Microwaves and RF December 2011 Magazine: Issue Contents

Dec. 16, 2011

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Microwaves and RF

VNAs Help To Revolutionize Breast-Cancer Screening

1. With breast cancer the most common cause of death for women aged 35 to 59 in Europe, it is hoped that a new technique may eventually ensure that all womenregardless of agewill be routinely screened. Modern mammography systems are widely used, but ......More
Dec. 16, 2011

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Microwaves and RF

Etching Alternative Emerges For RFID Antennas 1

1. This new method of producing flexible circuit boards uses a dry process and paper as the substrate instead of the wet, chemical-based etching process. Traditionally, RF-identification (RFID) antennas have been produced by etching conductive ......More
Dec. 16, 2011

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Microwaves and RF

Market Wrap-Up

Energy harvesting is increasingly being looked at as a valid source of power for a variety of devices and applications. Although wireless energy harvesting is earning wide industry support, it is still in the early stages of adoption. According to the ......More
Dec. 16, 2011

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Microwaves and RF

Agilent Moves To Acquire Accelicon Technologies

Microwave engineersand electrical engineers in generalare increasingly relying on software to perform a variety of design tasks. As a result, many software firms are looking to enhance their portfolios to offer more complete solutions. Agilent ......More
Nov. 12, 2008

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Microwaves and RF

Kudos

BEDFORD, OHWesgo Metals, a business of Morgan Technical Ceramics (MTC), has earned its ISO-14001 certifications. An international quality-management standard, ISO-14001 certification encourages businesses to implement, maintain, and improve ......More
Dec. 16, 2011

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Microwaves and RF

Water Meter Is Zigbee Certified

Smart meters are an integral part of the smart-grid rollouts that are increasing globally. In the very near future, they will be complemented by smart water meters. The first ZigBee-certified wireless water meter has been developed by Elster and ......More

Dec. 16, 2011

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Microwaves and RF

Simple Predistorter Polishes PA Performance

This low-cost RF predistortion circuit helps overcome the nonlinear behavior of RF and microwave power amplifiers without sacrificing amplifier efficiency....More
Dec. 16, 2011

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Microwaves and RF

Design Tunable Filters Using Feedback

Tunable microwave filters are useful in both commercial and military systems. The oldest forms of these filters are mechanical, with excellent insertion loss and power-handling capabilities, but large in size and with slow tuning speeds. For ......More
Dec. 16, 2011

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Microwaves and RF

Matching DFDs To Target Applications

Selecting a digital frequency discriminator for use within an IFM receiver or in an electronic warfare system requires an understanding of the units essential performance parameters....More

Dec. 16, 2011

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Microwaves and RF

Top Application Trends of 2011

From the smart grid and wireless medical monitoring to energy harvesting and the increased use of smartphones, these applications will drive product and technology developments into the future....More
Dec. 16, 2011

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Microwaves and RF

Get A Feel For Energy Harvesting's Current Strongholds

Last month, IDTechEx held the Energy Harvesting & Storage USA event in Boston, MA. In summarizing the show's highlights, Raghu Das, IDTechEx CEO, categorized current "hot" areas for energy-harvesting opportunities. The need to power wireless sensors is ......More
Dec. 16, 2011

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Microwaves and RF

Standards Expand For Enhanced Performance

Wireless communications standards continue to evolve by expanding channel bandwidths and extending the use of advanced technology, including higher orders of modulation....More
Dec. 16, 2011

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Microwaves and RF

Transistors Pick Up Speed With GaAs

A great deal of the early expansion of cellular communications and the increased data rates in telecommunications systems can be traced to the development of GaAs technology....More
Dec. 16, 2011

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Microwaves and RF

Optical Communications Inspired Amplifier Developments

This traveling-wave amplifier, which targeted 40-Gb/s systems, was based on InP heterojunction-bipolar-transistor (HBT) technology. OPTICAL TECHNOLOGY remains a critical aspect of today's communications infrastructure. Of course, it is ......More
Jun. 15, 2011

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Microwaves and RF

Interview: Farlin A. Halsey, President, CEO, and Director of RF Monolithics

Upon taking the reins at RF Monolithics, Farlin A. Halsey, President, CEO, and Director, shares his expectations and hopes for the company while providing insight into how it has survived the recent downturn....More
Dec. 16, 2011

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Microwaves and RF

Exhibitors Show EW Wares At 48th AOC

The annual Association of Old Crows conference and exhibition drew more than 100 exhibiting companies and more than 1000 attendees to this long-running EW show....More

Dec. 16, 2011

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Microwaves and RF

Of Memory And Growth

Jack Browne Technical Contributor How does one properly summarize 50 years of publication for one magazine? Over the past 12 months, Microwaves & RF readers have shared their thoughts with us on this industry's history. In visits to industry ......More

Dec. 16, 2011

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Microwaves and RF

Amending Armstrong

I'm in the middle of reading the piece submitted by Geoff Mendenhall, Jay Adrick & Tim Anderson of Harris Corp. ("Broadcasting Harnesses The Digital Age," 50th Anniversary issue) and was enjoying it, when I came to the part about the inventor of FM ......More
Feb. 16, 2012

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Microwaves and RF

Editor's Note

You are correctthe frequency range we mentioned was based on the story from May ("PXI-Based VSA Scrutinizes 3.6 GHz"). All of the selections for these annual "Top Products" lists are based on the product at the time of the Product Feature or Cover ......More
Feb. 18, 2011

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Microwaves and RF

Correction

Owing to a production error, three figures that appreared with the January 2011 Design Feature "Make Quick Work Of Impedance Measurements" by Alberto Bagnasco were displayed incorrectly. Here are the correct versions of the figures; we ......More

Dec. 16, 2011

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Microwaves and RF

Terahertz Radar "Maps" Targets In Long-Distance Pat-Down

Due to concerns over privacy, efficiency, and accuracy, security screening at airports and other public places is constantly being improved. At NASA's Jet Propulsion Laboratory, a 675-GHz imaging radar with the potential to perform such screenings from a ......More
Dec. 16, 2011

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Microwaves and RF

Vacuum Electronics Serve As Terahertz Power Source

Capabilities have greatly advanced for vacuum-electronic-device (VED) sources of terahertz and near-terahertz coherent radiationboth continuous wave (CW) and pulsed sources. Quantum-theory models of some terahertz VEDs have been developed and used with ......More
Dec. 16, 2011

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Microwaves and RF

Three-Terminal Transistors Enable Amplifiers And More At 670 GHz

Over the last few years, the development of transistor technologies with maximum frequency of oscillation, fMAX, beyond 1 THz has driven amplifier operating frequencies into the sub-millimeter-wave range. Work in the 460-to-500-GHz range, for example, ......More

Dec. 16, 2011

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Microwaves and RF

Integrated Solutions Conquer MIMO Testing

Because they inhabit such high-multipath environments, commercial wireless systems greatly benefit from the use of multiple-input multiple-output (MIMO) antenna systems. Due to MIMO's complexity, however, utilizing the technology requires both expertise ......More
Dec. 16, 2011

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Microwaves and RF

Small-Cell Architectures Support Data Traffic

Much has been said about the need for small-cell architectures to support the rollout of next-generation telecommunications networks. Given that this is a new model, however, many are trying to understand the specific role of those architectures. In ......More

Dec. 16, 2011

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Microwaves and RF

Top Products Of 2011

In spite of the struggling economy, companies showed both innovation and resourcefulness in advancing many different technologiesbe they test, components, or software....More
Dec. 16, 2011

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Microwaves and RF

Gauging Ruggedness In RF Power Transistors

Some of the latest high-power RF transistors claim notable ruggedness ratings, allowing them to operate into severe load mismatches at full power without damage or even performance degradation....More
Dec. 16, 2011

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Microwaves and RF

Modules Extend Radios' Reach

These three modules and their base units simplify the addition of input and output points both to ISM-band wireless radio networks and high-speed serial communications systems....More
Dec. 16, 2011

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Microwaves and RF

Dual-Channel DACs Help Conserve Power

This pair of dual-channel data converters supports a wide range of commercial and military applications with stable, noise-free output signals as a result of sampling rates to 500 MSamples/s....More

Dec. 16, 2011

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Microwaves and RF

DROs Run 8 To 12 GHz

The DRO series of high-performance dielectric-resonator oscillators (DROs) generate clean output frequencies from 8 to 12 GHz. An electrical tuning option offers an adjustment range of 3 MHz for phase-locking applications by means of 0 to +12 VDC ......More
Dec. 16, 2011

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Microwaves and RF

LNA Scales To 500 MHz

Model AMF-2F-00020050-20-28P is a broadband low-noise amplifier (LNA) capable of more than 35 dB gain from 20 to 500 MHz with maximum noise figure of 2 dB. The gain flatness is 1.75 dB across the full band, and typically 1.0 dB. The ......More
Dec. 16, 2011

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Microwaves and RF

Power Dividers Span 0.5 To 8 GHz

The 4436 family of RF/microwave power dividers includes two-way, three-way, four-way, and eight-way versions from 500 MHz to 8 GHz. These compact, low-loss units can handle peak input power levels to 1.5 mW and continuous-wave (CW) levels to ......More
Dec. 16, 2011

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Microwaves and RF

GaN-on-SiC HEMT Powers 6 GHz

Model T1G6001528-Q3 is a packaged high-electron-mobility transistor (HEMT) fabricated with a gallium nitride (GaN) on silicon-carbide (SiC) 0.25-m semiconductor process. It can serve applications from DC to 6 GHz and is suitable for ......More
Dec. 16, 2011

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Microwaves and RF

VCO Tunes From 1200 to 2100 MHz

Model CVCO55CW-1200-2100 is a voltage-controlled oscillator (VCO) that operates from 1200 to 2100 MHz by means of tuning voltages from 0.5 to about 25 V. Te VCO features typical phase noise of -95 dBc/Hz offset 10 kHz from the carrier with ......More
Dec. 16, 2011

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Microwaves and RF

USB Power Sensor Reaches 4 GHz

Model PWR-4GHS Smart Power Sensor is an easy-to-use Universal Serial Bus (USB) instrument that turns a PC into a power meter. It can be used for continuous-wave (CW) power measurements from -30 to +20 dBm at frequencies from 9 kHz to 4 GHz. ......More

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