Microstrip patch antenna array for range extension of RFID applications
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Abbak, Mehmet and Tekin, İbrahim (2008) Microstrip patch antenna array for range extension of RFID applications. In: 2008 IEEE APS/URSI Conference, San Diego, Manchaster
Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4619086
In this paper, an UHF band 2X2 microstrip phased antenna array is designed for
extending the range of an RFID reader system. The phased antenna array operates
at the frequency of 867 MHz, as specified in Gen2 protocol European standards.
The phased antenna array has four microstrip patch antennas, three Wilkinson
power dividers and a transmission line phase shifter printed on the same Arlon
AD450 substrate with a dielectric constant of 4.5 with dimensions of 34x45 cm.
The phased array antenna has a measured directivity of 9.5 dB and the main beam
direction can be switched between the angles of ± 40 degrees with a 3dB
beamwidth of 90 degrees. The phased antenna array can be used to extend the
RFID system working range.
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