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IEICE TRANSACTIONS on Electronics

A Novel Layout Optimization Technique for Miniaturization and Accurate Design of MMICs

Shin CHAKI, Yoshinobu SASAKI, Naoto ANDOH, Yasuharu NAKAJIMA, Kazuo NISHITANI

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Summary :

This paper describes a novel layout optimization technique using electromagnetic (EM) simulation. Simple equivalent circuits fitted to EM simulation results are employed in this method, to present a modification guide for a layout pattern. Fitting errors are also investigated with some layout patterns in order to clarify the applicable range of the method, because the errors restrict the range. The method has been successfully adopted to an X-band low noise MMIC amplifier (LNA). The layout pattern of the amplifier was optimized in only two days and the amplifier has achieved target performances--a 35 dB gain and a 1.7 dB noise figure--in one development cycle. The effective chip area has been miniaturized to 4.8 mm2. The area could be smaller than 70% in comparison with a conventional layout MMIC.

Publication
IEICE TRANSACTIONS on Electronics Vol.E82-C No.11 pp.1960-1967
Publication Date
1999/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category
Low Power-Consumption RF ICs

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