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Miniaturized microstrip branch-line couplers with the approach of π-model

✍ Scribed by Ching-Wen Tang; Ming-Guang Chen

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 199 KB
Volume: 50
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23061

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✦ Synopsis

Abstract

The newly method to implement the branch‐line couplers has been proposed in this letter. Using the approach of π‐model, the size of branch‐line coupler can be miniaturized easily. Especially, the proposed coupler without using any lumped element can be easily fabricated on the printed circuit board. In this study, the proposed couplers achieve a physical size reduction of almost 63% with the performance competed with the conventional one. Moreover, the measured frequency responses show good agreement with the theoretical results. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 314–316, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23061

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