A two-square-aperture antenna excited by a probe on rectangular ground plane with elliptical parasitic patch for UHF-RFID reader

Suwalak, Rattapong; Phongcharoenpanich, Chuwong

doi:10.1109/ECTICON.2008.4600434

A two-square-aperture antenna excited by a probe on rectangular ground plane with elliptical parasitic patch for UHF-RFID reader

Author(s)

Suwalak, Rattapong

Phongcharoenpanich, Chuwong

Date Issued

October 6, 2008

Type

Conference Paper

DOI

10.1109/ECTICON.2008.4600434

Abstract

This paper presents a two-square-aperture antenna excited by a probe on rectangular ground plane with elliptical parasitic patch to radiate circularly polarized unidirectional beam. This antenna is proposed for installing at the reader of the Radio Frequency Identification (RFID) at ultra High Frequency (UHF) band. The UHF-RFID has the bandwidth from 920 MHz to 925 MHz, and the center frequency is 923 MHz. The antenna structure is simple because of using the single probe to feed the aperture antenna for circular polarized radiation. The pattern is unidirectional beam with the directivity of 8.93 dBic and axial ratio of 0.10 dB at the center frequency. The obtained simulated bandwidth is 24 MHz. ©2008 IEEE.

Citation

5th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology Ecti Con 2008, 1, 309-312, 2008