COMPONENTS
Voltage Variable Attenuator
The AT65-0009 voltage variable attenuator was developed to provide designers with a high performance solution in a small surface-mount package. The single package allows designers to minimize size and component count. The device has a minimum dynamic range of 25 dB and is contained in a small SOT-25 surface-mount package. Key features include +40 dBm (typ) IP3, excellent linearity and a 25 dB (min) dynamic range. This voltage variable attenuator is manufactured using M/A-COM's GaAs MESFET MMIC process for the RF chips and discrete silicon PIN diodes.
BFI OPTiLAS International SA,
Evry, France +33 1 60 79 59 00. Circle No. 216
Feedthru Terminations
This series of 50, 75 and 93 Ω coaxial feedthru terminations are utilized from DC to 1 GHz (FT-50), DC to 500 MHz (FT-75) and DC to 150 MHz (FT-90). They are available with BNC, TNC, N or SMA connectors and have 5 percent DC accuracy and dissipate up to 1 W CW or 1000 W peak. The units have silver, gold, or nickel plated connectors. All units have 50 Ω contacts, except for the 75 and 93 Ωtype N units, which have 75 Ω contacts. Resistor networks are mounted in Mil spec plated housings. Price: $19.50. Delivery: stock to four weeks.
Elcom Systems Inc.
Boca Raton, FL (561) 883-1945. Circle No. 218
MMIC Mixer Series
The MH series cellular mixers utilize GaAs MMIC technology to provide consistent and repeatable high and low side LO performance in the cellular frequency bands from 800 to 960 MHz. Special features include high IIP3 of +32 dBm, conversion loss of 8.5 dB and noise figure of 9.0 dB. The MH203 and MH205 models use patented circuit and process technologies to realize extraordinarily high linearity performance for passive mixer designs. Price: $2.25 (10,000).
WJ Communications,
San Jose, CA (408) 577-6200. Circle No. 223
Broadband Power Combiner/Divider
These broadband power dividers operate with 7:1 bandwidths and output ports into the hun- dreds in a compact package. Capable of handling power levels of up to 10 kW peak and 500 W CW, this approach is suited for feeding antenna arrays or combining solid-state amplifiers. The dividers feature an SWR better than 1.5, phase tracking of ±5 degrees maximum and insertion loss of 0.3 dB maximum. Custom designs can be tailored to specific customer needs.
Forem,
Amesbury, MA (978) 388-7600. Circle No. 219
Ceramic Chip Capacitor
The X5R series general-purpose, EIA class II dielectric ceramic chip capacitor features tem- perature variation of capacitance within ±15 percent from -55° to +85°C and is available in high capacitance values. The capacitors are designed for use in general decoupling and filtering applications. The X5R series is available in 0402, 0603, 0805, 1206 and 2220 sizes. The capacitance tolerance is ±10 percent and the capacitance range is 0.047 to 100 µF. Construction materials include a ceramic body, layered electrodes, silver metallization, nickel plating and solder outer plating. The series is suitable for both wave and reflow soldering, and is packaged in embossed or paper taping.
KOA Speer Electronics Inc.,
Bradford, PA (814) 362-5536. Circle No. 220
SMB Bulkhead Crimp Connector
The model RP-4252-B reverse polarity (reverse gender) SMB bulkhead crimp connector is 802.11b Wi-Fi™ compatible. It will not mate with standard SMB plugs, so it complies with FCC Part 15. Designed for use up to 4 GHz, this connector features a nickel-plated brass body, gold-plated contact, nickel-plated hex nut and lock washer, and Teflon insulation. Cable assemblies with the RP-4252-B termination on one end and all popular coaxial interfaces on the other are available as standard items with lengths as short as two inches.
RF Connectors,
San Diego, CA (858) 549-6340. Circle No. 221
RF MEMS Switch
These RF switches are universal building blocks used in cell phones, military communi- cations, radar systems, and automated test equipment. RF switches using MEMS technology offer superior electrical performance, low power consumption and long life in a micro-sized package. Currently available is a SP2T switch with a frequency range of 300 kHz to 6 GHz.
Dow-Key Microwave,
Ventura, CA (805) 650-0260. Circle No. 217
BMA Connector Family
The high performance BMA family of connectors is a result of extensive experience in the design and manufacture of high frequency microwave connectors and cable assemblies. The BMA connectors are both shock and shear resistant, and are designed to perform mode-free to 26.5 GHz and features a "blind-mate" that joins the connectors without visually seeing the connector interfaces mate. The Tensolite BMA series is manufactured to meet the interface standards published in MIL-STD-348. This interface is 100 percent compatible and interchangeable with the OSP interface.
Tensolite,
St. Augustine, FL (877) 890-7483. Circle No. 222
AMPLIFIERS
Hybrid Solid-state/TWT Amplifier
The model 10ST1G18 self-contained, air-cooled broadband hybrid solid-state and travel- ing wave tube (TWT) microwave amplifier is designed for applications where low harmonic content is required in sub-band ranges and where high gain and moderate output power are required. The amplifier provides a conservative 10 W (min) at the output connector. It has an instantaneous frequency range from 0.8 to 18.0 GHz in four sub-bands. Standard features include a built-in IEEE-488 (GPIB) interface, 0 dBm input, gain control, RF output sample port, SWR protection for the TWT, plus monitoring of the TWT helix current, heater voltage, baseplate temperature and cabinet temperature. Price: $65,000.
Amplifier Research,
Souderton, PA (215) 723-8181. Circle No. 224
3.5 GHz Tower Top Duplexer/Amplifier
The Model S5996 duplexer/amplifier passes 25 MHz bands within the 3400 to 3500 (RX) and 3500 to 3600 (TX) frequency spectrum. The RX gain is 15 ±1dB, with a maximum noise figure of 2.25 dB. Three alarm modes indicating "soft" or "hard" LNA failures are built into the circuit. The RX channel has 70 dB of rejection of the TX before and after the LNA. The TX channel has < 0.5 dB of insertion loss with a power handling of > 100 W. Both channels are to > 18 dB return loss.
Delta Microwave,
Oxnard, CA (805) 240-1044. Circle No. 225
Low Noise Amplifier
The RMLA31400 is a three-stage MMIC low noise amplifier (LNA) designed for 31 to 40 GHz operation. Fabricated utilizing the GaAs MHEMT production process, the amplifier is ideal for applications including point-to point, point-to-multipoint and LMDS radio communications. The RMLA31400 operates with a single-positive DC voltage supply of 1.9 V DC (typ). Thermal requirements include a storage temperature range of -55° to +125°C. Size: 2.5 mm x 1.25 mm x 100 µm.
Raytheon RF Components,
Andover, MA (978) 684-8900. Circle No. 226
Broadband 27 dBm Linear Amplifier
The TPT3003500-.5 linear amplifier covers 250 to 3500 MHz, and produces a minimum of 27 dBm at 1 dB compression with 30 dB gain. Typical IP3 is 38 dBm; input SWR is < 1.5 and output match is < 2.3. Size: 3.6" x 1.5" x 1.25".
Transistor Power Technology Inc.,
Huntington, NY (631) 491-0265. Circle No. 230
Power Amplifier
The model RFS P2020 power amplifier is simultaneously optimized for maximum performance in the 802.11b and 802.11g modes. It maintains its high efficiency with on-chip self-regulating dynamic power control, eliminating the need for external control circuitry to regulate current consumption. The result is maximum efficiency at both low and high power levels in 11b and 11g modes thereby greatly extending system battery life. The P2020 enables a high average output power at a low current level, ensuring maximum range at maximum data rates. It is also equipped with a sleep mode feature limiting the current consumption to less than 1 µA when the power amplifier is not in use. Designed to integrate with WLAN transceiver chipsets, it is housed in a LPCC package and operates from a single 3.3 V power supply. Featuring a power gain of 30 dB, the amplifier enables reduced transceiver output power to further improve the system efficiency and extend battery life. Size: 3 mm x 3 mm.
RF Solutions Inc.,
Norcross, GA (770) 263-2600. Circle No. 227
2.4 GHz Power Amplifier
The SE2522L highly linear 2.4 GHz power amplifier offers a combination of performance and power efficiency to IEEE 802.11b systems. The device combines an efficient silicon germanium architecture with power control circuitry to reduce current consumption, while achieving power-added efficiency that ensures reliable transmissions over an extended range. The SE2522L operates at a typical current consumption of 110 mA. This results from integrated power-management control features as well as a silicon germanium structure that provides high thermal conductivity and low junction temperature. The device operates using a single 3.3 V supply. Price: $0.94 (100k).
SiGe Semiconductor,
Ontario, Canada (613) 820-9244. Circle No. 228
HBT Push-pull Amplifier
The CGA-6618 model HBT push-pull amplifier is targeted at applications in cable TV digital distribution networks. The unit is ideal for use in distribution boxes and as a line amplifier for CATV networks. It operates at 5V/150 mA across the 50 to 860 MHz frequency range. The CGA-6618 delivers CSO of -81 dB, CTB of -70 dB and 14 dB of gain at 500 MHz. The unit achieves a P1dB of 21 dBm, output IP2 of 73 dBm and output IP3 of 40 dBm. The standard ESOP-8 package provides excellent heat sinking for demanding thermal environments. Price: $3.70 (10,000).
Sirenza Microdevices,
Sunnyvale, CA (408) 616-5400. Circle No. 229
ANTENNAS
Embedded Antenna
The ClearLink 5800 is an ultra-small, low cost, low profile antenna for 802.11a/b wireless local area network and Bluetooth™ personal area network applications. The ClearLink 5800 is a tri-band antenna with full coverage of the 2.4 GHz band for Bluetooth and 802.11b. The features include a small form factor, ability to be mounted over board components thus saving board space, high volume production design using lightweight molded plastics, assembled using standard surface-mount technology processes, insensitive to ground plane size, competitive pricing, mounts directly to ground planes and no external matching components required.
e-tenna Corp.,
Laurel, MD (240) 456-4100. Circle No. 232
Plug and Play Antennas
The new Revie™ line of internal antenna solutions will support data applications over GSM, DCS, PCS, 868 MHz and 2.4 GHz ISM networks. The antennas are ideal for low volume applications because they have an independent ground plane design, which minimizes the engineering resources, needed for production. The product line includes the Revie, the Revie Blue and the Revie Pro.
Centurion Wireless Technologies Inc.,
Aylesbury, UK +011-44-1296-339-808. Circle No. 231
Ceiling Mount Antenna
The SL1852P12NF, 2 dBi omnidirectional ceiling mount antenna is for use in the PCS band from 1850 to 1990 MHz. The antenna has the same kind of characteristics that a systems engineer is used to seeing when they view the measured data that is supplied with much larger traditional omnidirectional antennas. The pattern is uniform and symmetrical with no major nulls within the coverage area. The antenna mounting system is adjustable for ceiling tile depth variances of as much as 0.5" from the t-bar support system. The antenna comes standard with SMA female connector. Size: 2.5" x 2.5" x 0.8".
Cushcraft Corp.,
Manchester, NH (603) 627-7877. Circle No. 259
Gaussian Antenna
This patented, high performance Gaussian antenna is available at frequencies up to 112 GHz. Side-lobe levels have been reduced to less than -43 dB with cross-polarization isolation at -38 dB and SWR < 1.1 (max). Major benefits from the low side-lobe interference characteristics are reduction in operational costs and susceptibility to jamming or eavesdropping in military and secure applications. The compact, rugged design is one-third the length of conventional corrugated antennas and may be used for mobile or static operations.
Flann Microwave Ltd.,
Bodmin, UK +44 1208 77777. Circle No. 233
Wireless Embedded Antennas
These omnidirectional embedded antennas are used in Wi-Fi, wireless local area network, wireless Internet, bar-code-scanning and point-of-purchase RFID applications. Supplied in custom fit and size, these antennas are lightweight and provide easy assembly placement. The model 703584 is available in the 2.400 to 2.485 GHz frequency range, gain of 0 dBi nominal, SWR of 2.0 maximum, linear polarization, 50 Ω impedance and weighs only .0097 kg. The model 703663 has the same specifications, but weighs only .0046 kg.
Tecom Industries Inc.,
Thousand Oaks, CA (805) 267-0100. Circle No. 235
Dual Linearly Polarized Antenna
The model 120DL4 dual linearly polarized antenna operates over the 6 to 18 GHz frequency range with an SWR of less than 2.5. It provides high radiation efficiency over the entire 3:1 bandwidth with a nominal beamwidth of between 45 and 90 degrees. Custom beamwidths and shaped radiation patterns can be provided through the use of dielectric lenses. Key features include RF power handling up to 200 W CW, high port-to-port isolation and compact size. It is suitable for use in extreme environment of high dynamic airborne flight.
Nurad Technologies Inc.,
a division of Chelton Microwave,
Baltimore, MD (410) 542-1700. Circle No. 234
DEVICE
Enhancement-mode PHEMT FET
The ATF-521P8 E-PHEMT FET features a third-order output intercept point of +42 dBm that is meant to suit the needs of next-generation 2.5 and 3G base stations. The FET offers performance optimized for the second and third stages of front-end low noise amplifiers, and driver or pre-driver amplifiers in cellular base stations in the 900 MHz, and 1.9 and 2.1 GHz frequency bands. Size: 2.0 x 2.0 x 0.75 mm. Price: $2.63 (5,000 to 9,999).
Agilent Technologies,
Palo Alto, CA (800) 235-0312. Circle No. 236
INTEGRATED CIRCUITS
Single-chip RF Transceiver
The CC1020 transceiver chip is designed for FSK and ASK systems operating in the 424 to 470 MHz and 848 to 940 MHz frequency bands. Key features include receiver sensitivity of -119 dBm, programmable data rate of 153.6 kbps, selectivity of 30 dB adjacent channel rejection and 40 dB alternate channel rejection, adjacent channel power of -45 dBc, power supply of 2.3 to 3.6 V, narrowband digital RSSI function, intelligent wake-up circuitry for power management and fully on-chip VCO. Price: USD 2.6 (million).
Chipcon AS,
Oslo, Norway +47 22 95 85 44. Circle No. 237
Transmitter/Receiver
The MICRF005 receiver and MICRF103 transmitter pair, part of the QwikRadio™ RF products, provides a 115 kbps data-rate at 800 MHz to 1 GHz operating frequency. Both devices operate from a 5 V supply. The MICRF005 consumes 10mA supply current; the MICRF103 consumes 16mA. The MICRF005 is offered in SOIC-14 packaging and the MICRF103 comes in a SOIC-8 package. Price: MICRF005 $2.33 (1k) and MICRF103 $1.61 (1k). Delivery: eight weeks.
Micrel Inc.,
San Jose, CA (408) 944-0800. Circle No. 238
PACKAGING
Soldered Assembly Packaging
This new process for producing premium packages utilizes advanced furnace profiling techniques combined with a variety of solder materials and soldering techniques. The result is the ability to quickly deliver packages with any combination and number of the termination types including capacitive feedthrus; GPO™/GPPO™ connectors; RF and DC feedthrus; HF probes, and grounding pins. Frequencies of up to 65 GHz are achieveable with hermeticity being offered at up to 1 x E-9cc/sec @ 1 atm.
Thunderline-Z,
Hampstead, NH (603) 329-4050. Circle No. 240
SOFTWARE
Circuit Simulator
The APLAC 7.80 is the latest release of the APLAC Circuit Simulation and Analysis tool. Features include multivariate steady-state time domain analysis, faster harmonic balance analysis, a full-scale micro-electro-mechanical systems library and on-line access to APLAC documentation. The APLAC Simulation Builder (ASB) connectivity tool integrates the simulator with third-party design frames, furthering design workflow. ASB enables seamless integration between the APLAC simulator and forward-moving design frameworks.
APLAC Solutions Corp.,
Helsinki, Finland +358-9-54045000. Circle No. 242
Simulation Software
The Simplorer 6.0 simulation software is designed for the digital prototyping of multi-technology systems used in the automotive, aerospace and power-electronics industries. The software was built on a powerful co-simulation technology that enables engineers to accurately model systems. The features include VHDL-AMS, which is new to the IEEE standard modeling for analog mixed-signal design. The software is compatible with the standard SPICE 3F5 format, it now supports DC and AC analyses, and the new hydraulics library provides a set of models for power-train and other hydraulic applications. Also, users can generate highly accurate system-level models.
Ansoft Corp.,
Pittsburgh, PA (412) 261-3200. Circle No. 241
SOURCES
VCXOs
The RFV300 voltage-controlled crystal oscillator (VCXO) series features low jitter and phase noise, allowing full use of the allotted bandwidth in a system, as well as lower bit rate errors in optical data communications. With phase jitter at < 0.5 ps and frequencies from 600 MHz to 1.25 GHz, the series is ideal for applications such as SONET, SDH, ATM and WAN. The series features a standard operating temperature of -20° to 70°C and has frequency stabilities of ±50, ±25 and ±20 ppm. The series is offered in 3.3 or 2.5 V versions and features LV-PECL complementary outputs. Size: 7.5 x 5.0 x 1.5 mm. Price: $25.00 (1000). Delivery: 10-12 weeks.
Fox Electronics,
Fort Myers, FL (888) 438-2369. Circle No. 243
Clock References
These clocks, which operate at 9.95328 GHz (OC192), 19.9066 GHz and 39.8131 GHz (OC768), offer phase noise performance which translates into low intrinsic jitter for reference clock sources. The references come in a variety of package configurations including stand alone, connectorized units, drop in units with stripline interfaces and carrier mounted devices suitable for integration into large assemblies. High frequency stability is a common feature of these units with less than 1 MHz of frequency variation over a 40° to +70°C operating temperature range at 10 GHz in a free running unit.
Lucix Corp.,
Camarillo, CA (805) 987-6645. Circle No. 244
Tripler
The ATA-2634 tripler converts a 2.6 to 3.4 GHz input to a 7.8 to 10.2 GHz output. With a +10 to +13 dBm input, the ATA-2634 produces a typical output level of +15 dBm. Designed for communications applications, the ATA-2634 is available in both SMA connectorized and carrier outlines. The ATA-2634 has a typical fundamental suppression of 15 dBc, while the second harmonic suppression is typically 25 dBc. The supply requirement is +5 V at 110 mA.
Marki Microwave,
Morgan Hill, CA (408) 778-4200. Circle No. 245
VCSOs
The model M4001 and M4002 VCSOs are designed for applications between 600 MHz and 2.5 GHz that require a low jitter sine wave signal. The M4001 is a 3.3 V device, and the M4002 is a 5 V device. The oscillators feature a low noise design that offers sub-picosecond jitter at 0.15 ps RMS (typ). Stability is ±100 ppm over operating temperature. They also offer low phase noise of -120 dBc/Hz at 10 kHz, -145 dBc at 100 kHz and ±50 ppm APR pull capability. With a modulation bandwidth of 500 kHz (min), direct modulation of the M4001/M4002 is possible. The products are well suited as an IF local oscillator or mixer local oscillator driver for various 2.4 GHz spread spectrum transceiver chipsets, IQ modulators, mixers, and 802.11b (WLAN) and ISM band applications. Sine wave output levels up to +10 dBm are achievable with the 5 V M4002 device and up to +8 dBm with the M4001 3.3 V device.
M-tron Industries,
Yankton, SD (605) 665-9321. Circle No. 246
VCO
The V844ME05 voltage-controlled oscillator (VCO) is designed to optimize performance and quality of any applicable VCO by offering superior phase noise and linear tuning. The V844ME05 covers 3970-4150 MHz within a control voltage of 0.5 to 4.5 VDC. The V844ME05 draws 18 mA from a 5 VDC supply and furnishes the end user with 2.25±1.25 dBm of output power into a 50 W load, guaranteed to operate over the extended commercial temperature range of -40° to 85°C. The V844ME05 is exemplified by its capabilities, pushing less than 7 MHz within 5 percent of the nominal supply voltage and pulling less than 12 MHz with a 14 dB return loss, any phase. Size: 0.5" x 0.5" x 0.13". Price: $15.95/VCO. Delivery: Stock to four weeks.
Z-Communications Inc.,
San Diego, CA (858) 621-2700. Circle No. 248
Wideband VCO
The model 790-600T voltage-controlled oscillator generates frequencies from 400 to 800 MHz with control voltages from 0.5 to 20.0 V. The unit typically requires 23 mA of current from a 5 V supply voltage. Typical phase noise at 100 kHz offset is -122 dBc/Hz. Typical output power is 5.5 dBm. Second harmonic suppression is -8 dBc (typ) and third harmonic suppression is -18 dBC (typ). The unit is housed in a surface-mount, pick and place/reflow compatible package. Size: 0.500" x 0.500" x 0.156".
Vari-L,
Denver, CO (800) 266-0103. Circle No. 247
SUBSYSTEMS
Vector Modulator
The model 7218 I-Q vector modulator is ideally suited for more complex and demanding electronic warfare simulator system phase and amplitude control requirements. It covers a frequency range of 2 to 18 GHz, is capable of a full 360° of phase control and 20 dB of amplitude control. Variations over temperature do not exceed ±0.1°/°C and 0.02 dB/°C, respectively. It can accept an input power level of +20 dBm, without performance degradation and will survive input levels of +30 dBm. Insertion loss is 16 dB (max) and SWR is 2.2 (max). The response time of the unit is 1 ms (max). Control is accomplished by 12-bit TTL inputs for both the I and Q channels which allows for monotonic, high precision calibration of phase and amplitude. The model 7218 operates over a -40° to +85°C temperature range. Size: 4.95" x 3.35" x 1.00".
Herley Industries,
Farmingdale, NY(631) 630-2000. Circle No. 251
Broadband Synthesizer
This ultra-fast, ultra-low phase noise, 0.5 to 40 GHz broadband synthesizer is based on direct- analog techniques combined with direct synthesis for fine-step resolution. This series is ideally suited for radar and EW system applications, where low phase noise and fast switching speeds are of primary importance. The design allows for fast switching speeds of 200 ns, combined with ultra low phase noise levels. Options are available in a broad range of OEM application dependent configurations, which are tailored to specific system requirements.
Elcom Technologies,
Rockleigh, NJ(201) 767-8030. Circle No. 250
Duplexer Assembly
The WSDA-00060 duplexer assembly was developed for Russia's Tetra communication sys- tem. The WSDA-0060 can be modified for other countries operating the Tetra system. The duplexer assembly incorporates a bi-directional coupler and a low noise amplifier in the 450 MHz band. The unit is capable of handling a power rating of 100 CW and a peak power of 1000 W. The unit has extremely narrow passbands with low insertion loss and high attenuation levels close to the band edges.
K & Microwave Inc.,
Salisbury, MD (410) 749-2424. Circle No. 252
TEST EQUIPMENT
On-wafer Probe
The Infinity Probe™ on-wafer probe offers both high frequency performance and low, sta- ble contact resistance on aluminum pads (typically < 0.1 Ω). The performance on aluminum pads is achieved by optimizing the key probe factors that affect contact resistance: tip contact area, force applied, tip metallurgy and skate. Devices with aluminum pads are much more difficult to probe than devices with gold pads. The force delivery of the probe ensures only a small horizontal motion (skate) is necessary to break through the aluminum oxide to make contact with the pad. This, combined with the fact that the probe tip contact area is approximately 12 x 12 µm ensures minimal damage to the pad (critical for wire bonding to pads) and allows good contact with pads as small as 50 x 50 µm. The Infinity Probe offers good return loss, attenuation, crosstalk and calibration verifications, due to the lithographic thin-film construction that confines the fringing fields more tightly than conventional flexible coplanar tips. This reduces unwanted transmission modes or couplings to nearby devices or other probe tips.
Cascade Microtech Inc.,
Beaverton, OR (800) 550-3279. Circle No. 253
RF Power Analyzer
The model 2800 RF power analyzer is engineered for the radio frequency test require-- ments of wireless phones, RFIC power amplifiers and related RF power devices. This model includes only the capabilities for wireless testing in a package that is optimized for high speed production environments. The result is a compact, ready-to-run instrument that is pre-configured with the appropriate frequencies, channel numbers, offsets and other test parameters specific to the latest wireless standards. Price: $15,995. Delivery: six to eight weeks ARO.
Keithley Instruments Inc.,
Cleveland, OH (440) 248-0400. Circle No. 254
Precision Generators
The UFX-EbNo series of precision carrier-to-noise (C/N) generators, a family of fully auto- mated instruments for testing wireless LAN, cable modem, satellite and military systems, is new to the market. The UFX-EbNo generators support five operating modes: C/N, bit energy-to-noise density, carrier-to-noise density, carrier-to-interferer and noise generator. The instruments operate in frequency bands between 5 MHz and 44 GHz, making them ideal for a full range of communications services including SATCOM, military radio, DOCSIS, HDTV, wireless LAN, digital audio broadcast, Milstar, Intelsat and Inmarsat.
Noise Com,
Parsippany, NJ (201) 261-8797. Circle No. 255
Radio Channel Simulator
The SOFI radio channel simulator delivers 3G conformity and deployment tests plus GSM450-850. 12-bit processing and 14-bit digital mixing. Spurious signals are 60 dBm in 16 MHz processing band. Input range -40 to 0 dBm. Zero insertion loss design maintains SNR > 60 dB. Built-in local oscillators and a three-year calibration cycle reduce total system costs. PC and triggers ease timing advance tests.
Sofimation Ltd,
Helsinki, Finland +358 9 670 370. Circle No. 256
Microwave Test Assemblies
The PHASEFLEX™ test assembly is now available in frequency ranges up to 65 GHz. These internally ruggedized microwave coaxial assemblies provide good phase and amplitude stability with flexure. They combine the electrical advantages of an expanded PTFE dielectric with an integrated environmental protection system. With the ruggedization designed into the cable, the assemblies have excellent durability while remaining exceptionally lightweight and flexible. PHASEFLEX assemblies are intended for production test applications or where the test area is not located in the vicinity of the equipment. The assemblies are also well suited for vector network analyzer setups where frequent measurements are performed. They offer power-handling capability with low phase change that permits accurate and repeatable measurements without needing to perform time-consuming calibrations between measurements. The internally ruggedized design allows for 1" (min) bend radius without affecting the cable performance, and there is virtually no springback.
W.L. Gore & Associates Inc.,
Elkton, MD (800) 445-4673 or (302) 292-5100. Circle No. 257
Quick-change RF Coaxial Connectors
A full series of quick-change RF coaxial connectors that are designed for mating to wattmeters and other high power test and monitoring equipment is available. TRU Quick-change RF connectors feature a 1-1/4" universal panel receptacle and adapter block which has an interface that accepts 7-16, BNC, C, HN, LC, LC-large, LT, N, QDS, SC, SMA, TNC, UHF, LC-HV, LC-POL, SQS, and 7/8" and 1-5/8"-50 EIA front-ends. Designed for wattmeters and other high power test and monitoring equipment, they permit rapid changes between series.
TRU Corp.,
Peabody, MA (800) 262-9878. Circle No. 258