TY - JOUR
T1 - A low-cost printed CP patch antenna for RFID smart bookshelf in library
AU - Lau, Pui-Yi
AU - Yung, Kenneth Kin-On
AU - Yung, Edward Kai-Ning
PY - 2010/5
Y1 - 2010/5
N2 - This paper presents a small wideband circularly polarized patch antenna printed on the low-cost FR-4 material for radio-frequency-identification smart bookshelves in libraries. The antenna is composed of four top-loaded patches sequentially rotated with a phase difference of 90° and double shorted to the ground. It operates at a center frequency of 0.915 GHz. The impedance bandwidth (SWR <2) is 26.8%, the axial-ratio (AR) bandwidth (measured AR <3 dB) is 11.6%, and the 3-dB beamwidth is 115 °. The antenna gain is about 4 dBi, and the overall dimension is reduced by ∼60% in length, in comparison with that of the conventional sequential patch antenna. © 2006 IEEE.
AB - This paper presents a small wideband circularly polarized patch antenna printed on the low-cost FR-4 material for radio-frequency-identification smart bookshelves in libraries. The antenna is composed of four top-loaded patches sequentially rotated with a phase difference of 90° and double shorted to the ground. It operates at a center frequency of 0.915 GHz. The impedance bandwidth (SWR <2) is 26.8%, the axial-ratio (AR) bandwidth (measured AR <3 dB) is 11.6%, and the 3-dB beamwidth is 115 °. The antenna gain is about 4 dBi, and the overall dimension is reduced by ∼60% in length, in comparison with that of the conventional sequential patch antenna. © 2006 IEEE.
KW - Antenna array
KW - Circularly polarized (CP)
KW - Radio-frequency identification (RFID) antenna
KW - Sequentially rotated feeding
KW - Small patch antenna
KW - Wide-beamwidth antenna
UR - http://www.scopus.com/inward/record.url?scp=77951177860&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-77951177860&origin=recordpage
U2 - 10.1109/TIE.2009.2035992
DO - 10.1109/TIE.2009.2035992
M3 - RGC 21 - Publication in refereed journal
SN - 0278-0046
VL - 57
SP - 1583
EP - 1589
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 5
M1 - 5332285
ER -