IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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A miniaturized 10/24-GHz rat-race coupler using synthetic transmission lines on glass substrate
Sen WangBo-Zong HuangZi-Kang Li
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2011 Volume 8 Issue 17 Pages 1425-1430

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Abstract

This paper presents a miniaturized 10/24-GHz rat-race coupler using synthetic transmission lines on a glass substrate. Compared to a standard CMOS process, the proposed CMOS-compatible glass substrate features lower substrate losses and thicker metal layers. The area-consuming transmission line layouts are implemented by the meandered synthetic transmission lines with high slow-wave factors and low losses. The coupler based on the synthetic TLs is designed, fabricated, and verified. Good agreement between the simulation and measurement is also observed. The chip size is merely 2.5 × 2.2mm2 which is comparable to on-chip levels.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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