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Military Electronics

Cover Story

  • Sep. 16, 2011
    article
    Microwaves and RF

    VNA Eases On-Wafer Measurements To 110 GHz

    This VNA-based measurement system, with its innovative millimeter-wave modules, brings the measurement power to the wafer, working with low-cost probe stations for S-parameter measurements through 110 GHz....More

News

  • Sep. 16, 2011
    article
    Microwaves and RF

    Satellites Help Chart Antarctic Ice Flow

    Shown is the first complete map of the speed and direction of ice flow in Antarctica. Recently, climate-change research achieved a major milestone. For the first time, a NASA-funded research team has comprehensively mapped the speed and ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Harbor Security System Passes Muster

    Harbor security typically isn't the first thing that comes to mind when one considers homeland security. But there are good reasons why it should be. In the United States, there are more than 300 ports and harbors conducting trillions of dollars in ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Link Emerges Between Competing Cuprate Phases

    Although superconductivity was discovered in 1911, its major and still best-known application is magnetic resonance imaging (MRI). Yet according to a new research report available from Global Information, Inc., major improvements in ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Microwave Signatures Pinpoint Water On Jupiter 2

    ON AUGUST 5, NASA's JUNO MISSION PROBE launched from Cape Canaveral Air Force Station in Florida. The probe will begin sending back data about possible water vapor on Jupiter in August of 2016. To interpret that information, scientists will ......More
  • Feb. 16, 2012
    article
    Microwaves and RF

    Market Quote

    231,000 additional jobs could be created within a year, thanks to the rapid transition from 3G to 4G mobile-broadband networks. (This possibility is cited in the study, "The Employment Effects of Advances in Internet and Wireless Infrastructure: ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Zigbee Alliance Approves Smart Energy 2.0 Draft

    In the latest smart energy Working Group letter ballot, unanimous approval was given to the ZigBee Smart Energy Profile version 2.0, draft 0.7. As a result, the 0.7 draft now can be implemented. It is currently entering a testing phase, in ......More

Design Features

  • Sep. 16, 2011
    article
    Microwaves and RF

    Fabricate An 8.35-GHz Frequency Synthesizer

    By developing a low-noise frequency synthesizer at 2 GHz and applying a pair of doublers, it is possible to achieve low-phase-noise outputs past 8 GHz for digital microwave radios....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Satellite Connects Cyclone Warning System

    The use of satellite communications and modified low-cost, digital set-top boxes provides weather-endangered coastal areas of India with an early warning system for cyclones....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    DMS Structures Stop Bandpass Filter Harmonics

    The combination of meandered coupled lines and defected microstrip structures helps create a miniature low-loss bandpass filter with negligible harmonic passband response....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Mixers, Detectors Serve MM-Wave Bands

    These DC-biased mixers and detectors can be used as the basis for high-speed or UWB millimeter-wave receivers and transmitters through 110 GHz....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Analyze DE-MZMs With Multicarrier RF Inputs

    This study investigates the harmonic and intermodulation performance expected from a dual-electrode Mach-Zehnder modulator (DE-MZM)....More

Special Report

  • Mar. 14, 2011
    article
    Microwaves and RF

    Interview: Chuck Bland and Bob Donahue from M/A-COM Technology Solutions

    With M/A-COM Technology Solutions essentially "reborn" and now able to go back to its core competencies, Chuck Bland, CEO, and Bob Donahue, COO, discuss the trip the company has taken and their hopes and plans for the future....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Advanced Radios Strengthen Battlefield Communications

    As first-generation SDRs are successfully deployed, innovations and interoperability testing continue to improve these flexible, programmable radios....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Software Speeds MW Circuit Layouts

    These tools range from free software programs and trial packages to full-fledged suites with simulators, the latter of which can ensure high accuracy and precision when creating single-layer and multiple-layer RF and microwave circuit layouts....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Choosing Military Or COTS Components?

    Designers of defense electronic systems must seek out commercial-off-the-shelf (COTS) components when practicalnot only to save money and avoid obsolescence, but also to integrate the latest technologies available....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Military Electronics Still Fuels Industry

    Requirements for military electronics systems have not changed in terms of smaller size, lower weight, and lower power consumption, but technologies have advanced to meet those needs....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Laser Proved Coupled-Cavity Concept In Mid-'80s

    IN 1965, WHEN BELL Laboratories was working on the first gas lasers, it recognized and patented the coupled-cavity concept. By the beginning of 1984, the firm had created the first practical, miniature, integrated semiconductor application ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    EuMW Promises Full Week In Manchester

    The 14th running of the European Microwave Week promises a full schedule of technical presentations, application-based seminars, and hundreds of exhibit booths with the latest microwave products on display....More

Editorial

  • Sep. 16, 2011
    article
    Microwaves and RF

    Vigilance Aids Public Safety

    Ten years have passed since September 11, 2001. Undoubtedly, most people have been thinking back to that dayremembering where they were, what they were doing, and how much everything changed in just a few short hours. Even though so much was ......More

Feedback

  • Sep. 16, 2011
    article
    Microwaves and RF

    Sideband Suspicion

    I was disappointed to see the article "Sidebands Are Not Necessary" (August 2011). This work has been debunked in several places, one of them being a good article on the web by Phil Karn. As the published article makes a rather outrageous ......More
  • Dec. 16, 2011
    article
    Microwaves and RF

    Editor's Note

    We owe you both a very shame-faced apology. We are certainly familiar with Edwin Armstrong, having named him a "Microwave Legend" a few years back. This was simply one of those abominable mistakes that creeps in sometimes when people are working at a ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    A Good Idea At The Time

    A long time ago (1978-79 timeframe), I worked at RCA in Burlington, MA as an RF design engineer. I was on a team to develop an 18-GHz frequency extension for a US Army depot automatic test set, known as EQUATE. The senior member of the ......More

R&D Roundup

  • Sep. 16, 2011
    article
    Microwaves and RF

    Small-Signal Polar Transmitters Prove Cellular Worth

    TO ENABLE LOW-COST and low-power radios for cellular phones, both optimal RF transceiver architectures and innovative circuits are needed. For such transceiver architectures, challenges must first be overcome in the design of the transmitter ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Cognitive Radio Relies On Reconfigurable Rotating Antennas

    TO FIND GAPS in the finite frequency spectrum and then alter its characteristics to operate within those bands, a cognitive-radio system requires a transmit/receive antenna that can monitor broad bandwidths and be reconfigured as ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    UWB-IR Transceiver Front End Spans 7.25 To 8.50 GHz

    FOR WIRELESS sensor networks, ultra-wideband impulse radio (UWB-IR) is increasingly being adopted for its low power consumption and high data rates. Rather simple transceiver architectures make UWB-IR a very low-energy solution. Yet such ......More

Application Notes

  • Sep. 16, 2011
    article
    Microwaves and RF

    Spectrum Reassignment Bodes Well For Economy

    In this lagging recession, much hope has been pinned on future broadband communications jobsand for good reason. Between 2002 and 2010, capital spending in the wireless industry is said to have exceeded $185 billion. On average, it created ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    LDMOS Expands Its Niche To ISM And Beyond

    In the semiconductor industry, each process technology is known for its own strengths and weaknesses. As a result, every technology targets different applications and often develops niches. RF laterally diffused metal oxide semiconductor ......More

Product Feature

  • Sep. 16, 2011
    article
    Microwaves and RF

    Services Guide Custom Designs

    A number of high-frequency firms specialize in performing designs and manufacturing for other companiesat levels ranging from ICs, components, and circuit boards to complete microwave subsystems and systems....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    USB Generators Extend To 20 GHz

    These signal generators use a laptop or personal computer for power and control, but provide all the performance and flexibility of much larger microwave signal generators....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    ADCs Enable Direct Sampling To 2.7 GHz

    The high-input frequencies and fast sampling rates of these analog-to-digital converters may change the way that receiver designers construct the IF sections of their systems....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    SoCs Linearize 3G/4G Power Amps

    These compact linearizer chips provide improved performance in power amplifiers for 3G and 4G wireless communications systems, reducing distortion and increasing efficiency through 2800 MHz....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Stable TCXO Fits Tight Spaces

    Available with outputs from 10 to 52 MHz, this crystal oscillator offers low close-in phase noise in a footprint designed for applications that require an extremely small reference source....More
  • Sep. 16, 2011
    article
    Microwaves and RF

    GaN Power Amplifiers Include Thermal Protection

    This family of GaN power amplifiers includes models operating across the full range from 2 to 18 GHz, with as much as 40 W saturated output power at frequencies through 10.5 GHz....More

Products

  • Sep. 16, 2011
    article
    Microwaves and RF

    VCO Tunes From 1265 To 1465 MHz

    Model SMV1365C-LF is a voltage-controlled oscillator (VCO) designed for L-band applications from 1265 to 1465 MHz. It operates with a tuning range of +0.5 to +4.5 VDC with typical tuning sensitivity of 113 MHz/V. It delivers typical output power of ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    WR-90 Rotary Joints Cut Losses To 12.4 GHz

    A pair of waveguide rotary joints has been introduced for applications from 8.0 to 12.4 GHz. The rugged WR-90 size waveguide rotary joints are available in F-type and U-type configurations. In the F-type rotary joint, one inline arm is fixed ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Conical Inductors Extend To 40 GHz

    A line of broadband conical inductors introduced at the recent International Microwave Symposium (IMS) is suitable for applications from 40 MHz to 40 GHz. The unique broadband response of the coil is attributed to its precision winding, wire ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Drop-In Circulator Spans 5.2 To 11.0 GHz

    Model 3G7BH is an octave-band drop-in circulator designed for applications from 5.2 to 11.0 GHz. It is supplied in a stainless-steel square housing measuring just 0.75 in. a side. The circulator can handle 20 W of incident RF power and ......More
  • Sep. 16, 2011
    article
    Microwaves and RF

    Two-Way Divider Runs 20 To 3000 MHz

    Model DL22030 is a broadband two-way power divider with frequency range of 20 to 3000 MHz suitable for a wide range of applications. The ferrite component features maximum insertion loss of 2 dB and minimum isolation of 18 dB across its ......More
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