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Industry News

UK Scientists Investigate Cosmic Rays and Microchips

UK neutron scientists are tackling the challenge of cosmic radiation and its damaging effect on sensitive microchips in the aviation industry in the drive to develop more robust electronic equipment. Accelerated testing of microelectronic components at the Science and Technology Facilities Council’s (STFC) ISIS neutron research centre replicates the...
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Around the Circuit

Industry News The IEEE International Reliability Physics Symposium’s (IRPS) 46 th annual conference will feature new technical sessions and invited papers on the latest microelectronic reliability issues. This year’s IRPS takes place from April 27 through May 1, 2008, at the Hyatt Regency Phoenix at Civic Plaza in Phoenix,...
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Phase Noise: Theory versus Practicality

Modern electronics rely on fast low noise time bases for a variety of applications. As a result, oscillator designers must always push the limit of low noise design. One of the major hurdles in this endeavor is phase noise. Phase noise is an undesirabl...
Modern electronics use time bases for a wide variety of applications. Communications systems rely on time bases for modulation and demodulation of data, GPS systems rely on them for accurate positioning, and a host of other applications rely on time bases to manage the flow of data within their...
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A Novel N-way Distributed Doherty Amplifier with Improved Efficiency at High PAR Signals

A novel three-way distributed Doherty power amplifier, with improved efficiency at high peak-to-average ratio (PAR) signals such as W-CDMA and OFDM, is presented. This distributed Doherty amplifier consists of one main amplifier and two peaking amplifi...
In modern digital wireless communication systems, such as IS-95, PCS, W-CDMA, OFDM and so on, power amplifiers have progressed towards having a wide bandwidth and a large number of carriers. Recently, orthogonal frequency division multiplexing (OFDM) modulation has become an attractive technique for transmitting information efficiently within a limited...
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A Broadband Class-E Parallel-circuit VHF Power Amplifier with High Harmonic Suppression

Class-E power amplifiers (PA) offer high efficiency. However, with broadband load networks, their harmonic performance degrades. This article introduces a practical implementation to achieve high harmonic suppression in a broadband class-E amplifier design by combining a parallel-circuit load network with a reactance compensation technique. A three-stage power amplifier is...
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Standard Cell-based Modular CMOS Transceiver IC Designs

For an RFIC company, a modular RFIC standard cell approach will shorten the design cycle and reduce the design risks.
The speed to market is critical to the success of any RFIC company. With more and more wireless standards proposed and adopted, the design cycles are actually getting shorter. It puts a lot of pressure on the RFIC team to come up with the design faster. In the digital...
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