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A new type of microstrip coupler with complementary split-ring resonator

✍ Scribed by Kai-yu Liu; Chao Li; Fang Li

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
258 KB
Volume
49
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A new type of microstrip coupler with complementary split‐ring resonator (CSRR) is proposed. The characteristic impedance of the even mode can be enhanced by etching CSRR structure in the grounded plane of a conventional microstrip parallel‐coupled coupler. This results in a higher degree of coupling. Based on the analysis of the odd and even modes, a new type of microstrip coupler was designed. The results of simulation and measurement show that the new coupler achieves a high degree of coupling (3 dB coupling) over a wide frequency band (38.1% relative bandwidth). © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1613–1616, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22522

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