✦ LIBER ✦

A wideband planar inverted-F dielectric resonator antenna for RFID system applications

✍ Scribed by Ching-Fang Tseng; Cheng-Liang Huang; Cheng-Hsing Hsu

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 332 KB
Volume: 48
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.21616

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✦ Synopsis

Abstract

This wideband planar inverted‐F dielectric resonator antenna (DRA) is proposed. The antenna provides two resonant paths of different lengths in order to achieve 2.4‐ and 5.8‐GHz dual‐band for radio frequency identification (RFID) system applications. The impedance bandwidth with 10‐dB return loss (2:1 VSWR) is about 255 MHz (2300–2555 MHz) for the 2.45‐GHz band and 835 MHz (5595–6430 MHz) for the 5.8‐GHz band. The obtained circular polarization (CP) bandwidths, determined from 3‐dB axial ratio, are about 180 MHz (about 7.35%) and 380 MHz (about 6.55%) at 2.45 and 5.8 GHz, respectively. Good antenna gain and circular‐polarization radiation patterns are also observed. The measured results of the performance of the antenna are presented. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1302–1305, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21616

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