- Buyers Guide
The model AA107-310 and AA109-310 GaAs IC five-big digital attenuators feature serial to parallel silicon drivers as well as low loss, high attenuator accuracy and high IP3. The attenuators are designed for use in basestations, wireless data and wireless local loop applications. The AA107-310 has LSB of 0.5 dB, which allows for gain control up to 15.5 dB. As a result, it allows for tight power control. This attenuator covers DC to 2.0 GHz and can be used in IF circuits. The AA109-310, designed for RF frequencies, covers from 0.5 to 2.5 GHz. It has 1.0 dB LSB, for a total attenuation of 31 dB. The performance of the attenuators allow for control of a large power range. Size: 5 x 5 mm. Price: $8.35.
Alpha Industries Inc., Haverhill, MA (978) 247-7700.
Circle No. 215
Surface-mount 90° Hybrid Coupler
The part number 1M703 Xinger® brand surface-mount 90° hybrid coupler is designed for balanced amplifiers and signal distribution, and push-pull amplifiers (3.3 to 3.7 GHz). The new micropackaged unit supports ISM and LMDS applications. The coupler offers 23 dB (min) isolation, 0.20 dB (max) insertion loss, an SWR of 1.19, amplitude balance of ±0.20 dB (max) and 4° (max) phase balance. The components are also compatible with common substrates like FR4, G-10 and polyimide. Size: 0.400" x 0.200" x 0.072".
Anaren Microwave Inc., East Syracuse, NY (315) 432-8909.
Circle No. 216
MMCX PC Board Receptacles
These microminiature PC board receptacles offer design engineers savings and design ver- satility. When mounted to a PC board, the mating end is flush with the edge of the board, allowing boards to be connected in close proximity. The snap-on mating interface of MMCX connectors provides quick, secure connection of PC boards and other components. The connector pairs can also be rotated after mating for reposition of connected components, making them ideal for use in PCMCIA wireless antenna applications. These MMCX receptacles have gold-plated bodies for superior solderability and are available either individually packaged or preloaded into industry-standard tape-and-reel packaging.
Applied Engineering Products (AEP), New Haven, CT (203) 776-2813.
Circle No. 218
30 W Wilkinson Divider/Combiner
The model 30-BD-FFA-2 two-way Wilkinson divider/combiner has a frequency range of 800 MHz to 3.5 GHz and power rating is 30 W into a SWR of 1.15, 10 W into 1.50 and 1 W into an open. Insertion loss is < 0.6 dB, isolation is > 22 dB (min (J2 to J3)), input SWR is 1.2 (max), output SWR is 1.15 (max) and matching is < 3° phase (typical 0.5°). The connectors are SMA female.
Bird Component Products (BCP), Largo, FL (727) 547-8826.
Circle No. 219
Broadband Filter Bank
This bank of three filters utilizes a broadband filter synthesis technique to realize highly selective filtering for the 1.7 GHz IF band. Typical passbands range from 25 to 40 percent, bandpass flatness is less than 1.0 dB and 2.0 ns. Passband SWR is better than 1.5. Skirt selectivity is greater than 35 dBc at 1.06 times the passband edge. Inputs/outputs are 0.017" diameter pins. Size for each of the three filters is 1.75" x 0.50" x 0.25".
Bree Engineering, San Marcos, CA (760) 510-4950.
Circle No. 220
High Power Remote Resistive Termination
The model RU324 high power remote resistive termination operates over the 10 MHz to 2 GHz bandwidth. The design has successfully integrated into the company's products where thermal management is an issue. The thermal interface can be attached via captive screw, through holes or tapped holes. The remote termination is also available as a separate component with a press-in solder-able board mount interface or with many RF connector options. This termination features 100 W CW power rating and an SWR of 1.15 (typ).
Channel Microwave Corp., Camarillo, CA (805) 482-7280.
Circle No. 221
Sub-volt DC/DC Converters
These sub-volt DC/DC converters are offered in quarter-brick size and provide high efficiency single stage conversion directly from a 48 V bus to sub-volt levels. These 30 A converters eliminate the cost, board space and efficiency penalty that result from the necessity of a second power supply for secondary voltage conversion from 3.3 or 5.5 to 1 V or less.
di/dt Inc., Carlsbad, CA (866) 969-3438.
Circle No. 222
The model HMC365 divide-by-4 static prescaler features InGaP GaAs HBT technology and operates up to 13 GHz. It features a wide operating input window, a selectable output power bias option and a low additive SSB phase noise of -151 dBc/Hz at 100 kHz offset. This device operates from a single 5.0 V DC supply and is ideal for microwave radio, fiber optic and VSAT low phase noise PLL circuitry applications.
Hittite Microwave Corp., Chelmsford, MA (978) 250-3343.
Circle No. 224
The model AF-TNC-6-5 fixed attenuator features a 5 W average power rating and standard TNC connectors. It is available from stock in 3, 6, 10 and 20 dB coupling values. Price: $49.
Dept. 26, Narda, Hauppauge, NY (516) 231-1700.
Circle No. 225
Dual Band Antenna Combiner
This dual band combiner covers cellular-PCS and GSM900-1800 for dual band antennas. The unit is completely sealed for outdoor top of the tower use, and covers the frequency range of 800 to 1000 and 1700 to 2000 MHz. The insertion loss is 0.3 dB (max) and isolation is 45 dB (min). Two standard +43 dBm carriers produce < -140 dBc of IMD. Passband return loss is 20 dB (min) with power handling of 500 W CW. The standard connectors supplied are 7/16 DIN female at all ports. Operating temperature is from -40 to +85° C. Size: 1.0" x 5.2" x 7.4".
Reactel Inc., Gaithersburg, MD (301) 519-3660.
Circle No. 226
High Frequency Power Dividers
The D-10265 series of high frequency power dividers is comprised of compact microstrip units covering the 10 to 26.5 GHz frequency range. These units provide low SWR at all ports and high isolation between all output ports. Phase and amplitude tracking of all outputs are excellent due to the symmetrical designs. Combinations of two-way, multi-step transformers in one package forms the basic building blocks in these Wilkinson type power dividers. The power dividers feature 50 W impedance and the connectors are SMA female.
RLC Electronics Inc., Mt. Kisco, NY (914) 241-1334.
Circle No. 227
SMP Coaxial Connector Series
This SMP coaxial connector line features a snap-in vibration proof connection, suitable for high shock mobile applications and space level connector requirements of extreme random vibration, thermal shock and outgassing environments. Frequency range is DC to 40 GHz with low SWR. The extremely small package size allows for high density board-to-board applications. Blind mate SMP connectors are available in smooth bore for maximum float of mating (0.015" radial axial misalignment between mating planes). The full and limited detent SMP connections are suitable for mobile applications, with extreme shock and vibration requirements. The connectors are ideal for high density packaging and interconnecting low power microwave modules, drawers and racks.
Sabritec, Irvine, CA (949) 250-1244.
Circle No. 228
Cable Assembly Series
The LAI Series of interconnect assemblies is designed for telecom and mil/aero applications up to 18 GHz, where low loss and relatively long length interconnects are required. Constructed of double shielded cable with a standard FEP Teflonª or optional polyurethane jacket, the series delivers low loss performance of 20 dB/100 ft at 18 GHz, along with phase and temperature stability of 15 ppm/°C. The products double shielded construction offers shielding effectiveness of greater than -100 dB at 18 GHz. The assemblies feature precision stainless steel connector types including N, extended TNC and SMA in male, 90° and bulkhead versions.
Semflex, Mesa, AZ (800) 778-4401.
Circle No. 229 .
The model CBJE130 edge-mount circuit board F-connector features a unique design with a center pin in-line with the plane of the board for superior signal integrity. This side launch design approach also features a much lower profile than standard right angle jacks for reduced board space requirements. The CBJE130 was designed for applications such as broadcast and cable box products, and is part of the company's new high frequency PCB coaxial connector series. Price: $2.14 (1,000,000).
Trompeter Electronics, Westlake Village, CA (800) 982-2629.
Circle No. 230
RF Coaxial Adapter Kits
These user-customizable type-N adapter kits are designed for mating calibration equipment with virtually any other series of RF coaxial connector. The kits solve the problem of mating a test instrument, which has a type-N connector to virtually any device with a different series of connector. Featuring a type-N interface on one side, users can create their own adapter kits by selecting from 4 to 10 connectors with C, LC, SC, HN, BNC, TNC, QDS, SMA or 7/16 on the other side. Each adapter in the kit conforms to MIL-C-39012, MIL-STD-348 and DIN 47223 specifications for all mating dimensions. Constructed from silver plated brass bodies, beryllium-copper contacts, and Teflon® insulators, they can include any gender combination and are supplied in a handy wooden storage box. Price: $195.
Tru-Connector Corp., Peabody, MA (800) 262-9878.
Circle No. 231
Broadband Directional Detectors
This line of broadband directional detectors begins at 0.5 GHz and uses directional cou- plers and microwave zero bias Schottky detectors. Model 201040013 (13 dB nominal coupling) 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) 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 from 20 to 40 GHz. Insertion loss, including coupling, is 1.1 dB (max) from 1 to 20 GHz and 1.8 dB from 20 to 40 GHz. Low level sensitivity is 20 mV/mW (min). Model is available with input connectors of 2.4 mm or K female. Other narrower frequency bands are also available. Delivery: stock to three weeks.
Krytar, Sunnyvale, CA (407) 734-3017.
Circle No. 241
W-CDMA Power Amplifier
The model BTC-212-45-15 W-CDMA power amplifier is designed for base and repeater station applications. The unit operates from 2110 to 2170 MHz and has a gain of 45 dB with a flatness of ±0.5 dB, a noise figure of 8 dB and includes an output isolator for protection. It is IS-97 compliant with a 15 W average output signal while drawing 6 A (max) at 28 V. Over power, high temperature and SWR alarms are included along with forward power detection and an on/off input pin. This unit can be customized to meet user's frequency and gain requirements. Size: 4.00" x 8.00" x 0.95".
Broadband Wireless Technologies, Sparks, NV (775) 345-0411.
Circle No. 232
4 W, Ka-band Amplifier
The model PA 2930-3615 compact amplifier is ideal for emerging broadband satellite uplink applications. Its leading-edge MMIC-based design provides good linearity and close to 1 GHz of bandwidth. This 4 W, Ka-band amplifier can be used as a stand-alone component of a transmitter or transceiver or as a driver for a TWT or klystron-based high power amplifier. The amplifier operates over the 29.5 to 30.0 GHz range. Size: 2.00" x 1.50" x 0.75".
ITS Electronics Inc., Concord, Ontario, Canada (905) 660-0405.
Circle No. 233
20 W RF Power Amplifier
The model A037 high performance 20 W RF power amplifier covers the 225 to 600 MHz frequency range with 28 dB of gain. Features include automatic current limiting, forced-air cooling, current meter, over-current and thermal protection. The amplifier is also available as a DC module in a small, high efficiency package. Connectors are N female. Size: 19" ´ 18" ´ 7". Weight: 35 lb.
LCF Enterprises, Post Falls, ID (208) 457-0292.
Circle No. 234
50 W High Power Amplifier
The model 5101 lightweight high power solid-state amplifier operates from 0.8 to 2.5 GHz with a minimum linear power of 40 W across 800 to 2500 MHz. Applications include multi-band PIM testing, device testing and TWTA replacement.
Ophir RF, Los Angeles, CA (310) 306-5556.
Circle No. 235
5.8 GHz Power Amplifier
The model RFS1003 power amplifier for the broadband wireless access marketplace is a high power, high performance GaAs MESFET IC designed for use in transmit applications in the 5.1 to 5.9 GHz frequency band. With a P1dB of 29 dBm, the device is ideal as a final stage for fixed wireless applications requiring high transmit linearity. The input of the PA is matched to 50 W and the output can be easily matched for optimum linearity and power performance at the desired frequency of operation between 5.1 and 5.9 GHz.
RF Solutions Inc., Atlanta, GA (404) 876-7707.
Circle No. 236
870 MHz Wideband High Linearity Hybrid Line Amplifiers
This family of amplifiers was designed specifically for the demanding CATV market. It uses GaAs MMIC technology to achieve better reliability, higher overall gain, flatter frequency response, better return loss, lower noise figures and lower power consumption. Some of the advantages offered over standard hybrids are 12 and 24 V products to choose from, minimum thermal resistance and maximum heat conductivity using 99.9 percent copper-based heat sink with gold/silver plating, use of metal cap to ground, which makes better EMI, ESB, RF isolation overall, and an internal over-voltage suppressor. All products in the family deliver an operating bandwidth from 45 to 864 MHz and are specified for 79-, 110- and 135-channel performance.
RFHIC, Anyang, Kyonggi, Korea +82 31 40 5588.
Circle No. 237
3.4 to 3.6 GHz, 8 W SSPA
The model SM3436-38 solid-state power amplifier operates from 3.4 to 3.6 GHz and has a P1dB of +39 dBm (typ) and an OIP3 of +50 dBm (typ). Linear gain is 45 dB ±0.5 dB. This small GaAs FET module operates from +12 V and consumes only 3.4 A. Standard features include > 20 dB of gain control, over/reverse voltage protection, logic on/off and thermal protection with auto reset. Available options include forward power detection and output harmonic filtering. Size: 6.5" x 3.7" x 2.0". Delivery: stock to four weeks (ARO).
Stealth Microwave, a division of SSB Technologies Inc., Trenton, NJ (609) 528-8586.
Circle No. 238
Antenna Measurement System
The MI-3600 family of low cost antenna measurement systems is ideally suited for the PCS and wireless industry. The products are designed to meet the needs of the wireless and PCS antenna markets by providing fast, cost-effective antenna measurement capability from 500 MHz to 6 GHz in outdoor or indoor measurement configurations. The line offers 10 cost-effective antenna measurement systems for dual axis configurations. Features include accurate automated antenna pattern measurements, extensive built-in analysis software to simplify pattern evaluation and network connections to download data to other compatible analysis programs.
MI Technologies, Duluth, GA (800) 848-7921.
Circle No. 239
Six-foot Diameter X-band Weather Radar Antenna
The model 0072-800 six-foot diameter X-band weather radar antenna has a dual linearly polarized scalar feed at the focus of the reflector. The feed is manufactured to enable simultaneous orthogonal operation. The antenna operates at 9.41 GHz ±25 MHz, with an SWR of 1.3.
Seavey Engineering Associates Inc., Pembroke, MA (781) 829-4740.
Circle No. 240
Statistical Software Package
Design-Ease 6.0 software for design of experiments (DOE) makes it possible for beginning experimenters to improve their product or process thorough the use of experimental design tools. By revealing the vital factors in processes and the interactions between them, this entry-level statistical software package helps users achieve breakthroughs that often lead to savings as well as improvements in quality and productivity. As a dedicated DOE software package, Design-Ease offers features for ease of use and functionality that are not available in general statistical packages. It presents an intuitive interface, a greatly expanded help system, a wide variety of designs, the flexibility to modify designs, graphics to simplify interpretation and useful evaluation capabilities such as annotated ANOVA reports.
Stat-Ease Inc., Minneapolis, MN (612) 378-9449.
Circle No. 243
Voltage Tunable Oscillator
This voltage tunable oscillator (VTO) features 600 MHz tunability, fast tuning, low power consumption and software control. The oscillator operates from 10.55 to 11.15 GHz with 0 dBm output power. The VTO also offers low phase noise and fundamental frequency operation. Typical applications include microwave radios.
Paratek Microwave Inc., Columbia, MD (443) 259-0140.
Circle No. 245
The VC-800 VCXO is a quartz stabilized square wave generator with a CMOS output and is tested at CMOS and TTL logic levels. The device is hermetically sealed in a ceramic leadless chip carrier with six contact pads. Selected frequencies between 1.544 and 77.760 MHz are available with a 2.2 or 5.0 supply voltage. Phase jitter performance is better than < 6 ps rms for frequencies greater than 12 MHz. The unit's small size, standard package and high performance make it ideal for communication applications including xDSL customer premise equipment, PCMCIA cards, handsets, digital video and ATM/SONET/SDH applications. Size: 3.2 x 5.0 x 2.0 mm. Delivery: six to eights weeks (ARO).
Vectron International, Norwalk, CT (888) 328-7661.
Circle No. 247
Low Noise VCO
The model V585ME24 generates frequencies that span from 1568 to 1971 MHz within 1 to 20 V DC of tuning. This device will further com- pliment any phase lock loop and exhibits a superior SSB phase noise performance of a -102 dBc/Hz at 10 kHz offset (typ) from the carrier. Delivering to the end-user 6.5 ±1.5 dBm into a 50 W, the V585ME24 requires a nominal 10 V supply while drawing merely 16 mA (typ). Subsequently, this particular VCO exhibits a second harmonic suppression of -9 dBc and delivers unparalleled phase noise performance even with its broad bandwidth while operating over the extended commercial temperature range of 0° to 75°C and covers the frequency band with an average tuning gain of 33 MHz/V.
Z-Communications Inc., San Diego, CA (858) 621-2700.
Circle No. 248
The PSA-45 series of spectrum analyzers features a new design, which incorporates a high contrast LCD display and battery power in a small, light and easy-to-use package. Frequency coverage is 950 to 1450 MHz (L-band) and selectable LNB power (+12 V/off/+18 V) is provided through the input connector. The LCD is backlit and can be easily read in conditions ranging from darkness to full sun. There are two models in the series, the PSA-45A and PSA-45B. The former has been designed with the inexperienced technician in mind, with fixed span (950 to 1450 MHz). Connect to TH LNB cable, turn on LNB power and measure. The power switch and LNB power selector pulse "soft keys" for backlight and contrast adjustment are the only controls. The PSA-45B adds adjustable span plus center frequency tuning, providing additional resolution and information for the more experience technician. Size: both models 9.5" x 4.5" x 9.5". Weight: both models 8 lb.
Avcom-Ramsey Technologies, Richmond, VA (804) 794-2500.
Circle No. 250
RF Power Meter
The model 7100 RF power meter answers the need for a lightweight, compact, cost-effective instrument for average-power RF measurements. The power meter is a terminating digital wattmeter with an input impedance of 50 W. Power and frequency ranges of 2 to 500 mW and 10 to 2000 MHz make the model 7100 a perfect choice of numerous low power RF test and troubleshooting applications in product development, repair, field service and manufacturing. The ease-of-use design of the 7100 allows users to receive measurements quickly without external sensors and cabling. The large 3-1/2 digit liquid crystal display (LCD) provides easy-to-view readings in digital format.
TEGAM, Geneva, OH (440) 466-6100.
Circle No. 251
These sweep generators are powerful general purpose sources for swept microwave measurements, wideband CW signal generation and auto- matic testing. Frequency coverage is available from 33 to 170 GHz in four models. Minimum output power is +10 dBm up to 75 GHz, somewhat less at higher bands. They incorporate the efficiency of microprocessor control with state-of-the-art BWO oscillators to produce a high performance sweep generator system ideally suited for either manual or automatic measurements.
Spacek Labs, Santa Barbara, CA (805) 564-4404.
Circle No. 246