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Subsystems and Systems

A Compact High Power SSPA for Satellite Communication Applications

Development of the first compact 1000 W C-band SSPA for satellite up-link applications
Product Feature A Compact High Power SSPA for Satellite Communication Applications Advanced Microwave Technologies Inc., ADVANTECH Dorval, QC, Canada Today's emerging satellite broadband applications require high power amplifiers. In recent years, significant advances have been made in solid-state technology that have resulted in solid-state power amplifiers (SSPA) becoming a...
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Advanced RF Technologies for the Wireless Market

Detailed overview of the different architectures available for transceiver ICs with greater emphasis on near-zero IF configuration
Technical Feature Advanced RF Technologies for the Wireless Market Yvan Droinet Philips Semiconductors Caen, France Most products in the wireless world require more and more miniaturization. This incentive leads integrated circuit designers to develop innovative architectures with higher and higher integration levels. On the one hand, there is a...
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A New Spread-spectrum Measurement Method for Satellite Transponder In-orbit Testing

Introduction to a new measurement method for beginning-of-life and in-service testing of satellite transponders that utilizes spread-spectrum signals
A New Spread-spectrum Measurement Method for Satellite Transponder In-orbit Testing This article introduces a new measurement method for beginning-of-life and in-service testing of satellite transponders that utilizes spread-spectrum signals. The basics of this new method, which permit measurement of amplitude and group delay of a transponder channel, are presented....
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Wireless Telecommunications Testing with S-series Microwave Power Amplifiers

Introduction to a line of amplifiers optimized for wireless telecommunication test use
PRODUCT FEATURE Wireless Telecommunications Testing with S-series Microwave Power Amplifiers Amplifier Research Souderton, PA Amplifier Research offers a broad range of power amplifiers covering DC to 40 GHz with output power ranging from 1 to 10,000 W. While applications include electromagnetic compatibility (EMC) testing, RF component testing, physics (plasma...
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* Two Novel Radar Vehicle Detectors for the Replacement of a Conventional Loop Detector

Introduction to intrusive and non-intrusive radar vehicle detectors developed at 24 GHz
TECHNICAL FEATURE Two Novel Radar Vehicle Detectors for the Replacement of a Conventional Loop Detector In this article, intrusive and non-intrusive radar vehicle detectors, compatible with existing inductive loop detectors (ILD) without any modification of the communication algorithm, have been developed at 24 GHz. The intrusive detector is based...
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Adaptive Feedforward Amplifier Linearizer Using Analog Circuitry

Description of a typical feedforward architecture along with the simulation results of a compensation technique using the least mean square algorithm
TECHNICAL FEATURE Adaptive Feedforward Amplifier Linearizer Using Analog Circuitry Alfonso J. Zozaya, Eduard Bertran Albertí and Jordi Berenguer-Sau Dept. of Signal Theory and Communications Polytechnic University of Catalonia Barcelona, Spain Nowadays, feedforward is the most effective and broadly used linearization technique employed in modern multi-carrier communications systems. Different versions,...
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A Long Range View of Short Range Wireless Systems

In-depth review of current European activity, worldwide expansion and globally competing technologies within the field of short range wireless systems
EUROPEAN SUPPLEMENT A Long Range View of Short Range Wireless Systems Richard Mumford Microwave Journal European Editor The development of short range wireless systems, particularly Bluetooth and wireless local area networks (WLAN) has captured the industry's imagination, if not the market that was initially predicted. Bluetooth technology originated in...
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On the Direct Conversion Receiver -- A Tutorial

A detailed look at the characteristics of the direct conversion receiver
TUTORIAL On the Direct Conversion Receiver -- A Tutorial Increased pressure for low power, small form factor, low cost and reduced bill of materials in such radio applications as mobile communications has driven academia and industry to resurrect the direct conversion receiver. Long abandoned in favor of the mature...
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