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Microwave Journal

July 2010

July 2010 Issue

Volume: 0
Edition: 7

Cover Feature

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Technical Features

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A Thin, Low-profile Antenna Using a Novel High Impedance Ground Plane

The size of the antenna for a given application does not depend purely on the technology, but on the laws of physics where the antenna size with respect to the wavelength has the predominant influence on the radiation characteristics. With modern day communication devices becoming smaller and lighter, demand...
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Special Reports

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The Coming of Age of the Software Communications Architecture

The idea of the "Software-Defined Radio" (SDR) has been circulating in industry and academia for almost 20 years, the term having been coined by Joe Mitola in a 1992 paper. 1 Since that time, many commercial and defense-oriented radio SDR products have been developed and released, most using basic...
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The Puzzler - July 2010

Software & Design Download the Puzzler (PDF) Across 5 An iterative process of selectively refining the finite element mesh based on the results from a previous solution (2 words) 11 Radio in which some or all of the physical layer functions are software defined (3 words) 12 A class...
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Tutorial

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Design of Solid-state, Wideband, High-power Microwave Amplifiers for Radiated Immunity Testing

This article illustrates how the requirements for amplifiers used in immunity testing are dictated by various EMC standards. A case is made for using solid-state devices rather than tubes. An overview of new transistor technologies is included, showing...
EMC standards are created to verify the reliability of electronic equipment. The standards need not only dictate the test levels and requirements, but must specify test equipment, configuration and requirements. There exist countless possible RF threats, usually in the form of transmitters, most of which are narrow band. Because...
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Product Features

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Planar Antenna Simulation in AXIEM

AXIEM™, a 3D planar electromagnetic (EM) simulator from AWR Corp., was first announced in 2007 with innovative technology to solve large, complicated problems with unprecedented speed and accuracy. Released as an integral part of AWR's design environment, AXIEM provided designers with the ability to simulate large problems (more than...
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Ideal Solution for EMI

As the demand for energy efficiency increases, more electronics are being designed with switching regulators in place of linear regulators. Power systems with multiple switching regulators are becoming commonplace; as the number of regulators increases, the impact of electromagnetic interference (EMI) also grows. One of the simplest, most cost-effective...
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iFilter™ Software

iFilterSoftwareAWR Corp.'s iFilter technology was developed specifically for synthesis of lumped-element and distributed filters. iFilter's intuitive user interface enables users to quickly and easily design filters, connect them directly to circuitry, and make optimization trade-offs that positively impact their designs.


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HMC641LC4 GaAs pHEMT MMIC SP4T Switch

hmc641lc4_100Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, announces the release of a ceramic SMT packaged GaAs pHEMT SP4T (Single Pole, Four Throw) MMIC Switch which is ideal for industrial sensors, test and measurement, microwave radio, military EW and space applications from DC to 20 GHz.


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SMPXXXX-040LF PIN Diodes

New PIN diodes in an industry standard 0402 packaging technology for handset, WLAN, CATV Satcom, land mobile radios, infrastructure, T/R and switching applications.
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HMC913LC4B SDLVA

New 0.6 to 20 GHz SDLVA Features RF Limited Inputs & 250 V ESD Rating. 4 x 4 mm SMT Package is Ideal for Space & Power-Constrained Applications.
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AWR Connected™ for Cadence® Allegro®

CadenceAllegroAWR Connected™ for Cadence® Allegro® enables PCB and RF co-design, simplifying the design process for high performance printed circuit board (PCB) design and significantly shortening cycle times. AWR Connected for Cadence Allegro is an interface between Cadence's Allegro products.


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HMC-T2240 Synthesized Signal Generator

hmc-t2220_100Hittite Microwave Corporation, the world class supplier of complete MMIC based solutions for communication & military markets, is announcing our newest instrumentation product, the HMC-T2240. Priced at only $19,498.00, the HMC-T2240 is a 10 MHz to 40 GHz Synthesized Signal Generator which provides the highest output power, lowest harmonic levels and broadest frequency range compared with any signal generator of its size and cost.


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Anritsu ‘E’ Series Handheld Analyzers

MT8212E_Frontview100Anritsu Company introduces an on-screen coverage mapping option for its “E” Series Spectrum Master™, Site Master™ and Cell Master™ handheld analyzers. The option has been developed to help wireless service providers, public safety users, land mobile radio operators and government officials verify system coverage and perform spectrum clearing before installing new radio services.


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RO4460™ Prepreg and RO4360™ Laminates

4460prepregRogers Corporation has developed the perfect prepreg match to its popular RO4360™ laminates: RO4460™ prepregs. Both materials feature consistent dielectric constant (Dk) of 6.15 ± 0.15 and low dielectric loss of 0.003 at 2.5 GHz. Together, they form an ideal system for fabricating compact, cost-sensitive multilayer amplifiers, antennas, and other high-frequency circuits where space is at a premium.


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New Products

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New Waves: Software and Design

Design Software Agilent recently announced tools for circuit-level modeling through system verification for general RF/uW, 4G Comms and aero/defense applications including SystemVue 2010.01 and Genesys 2010.05. These software platforms add X-parameter support and move X-parameters beyond RF into system-level design. The nonlinear model support provides convenient and reliable design...
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Departments

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Universities Join UK Industrial Design Coalition

Thirteen leading UK universities have joined with British Design Innovation (BDI)—the trade organisation for leading industrial design, service design and innovation consultancies—to form a national University Design Industry Partnership Scheme (UDIPS), in a bid to create world-changing innovations, products and processes. The scheme underscores the value private sector industrial...
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MarketWatch

The escalated Radio Access Network (RAN) data rates for 4G networks are placing new demands on infrastructure and supporting hardware, requiring significant bandwidth upgrades (anywhere from 50 to 200 Mbps) to base stations and the backhaul layer. Aside from capacity, another less apparent impact relates to the shift to...
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Around the Circuit

Industry News M/A-COM Technology Solutions Inc ., a supplier of semiconductors, components and subassemblies for use in RF, microwave and millimeter-wave applications, and Mimix Broadband Inc . jointly announced that their respective corporate parents have signed a definitive merger agreement that will add Mimix and its subsidiaries to the...
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Catalog Update

Express Distribution Products Catalog This edition is packed full of Aeroflex/Weinschel products that can be shipped overnight via Argosy Component Sales. Express products include fixed attenuators (high power also), adapters, power splitter/dividers, terminations and DC blocks. This catalog also includes programmable attenuators; connector systems (Planar Crown® and Planar Blindmate®);...
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EMI Protection for Communication Systems

In recent years the protection of communication services operating in the same adjacent channels has become more and more challenging. Communication systems need to be protected from natural and man-made interference. Electromagnetic interference (EMI) can be radiated or conducted, intentional or unintentional. Understanding physical characteristics of wave propagation is...
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