Please use this identifier to cite or link to this item: https://doi.org/10.1109/TAP.2012.2230235
Title: Broadband circularly polarized beam-steering antenna array
Authors: Liu, C.
Xiao, S.
Guo, Y.-X. 
Bai, Y.-Y.
Wang, B.-Z.
Keywords: Antenna array
beam steering
butler matrix
circular polarization
rotation technique
wideband antennas
Issue Date: 2013
Source: Liu, C., Xiao, S., Guo, Y.-X., Bai, Y.-Y., Wang, B.-Z. (2013). Broadband circularly polarized beam-steering antenna array. IEEE Transactions on Antennas and Propagation 61 (3) : 1475-1479. ScholarBank@NUS Repository. https://doi.org/10.1109/TAP.2012.2230235
Abstract: A wideband circular polarized (CP) switched-beam patch antenna array is presented in this communication. The switched-beam system consists of four two-section branch-line couplers, two wideband 45 phase shifters and 1 4 proximity-coupled L-probe feeding CPmicrostrip patch antenna array.With such an arrangement, the proposed array can obtain a wide axial ratio (AR) bandwidth than that of conventional switched-beam CP antenna array. Measured results showed this array has an impedance bandwidth over a frequency range of 4.04-5.78GHz % for dB and AR bandwidth from 4.3 to 5.75 GHz % for dB when the main beam of array is scanned to different four directions. © 1963-2012 IEEE.
Source Title: IEEE Transactions on Antennas and Propagation
URI: http://scholarbank.nus.edu.sg/handle/10635/55235
ISSN: 0018926X
DOI: 10.1109/TAP.2012.2230235
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