- Buyers Guide
High Q, Low Insertion Loss Cavity
The model WSD-00216 high Q, low insertion loss cavity duplexer is designed for China Uni- com's CDMA IS95 and 2001X market. It allows the server to operate over a receive band of 824 to 834 MHz and a transmit band of 869 to 879 MHz. The duplexer demonstrates an insertion loss typically < 1.0 dB over the receive and transmit bands and has a co-channel rejection of > 90 dB. The electrical performance is guaranteed to operate over a temperature range of 0° to +60°C with a power rating of 100 W average and 1500 W peak.
K&L Microwave Inc.,
Salisbury, MD (410) 749-2424.
Circle No. 216
2 to 40 GHz Mixer
The model M2-0240 mixer covers 2 to 40 GHz with a 0.005 to 6.000 GHz IF. Designed for wideband applications requiring a very broadband IF, the mixer is a unique triple-balanced design, available in a 2.92 mm connectorized outline. Local oscillator drive levels are +14 to +17 dBm. Typical conversion loss is 14 dB, with a typical LO to RF isolation of 30 dB.
Marki Microwave Inc.,
Morgan Hill, CA (408) 778-4200.
Circle No. 217
12-way Power Divider/Combiners
These two 12-way Wilkinson power divider/ combiners are designed to specifically cover systems applications in cellular, GSM, PCS and ISM bands. These units are true 12-way designs providing high isolation and excellent phase and amplitude balance between all ports. The model 812-2-0.900-M01 (SMA-Female, 0.8 to 1.0 GHz) is ideally suited for high performance applications with outstanding isolation of 45 dB, SWR of 1.1 and insertion loss of 0.8 dB. The model 812-2-2.100 (SMA-Female, 1.5 to 2.7 GHz) offers specifications including isolation of 25 dB, SWR of 1.15 and insertion loss of 1.0 dB. All models are equipped with stainless steel SMA-female connectors, gold-plated copper contact pins, virgin electrical grade PTFE insulation within the connectors and a rugged aluminum housing for superior shielding of the divider circuitry. These units are rated to operate from -55° to +70°C and handle 20 W total RF power into load SWR of 1.2 or better.
MECA Electronics Inc.,
Denville, NJ (973) 625-0661.
Circle No. 218
50 Ω Splitters
These two- and four-way 50 Ω splitters cover many needs in the 500 to 5000 MHz frequency range. Although super broadband, these units provide high 22 dB (typ) isolation, low 0.9 dB (typ) insertion loss and can handle up to 10 W input power. These two-way (model ZN2PD2-50) and four-way (model ZN4PD1-50) splitters are ideal for lab and production set-up needs. Price: $74.95 (1 to 9).
Brooklyn, NY (718) 934-4500.
Circle No. 219
10 W Surface-mount Power Dividers
Models PB10 to PB14 supply 20 to 25 percent bandwidths centered at 0.90, 1.45, 2.50 and 3.40 GHz. Minimum isolation is 18 dB for all models and maximum insertion loss is 0.6 dB for the lower frequency units and 0.8 dB for the higher frequency units. This product line increases the power handling of the PB2, PB4 and PB5 models that can handle 1 W input power levels. Size: 0.38" x 0.50" x 0.09".
Pulsar Microwave Corp.,
Clifton, NJ (800) 752-2982.
Circle No. 220
Matching the SMA in line size, the ZMA connector provides easy quarter turn hand mating as opposed to torquing and lockwiring. The ZMA is ideal for microwave applications involving location and space constraints along with high vibration. A lug coupling latching mechanism provides superior mechanical stability. The connector is also well designed for locations where blindmating is desired, but space is not available.
West Palm Beach, FL (561) 840-1800.
Circle No. 221
40 GHz Coaxial Terminations
This high performance, cost-effective design offers DC to 40 GHz operation with power han- dling to 2 W and SWR of 1.10 to 1.15. Other features include subminiature lightweight size, low SWR design option and rugged construction.
Frederick, MD (800) 638-2048 or (301) 846-9222.
Circle No. 245
This series of high power EIA connectors is designed for flexible braided cable, to simplify routing and eliminate the need for rigid line. Available as straight and right angle plugs, receptacles and adapters in 7/8" and 1 5/8" line sizes, they are suitable for high power applications up to 10,000 W. Featuring silver-plated beryllium-copper inner conductors with Teflon® dielectrics, and brass and nickel- or silver-plated bodies. The connectors provide 50 Ω impedance, handle 6000 V, operate at frequencies from DC to 6000 MHz and have a 1.15 SWR. Price: $85.
Peabody, MA (800) 262-9878 or (978) 532-0775.
Circle No. 222
Adjustable Threshold Detector Log Amplifier
The model TA-SDLVA-0120-70 option 105F adjustable threshold detector log amplifier operates from 1.3 to 1.7 GHz and is designed using cutting-edge GaAs technology, which provides good performance and reliability in a compact package. TSS is -60 dBm (min) with a logging range of -60 to +5 dBm. Input SWR is 1.8 (max) at -23 dBm. Size: 3.75" x 1.50" x 0.50".
Planar Monolithics Industries,
Frederick, MD (301) 631-1579.
Circle No. 225
The model DC10000H24G20 low drift microwave amplifier is geared for fiber optics and ECM among other uses. It is built domestically on an automated SMT line for volume production, reproducibility and reliability. This amplifier permits RZ or NRZ data formats and the building of both analog and digital ultra wide band systems.
B & H Electronics Corp.,
Monroe, NY (845) 782-5000.
Circle No. 223
The model 110 in-building amplifier provides amplification of both uplink and downlink wireless signals in facilities located within reasonable proximity of cell sites and where wireless coverage is otherwise non-existent. It is designed to provide wireless coverage in small facilities with less than 10,000 square feet of required coverage area. Typical facilities include offices, small warehouses, homes, basements and other shielded structures. Size: 4.0" x 3.5" x 1.2". Weight: 1 lb.
Cellular Specialties Inc.,
Manchester, NH (877) 844-4274.
Circle No. 224
Fiber-optic Transimpedance Amplifier
This line of fiber-optic transimpendace amplifiers (TIA) is designed for use in 10/12.5G telecom and 10 Gb Ethernet transceiver products. The model SFT-0100 is a high performance, low noise InGaP TIA ideally suited suited to 10/12.5G telecom applications with a transimpedance of > 2200 Ω, 3 dB bandwidth > 11.5 GHz, optical overload of 2.5 mA peak-to-peak and optical sensitivity of better than -18.5 dBm. The model SFT-5100 TIA utilizes SiGe technology and produces a transimpedance of > 2200 Ω and a 3 dB bandwidth > 8.5 GHz. Price: $9.95 (100,000).
Sirenza Microdevices Inc.,
Sunnyvale, CA (408) 616-5400.
Circle No. 226
The models 703748 and 703749 are the newest additions to the company's series of Covant embedded antennas. They are used in Wi-Fi, 802.11x, wireless LAN and PCMCIA laptop computer applications. The antennas feature high radiation efficiency, broad beamwidth and standard form factor. The model 703748 supports a 5.15 to 5.35, 5.8 GHz frequency range and the model 703749 supports a 2.4 to 2.485 GHz frequency range. Both have an SWR of 2.0 (max), impedance at 50 Ω and linear polarization.
TECOM Industries Inc., a TRAK Communications company,
Thousand Oaks, CA (805) 267-0100.
Circle No. 246
The model MCD2400PT diversity antenna is an addition to the company's Michelangelo™ line of wireless in-building antennas. It provides the coverage of two omnidirectional antennas within a single low profile housing. Covering frequencies from 2400 to 2485 MHz, this antenna provides 2.5 dBi gain with an SWR of less than 1.5 and an isolation between two elements of more than 20 dB. The result is maximum coverage and outstanding performance for in-building wireless LAN networks. The MCD2400PT is designed to facilitate installation. It features a dual stud ceiling mount with 12" pigtails that can be terminated with various types of connector options.
Hanover Park, IL (800) 323-9122.
Circle No. 229
2.4 GHz Antenna
The RCT 1/2 wave 2.4 GHz antenna delivers outstanding performance and maximum orien- tation flexibility in a compact physical package. The antenna's innovative, articulating base allows the antenna to tilt and swivel for optimum orientation. The antenna mounts quickly via a Part 15 compliant RP-SMA connector. RCT antennas are available from stock and are available in volume OEM quantities. Price: from $4.84.
Grants Pass, OR (800) 489-1634.
Circle No. 227
C-band Flat Plate Array
The model 0101 high gain, lightweight C-band antenna was designed for use in datalink appli- cations. This low profile flat plate array features 23 dBi (min) and operates over the 5.25 to 5.85 GHz frequency range. Size: 13" x 13".
Seavey Engineering Associates Inc.,
Pembroke, MA (781) 829-4740.
Circle No. 231
This omnidirectional antenna with amplified GPS patch for cell site use operates at the GSM 824 to 960 MHz, DCS 1700 to 2000 MHz and GSP 1575.2 MHz bands. The antenna was designed to provide cell site upgrade capability to address E911 caller location regulations. PCS and CDMA frequencies are also covered within the design bands. Operating temperature is -35° to +70°C and input connectors are type N female. Size: 12.00" x 5.90".
Compel Electronics Inc.,
Ashland, MA (508) 881-9293.
Circle No. 228
Multipoint CPE Product
This multipoint CPE product offers the service provider an increasingly profitable business case by pushing the cost structure to the lowest point. This is accomplished with a fully integrated 3.5 GHz customer premise outdoor unit, incorporating the transceiver, antenna and radome (with integral diplexer) into a single, attractive, easily installable package. Supporting super-cell and multi-cell sectorized architecture, its high output power and linearity allow service providers to offer reliable full service capability for subscribers even at the fringes of their service cell. Performance supports both QPSK and QAM modulations in both directions, allowing for quick penetrations with a defined upgrade path, without requiring a return visit to a subscriber's location for equipment upgrade.
Signal Technology Corp. - Wireless Group, Beverly Operation,
Beverly, MA (978) 524-7468.
Circle No. 232
2.45/5.2 GHz Dual-mode Chip Antenna
This 2.45/5.2 GHz dual-mode chip antenna meets both the 802.11b and 802.11a require- ments for high speed data communication via wireless links. It is based on the latest high frequency ceramic materials, and is easily capable of achieving resonance at frequencies as high as 10 GHz. The antenna, with its standard SMT form factor, also offers important advantages such as small size, low mass and is built in 50 Ω impedance matching over external antennas. The antenna is manufactured using low temperature co-fired ceramic.
Phycomp, a part of Yageo Corp.,
Addison, TX (214) 561-2033.
Circle No. 230
RF Transceiver Chipset
These 1.8 to 2.7 GHz RF transceiver building blocks operate from supply voltages as low as 1.8 up to 2.5 V. The chipset consists of three ICs: a receiver front end, a quadrature IF demodulator, and a direct IQ modulator with mixer. These RF building blocks provide a degree of design flexibility that allows a wide range of 802.11b compliant and non-compliant 802.11 systems in the unlicensed 2.4 GHz ISM band, as well as WLAN, WLL and PC card modems. The low voltage operation reduces RF power consumption and the size of the power supply by eliminating the need for a DC/DC converter and/or an additional battery. The 1.8 V operating capability aligns with the core voltage supply requirements of system logic ICs such as the baseband processor, DSP and FPGA. Applications include wireless LAN, wireless local loop, wireless security systems, and wireless telemetry systems for industrial or other commercial applications.
Linear Technology Corp.,
Milpitas, CA (408) 432-1900.
Circle No. 234
Downconverter Receiver IC
The model HMC421QS16 high linearity downconverter receiver IC is designed to sup port WCDMA applications where a high third-order intercept (OIP3) point is required. A passive mixer coupled with a high dynamic range IF amplifier achieves an OIP3 of +29 dBm and an input IP3 of +19 dBm. It provides a gain of 8 dB and 10 dB typical single sideband noise. This design requires no external baluns and minimal off chip components. The IC is ideal for usage in MMDS, WLL, WLAN and cellular infrastructure applications.
Hittite Microwave Corp.,
Chelmsford, MA (978) 250-3343.
Circle No. 233
The model MUX-PO9824 three-stage, 7.5 to 30.0 GHz monolithic frequency multiplier and buffer amplifier is designed for good input frequency rejection and low power consumption. It is available in chip form. Main characteristics include an output frequency range of 25 to 33 GHz, an input power level of +12 dBm, output power level for +12 dBm input is +12 dBm. Bias is 3.5 V, 75 mA.
United Monolithic Semiconductors,
Cedex, France 01 69 33 03 35.
Circle No. 247
This machine is designed for precise, repetitive bending of semi-rigid cable. The bend radius can be changed during bending and it allows the cable to be bent rapidly by using low cost, hard stop templates. The bender produces a perfectly dimensioned cable each time. Units can be equipped with digital read-outs or standard scales. Production templates are easy to generate from prototype configurations.
Florida RS Technology,
Palm City, FL (772) 221-8188.
Circle No. 235
Modeling Software FEMLAB version 2.3 features new releases of the structural mechanics module, the chemical engineering module and the electromagnetics module. It supplies new technology for modeling and simulation in all science and engineering fields by introducing a set of new solvers for parametric analysis, modeling of large vector field models in electromagnetics and structural mechanics as well as transport progress in chemical engineering. It also introduces new eigenvalue solvers for large models in eigenfrequency and eigenmode analyses.
Oxford, UK 01865 338036.
Circle No. 236
3D EM Simulation Software
CST Microwave Studio® version 4 boasts over 1200 new features, options and improvements which have been implemented since the last release. Among version 4's innovations and improvements are a thin sheet technique (TST), faster optimization based on a new algorithm, frequency dependent and ferrite materials, selective and simultaneous excitation of ports and modes, template assisted problem definition, enhanced EMC capabilities, advanced de-embedding and full symmetry detection. This version of the 3D EM simulation software increases its meshing flexibility accommodating even larger structures with exceptionally thin metal with an even faster simulation time. Version 4 has an enhanced materials feature, accommodating broadband simulation with frequency dependent materials. Other advances include an even more modern interface with more feedback during the simulation process, visualized boundary conditions, symmetry planes and plane wave excitations.
CST of America Inc.,
Wellesley, MA (781) 416-2782.
Circle No. 237
The model F4500 series crystal oscillator offers an input voltage of 1.8 V ±5 percent, with an operating voltage as low as 1.6 V. The series also provides greater efficiency both in system design and in the operation of the oscillator. Greater system efficiency is achieved through the oscillator's direct connection to the system's processor, which eliminates the extra circuitry previously needed to match the processor's voltage to the oscillator's voltage. The F4500 series is ideal for low current, battery-operated applications including wireless LANs, handheld computers, such as PDAs and other portable applications. The oscillator has a frequency range of 30 to 70 MHz and a maximum input current of 15 mA. Size: 5.0 x 7.5 mm. Price: 85¢ (50,000). Delivery: eight weeks (ARO).
Fort Myers, FL (888) 438-2369.
Circle No. 239
The model E2747 miniature temperature compensated crystal oscillator (TCXO) is designed to provide the holdover frequency signal for Semtech's single-chip ACS5810 SETS device for use within SDH/ SONET transmission equipment. The TCXO can provide the requisite Stratum 3 frequency stability through use of its compact analog temperature compensation IC. It runs from a 3.3 V supply with a typical current consumption of 2.5 mA, 4 mA (max). Due to its compact design, the temperature sensor and quartz crystal within the E2747 are closely coupled, enhancing the dynamic frequency stability greatly. This gives it wander characteristics comparable to an OCXO. Size: 7 x 5 mm.
C-MAC MicroTechnology, a Solectron company,
Durham, NC (919) 941-0430.
Circle No. 238
Voltage Controlled SAW Oscillator
The M650 series voltage controlled SAW oscillator is designed and developed specifically for clock smoothing and frequency translation applications in telecommunications. This VCO utilizes a SAW resonator internally, which provides good jitter performance over a -40° to +85°C temperature range. The resonator is a high Q device that operates at the fundamental frequency of the end unit, thus enabling this kind of performance. Other features include a 3.3 V operation and output frequencies from 155 to 900 MHz. Size: 9" x 14".
Micro Networks, an Integrated Circuit Systems company,
Worcester, MA (508) 852-5400.
Circle No. 241
Phase-locked Loop Module
The model PBA1560A phase-locked loop (PLL) module is designed for CATV headend equipment. It utilizes chip scale packaging technology to realize a frequency range of 1173 to 1943 MHz with a step size of 1000 kHz. It offers a phase noise specification of -96 dBc at 10 kHz offset and -120 dBc at 100 kHz offset or, equivalently, a RMS phase error of 2.1° integrated over 100 Hz to 100 kHz. This technology and module frees a circuit designer from having to characterize critical loop filter parameters and replaces dozens of components with a single, high performance module covering a broad spectrum of bandwidth. Size: 0.90" x 0.60" x 0.14".
San Diego, CA (858) 621-2700.
Circle No. 249
The DFA S1-LHZ series of high stability miniature temperature compensated crystal oscillators (TCXOs) offer up to Stratum 3 stability for SDH/SONET telecommunications systems. The SMD package implements a temperature compensation ASIC and offers full Stratum 3 holdover mode compliance (±0.37 ppm/24 hours) from 0° to 70°C up to 13 MHz and from 0° to 50°C up to 20 MHz. It also features ±4.6 ppm/15 years overall stability. Standard frequencies include 1.544, 2.048, 12.800, 19.440 and 20.000 MHz, although others can be specified.
Fordahl USA Inc.,
Gainesville, GA (770) 888-0104.
Circle No. 248
The DualQor™ series dual output voltage, industry standard quarter-brick sized isolated DC/DC converter is capable of delivering up to 60 W of total power at +12 V and -12 V, without the need for an attached heatsink. The converter module employs synchronous rectification and a patented topology to achieve efficiencies up to 92 percent. The DualQor converter has a 48 V nominal input (35 to 75 V range) and meets input voltage transient requirements up to 100 V for 100 ms. The units can deliver up to 5 A at ±12 Vout for a total of 60 W of output power. Size: 1.45" x 2.30" x 0.43".
Hudson, MA (888) 567-9596.
Circle No. 250
Telecom Distribution Module
The model 6520A telecom distribution module is a 12 channel distribution amplifier packaged in a 1U rack mount chassis. It is comprised of 12 low phase noise amplifiers that maintain high channel isolation (> 60 dB). Up to four units can be daisy chained together to give up to 48 outputs to give almost infinite expansion capability with virtually no signal degradation. The 6520A standard configuration takes a single telecom clock signal, either T1 or E1, and provides 12 buffered T1 or E1 outputs. Each output and input has an alarm indicator that warns of either a loss of signal or a signal of insufficient amplitude. This unit is ideal for manufacturers who need to distribute high quality telecom reference signals to multiple locations.
Datum-Timing, Test and Measurement,
Beverly, MA (978) 927-8220.
Circle No. 240
The model FX-700 crystal-based frequency translator provides good jitter performance, high output frequencies and small package size. Out- put frequency ranges from 1 kHz to 77.76 MHz, with a supply voltage that can be either 3.3 or 5.0 V. The device is hermetically sealed in a 16 pad ceramic SMD package. The products custom ASIC technology results in a small, highly robust, reliable and predictable device, providing a flexible option when board real estate is an issue. The FX-700 is ideal for various applications in SONET/SDH/ATM, WDM, digital cross connect, DSLAM, DSLAR, access nodes, cable modem head ends and GSM and CDMA base stations. Size: 5.0 x 7.5 x 2.0 mm.
Norwalk, CT (888) 328-7661.
Circle No. 242
Automated Parametric Test System
The model S600DC/RF automated parametric test (APT) system is designed for integrated DC and RF wafer measurements. It is a single- insertion DC/RF parametric test solution for probing communications and high speed digital devices at the wafer level. When used with a suitable test structure layout, the system can execute the independent DC and RF tests in parallel on separate probes, greatly reducing the time and cost of testing on advanced devices. This system incorporates vector network analyzer and DC/RF probe card technology, supports "lights out" factory automation, and is compatible with both 200 and 300 mm probers. It allows single DUT testing up to 10 GHz at rates up to 10 times faster than typical rack-and-stack systems using separate DC and RF test operations. Also, RF connections embedded on the test head and per-pin electronics eliminate manual setup and supply unequaled precision and repeatability. The probe card loads in the same way that it does for DC operation and the system's RF capabilities can be accessed through a transparent interface, allowing greater ease of use.
Keithley Instruments Inc.,
Cleveland, OH (440) 248-0400.
Circle No. 244
Shielding Effectiveness Test Fixture
The model EM-2107A shielding effectiveness test fixture is designed for evaluation of the electromagnetic shielding effectiveness of planar material. The fixture is an enlarged section of coaxial transmission line and complies fully with the requirements of ASTM test method D4935-1. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred. The EM-2107A is provided with a reference standard test specimen, a dynamic range specimen and a convenient support stand. Dynamic range of greater than 80 dB is achievable, although the limiting factors are usually established by the cables and other test system components.
Johnstown, NY (518) 762-2600.
Circle No. 243