- Buyers Guide
× Bandpass Filter
The Ultra-Q model 50368M is designed to eliminate cellular and paging interference in multiple address systems, but can also be extended to any application requiring a programmable bandpass filter, including VHF, UHF, cellular, PCS and the original MAS bands. Ultra-Q can operate from narrow band voice grade to CDMA types of modulation. Elimination of interfering frequencies relatively close to the system operating frequency is made possible via the high Q of 28,000 offered by Ultra-Q. It will not degrade the desired signal and is programmable with any laptop or PC. The unit is only 3' high and fits neatly into a standard 19' rack (custom options are also available). Weight: 3 lb.
Englewood Cliffs, NJ (201) 227-0066.
Circle No. 216
× Reflective SP2T Solid State Switch
The model SWG-218-2DR-4NI (SW-7875-12) option 024 is a SP2T single polarity power supply solid state switch works from 200 MHz to 20 GHz with insertion loss of 1.1 dB at 200 MHz to < 2.1 dB at 20 GHz. Isolation is >= 80 dB at 200 MHz and >= 40 dB at 20 GHz. Amplitude is matched to within ±0.25 dB between port to port from 200 MHz to 20 GHz and switching speed < 180 ns ON and < 160 ns OFF. SWR is 2.0 (typ) and supply voltages are +5 V at 27 mA and +15 V at 1 mA (other supply voltages available). Size: 1.10" × 0.85" × 0.38". Weight: 0.75 oz.
American Microwave Corp.,
Frederick, MD (301) 662-4700.
Circle No. 217
× U-dielectric Capacitor
This 0402 U-dielectric with NP0 temperature characteristics provides higher power efficiency and ultra low equivalent series resistance, specifically for mini-power amplifiers, wireless LANs and the cellular market. The U series capacitor is a C0G chip capacitors are rated from 25 V in the 0402 size and are available in values from 0.5 to 39.0 pF. Price: 3 to 18¢ (100,000).
Myrtle Beach, SC (843) 946-0414.
Circle No. 219
× 25 W Load
The model 25-CT-FA 25 W conduction cooled load is designed for volume production applications. The compact 50 Ω load has a frequency range and SWR of DC to 1 GHz at 1.14 (max) and 1 to 3 GHz at 1.25 (max). SMA female or male connectors are standard but customer-specific semi-rigid or flexible cable connections are also available. This unit has no magnetic materials or plating and is available with AlN as an option to BeO ceramic. Price: $175 (1 to 10). Delivery: two to four weeks.
Bird Component Products (BCP),
Largo, FL (727) 547-8826.
Circle No. 220
The model DB7300 Rx multi-coupler is a single rack unit model providing four to 16 channels of receiver combining to a single antenna input. A single model with only a power splitter change now covers the entire band from 30 to 512 MHz. The coupler comes standard with CE/UL approved 115 V AC, 220 V AC or 13 to 15 V DC input options and can be adapted to any site requirement. The DB7300 offers 3 dB (min) gain and a noise figure of 4.0 dB (max), < 3.0 dB above 100 MHz. Weight: 6 lb. Size: 12" × 19" × 1.75".
an Allen Telecom company,
Dallas, TX (800) 676-5342.
Circle No. 221
× High Power Circulator
The model UFC3-521-01 three port, high power circulator is designed for 100 kW tubes and is constructed in aluminum and connects to a WR-975 waveguide. Flanges interface with CPR-975. A copper alloy water coolant system ensures stable performance over a large range of average power capability. Broader operating frequencies can be achieved with minor degradation in performance. A 60 dB ±1 dB probe with type N connector is port 3 of the load arm to monitor reverse power and ensure tube protection. It has 0.2 dB (max) loss, 19 dB (min) isolation and SWR of 1.2 (max). Weight: 160 lb.
The Ferrite Co. Inc.,
Hudson, NH (603) 881-5234.
Circle No. 222
× SAW Filters
This family of SAW filters are designed specifically for the WCDMA market and target high frequency (1.95 and 2.14 GHz) wideband applications. These piezoelectric filters are based on LiTaO3 and are supplied in surface-mount packaging of < 1 mm high, which provides high stability and performance, making it the ideal solution for the new WCDMA applications. The devices provide excellent performance with regards to an insertion loss of < 4 dB and high stop band attenuation. With an impedance of 50 Ω, no external matching circuits are required. All devices operate in the 30° to +85°C temperature range. Size: 3 × 3 mm and 2.5 × 2 mm.
Buchschlag, Germany +49 6103 690257.
Circle No. 223
× Flexible Microwave Coaxial Cable Assemblies
K-Flex flexible microwave coaxial cable assemblies features expanded PTFE, which gives the cables powerful advantages in electrical performance, physical integrity and flexibility. They are used in space, aircraft and military applications, and are available with hermetically-sealed connectors. K-Flex cables are produced using proprietary designs for extremely low SWR and maximum mechanical integrity. They perform well against torque, crushing, abrasion, tension loads and extreme flexing, and handle temperature cycles from 50° to +125°C. Electrical performance is mode free through 18 GHz or 26.5 GHz depending on the combination of connectors used. The cables are available in 0.095", 0.190", 0.230", 0.350" and 0.500" diameters.
Colorado Springs, CO (719) 635-6954.
Circle No. 225
× Triaxial Relay
The 7900 series triaxial pair relay is available in sizes ranging from two to 24 throws, with DC up to 800 MHz depending on the number of throws. Applications include switching MIL-STD-1553 bus signals, routing ECL and audio pairs, low noise, low level switching using driven shield techniques, and very low leakage current measurements using semiconductor parameter analyzers. The 7900 series features extremely low EMI and low SWR.
Calabasas, CA (818) 222-2301.
Circle No. 227
× Pulse Latching Relays
The coaxial RF 1P2T pulse latching RDT relay series incorporates enhanced surface-mount technology and provides low cost option in the DC to 8 GHz frequency band. These devices have 50 Ω impedance, with pulse latching actuation and are available with standard operating voltages of 12, 24 and 28 V DC. The relays are intended for high volume, high performance commercial wireless and industrial applications requiring small size. The series has an isolation of 85 dB (typ) at 900 MHz and 75 dB (typ) at 1900 MHz with a power handling of 65 W (typ) at 900 MHz and 45 W (typ) at 1900 MHz. Weight: 0.6 oz. Size: 0.635" × 0.635" × 0.550". Delivery: stock to six weeks.
RelComm Technologies Inc.,
Salisbury, MD (410) 749-4488.
Circle No. 232
× Low Frequency, High Power Directional Couplers
The model LCHP-0205 and LCHP-0510 low frequency, high power directional couplers offer accurate coupling, low insertion loss and high directivity in a compact package. The units are optimized for octave bandwidths and are available with a choice of coupling values. They are ideal for sampling power with a negligible effect on the transmission line and very low intermodulation products. Both offer a primary and secondary SWR of 1.15, while the LCHP-0205 has an insertion loss of 0.15 dB and the LCHP-0510 0.20 dB. The impedance for both units is 50 Ω, 500 W (avg) power, 5 kW peak. Connectors are SMA-female.
RLC Electronics Inc.,
Mt. Kisco, NY (914) 241-1334.
Circle No. 233
× SMA Field Replaceable Connectors
This family of SMA field replaceable connectors is designed for high performance and low loss to 27 GHz. They are available in various flange configurations for easy mounting on industry standard hermetic and non-hermetic packages. The bodies are passivated stainless steel, with Teflon insulators and gold-plated beryllium copper center contacts. The design incorporates features to reduce EMI/RFI and insure repeatable electrical characteristics from connector to connector. The connectors also feature low leakage and thermal stability. They have an impedance of 50 Ω.
Molex RF/Microwave Connector Division, Mooresville, IN (877) 665-3973.
Circle No. 230
× Reverse Thread TNC
This line of specialized interface adapters and connectors achieve compliance to FCC part 15.203 requirements in three different ways: reverse polarity, or gender; reverse, or left-handed threads; and the use of metric threads rather than Unified Standard. The reverse thread method is used in the model RT-1203-1X, TNC plug with left-handed threads. This 50 Ω connector is designed for use with RG-8/X or LMR-240 low loss cable and has a nickel-plated, machined brass body, Teflon insulation and gold-plated contact. Other styles are also available.
RF Connectors, a division of RF Industries, San Diego, CA (800) 233-1728 or (858) 549-6340.
Circle No. 234
× SMD Communication Crystal
The low profile RSX-6 SMD communication crystal has a miniature footprint size of 4.9 × 3.1 mm. It offers excellent shock and vibration performance and is ideal for GPS and wireless applications that require no frequency perturbations. The RSX-6 offers superior short-term stability and low aging at a low cost.
Auckland, New Zealand
+64 9 573 5554.
Circle No. 231
× Basestation Lightning Protectors
This line of gas-filled tube and quarter-wave type solutions for wireless basestation lightning protection are supplied in a variety of configurations, including bulkhead, pigtail and in-line types with both N and 7-16 connectors. Band specific and broadband versions are available. Prices: dependent on product configuration and quantities ordered, start at $75 for quarter-wave and $60 for tube type, each.
Spinner North America,
Norcross, GA (770) 263-6326.
Circle No. 236
× Between Series RF Adapters
These between series RF adapters are designed to provide convenient transitions between popular series coaxial connectors. They allow designers to use one type of connection then adapt to other interface types. This gives designers the ability to use existing equipment interfaces with a variety of cable interfaces. Between series adapters have a wide range of application in medical equipment, instrumentation, and test and measurement equipment.
Tyco Electronics Corp.,
Harrisburg, PA (717) 592-2409.
Circle No. 240
× Triaxial Connectors
This full line of triaxial connectors are designed for applications requiring the removal of noise radiation or cross-talk, and improvement of the signal-to-noise ration over standard coaxial cabling systems. They are designed for triaxial cables which are essentially coaxial with an added outer shield that lowers ground loop interference and eliminates radiated noise or cross-talk. The connectors conform to MIL-C-49142 specifications and are ideal for high cross-talk environments such as antenna, radar and broadcast systems. They feature weatherproof construction and can be supplied as plugs, jacks, receptacles, caps and adapters in Triax-C, Triax-N, BNC, TNC and other sizes. Cable attachment methods available include crimp, standard and conical taper clamps. Price: $14.95.
Peabody, MA (800) 262-9878
or (978) 532-0775.
Circle No. 239
× Phase Shifter Dual Tracking Precision Trimmer Capacitors
This model KZ3S expands the company's line of dual tracking precision trimmer capacitors to work in the gigahertz range. The tuning screw of the split stator style adjusts two capacitors at the same rate and the capacitors have one common terminal. This new sapphire dielectric part tunes from 0.3 to 3.0 pF. It is only 0.53" long, can be used to over 2 GHz and can be finely tuned with over 10 full turns. At 250 MHz the Q is over 1500 and working voltage is 4000 V DC. Delivery: 4 weeks.
Circle No. 242
× One-piece Cable Boots
This one-piece boot is available for 4' or 5' OD entry points and over 220 cushion configurations are available to accommodate various sizes, types and combinations of transmission lines. Boot jackets are sold conveniently pre-packaged with cushion inserts and adapter clamps. A one-piece 4' integral boot is also available. Its uniquely integrated parts eliminate the need for cushion insert and facilitate the ease of installation. The boot also has a reduced number of joints that further enhance the product's weather resisting qualities.
Salem, OR (503) 363-9267.
Circle No. 241
× Low Noise Amplifier
The model CHA2194-99F/00 self-biased low noise amplifier is designed to cover the 38 GHz point-to-point and 40 to 44 GHz point-to-multipoint applications into the broadband wireless market. It has a broadband performance over the 36 to 44 GHz band, featuring a low noise figure of 3 dB at 36 to 41 GHz. The amplifier offers gain flatness of ±0.5 dB and a third order intercept point of 20 dBm.
United Monolithic Semiconductors,
Orsay, Cedex, France +33 1 69 33 03 08.
Circle No. 244
× SAW Device
This SAW device uses thin film diamond as a medium for very high velocity surface acoustic waves to reach a frequency range from 2.0 to 3.8 GHz, which is unachievable with Quartz. The device boasts low insertion loss of < 10 dB, high Q of 250 to 1500, superior temperature characteristics (< 150 ppm over 45° to +85°C) and small phase slope. Applications include VCSO, IF filter, clock and data recovery, and W-CDMA pilot signal processing. Size: 3.8 × 3.8 mm.
Sumitomo Electric USA Inc.,
New York, NY (212) 317-7201.
Circle No. 248
× Multi-chip Module Package
The Alpha-2 proprietary multi-chip module packaging technology dramatically reduces the cost of manufacturing high speed and high frequency data communications equipment. It replaces labor- and capital-intensive wire-bonding with the first surface-mounted package specifically designed for high frequency and high speed integrated circuits. The packaging is substantially less expensive, smaller and easier to assemble than traditional chip-and-wire component packaging. Comapatible with standard tape-and-reel manufacturing, Alpha-2 modules are ideal for use in LMDS wireless systems and high speed fiber optic systems.
Woburn, MA (781) 935-5150.
Circle No. 249
× SiGe HBT Direct Quadrature Modulator
The model STQ-2016 Silicon Germanium (SiGe) direct quadrature modulator is operable from 800 to 2500 MHz, covering 2G/3G wireless frequency bands. The part provides carrier feedthrough typically > 40 dBm, with low amplitude and phase error of the modulation inputs (< 0.2 dB (typ) and < 2° (typ), respectively). Output noise floor is > 150 dBm/Hz, and the modulator exhibits high linearity making it ideally suited to 3G applications such as W-CDMA. The device is specified for use with a single 5 V power supply. The STQ-2016 has been designed specifically to address the needs of wireless infrastructure manufacturers who are developing solution for 2G, 3G and other advanced wireless applications.
Stanford Microdevices Inc.,
Circle No. 267
× High Speed Monolithic Analog-to-Digital Converter
The model 9240LPRP 14-bit, 10 MSPS monolithic analog-to-digital converter provides fast data conversion times with improved fidelity, in turn reducing noise and providing more immunity from interference and latchup. It is radiation enhanced up to 100 krad, dependent on orbit, and operates from a single +5 V supply. In addition, the converter dissipates at only 285 mW. The component provides no missing codes, excellent noise reduction, an on-chip sample-and-hold amplifier and programmable voltage reference. The converter is designed using the company's patented Rad-Pak® packaging technology, which protects commercial off-the-shelf components from space radiation.
Space Electronics (SEi),
a part of Maxwell Technologies
Electronic Components Group,
San Diego, CA
Circle No. 247
× Filter Design Software
Version 4.0 of FilterExpress digital filter design software has added a companion simulator called FilterSim. The Windows-based tools provide electronic and communications systems designers with an extremely rapid means of developing and evaluating DSP-based filters of almost any kind, including processor efficient multi-rate designs. The professional quality software is highly intuitive to use. FilterExpress allows designers to create most common filter configurations in minutes. Designs may then be simulated with FilterSim using built-in signal generator facilities or a user's own test data. The numeric precision of the tools is user-programmable to allow filter designs to be optimized for the target DSP hardware. When satisfied with the results, the filter's coefficients may be saved in ASCII format for import into a user's DSP development software. Free downloads area available from www.systolix.dsp.com.
Systolix Inc., Sunol, CA (925) 863-2542.
Circle No. 252
× Low Phase Noise Frequency Synthesizers
The HFS series low phase noise frequency synthesizers are designed for up/down converter mixer local oscillator applications and are ideally suited for use in ISM, GSM, WLL and MMDS/LMDS system transceivers. These products are available as fixed frequency or externally programmable, covering the frequency range (in bands) from 40 MHz to over 8 GHz. Product features include fast switching speeds in step sizes of 50 kHz to 2.5 MHz, typical phase noise characteristics of 95 dBc/Hz at 10 kHz offset, 120 dBc/Hz at 100 kHz offset. The series operates over the 30° to +70°C temperature range. Size: 1.25" × 1.00" × 0.25".
EM Research Inc.,
c/o Sierra Microwave
Citrus Heights, CA (916) 722-4266.
Circle No. 257
× GaN-based Multi-watt Tunable VCO
This multi-watt AlGaN/GaN HEMT-based voltage controlled oscillator (VCO) is implemented using distributed networks and oscillates at 3 GHz with an output power of 2.7 W, efficiency of 27 percent and a supply voltage range of 3.5 to 30 V with 6 percent tuning bandwidth. AlGaN/GaN-based VCOs may be used as high efficiency sources for radio communication applications.
RF Nitro, Charlotte, NC (704) 596-9060.
Circle No. 254
× Low Phase Noise Crystal Controlled Oscillator
The model XOV2000 voltage controlled crystal oscillator features electrical tuning of up to ±10 ppm on a tuning voltage 0 to 10 V DC. Frequency stability vs. temperature is ±5 ppm over 0° to +50°C. The unit has an output power of +13 dBm (min) and a phase noise floor of 165 dBc/Hz at 100 kHz offset. It is available with supply voltages from 12 to 15 V DC standard, with an option for +55 V DC operation. Mounting is via 0.30" diameter PC pins and output frequencies are available from 40 to 125 MHz. Size: 1.0" × 1.0" × 0.5".
Techtrol Cyclonetics Inc.,
New Cumberland, PA (717) 774-2746.
Circle No. 255
× Dual-range Synthesizer
The model 250SX-51 versatile dual-range frequency generator features broad coverage from 1 to 250 MHz and allows 5 to 20 µs switching between any two frequencies with a resolution of 1 Hz. Output is 13 dBm and spurious outputs are 70 dB referenced to +13 dBm. The unit can be optionally supplied with two different frequency standards with moderate or high stability. SSB phase noise is 124 dBc at 10 kHz offset from the carrier. Where even better phase noise is desired the unit can be set to produce output frequencies from 1 to 25 MHz. Spurious output gains are again 70 and output of +13 dBm (into 50 Ω) is available. SSB phase noise at 20 kHz offset is 141 dBc. The unit is available with remote control (BCD or GPIB) and manual controls if desired.
Programmed Test Sources Inc.,
Littleton, MA (978) 486-3400.
Circle No. 259
× Voltage Controlled Oscillator
The model V610ME04 voltage controlled oscillator (VCO) is geared for low cost applications requiring low noise performance while conserving precious energy. It generates frequencies between 1950 and 2150 MHz within 0.5 and 4.5 V DC of control voltage and covers the band with an average sensitivity of 72 MHz/V. This inexpensive device exhibits a spectral signal of 96 dBc/Hz (typ) at 10 kHz from the carrier and is operate over the extended commercial temperature range of 40° to +75°C. This VCO is sure to strengthen any satellite modem due to its 1.1:1 linearity over frequency and temperature and its innovative design allows for quick implementation into phase locked loops where the error voltage can be taken directly from the integrated circuits charge pump circuitry. The V610ME04 operates off a 4.5 V DC source while drawing only 16 mA (typ) and suppresses the second harmonic to better than 15 dBc. In addition, the oscillator provides the user 5 ±2 dBm of output power into a 50 Ω load. Size: 0.50" × 0.50" × 0.22".
San Diego, CA (858) 621-2700.
Circle No. 256
× Commercial PLL
The model PLL400-915 commercial phase locked loop (PLL) generates frequencies from 902 to 928 MHz with a 200 kHz step size. The unit requires 18.5 mA (typ) of current from a 5.0 V supply voltage. Typical phase noise at 100 kHz offset is 131 dBc/Hz and phase detector spurious suppression is 82 dBc (typ). Output power is 3.7 dBm (typ), while second harmonic suppression is 13.3 dBc (typ) and third harmonic suppression is 27 dBc (typ). The unit is housed in a surface-mount, pick and place/reflow compatible package. Size: 0.60" × 0.60" × 0.13".
Vari-L Co. Inc.,
Denver, CO (303) 371-1560.
Circle No. 260
× Bluetooth Test Solutions
This package of Bluetooth test solution is intended for the designers and manufacturers of electronic devices. The new solutions include a stand-alone Bluetooth communication test set, a spectrum analyzer customized for Bluetooth testing and new generator capabilities. The easy-to-operate model E1852A test set tests Bluetooth device functionality and verifies conformance to key specifications over a standard Bluetooth link. The model ESA-E RF spectrum analyzer features a timesaving Bluetooth measurement function that automatically executes Bluetooth transmitter tests. The ESG-D series signal generator now includes expanded Bluetooth receiver test capabilities and simplified bit error rate test set-up. Price: ESA-E spectrum analyzers, $15,300. Bluetooth package, $8,900. E1852A test set, under $18,000. ESG-D signal generator, $16,950.
Agilent Technologies Inc.,
Santa Clara, CA (800) 452-4844 ext. 7307.
Circle No. 261
× Handheld Spectrum Analyzer
The model MS2711A handheld spectrum analyzer provides field engineers and technicians with excellent measurement flexibility in field environments and applications requiring mobility. It features a rugged, lightweight, battery-operated design and enables users to quickly and easily locate, identify, record and solve communication system problems without sacrificing measurement accuracy. Powered by a lightweight NiMH battery, the MS2711A covers the 100 kHz to 3 GHz frequency range and is ideal for cellular, data, paging, PCS, satellite, SMR, wireless, Internet and WLAN/WPBX. Its broad range of functions and narrow resolution bandwidths down to 10 kHz make this unit well-suited for finding the source of interfering signals in modern wireless systems. It features 65 dB dynamic range, ±1.5 dB amplitude accuracy and a full-span noise floor of ¾ 97 dBm. Weight: 4 lb. Price: $7000. Delivery: four to six weeks.
Richardson, TX (800) 267-4878.
Circle No. 262
× Test Set
The IFF-701Ti transponder test set can test both identification friend or foe (IFF) transponders and IFF interrogators. It offers Interrogator Auto Test, which monitors, interrogations, validates interrogation parameters and generates a reply (static or moving target in range and altitude). The test set also allows user control of pass/fail parameters using RS-232 communications ports and provides capability for storing IFF mode 4 coeds for use during transponder testing. KIT/KIR-1A/C or KIV-6 cables are available for testing of IFF mode 4 operation. The IFF-701Ti comes with an extensive built-in test, a two-year limited warranty and features two-hour battery operation plus power management. It is compliant with European CE requirement for safety and EMI. The set is aimed at flight line and bench testing of transponders (modes 1, 2, 3/A, 4, C and S) and interrogators (modes 1, 2, 3/A, 4 and C).
IFR Systems Inc.,
Herts, UK +44 (0) 1438 742200.
Circle No. 263
× Protocol Analyzer
The model BPA100 protocol analyzer incorporates Bluetooth SIG qualified radio, baseband and host stack technology from Digianswer. The instrument offers significant new capabilities for hardware/software integration and design/debug, including packet data error generation, data decryption, real time protocol decoding and display, and sophisticated triggering. The instrument captures all baseband packets transmitted within a piconet and displays packet payload, status information such as access errors, estimated clock and hop frequency. In addition, the data can be displayed at higher protocol levels such as LMP, L2CAP, RFCOMM and SDP.
Circle No. 265
× BNC Center Pin Depth Gauge
The model 010-0158 BNC center pin depth gauge is a precision dial gauge that meets the requirements set forth by the telecommunications industry for the proper installations of BNC connectors. The gauge measures the pin depth of a BNC plug center pin in relation to the BNC's reference plans as per MIL-C-39012. The measurement is calibrated before each use with a precision reference plug, which is included with the gauge.
Westlake Village, CA
Circle No. 266