COMPONENTS
* Surface-mount Voltage Variable Attenuator
The model AV850M2-A2 18 to 40 GHz broadband millimeter-wave voltage variable attenua tor (VVA) offers 33 dB attenuation range and low insertion loss. It is designed for use in millimeter-wave communications and sensor systems as a variable attenuation stage in the receiver or transmitter chain when wide dynamic range and high linearity are required. In addition, the attenuator is ideal for high volume millimeter-wave applications such as point-to-point and point-to-multipoint wireless communications systems. The rugged, robust packaging provides excellent electrical performance and a high degree of environmental protection for long-term reliability. Price: $14.13 (10,000).
Alpha Industries,
Woburn, MA (781) 935-5150.
Circle No. 216
* Solid State Transfer Switch
The model SWN-218-TRA Options 160M, LVT10MV, PAM solid state transfer switch works from DC to 3 GHz (usable to 4 GHz) with insertion loss of < 0.8 dB at 40 MHz and < 1.5 dB at 3 GHz. Switching speed is < 10 ns ON and < 10 ns OFF. Video transient is ¾ 37 mV peak to peak at 300 MHz and ¾ 5 mV peak to peak at 20 MHz. Isolation is >= 70 dB at 40 MHz and >= 40 dB at 3 GHz. Phase and amplitude are matched to within ±0.1 dB and ±4°, respectively, between port to port from 40 MHz to 3 GHz. SWR is 1.6 (typ), power supply is 5 V DC at 2.6 mA, with other supply voltages available. Weight: 2.5 oz. Size: 1.50" * 1.50" * 0.75".
American Microwave Corp.,
Frederick, MD (301) 662-4700.
Circle No. 217
* Low Loss Porcelain RF/Microwave Capacitors
The AQ series of low loss porcelain capacitors is designed for RF/microwave applications ranging from 10 MHz to 4.2 GHz, and includes an 0603 size chip for space-constrained applications. These capacitors are characterized by a fine grain, high density, high purity dielectric material, which is impervious to moisture and features internal palladium electrodes. The AQ series is ideal for applications in the microwave range requiring high current carrying capabilities, low ESR, high series resonance and stability under the stress of changing voltage, frequency and temperature. They feature capacitance values from 0.1 to 5100 pF, rated voltage is from 50 to 500 V DC, with a temperature coefficient of 90 ±20 ppm/°C or 0 ±30 ppm/°C. Operating temperature is 55° to +125°C.
AVX Corp.,
Myrtle Beach, SC (843) 946-0414.
Circle No. 218
* High Power Coupler
The model 100-AC-FFN-20 100 W coupler features a frequency range of 800 to 2500 MHz, coupling at 20 dB and 20 dB (min) directivity making it ideal for cellular and PCS applications. Insertion loss of 0.25 dB (excluding power coupler) and 0.3 dB thruline. SWR is 1.15 (max) for the primary and secondary line, while frequency sensitivity is ±1.0 dB (max), and reflected power depends on the external load used. The operating temperature is up to 105°C. Weight: approximately 8 oz. Price: $175 (1 to 10). Delivery: four weeks (ARO).
Bird Components Products (BCP),
Largo, FL (727) 547-8826.
Circle No. 219
* Six-way Broadband Wilkinson Power Divider/Combiner
The model P6W-10-1 six-way broadband Wilkinson power divider/combiner was specifically developed to meet industry demands for greater performance in the company's integrated assemblies. The device offers a multi-octave bandwidth and high reliability to meet stringent requirements for test equipment. It is designed to cover present and future wireless frequency ranges, offers excellent RF performance and has very low IM properties (100 dBc). It operates over a 0.8 to 4.0 GHz frequency range, with insertion loss of 1.45 dB (max), isolation of 18 dB (typ) and amplitude balance of 0.5 dB (max).
Dow-Key Microwave Corp.,
Ventura, CA (805) 650-0260.
Circle No. 221
* High Responsivity 10 Gbps Optical Receiver
The model R402HR low noise PIN+TIA optical receiver has a conversion gain of 475 V/W (at 1550 nm). This fiber-optic pigtailed component serves the standard OC-192/STM-64 telecommunications market with sensitivity of 20 dBm and bandwidth of 30 kHz to 8 GHz. Featuring low ripple, low group delay and low electrical return loss, the device provides designers of telecommunications systems with the signal level needed for driving filter, AGC or limiting amplifier stages. With a circuit board footprint of 13 * 18 mm, it saves considerable space over discrete photodiode and amplifier models.
Discovery Semiconductors Inc.,
Princeton Junction, NJ (609) 275-0011.
Circle No. 220
* High Performance Coaxial Cable
The model RG393 IMAX high performance coaxial cable has a stranded silver-plated copper center conductor, solid PTFE dielectric, two silver plated copper braids and an FEP jacket. The cable is manufactured with great consideration given to performance over the intermediate frequencies from 400 MHz to 3 GHz. It is swept for SWR with improved performance and attenuation is lower than maximum levels allowed in the MIL-C-17 specification.
Harbour Industries,
Shelburne, VT (802) 985-3311.
Circle No. 222
* Wire Matrix
The model 10046 wire matrix operates over the DC to 5 MHz frequency range and routes multiwire buses such as RS-232C. Poles are switched in groups of 25 with bi-directional control programming and remote control programming. It has solid state contacts and features RS-232C and IEEE-468 interfaces. Typical switching applications include RS-232C serial data lines, IEEE-4888 parallel data lines, modem to computer data lines, twisted pair for Kelvin measurements in ATE, audio intercom switching and computer to peripheral switching. Size: 8.75" * 19.00" * 17.00".
Matrix Systems Corp.,
Calabasas, CA (818) 222-2301.
Circle No. 224
* Unequal Power Splitter
The model DG-54FN unequal way power splitter is designed to split a signal between two outputs in a 4:1 ratio, covering all frequencies from 800 to 2200 MHz. In addition, unlike directional couplers and capacitively coupled devices, it also provides DC continuity to both outputs. This allows the powering of remote amplifiers without additional wiring and systems using antennas and Leaky-Line, where low loss and complete reliability are essential. An input SWR of less than 1.25, passive intermodulation below 140 dBc and insertion loss below 0.1 dB will appeal to system designers trying to meet tough performance criteria. When compared to most conventional power dividers, the DG-54FN is more ruggedly constructed, has no resistors to burn out and reflects less power back to the transmitter. The shape allows simple attachment to pole or wall using the clip provided, and the hex-style N connectors allow consistent tightening to a specified torque.
Microlab/FXR,
Livingston, NJ (973) 992-7700.
Circle No. 267
* Low Cost Termination
The model 50T-19 covers a frequency range of DC to 2000 MHz and has a SWR of 1.2 (min). This unit will handle 1 W (average) power at 25°C and 1000 W peak. The operating temperature range is 20° to +100°C. It is available with BNC male RF connectors.
JFW Industries Inc.,
Indianapolis, Indiana (877) 887-4539
or (317) 887-1340.
Circle No. 223
* High Power Two-way Splitter
The model ZAPD-20 10 W power splitter is designed to split a signal two ways with 0° in the 700 to 2000 MHz frequency range. Band wide, insertion loss is very low, 0.3 dB (typ, above 3 dB) and isolation is excellent at 30 dB (typ), while maximum amplitude and phase unbalance is 0.4 dB and 3°, respectively. This 50 ‡ coaxial unit is housed in a tough metal case equipped with SMA-female connectors. Price: $59.95 (1 to 9).
Mini-Circuits,
Brooklyn, NY (718) 934-4500.
Circle No. 225
* Low Cost, Type-N Directional Coupler
The model 3151 low cost, type-N directional coupler for PCS and cellular applications offers high directivity and extremely low intermodulation. It is available in 10, 20 and 30 dB coupling values and offers exceptionally low insertion loss. Price: $89. Delivery: stock.
Narda,
an L-3 Communications company, Hauppauge, NY, (631) 231-1700.
Circle No. 226
* Adaptive Differential Pulse Code Modulation Codec
The model ML7029 single-rail adaptive differential pulse code modulation (ADPCM) codec is designed to serve high volume, cordless phone and wireless local loop handset applications. It is a good fit for this market segment as it allows design engineers to partition for optimal cost without sacrificing value-added functionality while maximizing battery life. The ML7029 operates from a 3 V power supply, complies with ITU-T G.711 and G. 726 with parametrically specified enhanced frequency sampling rates of 16 and 21 kHz. The codec is available in a 30-pin plastic SSOP with tight 0.65 mm pin pitch. Price: $2.80 (100,000).
Oki Semiconductor,
Sunnyvale, CA (408) 737-6347.
Circle No. 227
* Band Reject Filter
The model MR143DD multi-octave band reject filter consists of eight stages covering the frequency range of 2 to 8 GHz. At 2 GHz, the 30 dB rejection bandwidth is 9 MHz, at 5 GHz the 50 dB rejection bandwidth is 20 MHz and at 8 GHz the 60 dB rejection bandwidth is 30 MHz. The out of band insertion loss is 1.5 dB (typ) and the tuning sensitivity is 24 MHz/mA (typ). The unit is integrated with a 12 bit digital driver to tune the full frequency range. The operating temperature is 54° to +85°C and the filter is built to MIL-E-5400 specifications. Size: 1.7" * 1.7" * 1.7".
Omniyig Inc.,
Santa Clara, CA (408) 988-0843.
Circle No. 228
* Specialized Interface Adapters and Connectors
This line of specialized interface adapters and connectors were developed in response to requirements of FCC Part 15.203 and comply in three ways: reverse polarity, or gender; reverse, or left-handed threads; and the use of metric rather than Unified Standard threads. The RT-1227, TNC Male to TNC Female right-angle adapter, is one of these compliant parts. It features left-hand, or reversed, threads at both ends; nickel-plated body; gold-plated contact and pin; and Teflon industries.
RF Connectors, a division of RF Industries, San Diego, CA (800) 233-1728 or (858) 549-6340.
Circle No. 229
* Surface-mount Toroidal-core Compensated Chokes
These surface-mount toroidal-core transformers come in a pick-and-placeable liquid crystal polymer plastic housing, are suitable for reflow and vapor phase soldering, and are supplied on carrier-and-reel. The series is characterized as current compensated chokes with inductance values from 11 to 4700 µH, but RF or pulse transformer models can be provided. The chokes operate from 40° to 125°C, and are well suited for applications such as EMI isolation in switching power supplies and other filtering requirements. Price: $1.43 (5000, for models with inductance values up to 470 µH), $1.53 (5000, for higher inductance values). Delivery: 10 to 12 weeks.
Sprague-Goodman Electronics Inc., Westbury, NY (516) 334-8700.
Circle No. 230
* Directional Coupler
The model CPL/17BE-08S7 directional coupler can be used to monitor or match power, establish branch signals, feedback or signal sampling. The device has good phase inversion with respect to input and low insertion loss at 1.0 dB (max). In addition, the coupler has directivity of 12 dB (min) at 4 to 740 MHz and 8 dB at 750 to 1000 MHz, return loss of 16 dB (min), impedance of 75 ‡, and a coupling flatness above 8.2 dB. Size: 0.30" * 0.31".
TRAK Microwave Corp.,
Tampa, FL (813) 901-7200.
Circle No. 231
* Military Filter and Input Attenuator Module
The military filter and input attenuator module (M-FIAM) is a modular, DC input front-end providing transient protection, inrush current limiting and EMI filtering in a single, miniature package. The M-FIAM enables designers to meet the conducted emissions requirements of MIL-STD-461E, the transient requirements of MIL-STD-704E and the environmental test requirements of MIL-STD-810. It also protects system hardware from potentially damaging effects of inrush current. The M-FIAM accepts an input voltage of 180 to 375 V DC, and delivers output current up to 3 A. Size: 2.28" * 2.20" * 0.54". Price: $105 (100).
Vicor Corp., Andover, MA (800) 735-6200.
Circle No. 232
* Miniature Diplexer
The model W2446D miniature IMD free diplexer has two standard +43 dBm input test signals and produces < 100 dBm of IMD signals. It offers 60 MHz DCS/UMT bandwidth and insertion loss is 1 dB. Return loss is better than 17 dB and Tx-to-Rx isolation is > 65 dB. Type-N connectors are standard, but SMA connectors are optional for low power applications. The operating temperature is from 40° to +70°C. Size: 1.0" * 2.0" * 5.0".
Wireless Technologies Corp.,
Springdale, AR (501) 750-1046.
Circle No. 233
AMPLIFIERS
* IP Telephony Reverse Path Amplifier
The model ARA3000 reverse path amplifier is targeted specifically for residential gateway and IP telephony applications, and compensates for noisy reverse paths that can plague typical cable systems and allows cable operators to remotely diagnose and isolate noise ingress problems. It is also capable of amplifying signal levels from the house insuring highly reliable upstream data transmission, even over a lossy cable system. Price: $7.75 (1000).
ANADIGICS Inc.,
Warren, NJ (908) 668-5000.
Circle No. 234
* Driver Amplifier
The model CMM3020-BD increased data rate, 30 GHz, driver amplifier is designed for external fiber-optic modulators targeting higher bandwidth applications and data rates greater than 13 Gbps. It gives fiber-optic system designers a unique combination of wideband frequency coverage along with an improved eye diagram, flat response and very low internal jitter. It is a precision PHEMT GaAs MMIC, medium power, +23 dBm amplifier and operates from 30 kHz to 30 GHz with a linear 10 dB gain response. Low internal jitter makes it especially well suited for high speed digital data applications. Output voltage is 7.5 V (typ) peak-to-peak.
Celeritek Inc.,
Santa Clara, CA (408) 986-5060.
Circle No. 235
* 500 W VHF Radio Booster
The model BHE27157-500 VHF radio booster operates over the 20 to 150 MHz frequency range with 500 W (min) of output power. This ruggedized power amplifier is powered from vehicular 22 to 32 V DC power and can operate over the 20° to +55°C temperature range with 100 percent condensing humidity. Output power is measured and controlled remotely, as are the AM and FM automatic level controls. Weight: 150 lb. Size: 12.25" * 19.00" * 26.00".
Comtech PST,
Melville, NY (631) 777-8877.
Circle No. 236
* Tri-band Power Amplifiers
This family of global standard for mobile communications (GSM) power amplifiers (PA) are designed to enable mobile phones that can be used around the world. They operate in the 900, 1800 and 1900 MHz bands, providing a singular solution for all networks using GSM. Also, the PAs process twice as much information as traditional GSM PAs to support emerging data services, such as Internet browsing, online shopping, video messaging and other interactive high bandwidth applications. Size: 9" * 11". Price: $4.85 (10,000).
Conexant Systems Inc.,
Newport Beach, CA (800) 854-8099.
Circle No. 237
ANTENNAS
* Distribution Antenna Interface
The model 50289-DAI distribution antenna interface is designed for frequency bands from FM broadcast (88 to 108 MHz) to PCS (1800 to 2000 MHz). This new interface enables multiple communication devices for radiating systems. The DAI is 100 percent passive, has transmission line filters and type-N connector ports. This advanced interface unit offers the user the capability of providing multiple services including all municipal operations on a single antenna system with the ability to add bands as their system grows. The DAI features a maintenance friendly modular construction in a rugged, field proven NEMA-4 environmental enclosure, requires no AC power and supports power levels up to 50 W per band. The operating temperature is 30° to 60°C. Weight: 120 lb. Size: 36" * 30" * 12".
Aerocomm,
Englewood Cliffs, NJ (201) 227-0066.
Circle No. 238
* Dynamically Reconfigurable Wireless Networks Family of Antennas
The DRWiN™ family of antennas for the wireless communications markets includes the first commercially available electronically scanning antenna. This unique antenna, with the ability to be reconfigured from a very broad 120° beam to a narrow 2° beam that can be scanned across the full sector, enables dramatic increases in network capacity, reliability and noise discrimination. The DRWiN antennas focus all of their power into a smaller volume directed at the selected subscriber to provide higher data rates, greater throughput or longer range. This beam can then be refocused on each subscriber requiring service in any random sequence. It can alternately revert back to broad coverage to acquire subscribers requesting new service. Another benefit of the family is that multiple beams may be operated independently at the same frequency within the same sector.
Paratek Microwave Inc.,
Columbia, MD (443) 259-0140.
Circle No. 239
DEVICE
* GaAs PHEMT
The model MRFG35010 unmatched, 3.5 GHz, 10 W, 12 V, GaAs discrete transistor is designed for broadband wireless access infrastructure applications in the S-band frequency range. It is available in a bolt-down, non-hermetic package suitable for use as a driver stage in a broadband wireless local loop basestation amplifier. Non-hermetic packaging is utilized for cost savings, and the use of a non-hermetic package has been validated by performing a highly accelerated stress and temperature test on bare GaAs die under normal operating voltages. Price: $75.
Motorola SPS Inc.,
Tempe, AZ (480) 413-5383.
Circle No. 240
INTEGRATED CIRCUITS
* 3GPP Solution
The model MS8608A is a single instrument that combines a transmitter tester, power meter and spectrum analyzer for the analysis of 3GPP WCDMA signals. With the ability to perform modulation analysis, and measure code domain power, transmit power, adjacent channel power, occupied bandwidth and spurious emissions, the unit is designed for measuring basestations and mobile and basestation amplifiers at both the research and development and production stages. The MS8608A's transmitter tester covers the 9 kHz to 7.8 GHz frequency band and features an analysis bandwidth of 20 MHz and measures transmit power to an accuracy ±0.4 dB. Adjacent channel power is 68 dBc at 5 MHz offset and 75 dBc at 10 MHz offset. The built-in power meter measures a frequency range of 10 MHz to 3 GHz, and power levels of +40 to 20 dBm. Amplitude measurements can be made down to 60 dBm at ±0.6 dB accuracy. Frequency/modulation measurements are made with 1 percent (typ) modulation accuracy and origin offset accuracy of ±0.5 dB. Code domain analysis is conducted with power measurement accuracy of ±0.1 dB and error measurement accuracy ±0.5 dB. A transmitter power control measurement function allows relative power per slot and Go/No Go evaluation to be made.
Anritsu Co.,
Richardson, TX (800) 267-4878
or (972) 644-1777.
Circle No. 242
* Quadrature Digital Upconverter
The model AD9857 highly integrated 200 Msps 14-bit quadrature digital upconverter (QDUC) features breakthrough functionality and superior dynamic performance for broadband communications and wireless infrastructure applications. The single-chip, mixed-signal QDUC integrates a high speed direct digital synthesizer, 14-bit DAC, digital filter, clock multiplier circuitry and user programmability in an 80-lead LQFP. It accepts complex I/Q input data, upsamples the data, quadrature-modulates the data onto a carrier and outputs a frequency-agile modulated carrier in the analog domain. Superior dynamic performance makes the unit ideal for broadband/cable modem return path modulation and cellular basestations. Generating a DC to 80 MHz digital output from a single 3.3 V supply, its 80 dB narrowband spurious free dynamic range provides the spectral performance needed to upconvert GMSK, CDMA, spread spectrum, OFDM, 256-QAM and any other complex modulation formats. The AD9857 operates over the 40° to +85°C. Price: $15.40 (10,000).
Analog Devices Inc.,
Wilmington, MA (800) 262-5643.
Circle No. 241
* WLAN Chipset
The model AR5000 fast, low powered chipset delivers true radio-on-a-chip (RoC) capabilities and provides the first two-chip, all-CMOS end-to-end solution for next-generation 5 GHz wireless LANs. Operating at speeds up to 72 Mbps, the chipset enables ubiquitous, economical connections in the home and office between devices such as personal computers, printers and access points. It is compliant with the IEEE's new 802.11a 5 GHz wireless LAN standard, and includes an enhanced turbo mode. Price: $35.
Aetheros Communications Inc.,
Sunnyvale, CA (408) 773-5200.
Circle No. 243
* Low Current Downconverter
The model MD59-0049 low cost, highly linear integrated circuit downconverter is designed for use in PCS band RF systems. It integrates an on-board LNA, mixer, LO buffer, RF amplifier and output buffer in a miniature 4 mm MLF package. The unit meets stringent linearity and low current requirements of PCS-band CDMA handsets, as well as the IS-98 CDMA linearity requirements for the US and Korean PCS bands. The MD59-0049 offers continuous control of current and gain by application of a control voltage, which enables the unit to operate over a wide range of input signal power and further minimize current draw and maximize battery life using real time gain control. It operates with an RF output frequency between 1.8 and 2.0 GHz and has a low noise figure of 2.3 dB, very low current draw (20 mA in high gain mode) and an input IP3 of 8 dBm (typ). The device requires an LO signal of only 10 dBm.
M/A-COM, Lowell, MA (800) 366-2266.
Circle No. 244
* High Power Amplifier MMICs
The model TGA1135B and model TGA1172 millimeter-wave, high power amplifier MMIC products cover the 18 to 32 GHz frequency band. Through the use of advanced 0.25-micron gate length PHEMT GaAs production process technology, these devices both provide the smallest available physical size per watt output power and lowest costs per watt of output power in this frequency range. These units provide equipment designers with an efficient, one-watt source of millimeter-wave power for use in wireless communication products such as point-to-point or point-to-multipoint radios, satellite communication earth stations and spacecraft payloads. Frequency bands include the 18, 23 and 26 GHz microwave bands and 24, 28 and 31 GHz LMDS bands, as well as the 18 and 30 GHz Ka-band satellite communications bands. Price: $49 TGA1135B (1000); $50 TGA1172 (1000). Delivery: 12 weeks (ARO).
TriQuint Semiconductor Inc.,
Hillsboro, OR (503) 615-9000.
Circle No. 245
* 77 GHz FS Radar Chipset
The chipset includes two multifunction MMICs: a 19 GHz VCO including a 18 to 38 GHz frequency multiplier and a 13 dBm 77 GHz power amplifier including a 38 to 76 GHz frequency multiplier. The devices have been developed taking into account the industrial and environmental constraints of Automated ACC radar manufacturers. They provide internal self-biasing with only two voltages to apply, +4.5 V and 4.5 V, and are designed for automatic pick and place and wire bonding equipment, thus are less sensible to assembly dispersion. The MMICs operate over 40° to +100°C and are optimized to work together and be an overall cost-effective solution.
United Monolithic Semicondutors (UMS), Orsay, France 33 1 69 33 02 11.
Circle No. 246
MATERIALS
* Thermal Vias
The refined PowerPlug™ technology consists of solid, copper plated via fills used in the fabrication of metallized ceramic substrates, chip carriers and packages. This development allows circuit and package designers to significantly improve the thermal and electrical parameters of microelectronic packages. Thermal resistance as low as 2°C/W can be achieved, expanding maximum operating temperature and power limits. The solid via plugs have high thermal conductivity (200W/CxM) as well as an electrical resistance as low as 0.38 m‡.
Remtec Inc.,
Norwood, MA (781) 762-9191.
Circle No. 247
* Silicone Press Pads
BISCO™ Silicone press pads are designed to be used in the lamination of multilayer printed circuit boards, flexible circuits and liquid crystal display (LCD) modules. These pads offer 25 to 100 times longer life than traditional pads and save time at the press. They consist of a reinforcement layer made of fiberglass cloth that is encased between two layers of calendared silicone rubber. Standard thickness is 1/16" and the material is supplied in widths up to 36". The pads are offered in two grades: BISCO HT-1500 Solid Silicone and BISCO HT-1510 Solid Silicone. The former is a general purpose material that can be used at temperatures of 300° to 350°F and pressures of 250 to 400 psi, while the latter is a high performance material designed for temperatures up to 550°F and pressures of 250 to 400 psi.
Rogers Corp., Rogers, CT, (800) 237-2068.
Circle No. 248
* High Frequency Circuit Material
The ComClad™ HF high frequency circuit material consists of Noryl® plastic material as the base dielectric and has excellent electrical performance for use in microwave and RF applications. It has a dielectric constant of 2.6, a dissipation factor of .0025 and is rated at a continuous operating temperature of 40° to +85°C. The material uses a common plastic as the base dielectric, designers and fabricators can form, mold, bend and even insert-mold it in a plastic injection process. The flexible manufacturing also allows for custom designs of panel size, thickness and copper clad. It is available in standard circuit board panel sizes of 12" * 18" and 18" * 24".
Sheldahl Inc.,
Northfield, MN (507) 663-8477.
Circle No. 249
SOFTWARE
* Design and Simulation Tool
APLAC Version 7.6 design and simulation tool includes a fast RFIC module, which is useful when the designer has to deal with hundreds of active components, along with few passive components. A variety of new and improved semiconductor and passive component models are included as well. In addition, a Simulation Definition Wizard has been added in order to simplify the creation of analysis definitions. Nonlinear simulations can be specified even without any knowledge of APLAC language syntax.
APLAC Solutions Oy,
Helsinki, Finland +358 9 5404 5010.
Circle No. 250
* EM Simulation Software
CST MICROWAVE STUDIO™ Version 2.1 includes over 250 new features, options and improvements which have been implemented over the past six months. The palette of solver modules has also been extended to include a frequency domain solver available as a beta test version. Among the new features are adaptive mesh refinement, SAR calculation, improved import options, extended healing capability, extended dynamic SPIC extraction, surface impedance, plane waves, 2D profile editor, multipin port modes, human data set interface, anisotropic materials, RCS calculation and many new VBA functions and commands.
Computer Simulation Technology (CST), Darmstadt, Germany +49 (0) 6151 7303 0.
Circle No. 251
* Microwave Design Software
Concerto Version 2 combines the universally accepted Finite Difference Time Domain method with a unique conforming mesh technique, and has already proven to be a success converting increasing numbers of customers from the older, slower packages. Version 2 includes a number of new features to increase this package's capabilities in EMC and radar cross sections. In addition, enhancements to its already impressive capabilities in microwave component and antenna design have been incorporated. The new version includes plane wave excitation, enabling the user to define a plane wave and study the reflections and diffractions due to complex objects in its path. The main advantage of this new feature is in EMC simulation, where a plane wave can be directed at a structure from a distance to determine the radiation reaching sensitive pares of the device.
Vector Fields Ltd.,
Kidlington, Oxford, UK
+44 (0) 1865 370151.
Circle No. 252
SOURCES
* SMD Voltage-controlled Crystal Oscillator
The EV series of ceramic surface-mount VCXOs is ideal for applications such as digital subscriber line (DSL), cable modems and ATM/SONET/SDH. It is available for 3.3 or 5 V operation with a frequency range from 1.024 to 52.000 MHz. Features include absolute pull range up to 100 ppm, tri-state function, commercial or industrial temperature range and linearity up to 10 percent. Tube or tape and reel packaging is available. Size: 5.00 * 7.50 * 1.95 mm. Delivery: stock to 12 weeks.
Ecliptek Corp.,
Costa Mesa, CA (800) 325-4783.
Circle No. 253
* Voltage-controlled Oscillator
The model SMV1679A surface-mount, low profile package VCO is designed for demanding wireless locating systems. This compact packaged device has been specially engineered to provide quick integration into PLLs. It will generate frequencies between 1678 and 1680 MHz within a control voltage range of 0 to 3 V DC allowing the error voltage to be taken directly from the ICs charge pump circuitry. Drawing only 6 mA of current from a 2. 7 V DC supply, the unit saves valuable PCB space through its subminiature size. It exhibits spectral purity of 87 dBc/Hz (typ), at 10 kHz from the carrier and is specified to operate over the extended commercial temperature range of 30° to +85°C. Furthermore, this device provides the end user 5 ±2 dBm of output power into a 50 ‡ load and suppresses the second harmonic to better than 9 dBc. Size: 0.3" * 0.3" * 0.8". Price: $15.95.
Z-Communications Inc.,
San Diego, CA (858) 621-2700.
Circle No. 254
SUBSYSTEMS
* Co-channel FM Demodulator
The Platinum III demodulator is a new concept to FM communications whereby two co-channel transmissions can be demodulated simultaneously and separated from each other without distortion, crosstalk or beating. The receiver operates with dual carrier inputs from 20 to 500 MHz and produces the choice of four outputs, the dominant signal, the subdominant signal, the linear addition of the two modulations and the standard FM output. Multipath and quasi-synchronous signals simply add up and improve the reception. Separation starts when one carrier is ±1.0 dB (typ) different from the other. The sub-dominant carrier can be recovered down to 20 dB below the stronger carrier. Power supplies are ±6 V DC at 160 mA. Size: 160 * 100 * 10 mm.
Ampsys Electronics Ltd.,
Paisley, Scotland +44 (0) 141 848 3444.
Circle No. 255
* I/Q Vector Modulators
The 73/74 Series of I/Q vector modulators are designed for today's more demanding system applications. The modulators feature 60 dB dynamic range of attenuation and 360° phase control in three broadbands, covering the 2 to 24 GHz frequency range. The 73-Series offers 12-bit I and Q digital control for high resolution and the 74-Series units offer analog control with comparable RF performance. All models incorporate multiple bi-phase attenuator sections to provide in excess of 60 dB attenuation range at any frequency. They are capable of the full 360° phase range at any attenuation level. The units operate over the 54° to 100°C range. Weight: < 12 oz. Size: 4" * 3" * 1".
General Microwave,
a Herley Industries Inc. company, Farmingdale, NY (631) 630-2000.
Circle No. 256
* AC-DC Switching Power Supplies
The low profile SC150 series of AC-DC switching power supplies is a reliable source of power for computer peripherals, telecommunications, point-of-sale and test and measurement equipment in a package that facilitates multiple sourcing. In addition, thousands of other models are easily configured delivering up to four output voltages of 1.8 to 48 V. Additional flexibility is provided through the low profile height of the unit that enables the SC150 to easily fit in 1U racking applications. The series meets UL1950, CSA950 and EN60950 regulations, and accepts DC inputs from 130 to 360 V. Price: $129 (100).
Lambda, an Invensys company,
San Diego, VA (800) 526-2324.
Circle No. 257
* MMIC LMDS Receiver
The model MM25-6LNA integrated receiver consists of a low noise amplifier, mixer and LO doupler-amp. The RF frequency range is 20 to 30 GHz, the LO frequency range is 10 to 15 GHz at 4 to 0 dBm and the IF range is DC to 5 GHz. SSB noise figure is 3.0 dB (typ), 3.5 dB (max). RF to IF gain is 20 dB (typ), DC bias is +8 to +12 V at 200 mA (max). This receiver can be used for narrowband LMDS or full-band multi-channel radiometer applications.
Spacek Labs Inc.,
Santa Barbara, CA (805) 564-4404.
Circle No. 258
SYSTEM
* Wireless LAN LMDS Solution
The model PPC-10/37000-L basestation for wireless point-to-multipoint LAN connectivity is a 40 GHz wireless building-to-building link for multiple Ethernet LAN connectivity. It is a transparent, software-free wireless transceiver, designed to connect two or more Ethernet LANs. Used in conjunction with the model PPC-10/37000-B LAN-to-LAN bridges, the system provides a true LMDS wireless solution for wide area Ethernet network connectivity. The network will pass all Ethernet-type protocols, including IP, IPX and AppleTalk with full duplex throughput at standard Ethernet 10 Mbps in each direction. The network is much more cost-effective than using equivalent multiple point-to-point links, and easily resolves last mile issues such as prohibitively-priced optical cable installation or bandwidth limitations of copper pairs. The wireless system can be quickly deployed to cost-effectively deliver any kind of traffic, such as data, Internet, voice, video or multimedia services.
ELVA-1 Millimeter-wave Division,
St. Petersburg, Russia
+7 812 325 58 58 ext. 282.
Circle No. 259
TEST EQUIPMENT
* Bellcore SmartRack
The Bellcore SmartRack is a 19" rack that houses the transient generators used to test to Bellcore GR-1089-CORE that permits multiple-phenomena testing with the press of single button. Software and a coupling/decoupling matrix allow series' of tests
to be sequenced and executed without engaging and disengaging the EUT. Other options include configuring the system for ESD testing for Section 2, Section 9 frame, surge and EFT tests. It can be operated from a front panel or remotely from a Windows-based computer. The software operates on Windows 95, 98, 2000 or NT and it generates complete reports.
Amplifier Research (AR),
Souderton, PA (215) 723-8181.
Circle No. 261
* Noise Figure Analysis Tool
The models N8974A and 8975A additions to the NFA series noise figure analyzers simplify measurement set up and improve accuracy. They offer a flexible, intuitive user interface that makes it easy to characterize amplifiers and frequency converting devices. Measuring 6.7 to 36.5 GHz in a single instrument eliminates the need for a separate downconverter, and accurate and repeatable results allow tighter specification of device performance. The N8974A operates over the 10.0 MHz to 6.7 GHz range with noise figure uncertainty of ¾ 0.15 dB, while the N8975A operates from 10 MHz to 26.5 GHz with ¾ 0.15 dB noise figure uncertainty.
Agilent Technologies Ltd.,
Amstelveen, The Netherlands
020 547 7225.
Circle No. 260
* Wireless and Satellite Spectrum Analyzer
The model PSA-86A wireless spectrum analyzer includes the company's proven microprocessor frequency control technology, attractive multifunction backlit LCD and automatic digital frequency lock (DFL). It covers a frequency range between 5 and 7 GHz in spans of 1000MHz (typ), in accordance with option selected and customer specification. The spectrum analyzer with option 001 covers the 5.5 to 6.5 GHz frequency range for economical analysis of satellite uplink band. The model with option 002 covers the 5.1 to 6.1 GHz band for wireless communications. The choice of frequency coverage, amplitude and frequency accuracy, and high sensitivity (95 dBm) of the PSA-86A combined with its low cost make these analyzers an ideal choice where portability and economy are required. Price: $2975. Delivery: stock to 2 weeks.
AVCOM of Virginia Inc.,
Richmond, VA (804) 794-2500.
Circle No. 262
* Test Set for Wireless Amplifier and Digital Radio Test
The model CS2010W virtual test instrument for power amplifier, software-defined digital radio and digital signal encoder applications has memory of 4000 MB, resolution via 14-bit D/As and an excellent dynamic range. It essentially offers three products in one with various functions, which may include multi-carrier, multi-standard signal generation through VSS software, digital IF and IQ transmit and receive with interface capabilities to proprietary back planes. The 2010W is an off-the-shelf solution that offers multi-domain generation and analysis at different levels of functionality to meet different budget and performance requirements.
Celerity Digital Broadband Test,
a division of L-3 Communications, Cupertino, CA (888) 274-5604.
Circle No. 264
* Synthesized In-circuit LCR/ESR Meter
The model 885 lightweight, battery powered, handheld, synthesized in-circuit LCR/ESR meter can be used to test components at frequencies up to 10 kHz. It offers a large variety of measurement parameters such as Z, L, C, DCR, ESR, D, Q and * and a wide range of test conditions including 100 and 120 Hz, 1 and 10 kHz, 1 Vrms, 0.25 Vrms and 0.05 Vrms. It features DC resistance measurement, rechargeable battery/AC power, 0.5 percent basic accuracy, a large, easy-to-read dual LCD display, fully auto/manual selection and very quick response. The model 885 comes complete with instruction manual, battery, SMD surface-mount probe and carry case. Price: $549.
BK Precision Corp.,
Placentia, CA (714) 237-9220.
Circle No. 263
* Transponder Test Set
The model IFF-701Ti transponder test set responds to the military's need for greater flight safety, and is aimed at flight line and bench testing of transponders and interrogators, and can test both identification friend or foe (IFF) transponders and IFF interegators. It is also capable of testing enhanced traffic alert collision avoidance systems (ETCAS). The IFF-701Ti allows user control of pass/fail parameters using RS-232 communications port and provides capability for storing IFF Mode 4 codes for use during transponder testing. Price: $19,995. Delivery: 4 weeks.
IFR Systems Inc., Wichita, KS (800) 835-2352 or (316) 522-4981.
Circle No. 278
* Protocol Analysis Solution
The model K1297-G20 is one of the first tools to support the Universal Mobile Telecommunication System (UMTS) and already supports testing and monitoring of diverse second generation equipment. UMTS supports the combination of voice, video and data in next-generation mobile communication infrastructures. Adding the UMTS standard to its K1297-G20 protocol analyzer allows telecommunications equipment designers to develop and test, and network operators to deploy features such as global roaming and Internet access. This feature puts this analyzer in the mainstream of 3G development and deployment. The instrument delivers full support of the UMTS Iu interface signaling protocols towards the circuit-switched and packet-switched domain. Among other duties, it can simulate the Radio Network Controller via the Iu interface while verifying the functions of the UMTS mobile switching center (and vice versa), allowing independent development of the two elements. Price: $188,000, including hardware and software for the simulation, emulation and monitoring packages; $123,000 for the monitoring package option.
Tektronix Inc., Beaverton, OR (503) 627-2001.
Circle No. 265
TUBE
* Miniature Traveling-wave Tube
The model TH 3968 traveling-wave tube (TWT) for modern electronic countermeasure systems offers a very wide bandwidth, meeting all requirements for equipment operating in the 6 to 18 GHz frequency range at an average power of 100 W. The TWT uses a helix delay line, the only technology capable of providing the necessary bandwidth. The signal is modulated by a dedicated Wehnhelt beam-forming electrode and it uses a single-stage collector. The TH 3968 is conduction-cooled, and satisfies the demanding requirements of the harsh countermeasures environment, in particular for temperature and vibrations.
Thomson Tubes Electroniques, Cedex, France +33 (0) 1 30 70 35 00.
Circle No. 266