- Buyers Guide
The model MSN-10DT-05-DEC-M options NE, 100M18, 3SS, 45004, is an absorptive SP10T switch that operates from 100 MHz to 18 GHz (10 MHz to 18 GHz optional). Insertion loss is < 2.25 dB at 100 MHz and < 4.15 dB at 18 GHz. Isolation is > 95 dB at 100 MHz and > 60 dB at 18 GHz. Amplitude is ±0.5 dB between ports from 100 MHz to 18 GHz, SWR is 2:1. Speed is < 275 ns delay on and < 75 ns delay off and power requirements are +5 V at 325 mA and -15 V at 29 mA. Weight is < 6 ounces typical. Size: 5" x 1.5" x 0.4".
American Microwave Corp., Frederick, MD (301) 662-4700. Circle No. 216
The 600F series ultra low loss ceramic chip capacitors were specifically designed for RF and microwave applications. The capacitors are packaged in standard flat mounted tape and reel orientation or optional vertical orientation for added performance benefits. This product encompasses low ESR and high voltage rating. Some additional features include standard EIA 0805 size and high self resonant frequency. This series lowers operating temperature for extended circuit reliability, allows maximum transfer of RF power, good for critical tuning, matching and filter networks. This series is good for coupling, DC blocking and bypass applications and is well suited for automated pick and place SMT assembly.
American Technical Ceramics, Huntington Station, NY (631) 622-4700. Circle No. 217
This line-up of hybrid couplers is specialized for high power UHF applications. The units are also available in models well-suited to AMPS, GSM, DCS, PCS and 3G systems. A multilayer, stripline surface-mount component is available on tape and reel for automation-based assembly. This 3 dB hybrid coupler handles power up to 300 W with low insertion loss of less than 0.15 dB. The unit is 100 percent tested prior to shipping, to satisfy stringent QC demands of broadcast system OEMs. The RFP-4440 has a frequency range of 470 to 860 MHz. Size: 1.0" x 0.5".
Anaren Microwave Inc., East Syracuse, NY (315) 432-8909. Circle No. 218
Internally Terminated Coaxial Switch
The P/N 461H-480823A-3 is an 18 GHz CANBus-controlled SP6T Smart Switch with internal 50 termination. DC characteristics include 22 to 26 VDC operation. Equipped with a latching actuator, this device switches in 50 ms max. This Smart multi-position switch targets the ATE market and provides good insertion loss repeatability. CANBus architecture allows for an easy integration of large switching systems that could utilize over 150 switches in one network, reducing complex programming and integration time of an overall system.
Dow-Key Microwave, Ventura, CA (805) 650-0260. Circle No. 220
200 MHz Duplexer
The EWT-22-0003 duplexer was designed for a high power military application. This duplexer operates in the frequency ranges of 243 to 270 MHz and 292 to 318 MHz. Passband insertion loss is less than 0.9 dB. The typical SWR is 1.5 with co-channel isolation > 60 dB. The duplexer is operational in the temperature range of -20° to 70°C and is rated for power handling of 200 W CW. All connector style combinations are available. Size: 12" x 7" x 1.5".
Eastern Wireless TeleComm Inc., Salisbury, MD (410) 749-3800. Circle No. 221
Receive Bandpass Filter
The WSF-00230 receive bandpass filter is designed for China's 1900 MHz WLL/CDMA-95 Microcell BTS. The bandpass filter features 20 MHz narrow bandwidth, low passband insertion loss and high outer band attenuation levels to 12.75 GHz, under 50 W contiguous operation.
K&L Microwave Inc., Salisbury, MD (410) 749-2424. Circle No. 224
6 to 18 GHz Analog Attenuator
The model VCA-0618-80 voltage controlled attenuator operates in the frequency range of 6 to 18 GHz. It provides a minimum of 80 dB attenuation with the control voltage from 0 to 8 VDC with a typical tuning range of 1 V/10 dB. The module is guaranteed monotonic over the attenuation range. The maximum insertion loss is 3.25 dB and SWR is 2.0 max. at any attenuation setting. It operates at +15 VDC at 35 mA and -15 V at 10 mA, over a temperature range of -40° to +80°C. Size: 2.0" x 2.0" x 0.8".
Jersey Microwave, Hackettstown, NJ (908) 684-2390. Circle No. 222
High Isolation Broadband Power Dividers
The 50PD-495, two-way divider/combiner, 50PD-496, four-way divider/combiner and 50PD-497, eight-way divider combiner offer a minimum isolation of 27 dB with typical readings around 30 dB. They operate over a frequency range of 800 to 2200 MHz and will handle up to 5 W continuous RF power.
JFW Industries Inc., Indianapolis, IN (877) 887-4539. Circle No. 223
Two-way Power Splitter
The model D2-51FN is a two-way wideband reactive power splitter with a bandwidth coverage of 380 to 2200 MHz. This power splitter is ideal for designing passive in-building wireless distributed antenna systems (DAS) which are now required to meet homeland security issues. The high reliability of this DAS system is most easily met with a passive network approach. The low loss of reactive components such as the D2-51FN, help make the passive design realizable without recourse to amplifiers or other active components. The passive approach enhances reliability, cuts installation cost and has high communications survival potential in an emergency situation.
Microlab/FXR, Livingston, NJ (973) 992-7700. Circle No. 227
High Power Drop-in Isolator
This drop-in isolator supports the 5.8 to 6.5 GHz satellite band. The design meets the recent demand for reverse power capability of up to 70 W. The isolator has a typical insertion loss of -0.32 dB, isolation of -21 dB and SWR of 1.15. Over the temperature range of -40° to +85°C, performance is -0.4 dB insertion loss, -19 dB isolation and 1.25 SWR. Size: 0.5" x 0.95" x 0.2".
M2 Global Technology Ltd., San Antonio, TX (210) 561-4800. Circle No. 271
Temperature Stable Test Cable
The SuperFlex™ 26.5 GHz test cable is phase and amplitude stable with unparalleled temperature stability of < 7 ppm per °C from -40° to +125°C. The SuperFlex is based on the pure copper GrooveTube" outer conductor technology, synonymous with stability versus flexure. The SuperFlex operating temperature range is -70° to +121°C. The phase and amplitude change versus flexure, measured for a 360° wrap around a 4.75" mandrel, is < 1.8° and < 0.02 dB at 5 GHz and < 4.0° and < 0.05 dB through 26.5 GHz. The construction is a stranded silver-plated copper inner conductor, PTFE tape dielectric, GrooveTube outer conductor, metal braid ruggedization, a neoprene outer jacket, finished with heavy-duty strain reliefs. The finished outer diameter measures 0.285".
MegaPhase LLC, Stroudsburg, PA (570) 424-8400. Circle No. 226
High Power Switch Die
The model MASWSS0091 is a GaAs PHEMT MMIC single pole six throw (SP6T) high power switch die. Features include a low voltage operation of 2.5 V, low harmonics of <-70 dBc at +34.5 dBm and 1 GHz, a low insertion loss of 0.5 dB at 1 GHz, high 35 dB Tx-Rx isolation at 2 GHz and a 0.5 micron GaAs PHEMT process. This switch is designed for dual, tri, or quad band GSM and DCS/PCS handset systems that connect separate transmit and receive functions to a common antenna.
M/A-COM Inc., Lowell, MA (800) 366-2266. Circle No. 272
The WRD-650 magic tee operates over the extended frequency range of 6.0 to 18.0 GHz. Maximum SWR is typically 1.60 dB with a collinear isolation of 15 dB minimum and sum to delta isolation of 30 dB minimum. Insertion loss of 0.5 dB is typically obtained with a phase balance of ± 5° maximum.
Microtech Inc., Cheshire, CT (203) 272-3234. Circle No. 225
High Power, Low Pass Filters
The L1202701 high power, low pass filters feature a passband of DC to 120 MHz with a passband insertion loss of less than 0.2 dB. Its rugged construction can easily handle an average power of 40 W and peak power of 1 kW into 50 . Rejection spec is greater than 90 dBc from 70 to 1000 MHz min. The filter is used for harmonic rejection at the transmitter output to eliminate spurious emissions. The housing is robust with plenty of heat sinking and uses one-piece silver-plated connectors that are screwed and soldered to the filter housing. It also has a solder-sealed lid. Size: 1.50" x 1.50" x 8.00".
Microwave Circuits Inc., Washington, DC (202) 829-3030. Circle No. 228
Micro Miniature Coaxial Switch
This micro miniature coaxial switch is a single pole two position type. The switch incorporates SMP "push on" connectors to allow high density packaging and good electrical performance through 26.5 GHz. The switch is also available in a pin configuration. This product is available in failsafe and latching configurations with a choice of three different coil voltages.
RLC Electronics Inc., Mount Kisco, NY (914) 241-1334. Circle No. 230
Amplified Switched Filter Bank
The model 142190 is a wideband integrated switchable LNA filter assembly that allows the user to switch between several overlapping frequency ranges. This system combines low loss, high rejection bandpass filters with low noise amplifiers that provide for good RF performance and reliability. Utilizing its PIN switch technology, this model has attained good isolation between frequency bands. To further enhance the isolation and minimize DC power consumption, a programmable array logic chip is used to turn on only that amplifier being used in a particular channel. This unit is optimized for small size, lightweight and good temperature stability.
MITEQ Inc., Hauppauge, NY (631) 436-7400. Circle No. 229
Sensing Chip Resistors
These four-terminal low value chip resistors are suitable for current sensing applications. The S2512FK series measures 0.250" x 0.125" x 0.030" and is rated at 2 W. The S2010FK series measures 0.200" x 0.100" x 0.030" and is rated at 1 W. Both series offer range values from 0.01 to 1.0 W and feature tolerances as tight as one percent. Standard features include marking of resistance value and current/sense terminals and wrap-around nickel barrier terminations. Options include high reliability screening and epoxy bondable terminations. Voltage ratings are 150 V for the 2010FK and 200 V for the 2512FK. The operating range for these resistors is from -55° to +125°C. Price: $1.00.
State of the Art Inc., State College, PA (814) 458-3401. Circle No. 231
Miniature Ceramic EMI Filters
These miniature EMI ceramic filters are designed to suppress unwanted EMI in applications where small size is critical. The 4305 EMI filter covers a variety of voltage, attenuation and capacitance ranges in a solder mount style. It has a flange diameter of 0.140" ±0.005" and overall length of 0.400".
Tusonix, Tucson, AZ (520) 744-0400. Circle No. 234
Ku-band Harmonic-reject Filter
This high performance Ku-band harmonic-reject filter operates from 5.850 to 6.425 GHz. The filter has a low insertion loss of 0.15 dB along with wide attenuation of up to 40 GHz. This filter is designed to suppress the harmonics generated by high power amplifiers in Satcom applications. The unit is sealed for outdoor use with waveguide flanges of CPR137. Size: 203 mm.
Universal Microwave Technology Inc., Taiwan, ROC 886-2-2698-9969. Circle No. 235
These two fully integrated FunctionPAK™ synchronous DC-to-DC boost converters provide high power density of more than 380 W per cubic inch in a small footprint. The additions to the FunctionPAK series are the FX5545G006 and FX5545G106, DC-to-DC converters designed to stabilize rechargeable battery outputs, shift DC voltage levels, filter noise and reduce ripple in power supplies for end products including cordless phones, PDAs, portable computers, digital cameras, routers, laser systems, battery back-up systems and low voltage chip sets. Size: 0.58" x 0.48" x 0.12".
Vishay Intertechnology Inc., Malvern, PA (610) 644-1300. Circle No. 236
This line of MCX and MMCX RF microwave connectors is primarily for the automotive, GPS, test and measurement, wireless and similar surface-mount applications. The subminiature MCX/MMCX series connectors are designed for SMT applications from DC to 6 GHz requiring compact, light-weight and durable connectors. Featuring snap-on interconnects rated for 500 mating cycles, they save PCB space over SMB connectors while maintaining the same electrical properties. Constructed of brass bodies, brass gold-plated male contacts, beryllium copper gold plated female contacts and Teflon® insulators, these 50 subminiature MCX/MMCX series connectors provide 750 VRMS dielectric withstanding, 1.15 SWR at 6 GHz, and conform to CEECC 22220 standards. Price: $1.50.
Tru-Connector Corp., Peabody, MA (800) 262-9878. Circle No. 233
This family of "LEE" MMIC amplifiers is highly reliable, extremely broadband and low in cost. These amplifiers have good electrical performance, with up to 17.3 dBm flat output power to 10 GHz. There are five models being introduced in this family, housed in a leadless 3 x 3 mm low profile package with exposed metal bottom for good grounding and heat dissipation. This series offers high reliability and repeatability. They are ideal for the cellular, PCS, communication receivers and transmitters as well as for satellite communication and military applications. Price: $1.19 ea. (25).
Mini-Circuits, Brooklyn, NY (718) 934-4500. Circle No. 239
Binary Gain Control Amplifiers
This binary gain control detector amplifier series offers a wide range of power from 15 to 30 dBm output power in the X- thru Ku-band frequencies. This series has an attenuation range of 30 dB and a control of 8 bit TTL max, attenuation steps of 0.25 dB, nominal LSB 0.125 dB. The amplifiers also offer a coupler detection voltage system and have a NF of 5 dB and I/O SWR of 1.5. These units can be used for uplink systems that require power control. Delivery: three to four weeks ARO.
Microwave Solutions Inc., National City, CA (619) 474-7500. Circle No. 238
MMIC Buffer Amplifier
The model XB1003 is a gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC) three-stage buffer amplifier. It operates with all three stages biased in parallel, or with independent bias for input and output stages as required to optimize performance. Using 0.15 micron gate length GaAs pseudomorphic high electron mobility transistor device model technology, this buffer amplifier covers the 16 to 29 GHz frequency bands and can be biased for low noise or high power performance. The MMIC device has a typical small signal gain of 23 dB with a typical noise figure of 2 dB across the band when biased for low noise. This high dynamic range amplifier serves as a good LNA, LO driver, or saturated or linear buffer amplifier.
Mimix Broadband Inc., Houston, TX (281) 988-4600. Circle No. 240
X-band Low Noise Amplifier
The model NLC00408 low noise amplifier with single supply using a thin film hybrid MIC process achieves robust characteristics over a temperature range of -30° to +70°C. The amplifier incorporates an internally protected voltage regulator, reverse polarity protection and can be biased in a wide range of DC voltage, with 1 dB compression point of 13 dBm typical. Noise figure is 2.4 dB typical. It utilizes SMA-F connectors and is ideal for radar and space communication applications.
Nextec Microwave and RF Inc., Santa Clara, CA (408) 727-1189. Circle No. 241
Low Noise Amplifier
The model LNA2-40DB-1.7DB offers a gain of 35 dB typical from 7 to 9 GHz. The gain flatness is better than ±1.5 dB. NF < 2.5 dB and the OP1dB is > 10 dBm. SWR in/out is 2.0 maximum and the current is 150 mA at +12 VDC maximum. Up to 75 dB gain available.
Planar Electronics Technology, Frederick, MD (301) 662-5019. Circle No. 242
Ultra Broadband Amplifier
The model AML0126L2301 is a low noise, ultra broadband amplifier. It operates in the frequency range of 100 MHz to 26.5 GHz and provides 23 dB gain and +8 dBm output power at 1 dB gain compression. Input and output SWR is 2.5 nominal. It operates with a voltage of +15 VDC and draws a nominal 180 mA. From 500 MHz to 26.5 GHz the noise figure is 3.7 dB max. Internal DC regulator, reverse voltage protection and field removable SMA connector shells are standard. Size: 0.99" x 0.75".
AML Communications Inc., Camarillo, CA (805) 388-1345. Circle No. 237
Linear Power Amplifier
The RMPA2453-251 power amplifier is designed for high performance WLAN applications in the 2.4 to 2.5 GHz frequency band, optimized for 802.11b and g applications. The low profile 16-pin package with internal matching on both input and output to 50 W minimizes next level PCB space and allows for automated integration. The on-chip detector provides power sensing capability while the logic control provides power saving shutdown options. The PA's low power consumption and good linearity are achieved using InGaP heterojunction bipolar transistor technology. Size: 3 x 3 x 1 mm.
Raytheon RF Components, Andover, MA (978) 684-8900. Circle No. 243
The QBH-2832 is a form, fit and function (F3) replacement for modular amplifiers in the 1 to 200 MHz frequency range, many of which are no longer available. Engineers can continue to build their designs using the QBH-2832, in place of discontinued models with no change in performance or design layout. Typical performance parameters of the QBH-2832, based on a 50 system, are 4.5 dB noise figure, a gain of 35.5 dB, an output power of 2 W and a third-order intercept point of +48 dBm.
REMEC Inc., Del Mar, CA (858) 560-1301. Circle No. 244
High Dynamic Range IF Amplifier
The AH31 is a high dynamic range IF amplifier that is intended for current and next generation wireless and wireline applications like cellular, CATV, PCS and UMTS systems. The AH31 is characterized by its high gain of +20 dB, low noise figure of 2.1 dB and high linearity of +40 dBm OIP3 in a surface-mount SOT-89 package. The low cost` SOT-89 package part runs off a single +5 VDC supply with 150 mA of supply current.
WJ Communications Inc., San Jose, CA (408) 577-6200. Circle No. 273
The model 0310-814 GPS-AJ antenna is a rugged, lightweight annular patch design. Its radiation pattern has a deep null at the horizon. This null greatly reduces the susceptibility of the GPS system to interfering terrestrial signals. Field trials have successfully demonstrated this feature. The antenna consists of an aluminum disk and a Lexan polycarbonate radome which houses the patch element. The antenna is fully sealed and immersion tested. It has successfully passed drop tests onto concrete. The exterior finish is matte sandstone paint. The RF port is a right-angle 50 SMA jack located under the center of the antenna. There is a provision for an RF cable stress relief clamp.
Seavey Engineering Associates Inc., Pembroke, MA (781) 829-4740. Circle No. 274
This low cost series of high performance millimeter-wave antennas was designed for the broadband market. These antennas are dual reflector Cassegrain type ECA- XX series antennas and are available in frequencies from 26.5 to 140 GHz, with reflector diameters ranging from 100 to 600 mm. The gain is up to 48 dBi depending upon frequency and reflector diameter. The main reflector has a highly accurate surface and is designed in aluminum. The subreflector is a machined aluminum hyperboloid or ellipsoid which is rigidly supported by special plastic cylinder.
ELVA-1 Ltd., Gilland Electronics Inc., Los Gatos, CA (800) 480-3391. Circle No. 246
Field Effect Transistors
The PTF102002, PTF102022 and PTF102093 Evo-Elite™ field effect transistors are devices intended for WCDMA applications. The PTF102002 is a 90 W single-ended device with a typical two carrier 3GPP output power of 18 W and efficiency of 24 percent. The PTF102022 is a 180 W device with typical two carrier 3GPP efficiency of 26 percent and 38 W average output power. The PTF102093, a 130 W single-ended device, has a typical 3GPP efficiency of 24 percent and 29 W average output power. These transistors, when driven with the PTF102015, a 30 W WCDMA device, give a combined gain output of 30, 29 and 29.5 dB, respectively. Full gold metallization ensures good device lifetime and reliability.
Infineon Technologies NA Corp., Morgan Hill, CA (408) 776-0600. Circle No. 247
This Direct Bond™-HF line of high performance direct seal modules were manufactured for circuit designs at high frequencies where signal performance is critical. Utilizing a proprietary glass-to-metal sealing technique, the modules maintain signal performance throughout all high frequency conductors without moding due to resistance. The modules are manufactured using Kovar housings and proprietary Direct Bond glass and pin design. They are ideally suited for high performance military and commercial designs such as switches and multifunction chassis assemblies utilized in radar, early warning and countermeasure systems and communication jammers.
Thunderline-Z, Hampstead, NH (603) 329-4050. Circle No. 248
Universal Noise Attenuator
This QuietPower™ output ripple attenuation module (designated at QPO-1) uses active filtering in a SIP package to provide > 20 dB of conducted differential noise attenuation from 60 Hz to 500 kHz. This QuietPower module is rated for 10 Amps and can be used with most switchmode power supplies having output voltages from 3 to 30 VDC. The QPO-1's closed-loop architecture greatly improves the load transient response of the source power supply and features precise point of load voltage regulation. The SIP can control the source either through the remote sense leads or through the voltage trim lead. The QPO-1 supports parallel operation for high current requirements. Size: 1" x 1" x 0.2". Price: $12.00. Delivery: available from stock.
Vicor Corp., Andover, MA (800) 735-6200. Circle No. 249
This high performance microelectronic packaging solution service includes the design and manufacture of ceramic and glasswall packages for devices. It includes DC through 50+ GHz, complete assembly to microwave quality, marking the product, trimming and forming the leads as required, and fully testing the device before shipment.
StratEdge, San Diego, CA (858) 569-5000. Circle No. 251
PTFE Performance Blended Laminate
The N9000-13 RF laminate materials provide the RF and microwave industry enhanced processability combined with the electrical properties of PTFE materials that are required for high frequency, low loss applications. N9000-13 RF is available in dielectric constants of 3.0, 3.2 and 3.5, and a variety of core thicknesses offering flexible drop-in solutions for existing high volume programs. This special blended formulation has a UL 94 V-0 designation and is ideal for cost-sensitive applications, such as LNBs, in-building antenna solutions for Bluetooth™ and automotive telematics.
Park Electrochemical Corp., Lake Success, NY (516) 354-4100. Circle No. 250
EMI Shielding Solution
The snapSHOT™ EMI shield is a board level, multi-cavity shielding product that provides good protection against electromagnetic interference. The metallized, thermoformed plastic shield is easy to install, easy to remove and accommodates intricately shaped designs. Electrically insulative on the inside, it allows for significant thickness reduction over currently available shielding solutions.
W.L. Gore & Associates Inc., Elkton, MD (800) 445-4673. Circle No. 252
Eutectic Die Bonder
The model 6500 eutectic die bonder combines high accuracy, speed and a compact equipment footprint. This translates to a low cost of ownership for precision assembly applications. With a eutectic placement accuracy of < 1.5 micron, 3 sigma and a cycle time of less than seven seconds per placement, the 6500 can automate assembly for advanced applications. These applications include P-side down laser diode attachment, silicon bench placement, high density RF power transistors and ultra-fine pitch hybrid assemblies. Size: 38" x 48" x 70".
Palomar Technologies Inc., Vista, CA (760) 931-3600. Circle No. 253
EDA Software Upgrade
The Advanced Design System 2003A is a new version of the communications electronic design automation software. ADS 2003A helps microwave engineers improve productivity by offering complete front-to-back MMIC design flow solution. ADS provides engineers creating microwave designs with an integrated environment for schematic capture, simulation, analysis and layout as well as connected solutions with Agilent instrumentation. ADS 2003A delivers modeling technology, design kit infrastructure support and physical design capabilities that provide new and existing ADS customers with more options for a MMIC physical design flow. Price: $8400.
Agilent Technologies Inc., Palo Alto, CA (800) 452-4844. Circle No. 254
Power Suite Software
This SIMPLORER® Power Suite is an integrated software package that addresses the rapidly increasing demand for smaller, more reliable power designs in automotive, aerospace and industrial automation. The suite combines an enhanced version of SIMPLORER, system simulation software and PExprt™, a modeling tool to allow engineers to quickly evaluate thousands of possible designs and accurately predict the performance of magnetic components. It boosts the functionality of both SIMPLORER and PExprt.
Ansoft Corp., Pittsburgh, PA (412) 261-3200. Circle No. 255
Broadband Capacitor Model
This equivalent circuit model is designed for the broadband capacitor, P/N BB0502X7R104M16VP820. The measurement-based model offers direct plug-ins for EDA software tools. The model features accuracy from DC to 50 GHz for S-parameters and dissipation, substrate-scaleable to adapt to multiple custom environments, equivalent circuit topology, is measurement-based and fully documented.
Presidio Components Inc., San Diego, CA (858) 578-9390. Circle No. 256
Dual Output Low Noise Synthesizer
The series DFSSB synthesizer offers switching speeds of 30 µs. The DFSSB series is ideal for SATCOM, wireless communication and military applications. The DFSSB unit includes a fixed L-band and synthesized RF outputs. The DFSSB offers unique options such as dual output configuration to support various transceiver functions and high stability integrated OCXO. Ruggedized and field-tested for operations over a wide temperature range as well as shock and vibration, the synthesizers meet the requirements of IESS 308, Eutelsat and MIL-STD188-146. Size: 4.00" x 3.75" x 1.20".
Elcom Technologies Inc., Rockleigh, NJ (201) 767-8030. Circle No. 257
Miniaturized PLDRO Replacements
These LT-series phase-locked DRO replacements are supplied as fixed-frequency or serially-programmable precision phase-locked oscillators. The LT-series covers the frequency range from 200 MHz to over 8 GHz. It utilizes external 10 to 125 MHz frequency references for high stability. These products exhibit exceptionally low phase noise characteristics, typically -115 dBc/Hz at 100 kHz offset at 8 GHz carrier frequency. Operating at low voltages and low current, the LT-series synthesizer consumes less than 750 mW of power. The LT-series is supplied with internal regulators, internal buffer amplifiers and typically operates over the temperature range of -30° to +70°C. This product is ideally suited for use as local oscillators in microwave digital radio transceiver applications. Size: 1.30" x 1.10" x 0.30".
EM Research Inc., Verdi, NV (775) 345-2411. Circle No. 258
The MLMA-1818 multiplier assembly incorporates a multiplier circuit, four-stage YIG filter, analog driver and 1 W input amplifier. Combining these multiple functions into one assembly insures maximum performance out of the assembly. Input frequency of 200 MHz is utilized to generate 200 MHz combs across the full 1.8 to 18 GHz frequency range.
Micro Lamda Wireless Inc., Fremont, CA (510) 770-9221. Circle No. 260
Low Noise MMIC VCOs
This pair of GaAs InGaP HBT MMIC VCOs has integrated resonators, negative resistance devices, varactor diodes and buffer amplifiers covering applications from 5.0 to 6.1 GHz. The HMC430LP4 and HMC431LP4 are ideally suited for C-band applications such as 802.11a or HiperLAN WLAN, VSAT, UNII and point-to-point radios. Both VCO products require no external components, consume only 27 mA from a single supply of +3 V and are packaged in low cost, leadless plastic QFN 4 x 4 mm surface-mount packages. The HMC430LP4 provides a +2 dBm buffered output and low phase noise of -103 dBc/Hz at 100 kHz offset over 5.0 to 5.5 GHz. The HMC431LP4 provides a +2 dBm buffered output and low phase noise of -102 dBc/Hz at 100 kHz phase noise offset over 5.5 to 6.1 GHz. The phase noise performance of both products is good over temperature, shock and process due to the monolithic structure of the oscillators.
Hittite Microwave Corp., Chelmsford, MA (978) 250-3343. Circle No. 261
High Efficiency PLDRO
This high efficiency phase-locked dielectric resonator oscillator (PLDRO) is suitable for communications, radar and instrumentation applications. The series BP1 PLDROs combine low phase noise, high stability and high output power all with a power consumption of less than 1.2 W, giving the oscillator good performance and reliability. Standard output power is +13 dBm and the phase noise is better than -108 dBc/Hz at 1 kHz, and -140 dBc/Hz at 1 MHz. Power supply requirements are +11.5 to +16 V and the operating temperature range is -45° to +85°C. The BP1 range covers 4.7 to 10.5 GHz.
Pascall Electronics, Ryde, UK +44 (0) 1983 817412. Circle No. 263
The ADA0306 is an amplifier/doubler/amplifier that doubles a 3 to 6 GHz input to 6 to 12 GHz. A +5 to +8 dBm input is converted to a typical output of +14 dBm. The ADA0306 is designed for the communications market and is available in both connectorized and carrier outlines. The ADA0306 has typical fundamental and third harmonic suppressions of 20 dBc. The supply requirement is +5 V at 100 mA.
Marki Microwave Inc., Morgan Hill, CA (408) 778-4200. Circle No. 262
The PTS 1600 is a direct synthesizer, combining analog and digital technologies. It has good close-in phase noise as well as the ability to switch rapidly from one frequency to another. High speed remote control is provided through the standard TTL-level parallel interface port, but for easy integration into testing environments a GPIB interface is also available. By employing dedicated control hardware, the GPIB interface still provides 50 ms or better frequency switching. The PTS 1600 features a keyboard and LCD display, with resolution of 1 Hz. It reproduces the accuracy and stability of an internal frequency standard or accepts 5 or 10 MHz external standards. Price: $10,000. Delivery: 12 weeks ARO.
Programmed Test Sources Inc., Littleton, MA (978) 486-3400. Circle No. 264
Dual Crystal Oscillators
These calibrated dual crystal oscillators (CDXO) feature stability of ±0.1 ppm over an industrial temperature range of -40° to 85°C. These oscillators are available with frequencies from 8 to 50 MHz. The CDXO has good phase noise performance under vibration, with a G-sensitivity of less than 0.5 ppb/G. This part has no frequency perturbations, and good vibration and shock performance under dynamic conditions. It can be surface-mounted and has reflow compatibility. The CDXO has low power consumption and requires less than 3.0 mA, and the supply voltage ranges from 2.7 to 5.0 V. Size: 5.6 x 18.3 x 11.8 mm. Price: $40.00.
Rakon Ltd., Auckland, New Zealand +64 9 573 5554. Circle No. 265
The model V810ME06 is a voltage-controlled oscillator that has been designed for the portable radio market. The V810ME06 generates frequencies covering 760 to 860 MHz within only 0.5 to 4.5 VDC of tuning and has a 1.1 linearity over frequency and temperature. This VCO exhibits a clean spectral signal of -107 dBc/Hz, typically, at 10 kHz from the carrier while offering the end user nominally -4±1 dBm of output power into a 50 W load. The V810ME06 output power has little variance across all frequencies, while operating at a fixed temperature. Size: 0.50" x 0.50" x 0.13". Price: $15.95 (5). Delivery: stock to six weeks.
Z-Communications Inc., San Diego, CA (858) 621-2700. Circle No. 267
Environmentally Controlled Cabinet
The NEMA Type 3R rated environmentally controlled cabinet (ECC) can extend the life of critical microwave systems, radio equipment, DC power systems and more by avoiding extreme temperature changes. The ECC consists of an internal rack suitable for 19" or 23" rack mounted equipment and optional insulation. The optional air conditioner provides a cool, dehumidified environment for electronic equipment with a "closed-loop" design. The forced air heater works with the air conditioner to provide complete climate control, no matter what the weather. The optional insulation provides an extra layer of protection for temperature-sensitive equipment in extreme environments.
Northern Technologies Inc., Liberty Lake, WA (509) 927-0401. Circle No. 268
Power Amplifier Module
The model 5303075 is a 0.8 to 4.2 GHz, 1.5 W power amplifier module. This multi-octave highly linear amplifier module is ideally suited to boosting the output power from signal/waveform generators by more than 10 dB. Model 5303075 covers all the major communications bands, along with Bluetooth, 802.11b and the UHF radar bands. It can withstand +20 dBm of input power indefinitely without damage. Likewise, the output can tolerate reflected power at 100 percent rated output power without damage. Needing only a single 12 VDC power supply, this compact lightweight module comes with fixing holes for fastening to a cold plate, or it can be provided ready mounted on a heatsink complete with cooling fans.
OPHIR RF, Los Angeles, CA (310) 306-5556. Circle No. 269
The TH 4062 is a Ka-band TWT that delivers 250 W peak and 125 W CW rated power with high linearity in the frequency bands of 27 to 30 GHz or 30 to 31 GHz. The TH3994 uses dual depressed collector technology for high efficiency, low thermal dissipation and small size. The RF delay line has been optimized for linearity and RF performance utilizing tools developed and proven on space TWT products. The TH 4062 also leverages field proven production technologies to insure reliability while reducing cost in large quantities. Size: 350 x 70 x 60 mm.
Thales Electron Devices, Cedex, France +33 (0) 1 30 70 35 00. Circle No. 270