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Passive Components

Research@mwjournal.com

<I>Microwave Journal</I>'s second annual overview of microwave technology research projects currently being investigated by European academic institutions and commercial organizations
September 1, 2002
Today's investment in and commitment to meaningful, commercially viable research will determine the shape and prosperity of tomorrow's microwave industry. Following its introduction in 2001 the second Microwave Journal guide to European research projects highlights the studies being undertaken by academic and commercial establishments to develop the innovations that...
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SAW Voltage-controlled Oscillators

Presentation of applications that use voltage-controlled surface acoustic wave oscillator technology to provide high performance telecom solutions
September 1, 2002
Voltage-controlled surface acoustic wave (SAW) oscillators (VCSO) have been used for many years in both commercial and military applications. The low phase noise allows frequency multiplication to higher frequencies for use as sources, such as local oscillators in radar and other microwave systems. The excellent tuning linearity provides outstanding...
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Design of a Generic 2.5 W, 60 Percent Bandwidth, C-band MMIC Amplifier

Description of the design and test data of a generic 2.5 W, two-stage, C-band MMIC power amplifier
August 1, 2002
During the past decade, there has been significant progress in monolithic power amplifiers operating at RF and microwave frequencies over narrow and broadbands for both commercial and military applications. For numerous applications, including handsets, VSAT and transmit/receive modules, these amplifiers are produced in large quantities using MESFET, HBT and...
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Internally Terminated 12-throw Electromechanical Switches for Matrix Applications

Presentation of a single-pole 12-throw internally terminated electromechanical switch that forms the basis for a line of N x 12 switch matrix assemblies
July 1, 2002
Electromechanical distribution systems (switch matrices) are used in both commercial applications and military systems. Computer control of these switch matrices facilitates their use in automated testing and in those systems requiring remote control of switching functions. The newest product in Dow-Key's line of electromechanical switches is a single-pole 12-throw...
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A Frequency Discriminator With a Small Footprint

Introduction to a compact, high performance dual-speed delay-line discriminator
June 1, 2002
Product Feature A Frequency Discriminator With a Small Footprint Merrimac Industries Inc. West Caldwell, NJ Delay-line frequency discriminators have long been fundamental components in radar warning receivers, instantaneous frequency measurement receivers (IFM) and angle of arrival interferometers. They offer a high performance alternative to I and Q networks in...
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Low Cost Millimeter-wave Packaged MMICs

A surface-mount device-packaged MMIC chipset for 26 GHz point-to-point and point-to-multipoint radio links is featured
June 1, 2002
Cover Feature Low Cost Millimeter-wave Packaged MMICs United Monolithic Semiconductors S.A.S. Orsay Cedex, France Millimeter-wave technology is being recognized as having potential for emerging markets, such as broadband radio links for cellular base station backhaul networking and automotive safety systems. For such development to occur, however, the requested volumes...
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LDMOS Linearity and Reliability

Introduction to a self-aligned shadow isolated LDMOS device designed to improve linearity and reliability
June 1, 2002
Technical Features LDMOS Linearity and Reliability Laterally diffused metal-oxide-semiconductor (LDMOS) devices have been available as high power, low frequency amplifiers for almost three decades. The original devices had problems with linearity and reliability. More recent developments have improved the device performance and make LDMOS suitable in cellular base station...
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Q- and V-band MMIC Low Noise Amplifiers

Demonstration of a design method for Q- and V-band low noise amplifiers based on a distributed pHEMT model and exact simulation
June 1, 2002
Technical Feature Q- and V-band MMIC Low Noise Amplifiers This article describes MMIC low noise amplifiers for millimeter-wave applications using 0.15 ยต m pHEMT technology. The design emphasis is on the active device model. The deficiency of conventional device models is identified. A distributed device model has been adapted...
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An EM Simulator for MEMS and Real Life MMICs

Introduction to a low cost software package used to address the 3D EM analysis of structures involving complex substrates as encountered in common MMIC design
May 1, 2002
Product Feature An EM Simulator for MEMS and Real Life MMICs MEM Research Spoltore, Pescara, Italy Generally speaking, there are two large families of commercially available electromagnetic (EM) solvers. The first one is a general-purpose set, covering the analysis of arbitrarily shaped structures and using finite elements or differences,...
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System-level Filter Design Methodology for WLAN-OFDM Transceivers

Presentation of system-level filter design methodology to efficiently constrain the implementation loss and complexity of a digital orthogonal frequency division multiplex (OFDM) transceiver
May 1, 2002
Technical Feature System-level Filter Design Methodology for WLAN-OFDM Transceivers Orthogonal frequency division multiplex (OFDM)-based WLAN standards target wireless communications in the 5 GHz band for consumer multimedia applications. Digital OFDM transceiver ICs, based on frequency domain equalization, have been presented. However, it is still a challenge to design a...
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