Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam

Kazuhide Hirose; Kazuhiko Hata; Hisamatsu Nakano

doi:10.1155/2020/2759312

International Journal of Antennas and Propagation (Jan 2020)

Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam

Kazuhide Hirose,
Kazuhiko Hata,
Hisamatsu Nakano

Affiliations

Kazuhide Hirose: College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan
Kazuhiko Hata: College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan
Hisamatsu Nakano: Science and Engineering, Hosei University, Tokyo 184-8584, Japan

DOI: https://doi.org/10.1155/2020/2759312
Journal volume & issue: Vol. 2020

Abstract

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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.

Published in International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Social Sciences: Transportation and communications: Cellular telephone services industry. Wireless telephone industry
Website: https://onlinelibrary.wiley.com/journal/8039

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