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Industry News

A Distributed Amplifier for 40 Gbps Fiber-optic Communications Systems

Description of a distributed amplifier for a LiNbO<sub>3</sub> modulator driver using double-doped AlGaAs/AlGaAs pseudomorphic HEMTs
Technical Feature A Distributed Amplifier for 40 Gbps Fiber-optic Communications Systems H. Shigematsu, M. Sato, T. Hirose and Y. Watanabe Fujitsu Laboratories Ltd. Atsugi, Japan In recent years, the rapid development of multimedia communications has generated a strong demand for high speed and high capacity transmission systems. Wavelength-division multiplexing...
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Design of a Predistortive High Power Amplifier Using Carrier Complex Power Series Analysis

Introduction to a new carrier complex power series for linearizing the distortion effects of a high power amplifier
Technical Feature Design of a Predistortive High Power Amplifier Using Carrier Complex Power Series Analysis In this article, a new carrier complex power series for linearizing the distortion effects of a high power amplifier (HPA) is proposed. The amplitude (AM-to-AM) and phase (AM-to-PM) nonlinear characteristics of the HPA are...
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The Use of Intermodulation Tables for Mixer Simulations

Use of intermodulation table files to accurately predict the output frequency content of an up-converting or down-converting mixer in system simulations
Technical Feature The Use of Intermodulation Tables for Mixer Simulations The use of intermodulation table (IMT) files can lead to accurate prediction of the output frequency content of an up-converting or down-converting mixer in system simulations. For best results, custom IMT files should be constructed from mixer output spectrum...
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Output Power Improvement of a Push-push FET DRO by Using an Additional DR

Measurement of the output power level and phase noise property of nine conventional push-push dielectric resonator oscillators (DRO) incorporating an additional DR
Technical Note Output Power Improvement of a Push-push FET DRO by Using an Additional DR In this article, the output power level and phase noise properties of nine conventional push-push dielectric resonator oscillators (DRO) have been experimentally investigated while adding an identical dielectric resonator (DR) at the drain ports....
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Calculation and Measurement of Lock Time in a Phase-locked Loop Frequency Synthesizer

Presentation of the equations involved in predicting lock time and transient response of synthesizer phase-locked loops
Technical Features Calculation and Measurement of Lock Time in a Phase-locked Loop Frequency Synthesizer Lock Time is an Important Design Parameter Florian Krug Technische Universitaet Muenchen Muenchen, Germany Jean Wilwert Infineon Technologies Muenchen, Germany The 'Wireless World' (radio and television broadcast, cordless phones, cellular radio communication, remote controls, wireless...
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New Products

New Products COMPONENTS Voltage Variable Attenuator The model AV141-321 Gallium Arsenide (GaAs) IC PHEMT voltage variable attenuator provides high end performance from 2.7 to 4.0 GHz. The attenuator is designed for use in power control applications for 3.5 GHz fixed wireless LAN applications. It has a minimum attenuation of...
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Around the Circuit

Around the Circuit INDUSTRY NEWS Micronetics Wireless Inc. has entered into an agreement with the principal shareholders of Enon Microwave Inc. providing for them to vote in favor of a merger of the two companies. The proposed transaction is subject to certain contingencies and expected to be completed before...
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New Literature

New Literature New Product Brochure This new product brochure features the company's Arclad®, ARclean™ and ARclear™ PSA bonding products. The brochure also includes detailed product specifications and tape constructions. Adhesives Research Inc., Glen Rock, PA (800) 445-6240. Circle No. 200 Product Catalog This product catalog addresses technical specifications, design...
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Web Update

Web Update Wireless Components This Web site offers components for wireless, space, defense automotive, health and more. Products include Xinger® surface-mounts, RF power-brand resistive products, AdrenaLine™ splitter/combiners, ferrite parts and Amitron-brand precision ceramics. The site features full-line searches, S-parameters, specs, rep/distributor locator, on-line RFQ, literature and sample forms. Anaren...
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Workshops & Courses

Workshops & Courses Advanced Design Seminars Topics : The company's new spectral-domain system simulator, SPECTRASYS, is presented. Focus will be on practical implementations of systems using SPECTRASYS to detect signal peak paths, conducted emissions, adjacent channel distortion and channel power measurements. Site : See www.eagleware.com Dates : April 2-May...
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