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Circuit model and full wave analysis of a compact wideband quadrature hybrid

✍ Scribed by Adarsh K. Jaiswal; Ahmed A. Kishk

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

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✦ Synopsis

Abstract

A printed, compact, and wideband quadrature hybrid is simulated and fabricated by utilizing the multi‐section technique for bandwidth enhancement and equivalent transmission line technique for size reduction. The compact quadrature hybrid has a size reduction of 50% as compared with the conventional quadrature hybrid. The compact hybrid achieves over 50% bandwidth at a centre frequency of 2 GHz. A circuit model and a full wave model are introduced and analyzed using Agilent Advanced design system. Excellent agreement between the simulated and the fabricated hybrid is achieved, which indicates that the circuit and full wave models are indeed a good representation of the fabricated compact wideband quadrature hybrid. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1650–1652, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22519

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