Title: A circular CPW-fed slot antenna resonated by the circular loop for broadband circularly polarized radiation
Authors: Deng, I-Chung
Ke, Qing-Xiang
Lin, Ren-Jie
King, Yueh-Tsu
Department of Electronics Engineering and Institute of Electronics
Keywords: circular polarization;CPW-fed;circular loop
Issue Date: 1-May-2008
Abstract: The coplanar waveguide (CPW) fed circular slot antenna, resonated by the circular loop with a narrow opening, is designed for obtaining broadband circularly polarized (CP) radiation. The length of protruded signal strip (L-S) is utilized to adjust the phase difference between two orthogonal field components in the circularly polarized waves. In this design, the proposed antenna has the minimum return loss of -56.5 dB at the frequency of 2.403 GHz. The impedance and 3 dB axial-ratio bandwidths can reach up to 740 MHz or 33.3% and 390 MHz or 16.6%, respectively. In addition, the simulated results are about as good as those of the measured ones. (C) 2008 Wiley Periodicals, Inc.
URI: http://dx.doi.org/10.1002/mop.23359
ISSN: 0895-2477
DOI: 10.1002/mop.23359
Volume: 50
Issue: 5
Begin Page: 1423
End Page: 1426
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