A Two-Element Circularly-Polarized Antenna Array for UHF-Band RFID Reader Applications

다국어 초록 (Multilingual Abstract)

In this paper, we present a two-element circularly-polarized antenna array for UHF-band RFID reader applications. The antenna element in the array is a corner-truncated rectangular patch placed on a thick plastic-foam dielectric. The patch is fed on one of its edges by a microstrip line printed on a separate thin substrate. The array antenna is fed by a microstrip power divider. Parametric studies on the patch are carried out, from which an optimum design of a single antenna element is derived. The element spacing and the feed network of the array are investigated. A commercial electromagnetic software is employed in the analysis and design of the antenna. The designed array is fabricated and tested. Measurements show good performance characteristics of the fabricated antenna: a 11.2-㏈i gain, a reflection coefficient of -14 ㏈, an axial ratio less than 3 ㏈ over 3-㏈ beamwidths of 40 and 60 degrees on two principal planes.

목차 (Table of Contents)

• Abstract
• Ⅰ. Introduction
• Ⅱ. Antenna Design, Fabrication and Measurements
• Ⅲ. Conclusions
• References
• 저자소개

참고문헌 (Reference)

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