April 2008

Military Products

Sapphire Pistoncap® Trimmer Caps

The Defense Logistics Agency has qualified four configurations of the company’s sapphire dielectric trimmer capacitors to the specifications of the current issue of MIL-PRF-14409. The parts are listed on Qualified Parts List (QPL) 14409 with government designations starting with PC21, PC22, PC23 and PC24.
Sprague-Goodman Electronics
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Variable Gain Amplifier Product Line

A family of dual mode digitally controlled variable gain amplifiers (DVGA) for microwave radio and military applications that operate in the frequency band of DC to 6 GHz has been introduced. These innovative DVGAs are an ideal choice for use in cellular infrastructure, test and measurement, or military radio systems where an accurate signal level control and a low noise figure contribution is required. The HMC625LP5E is a 0.5 dB LSB GaAs MMIC 6-bit DVGA that delivers a selectable gain range of 31.5 dB and an output 1 dB compression point of +19 dBm. Its excellent output third order intercept point of +33 dBm makes this unit a popular choice within many transceivers that operate within the DC to 6 GHz frequency range. The HMC627LP5E is a 6-bit digital variable gain amplifier that delivers peak performance below 1 GHz with 20 dB of gain control, +36 dBm OIP3 and a low 4.3 dB noise figure contribution is achieved. Both of these models incorporate a dual mode interface that is CMOS/TTL compatible and accepts either 3-wire serial input or a 6 bit parallel word. For higher gain requirements, the HMC626LP5E provides 43 dB of gain control between DC to 500 MHz and 35 dB from 500 MHz to 1 GHz. In addition to the attenuation range of 31.5 dB, the unit provides an excellent noise figure performance of 4 dB and a typical OIP3 of +36 dBm.
Hittite Microwave Corporation
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Surface Mount Synthesizer

The PN (Commercial) Series and UPN (Hi-Rel) Series synthesizer are designed for broad-bandwidth, fast-switching applications. This miniature frequency synthesizer covers >30% bandwidths in the frequency range from 100 MHz to over 6 GHz. Designed specifically for hi-rel military applications, this frequency synthesizer is serially-programmable and features settling times as fast as 4 microseconds to within +/-1 KHz of frequency. The unit is housed in a 0.90 sq. x 0.15” thick surface-mount package and is available with optional internal reference.
EM Research, Inc.
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Digital Pulse Compression Sub-System

The CI BM7xx is a new digital pulse compression sub-system (DPCSS) with chirp generator (transmitter) and compressor (receiver) modules at intermediate frequency (IF). This DPCSS with analog I/Os enables upgrades of SAW-based radars by increasing overall system performance. Combining the latest generation field-programmable gate arrays (FPGAs) for signal processing and the analog input and output for the IF of the SAW, this signal processor is an excellent replacement solution for currently operating SAW-based radars. High-speed digital signal processing removes all the inherent limitations of SAW analog nature and improves performances of side lobes level (which is now like the theory), differential phase between receiver channels (which is now perfect). This digital solution lowers power consumption in comparison to oven devices. This pulse compression sub-system is self-consistent and needs only a DC supply voltage for operation. All the pulse compression parameters such as center frequency, bandwidth, time dispersion, modulation law, weighting function are programmable.
Temex
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FPGA Processor Module for Signals

The flexComm™ XMC-8131 reconfigurable parallel processing engine is now available. The XMC-8131 provides high performance processing that supports the implementation of multi-channel, multi-mode receivers for both narrowband and wideband air-interfaces. The unit is the company’s next-generation processing module that utilizes a single user-programmable Xilinx® Virtex-4™ FPGA that provides up to 152,064 available logic cells. The module offers two banks of 256 MB DDR-2 SDRAM totaling 512 MB, ideal for signals intelligence (SIGINT) applications that require a large memory buffer. In addition to the increased processing capability, the use of the Virtex-4 component reduces the power consumption and price of the module over the previous generation product.
Spectrum Signal Processing by Vecima
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ARINC 801 Contact

A Size 16 ARINC 801 contact for single and multi-mode applications has been introduced. The ARINC 801 fiber optic terminus is the next generation of butt-joint interconnect technology, allowing for higher density multichannel connectors to be achieved. With its standard 1.25mm ferrule and sleeve, the ARINC 801 terminus is designed for both multimode and single-mode applications and is compatible with standard LC termination processes. The terminus is available both as a pull-proof design and as a general use design for tight jacketed cable. For the pull-proof design, the cable jacket is crimped on an external body and a floating mechanism avoids any loss of performance when pulling on the cable. This feature allows for the use of the connector without a backshell. Standard connector formats include MIL-DTL-38999 type, MIL-DTL-83527 type, ARINC 600 and ARINC 781.
Sabritec
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L Band, High Power Amplifier

Model number SPA 1.2-1.4-200 is a high power, pulsed RF amplifier that is employed in military L Band radar systems and operates from 1200 to 1400 MHz.. This PA was designed for L Band radars on fighter aircraft but can be employed in any system as this module is robust. The nominal peak input power is 0 dBm for the 200W minimum peak output power. The amplifier employs a pulse width and duty cycle limiter to ensure no damage if the input is CW. RF rise and fall times are typically 40nSec. The nominal applied voltage is 34 Vdc, but power control for this amplifier is employed by adjusting this voltage from 37 to 20 Vdc. Harmonics are -50 dBc typical and in band spurs are <-70 dBc. Nominal pulse conditions are 10 to 100USec but longer pulses can be utilized. Typical duty cycles are 10 to 20% but longer duty cycles can be employed. This high performance amplifier is fully protected from an open or short circuit at the antenna port. Over and under voltage protection is standard. The power flatness across the band is an impressive +/-0.6 dB. Input and output VSWR is 1.5:1 typically. The housing is an irregular shape but if it were square, its dimensions would be 6.5 x 12.6 x 1.0”. The input and output RF connectors are type N female. DC and command/control functions are available via a DSUB connector.
Aethercomm
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Miniature Frequency Synthesizers

The LT-Series of frequency synthesizers operate with minimal phase noise degradation at random vibration levels exceeding 14 g’s RMS, 20 Hz to 2 KHz. Shielded alumninum housings are surface-mountable, and can be optionally hermetically sealed for use in stringent environments. The products are offered with optional RoHS compliance, Pb-free and tin-mitigated designs. Ideally suited for use as local oscillators in UAV, re-entry vehicle (sounding rockets), and military ballistics applications.
EM Research, Inc.
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