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Design of RFID reader antennas for UHF RFID handheld systems

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3 Author(s)
Jaehoon Choi ; Dept. of Electrics & Comput. Eng., Hanyang Univ., Seoul, South Korea ; Uisheon Kim ; Taeik Kim

Two types of compact wideband UHF reader antennas for handheld applications are proposed. To overcome the narrow bandwidth of a compact patch antenna, an aperture-coupled feeding technique and artificial magneto-dielectric structure are utilized. The proposed antennas have compact sizes of 100 mm × 100 mm × 9.6 mm and 100 mm × 100 mm × 3.2 mm, respectively. In spite of small size, proposed antennas yield the wideband impedance and good axial ratio characteristics. Due to the compact size and wide bandwidth, the proposed antennas are suitable candidates for a handheld RFID reader.

Published in:

Antenna Technology (iWAT), 2011 International Workshop on

Date of Conference:

7-9 March 2011