- Buyers Guide
The model SWN-218-2DT options 0518, HPR2W is a high power (2 W) absorptive SP2T switch, that works from 500 MHz to 18 GHz (10 MHz to 18 GHz optional). Insertion loss is < 0.85 dB at 500 MHz and < 2.35 dB at 18 GHz. Isolation is > 95 dB at 500 MHz and > 80 dB at 18 GHz. Amplitude is ±0.5 dB and phase is ±5° between ports from 500 MHz to 18 GHz; SWR is 2. Speed is < 65 ns delay on and < 60 ns delay off. Supply is +5 V at 70 mA and -15 V at 62.5 mA. Size: 1.2" x 1.0" x 0.5". Weight: < 1.2 ounces typical
American Microwave Corp., Frederick, MD (301) 662-4700. Circle No. 216 /p>
The CCDP-432-1 PCS duplexer has a passband insertion loss of less than 0.8 dB and Tx-Rx isolation of 85 dB minimum. This unit is designed for base station deployment where high power handling and low IM distortion are critical to BTS performance. Power handling is up to 800 W CW and 20 carriers at 40 W each. Size: 7.0" x 9.0" x 2.2". Delivery: stock to three weeks.
ClearComm Technologies LLC, Salisbury, MD (410) 860-0500. Circle No. 217
PIN Diode Attenuator
The model A0P-42N-0MD is a 3.0 to 3.5 GHz PIN diode attenuator that is capable of a 15 dB dynamic range in monotonic 0.25 dB steps within 10 µs. The attenuator can handle an input RF power of 5 W. Accuracy is ±0.3 dB, SWR is 1.5 and the insertion loss is 1.3 dB. This custom attenuator is designed to meet the form, fit and function of OEM specifications that are no longer available.
G.T. Microwave Inc., Randolph, NJ (973) 361-5700. Circle No. 218
The QMA coaxial connector is designed to replace SMA connectors. The QMA interface allows operation through 18 GHz as it is based on the SMA line dimensions. The QMA connector features best transmission characteristics in the range of DC to 6 GHz. Suitable applications include radio base stations and other radio equipment, especially where high density connector population is required. The QMA interface features a new snap-lock mechanism which makes it fast and easy to mate and de-mate, yet requiring a low mating force. The interface retention force is 60 N.
HUBER + SUHNER AG, Herisau, Switzerland +41 (0)71 353 41 11. Circle No. 220
Multi-function Assembly-tracking Filter
This frequency agile filter is controlled using an 8-bit parallel interface, which allows 251 tune words for frequency control. A power saving mode is initiated by sending a 255 command to the filter, which turns off all the diodes and minimizes current consumption by the digital components. Given the 251 tune words (250 steps), this filter will have a tuning resolution of 250 kHz, equally spaced across the tuning range.
K&L Microwave Inc., Salisbury, MD (410) 749-2424. Circle No. 222
High Dynamic Range Mixers
This line of high dynamic range monolithic mixers achieves up to +36 dBm input IP3 for cellular/PCS/3G infrastructure applications. The HMC399MS8 covers 700 to 1000 MHz RF and 60 to 250 MHz IF frequencies for GSM/CDMA-based cellular transmit or receive frequency plans. Good input IP3 performance of +35 dBm is provided. The HMC400MS8 covers 1.7 to 2.2 GHz RF and 50 to 300 MHz IF frequencies to satisfy many UMTS/PCS transmit or receive frequency plans configured for low side LO. The input IP3 performance of up to +36 dBm for down conversion and +31 dBm for up conversion, coupled with the high P1dB of the HMC400MS8, rivals traditional hybrid mixers while offering a small standard IC footprint and no DC bias. With input IP3 performance of +31 dBm for down conversion and +27 dBm for up conversion over 1.8 to 2.2 GHz, the HMC402MS8 is a good choice for high side LO GSM/CDMA-based UMTS/3G or PCS applications.
Hittite Microwave Corp., Chelmsford, MA (978) 250-3343. Circle No. 219
The model 50SA-086 is a switch assembly. This GPIB controlled switching system operates from 7 to 8.5 GHz. Its modular design allows the user to add capacity through the installation of additional switches. In addition, its configuration can be altered to satisfy a multitude of automated switching applications.
JFW Industries Inc., Indianapolis, IN (317) 887-1340. Circle No. 221
The new "Q" series of screened mixers includes a wide variety of broadband and ultra-broadband double- and triple-balanced catalog mixer models. This product line is primarily intended for military applications where additional screening is required. The models in this series are available to ship from stock with either Tier 1 or Tier 2 environmental and mechanical screening, based on MIL-DTL-28837.
Marki Microwave, Morgan Hill, CA (408) 778-4200. Circle No. 223
The CK-10D is a directional coupler series with 7-16 mm DIN connectors. The series provides ±0.5 dB flat coverage from 700 to 2700 MHz, thus covering all the cellular wireless frequency bands used for in-building applications. Presently available in 6 and 10 dB coupling values, the CK-10D directional coupler series will soon be expanded to include 15, 20 and 30 dB values. This bandwidth has been made possible through the use of tapered design techniques, which can carry powers up to 200 W. Such units are most commonly used to unequally split wireless carriers to a secondary antenna feed or distribution cable, such as might be required for an in-building application.
Microlab/FXR, Livingston, NJ (973) 992-7700. Circle No. 224
SP2T Reflective Switch
The model S238ADMO-LC is a SP2T reflective switch and has a wide frequency range of 2 to 18 GHz, high isolation of 50 dB minimum and a low insertion loss of 3.0 dB maximum. Total switching speed is < 300 ns.
MITEQ Inc., Hauppauge, NY (631) 436-7400. Circle No. 226
Thin Film Resistors
These Nichrome thin film resistors offer proven stability, low noise and good TCR. By utilizing Nichrome as the resistive layer these devices are capable of achieving TCR characteristics of < 25 ppm. They are available in a large selection of outline types, resistance values and tolerances. The Nichrome thin film resistors are ideally suited for use in hybrid assembly applications where low noise, good power dissipation and good TCR are critical design factors. Their small size makes them good for today's ultra-small packaging requirements. They are available on a wide range of substrate materials including silicon, ceramic, quartz and aluminum nitride. Standard tolerances are ±1 percent.
MicroMetrics, Londonderry, NH (603) 641-3800. Circle No. 225
High Power Resistors
These high power chip resistors are compact, lightweight, high power designs which are ideal for high current pulse applications such as power supplies, and are suitable as microwave terminations. The designs feature two termination styles: (1) ground isolation style features solderable solid bottom pad and two solderable top surface terminal; (2) ground connect style features a single wraparound connecting the resistor to a solderable bottom pad, with a single top surface pad for the other connection. The high power resistors are available in values from 10 and 1 k . With available tolerances of ±0.1 percent and a temperature coefficient of resistance to 50 ppm. A variety of case sizes are available from 1206 (0.125" x 0.65") to 3838 (0.375" x 0.375"). Price: $1.00. Delivery: stock to eight weeks ARO.
State of the Art Inc., State College, PA (800) 458-3401. Circle No. 228
Precision Step Attenuator
The AT-600 series precision step attenuators are designed to provide an accurate attenuation over the range of DC to 1 MHz. Selected precision chip resistors and surface-mount construction provide accuracy, long life and repeatability. Units are provided with knobs and are calibrated for nominal attenuation steps.
RLC Electronics Inc., Mt. Kisco, NY (914) 241-1334. Circle No. 227
Coaxial Test Adapter
The model Mil-C-39012 is a precision RF coaxial adapter for reliably connecting test equipment such as vector network analyzers (VNA). These adapters feature a 7 mm interface on one end and an SMA, type N, TNC, HN and SC on the other, and operate from DC to 18 GHz with a SWR of 1.10 maximum, depending upon the series. Providing a highly reliable connection between test equipment and MIL-C-39012 interfaces, these RF coaxial adapters are designed to assure optimum electrical performance. Featuring a six slot center contact on the 7 mm end, precision adapters have a gold-plated stainless steel body and a passivated stainless steel coupling nut, with a gold-plated brass center contact and Noryl insulator. These 50 RF coaxial adapters operate over a -55° to +85°C temperature range. Price: $105.00.
TRU Corp., Peabody, MA (800) 262-9878. Circle No. 230
Surface-mount Trimmer Capacitor
The McQ 512 series is a miniature all-ceramic surface-mount trimmer capacitor. The McQ 512 trimmer is good for an endless variety of applications that require miniaturized capacitance trimming, including avionics apparatus, communications equipment, oscilloscopes, crystal oscillators and crystal filters. The dynamically designed McQ 512 trimmer offers strong characteristics, including high Q, tape and reel feed, solder pad mount and small footprint.
Tusonix, Tucson, AZ (520) 744-0400. Circle No. 231
Spaceflight Cable Assemblies
These lightweight 0.190" spaceflight microwave cable assemblies are designed to meet the rigorous requirements of the space environment and the cables are qualified to operate up to 18 GHz over a temperature range of -55° to +125°C. These assemblies offer low insertion loss which is accomplished through the cable design that exploits the low dielectric constant, low loss tangent, and the consistency of the ePTFE dielectric. The cables are engineered to withstand severe levels of radiation found in many satellite applications. Their proven construction uses radiation resistant materials, including TEFZEL® jacket material, to ensure that the cables remain structurally sound in radiation environments up to 100 Mrad.
W.L. Gore & Associates Inc., Elkton, MD (800) 445-4673. Circle No. 233
This series of thin-film single-value chip resistors features high frequency response and low shunt capacitance for good performance in hybrid assemblies and microwave and RF circuits. The electro-films microwave resistor series features a strip-line design that enables the design of higher performance end products by providing a solution specifically optimized for microwave and RF requirements. Typical applications for devices include amplifiers, oscillators, attenuators, couplers and filters. Devices in the series feature a microwave resistance range of 20 to 1 k and an overall resistance range to 20 k .
Vishay Intertechnology Inc., Malvern, PA (610) 644-1300. Circle No. 232
High Power Amplifier
This ultra wideband high power amplifier provides amplification from 20 to 500 MHz in a single band. The HPA supports the following modulation formats: AM, FM, FSK, SSB and CW. It features a 10 dB programmable output control in 1 dB steps. Flatness is maintained within 0.5 dB over the entire frequency band and temperature range. Harmonics are maintained at -60 dBc across the full band through the use of low pass filters. Switching between the filter bands is accomplished within 50 µs, and is achieved through the use of solid-state PIN diode switches.
Herley Industries Inc., Farmingdale, NY (631) 630-2400. Circle No. 235
MMIC Power Amplifier
The XP1005 is a gallium arsenide monolithic microwave integrated circuit (MMIC) four-stage power amplifier, which functions as a good saturated output stage. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (PHEMT) device model technology, this power amplifier covers the 35 to 43 GHz frequency band, and includes Lange couplers to achieve good output return loss. The MMIC device has a typical small signal gain of 26 dB, with a 24 dBm typical P1dB compression point. This power amplifier is well suited for wireless communications applications, such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), SATCOM and VSAT applications. The XP1005 is designed for PDH radios requiring high gain, good output power and the ability to control saturated output power.
Mimix Broadband Inc., Houston, TX (281) 988-4600. Circle No. 236
Low Noise Amplifier
The model NBL00416 is a 3 to 8 GHz 1 W low noise amplifier for use in fixed satellite service, defense radar and communications as well as cable TV and broadcast auxiliary. The unit has gain of 35 dB maximum, noise figure of 2.5 dB, with IP3 of 39 dBm. It operates at -50° to +90°C with DC supply voltage of +12 to +18 V. Custom designs and hermetic sealing are available.
Nextec Microwave and RF Inc., Santa Clara, CA (408) 727-1189. Circle No. 255
IF Limiting Amplifier
This series of UMCPL constant phase IF limiting amplifiers is designed for applications where phase deviations must be minimized over a wide dynamic range. This range incorporates multiple limiting stages, output filters, buffered output stages and temperature compensation to minimize variations of phase and limited output level. Typical phase shift of 2° over the dynamic range and output level variation of ±1 dB over the temperature range is achieved. The UMCPL range of limiting amplifiers is constructed in lightweight alloy housings, which are designed to withstand harsh mechanical environments. The standard range operates over a case temperature range of -40° to +85°C but can be specified for other temperature ranges. The standard supply voltages are -12 or -15 V with options available for positive supply rails.
Pascall Electronics, Isle of Wight, UK +44 1983 817412. Circle No. 238
Traveling Wave Tube Amplifiers
This family of broadband traveling wave tube amplifiers (TWTA) delivers significantly more power than standard 200 W units. Model 300T2G8 (2.5 to 7.5 GHz) provides a conservative 300 W minimum at the amplifier output connector. Model 250T1G3 (1 to 2.5 GHz) and 250T8G18 (7.5 to 18 GHz) each deliver 250 W. These powerful TWT amplifiers provide readily available RF power for a wide variety of applications in test and measurement, industrial and university research and development, and service applications. All three models are self-contained, forced air-cooled broadband TWTAs and are ideal for applications that require instantaneous bandwidth and high gain.
Amplifier Research, Souderton, PA (215) 723-8181. Circle No. 234
Detection Log Video Amplifier
The model SDLVA-07103-70-LA3 is a 750 MHz to 1.25 GHz frequency range (0.3 to 2.0 GHz units available) successive detection log video amplifier (SDLVA). This SDLVA provides up to 80 dB of dynamic range in 25 ns speed and with low AM/PM conversion and a nominal 20 MHz video bandwidth. The log linearity is ±1.5 dB over the dynamic range of -65 to +5 dBm with an SWR of 2.0 and a limited IF output of 14 dBm. Size: 1.30" x0.95" x 0.27".
Planar Monolithics Industries, Frederick, MD (301) 631-1579. Circle No. 239
Power Amplifier Module
The RMPA1959-108 power amplifier module (PAM) is designed for CDMA and CDMA2000-1X personal communications system applications. The two-stage PAM is internally matched to 50 to minimize the use of external components and features a low power mode to reduce standby current and DC power consumption during peak phone usage. High power-added efficiency and good linearity are achieved using the company's InGaP heterojunction bipolar transistor process. Size: 4.0 x 4.0 x 1.5 mm.
Raytheon RF Components, Andover, MA (978) 684-8900. Circle No. 256
800 MHz to 2.5 GHz Amplifier
The model SM0825-40 is a class A amplifier operating from 800 MHz to 2.5 GHz. With 1.7 GHz of bandwidth, this small amplifier can be used in most wireless applications. Output power (P1dB) is +40 dBm minimum with a +50 dBm OIP3. Features include a single DC supply of +12 V, 39 dB of linear gain, over/reverse voltage protection and thermal protection with auto reset. Options available are forward power detection and logic on/off control. The unit comes with six thru-holes for fastening to a cold plate, and can be provided mounted on a heatsink. Size: 6.7" x 4.0" x 0.8".
Stealth Microwave, Trenton, NJ (609) 538-8586. Circle No. 240
These lightweight blade antennas are for airborne communication, navigation and identification applications. These antennas provide radiation patterns and gain similar to a quarter-wavelength monopole over a conducting ground plane. As an example, the UHF antenna has a SWR of less than 2 over the operational bandwidth of 580 to 900 MHz. This antenna is approximately 4" tall, has an installation footprint of 4 square inches, and includes a conductive base plate and integral radome, and only weighs 3.5 ounces. This blade antenna is particularly well suited to meet the extremely lightweight and aggressive cost targets of UAV platforms, without compromising electrical performance. These antennas can be easily customized to specific frequency and interface requirements.
Nurad Technologies Inc., Baltimore, MD (410) 542-1700. Circle No. 243
The model T390-317 is a biconical antenna that operates from 39 to 42 GHz and provides omnidirectional circumferencial coverage with 30° axial beamwidth. The antenna has a radome that makes it environmentally sealed. The input, WR-22 waveguide, is first converted to TM01 (E01) circular waveguide mode then to TEM biconical mode for low loss and maximum efficiency. This antenna is linearly polarized along the antenna axis with 4 dBi gain. SWR is less than 1.3.
Microwave Engineering Corp., North Andover, MA (978) 685-2776. Circle No. 242
RF Power MOSFETs
The models ARF465A/B and ARF1505 are high power, super rugged, high voltage RF power MOSFETs. These are designed specifically for high power, industrial RF generator/amplifier applications, below 50 MHz, where the power supply is 300 V or less. They feature power dissipation of 250 and 1500 W, respectively, and are designed to withstand operating voltages up to 300 V where their 1200 V breakdown rating gives the 4x safety factor required for class E or C-E operation. Price: ARF1505 - $186.57 and ARF465A/B - $35.54. Delivery: four weeks ARO.
Advanced Power Technology RF, Bend, OR (541) 382-8028. Circle No. 244
This low loss dielectric, rigid, syntactic foam material has been introduced as part of the ECCOSTOCK® line. ECCOSTOCK CK is a lightweight controlled dielectric material that is available with dielectric constants from 1.7 to 10.0. The material is moldable and lends itself to being machined to meet complex configurations. It is ideal for aerospace applications where density is vital to solutions. It is also a choice material for microwave lenses because of its low loss properties and its ability to be molded into large volume spheres without incidence of shrinking or cracking.
Emerson & Cuming Microwave Products Inc., Randolph, MA (781) 961-9600. Circle No. 245
This three slot VME size, ultra high performance, broadband synthesizer is designed specifically for ATE applications. The IBS series synthesizers are based on indirect PLL design technology with internal DDS for fine resolution. This series is ideally suited for ATE as well as radar and EW system applications where broadband coverage, low phase noise, fast switching speeds and reliability are of primary importance. The VCO/PLL design approach realizes much faster switching speeds, good microphonic performance and lower power consumption. This unique design architecture allows for switching speeds of 10 to 250 ms, combined with low phase noise levels.
Elcom Technologies Inc., Rockleigh, NJ (201) 767-8030. Circle No. 247
The PTS D310 is one of a series of broadband dual-channel synthesizers. Configured in a single rack-mount cabinet, each instrument contains two fully independent low phase noise, low spurious output and fast switching frequency synthesizers. The PTS D310 features two channels, each covering 100 kHz to 310 MHz with 0.1 Hz resolution. Frequency switching speed is 20 ms or better, phase noise at 310 MHz is -115 dBc/Hz at 1 kHz offset, spurious outputs are -70 dBc or better, and output power is up to +13 dBm. In the dual-series, each output channel is controlled through a separate 50-pin parallel interface pin compatible with the interface on current PTS synthesizers. Price: $8,010.00.
Programmed Test Sources Inc., Littleton, MA (978) 486-3400. Circle No. 249
The model E2696A is a general purpose 6 GHz active differential probe that allows users of spectrum and network analyzers to make high impedance measurements on differential signals. The E2696A InfiniiMax active differential probe enables engineers to measure and quickly validate differential signal designs, helping to shorten design cycles and reduce overall design costs of RF and microwave circuits used in aerospace and defense, communications and handheld electronics devices. Price: $10,378.00.
Agilent Technologies Inc., Palo Alto, CA (800) 452-4844. Circle No. 258
RF Probing Solution
This turnkey solution includes dual high performance characterization probes, a series of dedicated dual impedance standard substrates, ENA Wafer Cal™ calibration software, an Agilent ENA series RF network analyzer (E5071B) and Cascade's probing system. As an integral part of this solution, the company has introduced a series of dedicated dual and differential calibration standards as well as calibration software, ENA Wafer Cal.
Cascade Microtech, Beaverton, OR (800) 550-3279. Circle No. 252
Handheld Single-instrument Solution
The Cell Master™ is an addition to the family of handheld field test solutions that addresses the needs of RF engineers, maintenance personnel and cell site technicians responsible for the deployment, maintenance, troubleshooting and optimization of 2.5 and 3G base stations and networks. Combining the functionality of a cable and antenna analyzer, spectrum analyzer, power meter and T1/E1 analyzer in a durable instrument that is less than 2.5 kilograms, Cell Master allows users to perform a wide array of verification tests and signal analysis with only a few keystrokes.
Anritsu UK Ltd., Bedfordshire, UK 01582 433200. Circle No. 251
UWB Signal Generator
The model TFP1001 is a UWB signal generator for applications in time domain reflectometry, UWB interference analysis and measurement, and UWB antenna and propagation measurements. The TFP1001 provides separately triggerable positive and negative impulses, with rise times of typically 100 ps or less, and peak amplitudes of nominally 9 V into 50 . Triggerable at rates in excess of 100 megapulses per second, the TFP1001 is ideally suited to a wide range of UWB systems analyses and measurements. The generated waveforms produce spectral energy well beyond 10 GHz, permitting UWB system evaluation and testing over the full range of FCC part 15 subpart F compliant limits. Price: $1495.00.
Multispectral Solutions Inc., Germantown, MD (301) 528-1745. Circle No. 253
Noise Calibration Standards
The NBS-series of broadband noise calibration standards are for calibration laboratories, radiometer test and verification, and low noise amplifier tests. Using an innovative low loss waveguide horn design, the instruments provide system designers with a two- to three-fold improvement in noise temperature accuracy while reducing cost and easing use. The NBS-series of primary noise standards was acquired through collaboration with W.C. Daywitt, a referenced designer of NIST's primary noise standard. The NBS-series enables accurate, cost-effective and easy-to-use noise temperature calibrations up to 325 GHz, while eliminating the cost and down time associated with annual frequency calibrations.
Noise Com, Parsippany, NJ (201) 261-8797. Circle No. 254