Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam

Two types of modified crossed-wire antennas are investigated to enhance a circularly polarized (CP) wave bandwidth. The wire length of each antenna is increased twice as long as that of the original antenna. First, a bent-type antenna is analyzed using the method of moments. It is found that the CP...

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Bibliographic Details
Published in:International journal of antennas and propagation Vol. 2020; no. 2020; pp. 1 - 7
Main Authors: Hirose, Kazuhide, Nakano, Hisamatsu, Hata, Kazuhiko
Format: Journal Article
Language:English
Published: Cairo, Egypt Hindawi Publishing Corporation 2020
Hindawi
John Wiley & Sons, Inc
Wiley
Subjects:
Antennas
Bandwidths
Circular polarization
Investigations
Method of moments
Satellite communications
Wire
ISSN:1687-5869, 1687-5877
Online Access:Get full text
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Summary:Two types of modified crossed-wire antennas are investigated to enhance a circularly polarized (CP) wave bandwidth. The wire length of each antenna is increased twice as long as that of the original antenna. First, a bent-type antenna is analyzed using the method of moments. It is found that the CP wave bandwidth for a 3 dB axial ratio criterion is twice as wide as that of the original antenna. Next, a spiral-type antenna is analyzed. It is revealed that the antenna shows a CP wave bandwidth of 28%, which is wider than that of the original antenna by a factor of 3.5. The analysis results are validated by experimental work.
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ISSN:1687-5869
1687-5877
DOI:10.1155/2020/2759312