Microwaves and RF February 2012 Magazine: Issue Contents

Feb. 16, 2012

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Microwaves and RF

Teledyne Consolidates Microwave Businesses

In these still-uncertain economic times, it has become increasingly sensible for companies to diversify their product offerings. Teledyne Technologies, for example, provides the following: digital imaging products and software; instrumentation; ......More
Jan. 25, 2012

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Microwaves and RF

Kudos

Global Semiconductor Alliance (GSA)Has announced the following 2011 awards recipients: Dr. Morris Chang Exemplary Leadership AwardDr. Henry Samueli, Broadcom Corp.; Most Respected Public Semiconductor Company Achieving $500 Million to $10 Billion in ......More
Feb. 16, 2012

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Microwaves and RF

Research Vehicle Flaunts 4G Capabilities

A research vehicle was recently used to show how a more holistic, cloud-connected, in-vehicle experience could offer a number of benefits to both drivers and passengers. Such benefits ranged from infotainment applications like content streaming to ......More
Feb. 16, 2012

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Microwaves and RF

Bilayer Graphene Functions As Insulator

In this schematic diagram of bilayer gaphene, the blue beads represent carbon atoms. (Courtesy of Lau Lab, UC Riverside) Many researchers are eying graphene for its potential use in electronics applications. Because single-layer ......More
Mar. 14, 2012

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Microwaves and RF

Market Quote

According to a recent analysis by the Population Reference Bureau, the science and engineering (S&E) workforce in the United States appears to have stalled. In 2010, S&E workers accounted for just 4.9% of the total workforcedown from 5.3% in 2000, ......More
Feb. 16, 2012

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Microwaves and RF

Submit Your Nomination For The Wireless Hall Of Fame

With its "Wireless Hall of Fame," the Wireless History Foundation has recognized the groundbreaking achievements of 32 individuals since its inception in 2000. Eligibility for the hall of fame is based on an individual's contributions to the advancement ......More
Feb. 16, 2012

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Microwaves and RF

Standards Watch

The "Internet of Things" promises to enable greater connectivity for use by utilities, healthcare services, intelligent transportation, and more. Now, a Telecommunications Industry Association (TIA) standard has emerged as a foundation for the future of ......More
Feb. 16, 2012

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Microwaves and RF

Get The Lowdown On 3D ICs

Excitement has been building about the potential benefits of three-dimensional (3D) semiconductor technology. At this early stage, however, it is difficult to discern what is realistic to expect in the near termboth in terms of advantages and problems. ......More

Feb. 16, 2012

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Microwaves and RF

Current Reuse Enhances UWB LNA

This broadband low-noise CMOS amplifier covers the ultrawideband (UWB) communications frequencies from 3.1 to 10.6 GHz with the aid of current-reuse techniques....More
Feb. 16, 2012

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Microwaves and RF

CMOS Yields UHF RFID Transmitter

This integrated RFID transmitter includes an upconversion mixer and power amplifier for generating high-output voltage waveforms with relatively high efficiency from 860 to 960 MHz....More
Feb. 16, 2012

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Microwaves and RF

Assemble A Compact UWB Printed Monopole

Based on the shape of a half-periodic sinusoid, this novel antenna features CPW feedlines and compact size while covering the full 3.1-to-10.6-GHz UWB range....More
Feb. 16, 2012

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Microwaves and RF

Compensating For DGS Filter Loss

Dr. Ahmed Boutejdar and Dr. Abbas Omar Novel circuit design elements such as defected-ground-structure (DGS) resonators and electromagnetic-band-gap (EBG) structures have helped shrink the size of microstrip circuits, including filters and antennas. In ......More
Feb. 16, 2012

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Microwaves and RF

Tiny UWB Antenna Notches Two Bands

By using a simple coplanar-waveguide (CPW) feed and two resonant structures, this relatively simple antenna can cover the full UWB frequency range with notches for two occupied bands....More
Feb. 16, 2012

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Microwaves and RF

Filter's Multiple TZs Afford Flexible Tuning

This dual-mode microstrip filter employs multiple controllable transmission zeros to realize the required selectivity or rejection of unwanted spurious signals....More
Feb. 16, 2012

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Microwaves and RF

C-Shaped Slot Serves UWB Antenna

The use of a novel C-shaped slot helps define band-notched characteristics for this broadband microstrip antenna design for use across the UWB frequency band....More

Feb. 16, 2012

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Microwaves and RF

Comparing Microwave Semiconductor Processes

These many active-device semiconductor technologies offer a wide range of performance levels across ranges extending from HF through millimeter-wave frequencies....More
Feb. 16, 2012

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Microwaves and RF

Interview: Phillps' Menno Treffers, Chairman of the Wireless Power Consortium

A lot of companies have thrown their hats into the wireless-charging ring, and multiple standards have evolved as a result. But the Wireless Power Consortium's Qi already has made progress, as shown by this interview....More
Feb. 16, 2012

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Microwaves and RF

Process Technologies Secure Key Applications

High-frequency circuit and device designers rely on a number of different semiconductor processes, each with strengths in different applications areas....More

Feb. 16, 2012

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Microwaves and RF

Is GaN Really The Future?

During a lifetime in the RF/microwave industry, one gets to see a great deal of change. Take silicon-bipolar-transistor amplifiers: When they first started to replace vacuum-tube power amplifiers some three decades ago, tubes were replaced in ......More

Feb. 16, 2012

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Microwaves and RF

Clarifying LXI

Having just read the article “Test Modules Offer Measurement Versatility” (January 2012), you describe LXI as being a modular instrument standard. This is misleading. LXI is standardized around the Ethernet interface but has very little constraint on ......More
Jan. 25, 2012

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Microwaves and RF

Editor's Note

Much thanks and appreciation to Mr. Grace for taking the time to write about this major oversight on our part. While this short article was really meant to give a quick historical nod to gallium arsenide (GaAs) as a semiconductor material, it is ......More
Feb. 16, 2012

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Microwaves and RF

Top Product Revisited

I just wanted to send you a quick note about your article, "Top Products of 2011" (December 2011). First of all, thank you very much for including National Instruments on the list. The NI PXIe-5665 VSA is certainly on our list of accomplishments for ......More
Jan. 25, 2012

article

Microwaves and RF

Editor's Note

Much thanks and appreciation to Mr. Grace for taking the time to write about this major oversight on our part. While this short article was really meant to give a quick historical nod to gallium arsenide (GaAs) as a semiconductor material, it is ......More

Feb. 16, 2012

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Microwaves and RF

RFID System Does Away With Chips

RADIO-FREQUENCY-IDENTIFICATION (RFID) SYSTEMS have long proven their worth in business and manufacturing for tracking and managing inventory. Typically, an RFID system consists of a reader or interrogator and a tag, the latter of which is often ......More
Feb. 16, 2012

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Microwaves and RF

Deciding Between Dielectric or Magnetic Material

ANTENNA DESIGNERS have long been faced with the challenge of miniaturizing their components. Resonant antennas that are typically used in hand-held wireless devices can be made geometrically smaller by inserting the appropriate loading ......More
Feb. 16, 2012

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Microwaves and RF

Low-Noise Synthesizer Generates 60 GHz

HIGH-DATA-RATE COMMUNICATIONS AT millimeter-wave frequencies, per IEEE 802.15.3c requirements, will require extremely stable, low-noise signals. To provide those signals, Ahmed Musa, Rui Murakami, Takahiro Sato, Win Chaivipas, Kenichi ......More

Feb. 16, 2012

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Microwaves and RF

Magnetic Absorbers Serve Collision-Avoidance Systems

Because collision-avoidance systems (CASs) must obviously be fail-safe, they rely on microwave absorbers or "noise-suppression sheets" (NSSs) to reduce electromagnetic interference (EMI). All electronics that operate at high frequencies can have problems ......More
Feb. 16, 2012

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Microwaves and RF

Get Up To Speed On Dielectrics

All materials on Earth can be considered dielectric materials. Such materials can both influence and be influenced by the electric portion of an electromagnetic (EM) field. In a new "Tech Note," Emerson & Cuming Microwave Products provides a nice ......More

Feb. 16, 2012

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Microwaves and RF

Check Semiconductor Device Characteristics

These test systems are designed to evaluate the basic operating characteristics and performance limits of RF/microwave discrete devices and integrated circuits....More
Feb. 16, 2012

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Microwaves and RF

Scopes Capture Signals To 60 GHz

These high-speed oscilloscopes blend silicon-germanium technology with broad operating bandwidths to achieve measurement sampling rates as high as 80 GSamples/s....More
Feb. 16, 2012

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Microwaves and RF

Firm Offers Design And Management Aid

Whether it is project management to ease deadline pressures or assistance with a system design, this company can help finish the job....More
Feb. 16, 2012

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Microwaves and RF

Module Turns Scope Into Waveform Analyzer

This powerful little module transforms a sampling oscilloscope into precision waveform analyzers capable of analog bandwidths to 35 and 50 GHz....More
Feb. 16, 2012

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Microwaves and RF

Materials Aid EMI Suppression

These materials are ideal for use in vehicular collision-avoidance systems, as well as for EMI suppression in a range of applications from HF through millimeter-wave frequencies....More
Feb. 16, 2012

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Microwaves and RF

Dual-Band Amplifier Powers 300 To 3800 MHz 1

This robust power amplifier provides at least 50 W output power through 3.8 GHz using a combination of silicon LDMOS and GaAs FET device technologies in two operating bands....More

Feb. 16, 2012

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Microwaves and RF

Dual-Band TWTA Powers 2 To 18 GHz

Model dB-4409 is a pod-mounted, dual-band traveling-wave-tube amplifier (TWTA) with 300 W CW output power. It features fast switching between its two standard frequency bands of 2 to 8 GHz and 7.5 to 18 GHz for full-band frequency ......More
Feb. 16, 2012

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Microwaves and RF

GaAs Amp Boosts 10.0 To 13.3 GHz

Model MAAP-008924 is a three-stage GaAs power amplifier (PA) with generous output power. It delivers +31-dBm output power at 1-dB compression from 10.0 to 13.3 GHz with a third-order-intercept (IP3) point of +44 dBm for applications ......More
Feb. 16, 2012

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Microwaves and RF

Highpass Filter Cleans 26.5 To 40.0 GHz

Model HP-26D5G-40G-CD-292FF is a highpass filter from Planar Monolithics Industries with a passband of 26.5 to 40.0 GHz and 1-dB cutoff frequency of 26.5 GHz. Fabricated with suspended-substrate technology, the filter features less than 2-dB ......More
Feb. 16, 2012

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Microwaves and RF

Power Divider Has 16 Outputs

Mode DL 162030 is a broadband, 16-way power divider suitable for radar and satellite-communications (satcom) applications from 20 to 3000 MHz. The compact power divider is designed for systems requiring an even division of input ......More
Feb. 16, 2012

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Microwaves and RF

RF Resistor Tackles 400 W

The model G400B50W5 high-reliability flanged RF resistor from Anaren is now available from Richardson RFPD. This rugged, 400-W device features brazed construction and all beryllium-oxide (BeO) ceramic composition. The 50-Ω ......More
Feb. 16, 2012

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Microwaves and RF

PLL Synthesizers Extend To 6 GHz

Models ADF4151 and ADF4196 are phase-lock-loop (PLL) frequency synthesizer integrated circuits (ICs) that support low-noise signal-generation applications through 6 GHz. The model ADF4151 RFIC with fractional-N and integer-N circuitry works ......More

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