Summary
International Symposium on Antennas and Propagation
2006
Session Number:1E2a
Session:
Number:1E2a-1
Design of the Circularly Polarized UHF RFID Reader Antenna with High Isolation
Hae Won Son, Jung Nam Lee, Gil-Young Choi, Young Ki Cho,
pp.1-3
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
A new RFID (Radio Frequency Identification) reader antenna with high isolation is considered. The antenna consists of a pair of patch radiators apart which are fed by 90? hybrid couplers. The efficient structure and proper arrangement of two radiators as well as feed points are proposed to achieve good isolation between transmit and receive ports. The proposed design minimizes the distance between two patch radiators for the required isolation level, and reduces the overall size of the RFID reader antenna.