A Loop-Line Antenna with Enhanced Bandwidth of Circular Polarization-Reference-Cited by-同舟云学术

A Loop-Line Antenna with Enhanced Bandwidth of Circular Polarization

Published:2020-02-26 Issue: Volume:2020 Page:1-6
ISSN:1687-5869
Container-title:International Journal of Antennas and Propagation
language:en
Short-container-title:International Journal of Antennas and Propagation

Author:

Hirose Kazuhide¹^ORCID,Nakatsu Motoshi¹,Nakano Hisamatsu²

Affiliation:

1. College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan

2. Science and Engineering, Hosei University, Tokyo 184-8584, Japan

Abstract

We investigate a circularly polarized (CP) transmission-line antenna composed of loop radiation elements, called a loop-line antenna. To enhance the CP wave bandwidth, an isolated loop radiation element is first analyzed using the method of moments. It is found that a CP wave bandwidth for a 3 dB axial-ratio criterion has a maximum value of 8%. On the basis of the analysis results, we design the loop-line antenna. It is found that the antenna shows a CP wave bandwidth of 6%, which is twice as wide as that of a conventional loop-line antenna. The analysis results are verified with experimental ones. In addition, a condition for wideband CP radiation is discussed and found to be a composite radiation element consisting of two CP loops.

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Link

http://downloads.hindawi.com/journals/ijap/2020/5216132.pdf

Reference7 articles.

1. Microstrip linear array with polarisation control

2. Analysis and measurements for improved crank-line antennas

3. Fundamental Study on Novel Loop-Line Antennas Radiating a Circularly Polarized Wave

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1. A Loop Antenna Array with Enlarged Axial-Ratio Bandwidth and Reduced Cross-Polarized Radiation;2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI);2022-07-10

2. Bent and Branched Microstrip-Line Antennas for Circular Polarization;Applied Sciences;2022-02-07

3. Design and Analysis of Loop Antenna for Wideband Operations;2022 4th International Conference on Smart Systems and Inventive Technology (ICSSIT);2022-01-20

4. A loop antenna with quasi‐two sources for circular polarisation;Electronics Letters;2022-01-04