will benefit from this crystal include Bluetooth, PCMCIA cards, PDAs, laptops and a variety of other portable and handheld devices. It offers a frequency range of 20 to 50 MHz, a frequency tolerance of ±50 ppm, a frequency stability of ±50 ppm and an operating temperature range of -10° to +60°C. Other tolerances, stabilities and operating temperature ranges are available. Size: 3.2 x 2.5 x 0.8 mm. Price: $1.46 (3000). Delivery: eight to 10 weeks (ARO).
Fox Electronics, Fort Myers, FL (888) 438-2369.
Circle No. 219
This full line of filter plates features an extended capacitance range of 22 through 5000 pF standard. They eliminate EMI/ RFI interference and provide a means of interfacing voltage and/or data to areas of a system while ensuring electromagnetic compatibility. The company markets Easy Mate,® Easy Mate® Jr., Bolt-in and custom filter plates for electronic systems in virtually all industries including telecommunications, aerospace, industrial and medical. Easy Mate filters are designed to snap into the chassis, thus reducing installation time and overall costs attributed to mounting hardware and prepwork. Bolt-in style plates eliminate the need to assemble filters into a bulkhead, offering total cost savings versus individually installed discrete filter elements.
Spectrum Control Inc., Fairview, PA (814) 835-1650.
Circle No. 223
Surface-mount Film Capacitors
This series of compact, low profile surface-mount devices is an addition to the company's FILMTRIM® plastic dielectric trimmer capacitors. Ideal for RF circuitry, telecommunication, CATV and broadband applications, this new series offers four capacitance ranges from 0.5 to 4.5 pF, to 1 to 20 pF. The dielectric used is PTFE film. Quality factor is greater than 1000 when measured at 10 MHz. Operating temperature is -25° to +85°C. Resistance to soldering heat is 260°C for 10 seconds. Size: 6.8 x 5.4 x 2.6 mm (max).
Sprague-Goodman Electronics Inc., Westbury, NY (516) 334-8700.
Circle No. 224
Low Pass Filters
This line of low pass filters is designed for high temperature reflow process. Covering frequencies from DC to 2 GHz, these new models feature excellent group delay variation, low insertion/high return loss over the passband and high attenuation in the stopband. Ultimate attenuation of these new models exceeds 80 dB for frequencies of up to 6 GHz. Size: 0.52" x0.92" x 0.33".
Synergy Microwave Corp., Paterson, NJ (973) 881-8800.
Circle No. 225
Dual Band Diplexer
The model W9180D eliminates the need for two tower feed cables at the basestation. This miniature cavity diplexer accepts 900 MHz GSM and 1.8 GHz DCS signals. Covering the full DCS and GSM bands with < 1.3 dB of insertion loss with between bands isolation > 65 dB. Return loss is > -18 dB all ports. Power capability is > 50 W both bands. Connectors are SMA or type N. Size: 0.2" x 3.0" x 5.0".
Wireless Technologies Corp., Springdale, AR (501) 750-1046.
Circle No. 227
Surface-mount MMIC Mixers
The model MH101 and MH102 high linearity MMIC mixers are ideally suited for 3G UMTS wireless infrastructure equipment. The GaAs IC mixers provide excellent technology in a low cost RFIC, by offering high dynamic range with input IP3 greater than +30 dBm and input P1dB of 16 dBm across the entire UMTS frequency range of 1.9 to 2.2 GHz. High IP3 and a low cost package offer good linearity in a single chip solution. Housed in standard surface-mount SOIC-8 plastic packages, the mixers do not require any external baluns, bias, matching or decoupling elements. Price: $2.25 (10,000).
WJ Communications Inc., San Jose, CA (408) 577-6200.
Circle No. 228
RF Coaxial N Adapters
This series of precision N adapters feature metrology-grade construction and come in straight and right angle configurations. They feature gold plat- ed 303 stainless steel bodies, BeCu center conductors, Teflon® insulators, and come with a swept center contact to assure low SWR. When tested as mated pairs, they exhibit 1.2 SWR from DC to 18 GHz. Available in female-female, female-male and male-male combinations, the adapters are rated at 50 W and operate over a -55° to +85°C temperature range. A wide variety of other adapters are also offered. Price: $110.
Tru-Connector Corp., Peabody, MA (800) 262-9878 or (978) 532-0775.
Circle No. 226
Flexible Microwave Cable
The M-FLEX™ series of flexible microwave cable provides excellent overall performance at higher frequencies at an economical price. The cables offer improved loss and phase stability, as well as excellent durability, making them well suited for microwave signal transmission applications. They are designed with a solid PTFE dielectric core underneath a precision wound layer of metallized tape for improved microwave shielding. The cables also feature a round wire braid and FEP outer jacket for added strength and protection. The result is cables with isolation > 90 dB for minimal cross talk and maximum system performance. Two M-FLEX cable types are available, both of which have a maximum frequency of 18 GHz.
MICRO-COAX, Pottstown, PA (800) 223-2629.
Circle No. 249
Broadband Microwave Chip Capacitor Models
Models for surface-mount inductors, resistors and capacitors spanning DC to 10 GHz are available for components from several vendors and for a wide range of nominal parts values and sizes. The substrate-dependent models incorporate adjacent ground effects, and the parameters scale with the substrate thickness and dielectric constant. The models are equivalent circuit topologies with effective series resistance being determined with precision measurement techniques. Substrate-dependent interconnect models are also available to ensure simulation accuracy in a variety of component configurations.
Modelithics Inc., Terrace, FL (813) 866-6335.
Circle No. 250
The model KAW4000 amplifier is a compact unit that delivers minimum power output of 500 W across the entire 6 to 600 MHz frequency range. The amplifier is ideal for electronic warfare/electronic counter measures as well as general military communications. The KAW4000's compact design enables it to be used for both mobile and static installations. It is suitable for stack and rack systems and requires no tuning, band switching or adjustments to operate. The unit is available commercial off the shelf ready to use.
AR/Kalmus, Bothell, WA (425) 485-9000.
Circle No. 229
Ultra-linear Power Amplifier
The model SM1923-44L solid-state GaAs amplifier is designed for the PCS and UMTS markets. Its compact size and ultra-linearity make it ideally suited for 3G systems using CDMA, W-CDMA, OFDM, TDMA or high dynamic multi-carrier applications. The amplifier covers bands from 1.9 to 2.3 GHz, has 53 dB of linear gain, a P1dB of +44 dBm (min), 10 W of OFDM and an OIP3 of +63 dBm. DC operation is at +12 V with current typically less than 10 A. Features include temperature compensation, over voltage protection, thermal protection with auto reset and logic on/off control. RF sampling, power detection and high speed switching are available. Size: 7.5" x 4.0" x 3.3".
Stealth Microwave, a division of SSB Technologies Inc., Trenton, NJ (888) 772-7791 or (609) 538-8587.
Circle No. 234
GaAs InGaP HBT MMIC Power Amplifier
The model HMC407MS8G heterojunction bipolar transistor (HBT) MMIC power ampli- fier, which operates between 5 and 7 GHz, is packaged in a low cost, surface-mount 8 leaded MSOP package with an exposed base for improved RF and thermal performance. It provides 15 dB of gain and +29 dBm of saturated power at 28 percent PAE from a +5 V supply. Power down capability is available to preserve current consumption when the amplifier is not in use. The amplifier is ideal for usage in UNII and HiperLAN applications.
Hittite Microwave Corp., Chelmsford, MA (978) 250-3343.
Circle No. 231
The model AD1020 is an amplifier/doubler that doubles a 10 to 20 GHz input to a 20 to 40 GHz output. Input levels from -2 to +2 dBm are converted to a typical output level of +7 dBm. The AD1020 is designed for fiber-optic clock-recovery/acquisition applications and is available in both connectorized and carrier outlines. It has a typical fundamental suppression of 15 dBc and a third harmonic suppression of 25 dBc. The supply requirements are +5 V at 100 mA and -5 V at 10 mA.
Marki Microwave Inc., Morgan Hill, CA (408) 778-4200.
Circle No. 232
High Power GaAsFET Amplifiers
This family of high power amplifiers covers the 0.7 to 3.0 GHz frequency range. The small, lightweight solid-state amplifiers are available with output powers of 10, 30, 50, 100 and 200 W. This frequency range covers GSM, PCS, DCS and the emerging 3G bands, making the amplifiers suitable for RF device testing and for PIM testing. GaAsFET technology means that the usable linear power is typically only 0.75 dB below the saturated output power level.
OPHIR RF Inc., Los Angeles, CA (310) 306-5556.
Circle No. 233
Ultra Broadband Amplifier
The model CMM6004 power amplifier is designed for transmit and receive functions in fixed wireless and wireless LAN applications where high linearity is required. The amplifier operates from 0.25 to 7.00 GHz and offers 18 dB of gain, 24 dBm P1dB, an exceptional output intercept point (OIP3) of 41 dBm and current consumption of 180 mA. It has the flexibility of being optimized for a number of wireless applications. The CMM6004 is an ideal solution when used as a driver amplifier in applications including cellular and PCS operating from 0.8 to 2.2 GHz, MMDS from 2.2 to 2.7 GHz, WLAN at 2.4 GHz, WLL at 3.5 GHz and HiperLAN and UNII from 5 to 6 GHz. Size: 3.0 x 3.0 x 1.5 mm. Price: $2.50.
Celeritek Inc., Santa Clara, CA (408) 986-5060.
Circle No. 230
Power Amplifier Module
The model IBM2018 AMPS/CDMA power amplifier module is a single band, two-stage power amplifier that uses the company's SiGe BiCMOS technology for maximum efficiency in wireless handset applications. The amplifier module integrates all input and output matching elements for compact board layout and reduced design time. Advanced on-chip bias circuitry ensures reliable performance in both operating modes. The power amplifier features a power down function that extends battery life. A configurable mode control allows the power amplifier to operate in high/low power CDMA or AMPS mode. On-chip SWR protection allows the power amplifier to pass industry-standard ruggedness test at full RF drive (+3 dBm input) with a load SWR of 10 at Vcc = 5 V DC.
IBM Microelectronics Division, Hopewell Junction, NY (914) 499-1900.
Circle No. 251
This multi-directional basestation antenna offers a high performance and cost saving solution to support the emerging mobile location-based services market. The antenna is designed to divide the space around it into three equal radial sectors, thereby minimizing the effects of multi-path and co-channel interference and provides higher accuracy, which can be exploited by position sensing technologies such as enhanced observed time difference, and angle of arrival. The LMU antenna represents the first commercial release of the company's smart antenna technology for the wireless industry. The antenna unit comprises three separate antennas, each providing an angular coverage of 120°. RF switching electronics are also incorporated into the unit allowing the unit to be operated via a single RF feed cable carrying the RF signal, control and power supply.
Antenova Ltd., Cambridge, UK +44 (0) 1223 810616.
Circle No. 235
Dual Circular Polarized Microstrip Antenna
The model 0118 dual circular polarized microstrip antenna works well in crowded WLAN applications. The low profile, lightweight, flat plate antenna operates over the 2.4 to 2.5 GHz frequency range with 16.0 dBic gain, 20 dB (min) of isolation and 2.0 dB axial ratio. The antenna offers < 1.5 SWR and power handling is 50 W.
Seavey Engineering Associates Inc., Pembroke, MA (781) 829-4740.
Circle No. 236
Transceiver Chip Set
The POLARISª TOTAL RADIO™ transceiver is a highly integrated, triple-band radio for GSM and GPRS applications with EDGE receive capabilities. The transceiver performs all major functions of the RF section, including both transmit and receive, and provides handset manufacturers the benefits of reduced component count, flexible baseband interfaces and lower cost of implementation. The POLARIS transceiver includes the first commercially available fractional N-based digital modulator, eliminating the I/Q modulator, phase detector, mixer and loop filters implemented in translational-loop transmitters. This direct digital modulator architecture enables outstanding spectral performance at a fraction of the power consumption of translational-loop transmitters. The transceiver uses very low intermediate frequency (VLIF) architecture, which enables the elimination of IF SAW filters, thereby contributing to the reduction in overall component count. The transceiver consists of the RF2708 SiGe BiCMOS receiver, RF6001 CMOS signal processor and RF3133 GaAs HBT power amplifier module. Size: 7 x 10 mm. Price: $8.50 (10,000).
RF Micro Devices Inc., Greensboro, NC (336) 664-1233.
Circle No. 222
Low Noise Amplifier
Integrated with RX/TX Duplexer The model DPL-LNA-2327-10-20 duplexer-LNA assembly is designed for MMDS applications, and integrates a high power cavity transmitter filter, receiver filter and low noise amplifier into a single compact module for performance improvement, space saving and cost reduction. The module offers greater than 20 dB gain with a noise figure of less than 3 dB for the receive channel and insertion loss of less than 1.5 dB for the transmit channel. Isolation between channels is greater than 60 dB while input and output return loss is less than 16 dB with SMA connectors. The unit operates from 12 V DC (100 mA). Price: starts at $300.
GHz Technologies Inc., St-Laurent, Quebec, Canada (514) 335-6090.
Circle No. 237
Quadband GSM/GPRS Transceiver
The DuettoDC quadband GSM/GPRS transceiver supports the 4 GSM bands 850/900/ 1800/1900 and is GPRS/EDGE compatible. This allows handset manufacturers to develop a flexible common RF platform for their worldwide GSM handset programs. Further, the DuettoDC is specifically designed to address handset cost reduction through minimizing the RF bill of materials (BOM), while overcoming the traditional problems of direct conversion. Incorporating a direct conversion receiver and direct modulator on transmit, the DuettoDC is designed for low RF BOM and supports GPRS class 12 and both Edge receive and transmit.
Sony Semiconductor & Devices Europe (SDE), Weybridge, UK +44 1932 817502.
Circle No. 239
This multiplier relies on the impulse generating characteristics of step recovery diodes to produce a comb spectrum at multiples of the input frequency. The desired harmonics are filtered to produce spectrally pure low phase noise output signals that are integer multiples of the input frequency. Typically an input amplifier is used to provide the correct operating level for the step recovery diode and optionally an output amplifier may be added to increase the output power for high order multiplications. The result is a compact, inexpensive, narrowband, spectrally pure signal generator based on low input frequency. Multiple frequency, switch selectable, single output port or multiple output ports are available as required. Input SWR is 1.5 to 2.0 (typ), output frequency range is 1 to 20 GHz, output power variation is ±1.5 dB (typ) and output power level is 0 to 15 dBm (typ).
Microphase Corp., Norwalk, CT (203) 866-8000.
Circle No. 221
The model FX-500 low jitter frequency translator is designed to simplify a wide variety of frequency translation and clock smoothing applications. It is a complete crystal-based frequency translator, providing superior stability and jitter performance. The product offers a flexible solution that reduces design time, increases circuit reliability and reduces board space. Output frequency ranges from 100.00 kHz to 77.76 MHz, with a supply voltage that can be either 3.3 or 5.0 V. The device is hermetically sealed in an industry standard 6 pin J-lead ceramic SMD package. The small size, versatile functionality and high performance of the FX-500 make it ideal for various applications in SONET/SDH/ATM, WDM, digital cross connect, DSLAM, DSLAR, access nodes, GSM and CDMA. Size: 14.0 x 9.0 x 4.5 mm.
Vectron International (VI), Norwalk, CT (888) 328-7661.
Circle No. 245
The model YH1310 OCXO features a small, Euro package and is available from 10 to 30 MHz. It is available in small quantities and custom configurations with typical phase noise at 100 Hz of -147 dBc/Hz for a 10 MHz output frequency. Stability is ±3 x 10-8 over a -20° to +70°C temperature range. The YH1310 is ideal for cellular basestation and a variety of other instrumentation applications.
Greenray Industries Inc., Mechanicsburg, PA (717) 766-0223.
Circle No. 240
Low Noise 900 to 920 MHz VCO
The model MW500-1241 voltage controlled oscillator (VCO) is designed for CATV and oth- er wireless applications. It has a low phase noise level of -112 dBc/Hz at 10 kHz offset and 132 dBc/Hz at 100 kHz. The VCO offers harmonics below -27 dBc, pushing is only 0.17 MHz/V, pulling only 0.9 MHz peak to peak and temperature drift is only -0.05 MHz/°C from -40° to +80°C. Supply voltage is +5 V at 22 mA, power output is +4 dBm ±0.3 dB with tuning voltage range of 0 to 10 V. Size: 0.50" x 0.50" x 0.15".
Micronetics, Hudson, NH (603) 579-0776.
Circle No. 241
Low Noise 900 to 1200 MHz VCO
The model V590ME01 low noise VCO is ideally suited for satellite modems. It will optimize the performance and quality of any satellite modem phase-locked loop (PLL) by delivering low phase noise performance in a compact low profile package, while covering a broad frequency range. This VCO generates frequencies between 900 and 1200 MHz within only 1 to 8 V DC of control voltage, making it well-suited for quick integration. The V590ME01 realizes spectral purity of -102 dBc/Hz (typ) at 10 kHz from the carrier. It strengthens a PLL with 1.1:1 linearity over its frequency range and extended commercial temperature range of -40° to +85°C while suppressing the second harmonic to better than -10 dBc. Price: $15.95.
Z-Communications Inc., San Diego, CA (858) 621-2700.
Circle No. 242
I/Q Vector Modulators
The 73 series of I/Q vector modulators is designed for today's more demanding system applications. These units offer 60 dB dynamic range of attenuation and 360° phase control in three broadbands, covering the 2 to 24 GHz frequency range. The series offers 12-bit I and Q digital control for high resolution and offers analog control with comparable RF performance. All models incorporate multiple bi-phase attenuator sections to provide in excess of 60 dB attenuation range at any frequency. They are capable of the full 360° phase range at any attenuation level. The series covers the frequency bands of 2 to 6 GHz, 6 to 18 GHz and 16 to 24 GHz. The units are fully temperature compensated, operating over the -54° to 100°C temperature range. Size: 4" x 3" x 1". Weight: less than 12 oz.
Herley Industries, Farmingdale, NY (631) 630-2000.
Circle No. 243
Lucix Corporation announces the availability of the first in a series of compact, high performance transceivers designed for use in point-to-point microwave radios used in LMDS, cellular backhaul and digital enterprise microwave links. Built using Lucix's best-in-class phase noise DRO's, the transceiver LO has a fundamental operating frequency of 11.75 GHz with an inherent phase noise of -95 dBc at a 10 kHz offset and -121.5 dBc at 100 kHz offset. This insures improved bit error rate performance for microwave radios employing 64 QAM and higher modulation schemes. The UDC-233233-FR2 contains both up and down converters designed to operate in the K and Ka bands (21-29 GHz) in a package of only 4 cubic inches (2.2 inches x 3.0 inches x 0.61 inches). The receiver features 30 dB (min) of gain with a typical noise figure of less than 3 dB at room temperature. The transmitter output power is +17 dBm. Transmitter-to-receiver isolation is typically better than 100 dB. The unit has been designed to operate off a single +12 Vdc supply, consuming only 14 W of power, and is equipped with SMA connectors for transmitted, received and IF signals. Other operating voltages, connectors, and frequencies of interest can be customer specified. Lucix manufacturers transceivers, up/down converters and microwave oscillators with operating frequencies from 4 to 50 GHz.
Lucix Corp., Camarillo, CA (805) 987-6645.
Circle No. 238
Wideband Radio Channel Simulator
The PROPSim C2 digital real-time hardware radio channel simulator can be used for testing existing and future mobile communications and WLAN systems. It fully complies with 3GPP channel models and provides a transition from 2G to 3G testing. PROPSim C2 accurately reproduces the real world propagation phenomena such as multi-path fading, sliding delays, attenuation, path loss, Doppler shift, shadowing and noise. It enables systematic, repeatable testing of wireless systems in realistic, time variant conditions in laboratory. The simulator offers a new, fully integrated design for maximum ease of use, flexibility and simplicity of test setup. The user interface is based on an integrated PC, touch screen and a keyboard mounted in the front panel, making no external accessories necessary.
Elektrobit Ltd., Oulu, Finland +358 40 344 2017.
Circle No. 246
RF Lifetest System
This low cost RF burn-in lifetest system with conductive heating technology specifically de- signed for testing lower powered devices and subsystems. The system for lower powered devices uses a scaled down version of the company's patented conductive thermal control technology, BakPak," which is used in the high power control systems. The new system is ideal for the lifetest of frequency devices (up to 20 GHz) that dissipate around 10 W each. Price: $250,000.
ThetaDelta Technologies Inc., Lawrence, MA (978) 689-0136.
Circle No. 248
Direct Frequency Synthesizer
The PTS 1600 direct synthesizer combines direct analog and direct digital technologies. It has good close-in phase noise as well as the ability to switch rapidly from one frequency to another. High speed remote control is provided through the standard TTL-level parallel interface port, but for easy integration into testing environments a GPIB interface is also available. By employing dedicated control hardware, the GPIB interface still provides 50 ms or better frequency switching. The PTS 1600 features a keyboard and LCD display, with resolution of 1 Hz. Price: $10,000. Delivery: 12 weeks (ARO).
Programmed Test Sources Inc. (PTS), Littleton, MA (978) 486-3008.
Circle No. 244
Communications Service Monitor
The model 2944 communications service monitor is designed for testing conventional AM and FM radio systems to 1.05 GHz such as maintenance, repair and field-testing of AM/FM analog receivers, transmitters and repeaters. Versatile, rugged and lightweight, the 2944 combines a number of instruments into one convenient box, allowing users to make exacting measurements whether they are in the workshop or in the field. The 2944 features as standard: a full-span spectrum analyzer, narrowband and broadband power meters, audio analysis tools, a full-featured signal generator and a digital storage oscilloscope. Weight: 25 lb. Price: $9995. Delivery: eight to 12 weeks.
IFR Systems Inc., Wichita, KS (800) 835-2352 or (316) 522-4981.
Circle No. 247
Get access to premium content and e-newsletters by registering on the web site. You can also subscribe to Microwave Journal magazine.