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Microstrip parallel-line coupler to perform broadband optically controlled phase-shifting

✍ Scribed by M. El Khaldi; F. Podevin; A. Vilcot


Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
295 KB
Volume
47
Category
Article
ISSN
0895-2477

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✦ Synopsis


Abstract

This paper presents an optically controlled broadband phase‐shifter using a parallel‐line coupler, that takes advantage of high‐resistivity silicon photo‐absorption at 840 nm. A continuously variable phase‐shifting of 120° is achieved at 11 GHz with Δ|S~21~| < 5 dB and with |S~11~| < −15 dB in a large frequency band (6–15 GHz). © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 570–573, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21232