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Dual polarized reader antenna array for RFID application

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3 Author(s)
Padhi, S.K. ; Molecular Sci. Div., CSIRO, Melbourne, Vic., Australia ; Karmakar, N.C. ; Law, C.L.

This paper presents the design and development of a compact dual linearly polarized aperture coupled microstrip patch antenna array at S-band for RFID reader applications. The 2/spl times/2 array uses two symmetric dog-bone shaped coupling aperture. The prototype array yields 14.6 dBi peak gain, 36/spl deg/ half-power beam width (HPBW) in both E and H-planes, 28 dB cross-polarization levels and an isolation better than 35 dB between the two polarization at the designed frequency bandwidth. These performances make the antenna very much suitable for RFID reader applications.

Published in:

Antennas and Propagation Society International Symposium, 2003. IEEE  (Volume:4 )

Date of Conference:

22-27 June 2003