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Design of a dual-mode annular ring antenna with a coupling feed

✍ Scribed by Jae Hee Kim; Dae Woong Woo; Wee Sang Park

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 330 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24796

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✦ Synopsis

Abstract

A dual‐mode annular ring antenna for both global positioning system (GPS) and satellite digital multimedia broadcasting (S‐DMB) is designed. The proposed antenna consists of a coupling feed line and four slots on an annular ring patch. A gap between the feed line and the annular ring patch is used for an input impedance matching; the slots are used for adjusting the resonant frequency of the TM~21~ mode at the DMB frequency. The antenna was fabricated and measured. The antenna resonates at the GPS and DMB frequencies with suitable bandwidths. It has a broadside radiation pattern in the GPS band and a conical beam radiation pattern in the DMB band. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 3011–3013, 2009; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.24796

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