Gain block MMIC
Hittite Microwave has introduced a versatile gain block, monolithic microwave integrated circuit (MMIC) amplifier covering dc to 5 GHz. Designated as the HMC482ST89, this 50 Ω amplifier provides 19 dB of gain and can be configured in cascade in various RF and IF applications. The amplifier features +22 dBm output at 1 dB compression (P1dB) and +36 dBm output, third-order intercept at 1 GHz (IP3). The HMC482ST89 can be used as a local oscillator, buffer amplifier, or a power amplifier pre-driver.
This MMIC amplifier requires a +6 V power source delivering 110 mA. It is enclosed in an industry-standard SOT89 surface-mount package.
F/A-22 Raptor radar systems
Mercury Computer Systems Inc. has shipped RACE++ series conduction-cooled multicomputer systems to Northrop Grumman Electronic Systems Sector of Baltimore, Md., for the synthetic aperture radar (SAR) systems onboard the F/A-22 Raptor fighter.
SAR systems create images of the ground from aerial or space-borne platforms. Unlike traditional optical or infrared (IR) imaging, accurate images can be created by SAR systems at night and in poor weather and visibility. Mercury's embedded multicomputers process the vast amounts of image data retrieved from the sophisticated SAR technology and turn it into actionable information that can be accessed in real time by networked soldiers and military personnel around the globe. U.S. and allied aircraft across all service branches are currently being upgraded to include SAR technology.
The F/A-22 Raptor, scheduled to become operational this year, has unprecedented fighter and attack capabilities with its balanced design of stealth, supercruise speed and extreme agility, along with advanced integrated avionics and a pilot-friendly cockpit. The F/A-22 Raptor is built by Lockheed Martin in partnership with Boeing.
Mercury Computer Systems Inc.
GPS dual-band diplexer
The 3DP9-1227/1575-M from Lorch Microwave is a GPS dual-band diplexer. The filter provides a 5 dB relative bandwidth over the center 30 MHz, with 1.5:1 VSWR over the passband. The 3 dB bandwidths are 100 MHz typical. The insertion loss at center frequency is 1.2 dB (low band), and 1.65 dB (high band) maximum. The physical size is 1.25 × 0.50 × 0.38 inches.
Anritsu Company has introduced the MG3690B series of synthesizers. Covering up to 325 GHz with mmW modules, the MG3690B combines high performance, easy configurability and an attractive price point, making it suitable for a variety of signal source applications.
The MG3690B is the highest power synthesizer, with +17 dBm of available power at 20 GHz as standard, and +23 dBm as an option. This is an improvement of more than 50% compared to the next comparable synthesizer. At 40 GHz, the high-power MG3690B delivers +19 dBm and +13 dBm at 50 GHz.
Six coaxial models are available in the MG3690B series. The models cover a variety of frequency ranges from 0.1 Hz to 65 GHz, operational to 67 GHz. With the addition of new 63850-xx series banded waveguide multipliers, the frequency range can be extended 325 GHz. The MG3690B has a starting price of $16,550.
GaAs MMIC LNA
Mimix Broadband Inc. has introduced a gallium arsenide (GaAs) monolithic microwave integrated circuit (MMIC), two-stage low-noise amplifier (LNA) that covers the 17 GHz to 35 GHz frequency bands. The LNA, identified as XL1001, has a small signal gain of 14 dB with a noise figure of 2.5 dB across the band.
The XL1001 includes simple, single supply bias with no need for negative voltages or active bias circuits and offers excellent input and output match due to its balanced design. It is suited for wireless communications applications such as millimeter-wave point-to-point radio, local multipoint distribution services (LMDS), and SATCOM.
The chip has surface passivation to protect and provide a rugged part with backside via holes and gold metallization to allow either a conductive epoxy or eutectic solder die attach process.
Ruggedized hard drive
Olixir Technologies has introduced its Mobile DataVault 2LX external hard drive in a lightweight 12.5-ounce package that exceeds MIL-STD-810F transit drop test requirements. The drive is as compact as a VHS tape, yet tough enough to withstand numerous six-foot drops. Also available with a desktop plug-and-play USB 2.0/Firewire chassis, the Mobile DataVault 2LX is an easy-to-use tape drive replacement solution for data backup and archival in small- and medium-sized enterprises.
This hard drive is suited for applications such as military field storage, mobile video surveillance, and offsite data archival. Compatible with Olixir USB 2.0, Firewire, and serial ATA interface cables; the DataVault 2LX incorporates an 8 Mb cache, enabling the user to transfer up to 1 Gbyte of data in less than 40 seconds. This hard drive can also be used with the Olixir 5.25-inch docking bay, which is suitable for applications requiring frequent hard-drive replacement.
With a height of 1.40 inches, width of 4.45 inches and length of 7.5 inches, the hard drive can fit in the palm of a hand, making it transportable in a briefcase. The price of the 60 Gbyte version of the Mobile DataVault 2LX drive is $549, with discounts for volume purchases. The drive is also available in 40 Gbyte, 80 Gbyte and 100 Gbyte versions.
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