- Buyers Guide
New Waves: Semiconductors/MMICs/RFICs
InGaP HBT/pHEMT Process
This proprietary, patent-pending, commercial process integrates heterojunction bipolar transistors (HBT) with pseudomorphic high electron mobility transistors (pHEMT) on a single indium gallium phosphide (InGaP) gallium arsenide (GaAs) die. The process enables several new wireless power amplifier products including integration of power amplifiers and RF switches on the same die. This HBT/pHEMT process provides a practical solution to achieve greater integration of functionality on a single die, which reduces space requirements for RFIC designs.
High Speed Data Converter
The model AD9445 is a 14-bit, 125 mega-samples-per-second (MSPS) analog-to-digital converter (ADC) that achieves a spurious-free dynamic range (SFDR) above 80 dBc and a signal-to-ratio (SNR) of 72.5 dBfs at input frequencies up to 300 MHz. A converter with high SFDR can capture weak signals in the frequency band of interest, despite the presence of strong, interfering signals. The SNR characteristics of the AD9445 enable wireless infrastructure equipment designers to improve cellular base station receivers by offering lower overall system noise at higher intermediate frequencies, which translates to expanded cellular coverage and fewer dropped calls. Moreover, the combination of high input frequency and high sampling rate eliminates a frequency down conversion step before the ADC and eases the analog filtering burden. Price: AD9445-125 – $59.50 and AD9445-105 – $49.30.
Analog Devices Inc.,
High Frequency Prescalers
The model UPB1512TU (divide by 8) and model UPB1513TU (divide by 4) are silicon prescalers that operate at frequencies of 5 to 13 GHz. Both models are ideal for V-SAT, FRS, GMRS and SMR, as well as FWA and other SRW applications. The UPB1512TU and UPB1513TU are fabricated using NEC’s 50 GHz UHS2 silicon bipolar process. These prescalers feature a supply voltage of 4.5 to 5.5 V, current consumption of 48 mA typical at 5 V and an output power of –4 dBm at 13 GHz. Size: 2.2 × 2.0 × 0.5 mm TU package. Price: $2.46 (10,000).
California Eastern Laboratories,
Santa Clara, CA
The model HMC470LP3 and model HMC472LP4 are GaAs MMIC digital attenua-
tors with TTL/CMOS control, which makes them ideal for wireless infrastructure, test equipment and microwave radio applications from DC to 3 GHz. The HMC470LP3 is a 5-bit digital attenuator with a typical insertion loss of 1.4 dB and will provide any attenuation state from 1 dB LSB to 31 dB with a typical step error of ±0.2 dB. The HMC472LP4 is a 6-bit digital attenuator with a typical insertion loss of 1.5 dB and will provide any attenuation state from 0.5 dB LSB to 31.5 dB with a typical step error of ±0.3 dB.
Hittite Microwave Corp.,
MMIC Buffer Amplifier
The model XB1006 is a gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) three-stage buffer amplifier that offers ultra wide bandwidth and high dynamic range. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor (pHEMT) device model technology, this buffer amplifier covers the 18 to 38 GHz frequency band and can operate at 3.5 or 5.5 V. This device can also be operated with all three stages biased in parallel or with independent bias for input and output stages, as required to optimize performance. This MMIC device has a small-signal gain of 21 dB with a noise figure of 3.2 dB across the band. Delivery: six to eight weeks ARO.
Mimix Broadband Inc.,
SPDT RF Switches
The model PE4272, model PE4273 and model PE4283 are 50 and 75 W RF UltraCMOS™ switches. These switches are ideally suited for high volume mobile wireless and broadband RF applications where size, performance and value are critical. The models feature DC to 4 GHz operation, +32 dBm P1dB, > 35 dB isolation at 1 GHz, 2 kV ESD tolerance and good linearity.
Peregrine Semiconductor Corp.,
San Diego, CA
Pre-driver Power Amplifiers
The model RF3807 and model RF3809 are gallium arsenide heterojunction bipolar tran-sistor (GaAs HBT) pre-driver power amplifiers designed for cellular base station applications. The half-watt RF3807 and two-watt RF3809 are single-stage devices that operate across CDMA, GSM, DCS, PCS and UMTS frequencies, and lower the total cost of implementation for manufacturers of cellular base stations. These models feature high linearity in all bands (greater than +42 dBm, UMTS), high power-added efficiency (greater than 40 percent, P1dB) and broadband performance of 450 to 2200 MHz, providing functionality for a variety of wireless applications. Price: $4.07 (10,000).
RF Micro Devices Inc.,
Complete EDGE Radio
The Helios™ Mini is a small complete dual-chip radio subsystem for E-GPRS (GSM/GPRS/EDGE) mobile platforms. It combines a single-chip direct conversion transceiver with a power amplifier containing an integrated PA controller (PA/PAC), which creates a seamless closed-loop transmit system. The SKY74945 direct conversion transceiver is a 6 × 7 mm package that consists of a direct conversion receiver, a transmitter with a voltage-controlled oscillator (VCO) and a fully integrated fractional-N synthesizer. The SKY77332 PA/PAC incorporates a GSM850/900 block, a DCS1800/PCS1900 PA block, impedance-matching circuitry for 50 W input and output, an integrated coupler, a downconverter and a PA control block into a single 56 pin, 8 × 8 × 1 mm RFLGA package.
Skyworks Solutions Inc.,
he model MSNN-2DT-04T is a single-pole, two-throw absorptive solid-state switch module with options RLC and 50M01. This switch offers an insertion loss of 1.5 dB maximum, and an isolation of 60 dB minimum, operating between 50 to 100 MHz. The VSWR is 1.5. Size: 1" × 0.70" × 0.40"
American Microwave Corp.,
The model 50MAP1.2 is a DC to 2 GHz attenuator that features 0.1 dB step size resolution and offers users a low cost solution. This unit is ideal for fine amplitude adjustment in broadband systems. Additional features include: total attenuation of 1.2 dB with step sizes 0.1, 0.2, 0.3 and 0.6 dB, insertion loss less than 3 dB, incremental accuracy of ±0.1 dB, average power handling is 1 W and control is via +12 V at 14 mA per bit. Connectors are SMA (f) and delivery is from stock.
Wi-Fi and Wi-Max Bandpass Filters
These Wi-Fi bandpass filters have been designed to pass the 2.4 GHz band and are available for channels 1, 3, 6 and 11. These high quality, high performance filters are available in 4 and 8 sections depending on the application. Center frequencies range between 2.412 and 2.462 GHz, with a typical bandwidth of 22 MHz, insertion loss of 2 dB, return loss of 18 dB, out of band rejection of greater than 60 dBc, harmonic rejection of > 90 dB and power handling of 50 W. Size: 4.25" × 2.20" × 0.83" with N-type connectors.
Anatech Electronics Inc.,
Temperature Stable Ceramic Filters
These miniature temperature stable ceramic filters and diplexers employ advanced thin film technology making them suitable for precision, low cost, high volume applications. The high Q of the ceramic/metal system produces good in-band performance and high out-of-band rejection, and devices that are stable over the temperature range of –55° to +125°C. These filters are available at frequencies from 2 to 60 GHz and are ideal for point-to-point radios, UMTS systems and military applications.
Dielectric Laboratories Inc.,
Coaxial Micro Plugs and Receptacles
The Coaxial Micro Plugs (CMP) and receptacles are specially designed to reduce space on circuit boards and for vertical mounting on RF boards. They have good electrical performance on the right angle transitions up to 7 GHz and are fully compatible with the Hirose U.FL series. The cable diameters for using the CMP series are 0.8, 1.13 and 1.30 mm, and mated heights are 1.80 and 2.50 mm. The plugs and receptacles are suitable for wireless LAN and Bluetooth applications as well as GSM, GPRS and CDMA mobile phones.
GigaLane Co. Ltd.,
3 dB Hybrid Coupler
The model IMD 2297 is a quadrature 3 dB hybrid coupler that is ideal for RF/microwave and telecom applications. This thick film product is on an aluminum nitride substrate and operates at 6 GHz with a bandwidth of 10 percent. Its typical VSWR in a matched 50 W alumina system is 1.25 or better, with an input isolation of 18 dB or better. Insertion loss is 0.6 dB; phase split is ±3° and amplitude split is ±0.5 dB. Size: 0.322" × 0.322" × 0.025".
International Manufacturing Services Inc.,
Heat Spreader Capacitors
These heat spreader standoff capacitors are available on aluminum nitride, beryllium oxide and alumina. The capacitors provide an optimized mounting platform for gallium arsenide, silicon and other high power devices that provide dielectric standoff, thermal spreading and CTE matching. As standoff capacitors, these devices offer precise tolerances that make them ideal for jumper mount, bypass and tuning capacitor applications.
Ion Beam Milling Inc.,
The model WSD-00383 and model WSD-00384 are UHF factory tunable duplexers that offer medium and high levels of isolation respectively for macro, micro and repeater Tetra, Tetrapol or NMT-450 communication systems in the 380 to 512 MHz frequency range. Each duplexer offers low insertion loss of 2.75 dB and 2.50 dB maximum, respectively (< 2 dB, typical) over 3 MHz minimum passbands. Size: WSD-00383 4.4" × 6.2" × 3.8"; WSD-00384 6.3" × 7.7" × 3.8", excluding SMA-F connectors.
K&L Microwave Inc.,
Hybrid Band Reject Filter
The model 3BRX-1765.5/115-SR is a hybrid band reject filter with bi-directional inputs. This filter features a 3 dB typical bandwidth of 30 MHz. The notch depth is 40 dB at 1765.5 MHz. The VSWR is 2.0 from 500 to 3000 MHz excluding the notch area. The physical size is 1.25 × 0.75 × 0.40 excluding SMA female removable connectors. This filter is also available in SMT configuration.
The existing model 388 is an IF-to-tape/baseband converter that has received new life as model 388A. The model 388A offers eight output bandwidths of 2 to 80 MHz. Other features include tunable input of 10 to 250 MHz and output center frequencies from 100 kHz to 80 MHz, and front panel, RS-232, or optional Ethernet 10/100BaseT control of all functions. The model 388A circuitry, including AGC and level meters, has been improved for operation with pulsed signals and output amplitude flatness is good.
M/A-COM SIGINT Products,
Hunt Valley, MD
Ultra High Power Flexible Waveguides
These ultra high power flexible waveguides are manufactured with “cooling fins” incorporated into the design to facilitate the removal of heat from the unit through convection air flow. Fans can be incorporated to further enhance the power handling capability of the units. The model WR-187 assembly is capable of 10 kW CW and 1.25 MW unpressurized or 2.5 MW when pressurized to 15 PSIG. Compatibility with mating-system flanges can be achieved through electroplating processes performed with the company’s in-house plating department.
High Power Couplers
These high power couplers feature low intermodulation distortion (IMD) and 7/16 succo plating connectors. These couplers operate at a frequency range from 800 to 2000 MHz and offer a 30 dB coupling, directivity of 25 dB loss, VSWR of 1.3 at all ports and a power handling of 150 W. Delivery: one to two weeks.
St. Petersburg, FL
High Pass Filters
The VHF series of high pass filters offers good sub-harmonic rejection and operates from 850 to 7550 MHz. This series uses a 7-section high pass filter design and provides good passband matching (typical VSWR is 1.5), flat passband response and a sharp transition band. This filter is built with solid stainless steel unibody construction and coated with a durable gold finish. These units feature SMA type connectors, can handle high power (up to 7 W at input) and are temperature stable from –55° to 100°C. These filters are ideal for eliminating sub-harmonics and for DC blocking. Price: $19.95 each (Qty. 1–9). Delivery: in stock.
7-channel Switch Filter Bank
The model 7SFB-0R258R3-5-15-SFF is a switch filter bank that features seven bandpass filter channels within the 0.25 to 8.30 GHz frequency range and maintains > 60 dBc rejection up to 20 GHz. Passband insertion loss is better than 5 dB. Switching speed is 0.8 ms maximum. The unit operates from +5 and –12 VDC supplies. Size: 2.6" × 2.5" × 0.41".
Planar Filter Co.,
High Speed Frequency Divider
The model PS4-10F is a high speed, prescaler frequency divider optimized for 4 and 10 GHz. This model features a high input sensitivity of –10 dBm at 10 GHz and 25°C. This prescaler offers a maximum RF input power of +15 dBm. Size: 1" × 1" × 0.50"
Planar Monolithics Industries Inc.,
SDR Radio Diplexer
The model SL-5745/5830-11 is a diplexer that is used for software defined radios (SDR). This model is for the ISM band with passbands of 5725 to 5765 and 5810 to 5850 MHz. This diplexer exhibits less than 2 dB of loss in band while providing in excess of 70 dB isolation channel to channel. Typical return loss is greater than 17 dB and group delay is less than 30 ns at the passbands. A model for the UNI band is also available.
RF Coaxial Relay
The RMT series of multi-position coaxial relays provides good layout and package density with good RF performance to 18 GHz. Product is available with up to six output positions in a failsafe configuration. Options include DC header and logic. Latching version available soon. Size: SMA connectorized relay 1.33" × 1.80"
RelComm Technologies Inc.,
High Power Transmitter
This high power transmitter combiner is designed for base station systems for GSM, DCS, PCS and UMTS. These combiners offer high performance, low operation temperature and good stability for maximum reliability and energy efficiency. This combiner features high isolation, low operating temperatures, two separately fused fan banks for redundancy, long life span and is available in various channel combining configurations. Size: standard 19” – 2U rack size.
Renaissance Electronics Corp.,
High Power Waveguide Loads
This range of high power waveguide loads covers the L-band to Ka-band frequency ranges and features high reliability. The range also includes water element loads and ceramic loads with either convection or water cooling. For example, a recent development has been an S-band element load that is proven up to 7.5 MW peak, 10 kW average.
Newbridge, Edinburgh, UK
+44 131 333 2000,
The model C7113 is a 6 dB bi-directional coupler that covers the entire 100 to 1000 MHz frequency band. This makes it ideal for wideband military and commercial applications. This model features 200 W CW power handling, an insertion loss of 0.35 dB, VSWR of 1.20 and directivity of 20 dB.
Rugged Coaxial Attenuators
The VSA series of off-the-shelf rugged coaxial attenuators is designed for broadband applications in commercial and defense frequency bands. These fixed attenuators operate from DC up to 6 GHz and are offered in economical brass or stainless steel construction for durability. The 2 W VSA-MB product line is offered in SMA male to female, features all-brass construction and is available in attenuation values from 1 to 10 dB in 1 dB steps, as well as fixed values of 15, 20 and 30 dB, all with ±0.3 flatness and 1.15 typical VSWR across the band.
Vista RF Inc.,
Santa Clara, CA
These “SuperPowerAmps” feature infinite VSWR, up to 10 W of output power delivered to the load, frequency coverage from DC to 40 GHz, solid-state class A construction for reliability and good test room performance. The “S” series of amplifiers offers 1 to 800 W and 0.8 to 10.6 GHz. This series of amplifiers provides good linearity and low distortion for wireless test applications.
AR Worldwide RF/Microwave Instrumentation,
Ultra-wideband RF Amplifier
The model AF182093 is an ultra-wideband RF amplifier that provides a user with drop-in packaging. This model offers a maximum gain of 15 dB, gain variation of ±1 dB, maximum noise figure of 5 dB, maximum VSWR of 2.1 and Pout at 1 dB compression is +3 dBm. Nominal DC current at +3.2 V is nominal 45 mA.
San Jose, CA
20 W RF Amplifier
The model SM3437-43L is a GaAs FET amplifier designed for broadband wireless access applications. The unit operates from 3.4 to 3.7 GHz with a P1dB of +43 dBm and OIP3 of +63 dBm. Small-signal gain is 50 dB with a flatness of ±0.5 dB across the band. Standard features include a single +12 VDC supply, thermal protection with auto reset and over/reverse voltage protection. Size: 7.5" × 3.97" × 0.79".
Stealth Microwave Inc.,
Antennas for WiMAX Applications
The Vector series of 20 sector and omni antennas has been specifically designed for WiMAX applications. These antennas feature wide operating bands (currently 3.30 to 3.80 GHz and 4.9 to 5.9 GHz) that can be incorporated into new and existing networks. The antennas can also be used for Fixed Radio Access (FRA) and broadband networks. The base station sector antennas have 19 dBi gain, are available with 60°, 90°, 120° and 180° azimuth beam widths, and feature built-in electrical down-tilt to aid installation and operation. The omni antennas have 8 and 11 dBi gain. Also, all antennas in the Vector series come with a fully adjustable mounting kit.
European Antennas Ltd.,
+44 (0) 1638 731888,
Enhanced Data Extraction Software
SPview, a data extraction and analysis program for RF and microwave components and systems, has been enhanced with new features for the analysis of differential and mixed-mode S-parameters. The new version 2.43’s data extraction facility controls a standard single-ended transmission-reflection analyzer or two-port S-parameter vector network analyzer to generate multi-port data. The data is then transformed using a software algorithm to produce the mixed mode S-parameters. The resultant data can be excited differentially or in common mode to analyze the effect on systems response.
ARK RF Systems,
Isle of Wight, UK
+44 (0) 1983 400340,
The model MODRO40G is a surface-mountable voltage-tuned dielectric oscillator that is specially designed to be utilized in the instrumentations and communication industry. This model has low phase noise, typically –90 dBc/Hz at 100 kHz and center frequency of 39.812 GHz.
Milli Optics Inc.,
Franklin Park, NJ
Wideband Vector Signal Generator
The MG3700A stand-alone vector signal generator for outputting wideband modulation signals addresses the needs of the communications industry to test widening frequency bandwidths associated with new wireless communications systems using a single signal generator. Covering the frequency range of 250 kHz to 3 GHz, the built-in baseband generator provides a wideband RF modulation bandwidth of 120 MHz. The built-in 40 GB hard disk offers a high capacity waveform memory of 256 M sample/ch for handling a wide variety of large capacity waveform pattern files. A bit error rate measure, which is necessary for reception characteristics tests, is standard, while the ‘waveform addition function’ can digitally combine two signals and output them as one signal.
+44 (0) 1582 433 433,
Thin Dielectric Sheet Tester
This improved version of the model 03 thin dielectric sheet tester is used to profile DK, DF in-plane uniformity and to measure in-plane anisotropy over the operating band from approximately 2 to 11 GHz. With the aid of the Cavity™ instrument control and data processing software package for common analyzers, substrate materials for the order of 1 to 0.03 mm are measured. Testers are precalibrated before shipping. Complete setups are available including cables, test samples, interfaces and a hands-on instruction option.
Digital Microwave Radio System
The NLite™ Lx is a digital microwave radio system that delivers enhanced transmission capacity, allowing network operators the ability to transmit 3xDS3s plus 8xDS1s in a 30 MHz channel. The NLite Lx offers a simple and flexible design that is consistent with its family of NLite products. By offering comparable installation guidelines and a similar, compact format, operators familiar with the company’s existing product line can smoothly transition to the new solution when upgrading, as well as save time and money on training costs.
NEC America Inc.,
RF Fading Simulation Solution
The SOFI 06 radio channel simulator is a RF fading simulation solution that supports all possible GSM bands, 3G conformity and 3G deployment tests. It also gives further test credibility for 3G and 2 to 6 GHz systems in general. Significant features include fast test lap times, sample density for high data rates and fast AD, DA, I/Q operation. Importantly too, there is no insertion loss between input and output ports, and no spurious signals, local oscillator leaks or harmonics.