Articles
Radar System Tracks Test-Missile Stages
IN A RECENT DEMONSTRATION, the XSTAR instrumentation radar system successfully tracked both the launch and fl ight of a multi-stage test missile (see photo). This system, which is the brainchild of General Dynamics and STAR Dynamics, promises ...
SBIRS Stays The Course
One of the United States highest-priority space programsthe Space Based Infrared System (SBIRS)recently hit another milestone toward completion.
CMOS RF Front End Improves Universal-Tuner Performance
Due to the wideband nature of broadcast signals, local-oscillator (LO) mixing problems arise with odd harmonic frequencies. Such issues are not considered in the design of conventional narrowband receivers. Yet this odd harmonic mixing poses a serious ...
People
Lockheed MartinChairman and Chief Executive Officer Bob Stevens has announced his retirement as CEO effective January 1, 2013. Subject to election by shareholders and approval by the board of directors, Stevens will remain Chairman through January 2014. ...
Contracts
Megaphase-Planetary Resources, which plans to mine near-Earth asteroids for raw materials, will utilize the company's GrooveTube cable assemblies. Megaphase's cables were previously used by the Japanese Hayabusa space probe. That probe was tasked with ...
VCO Frequency-Calibration Approach Delivers Speed And Accuracy
In multiband, multi-mode RF transceivers, engineers often opt to use a single, wideband phase-locked-loop (PLL) synthesizer. Before the PLL's closed-loop locking process begins, voltage-controlled-oscillator (VCO) frequency calibration is used to find ...
Market Watch
The number of streamed mobile TV users on smartphones will jump to 240 million by 2014 This increase will be driven by increased smartphone penetration as well as growth in the usage of Internet TV and Internet Protocol television (IPTV) ...
OCXO Cuts Noise To 40 MHz
Model OX-501 is a surface-mount oven-controlled crystal oscillator (OCXO) that is ideal for cellular base stations and military communications equipment, as well as in test equipment. It is supplied in a 6-pin surface-mount package and available in ...
Modulator Runs 50 To 1000 MHz
Model PSM-50M1G-CD-1 is a single sideband (SSB) modulator designed for use from 50 MHz to 1 GHz. It has an intermediate-frequency (IF) range of DC to 10 MHz and IF modulation power range of +7 to +13 dBm into 50 O. The SB modulator features an input 1-dB ...
Mixers, Amplifiers Reach 46.5 GHz
Several components have been developed for microwave/millimeter-wave radios and other high-frequency applications from 24.0 to 46.5 GHz. The components include two amplifiers and three mixers. Model HMC1040LP3CE is a low-noise amplifier (LNA) with 2.2-dB ...
Fresh Starts
AVX Corp.GAM Technology, the first tantalum smelter to achieve EICC/GeSI Conflict-Free Smelter validation, has joined the company's Solutions for Hope Project. GAM Technology will process the fourth shipment of validated conflict-free tantalite ore mined ...
Amplifier Drives 400 W To 500 MHz
Model SSPA 01-05-400 is a high-power amplifier system that delivers 400 W output power from 100 to 500 MHz. Suitable for linear military communications systems, the amplifier is designed for harsh environments and operating conditions. It requires just ...
Relay Switches Signals To 9 GHz
A new microstrip/coplanar-waveguide-mount relay from RelComm Technologies offers outstanding performance from DC to 9 GHz. Designed for high packaging density and a great deal of circuit layout flexibility, the rugged relay measures just 0.880 x 0.575 ...
Simulator Handles Multiple Disciplines
Version 4.3 of the COMSOL Multiphysics modeling and simulation software is now available, with a number of improvements and increased functionality. COMSOL Multiphysics 4.3 includes three new discipline-specific add-on modules, fast and powerful meshing, ...
Coupler Directs 1 To 18 GHz
Model 180120 is a stripline directional coupler with frequency range of 1 to 18 GHz. Ideal for military electronic-warfare (EW) systems, commercial wireless system applications, and broadband testing, the 20-dB coupler features coupling flatness within 1 ...

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