Paper Abstract and Keywords |
Presentation |
2022-01-21 12:40
Design of a Circularly-polarized Crossed-slot Square-Arrangement Array Antennas on Alternating-phase Feed Parallel-plate Waveguide Yuta Ishikawa, Takashi Tomura, Jiro Hirokawa (Tokyo Tech) AP2021-149 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
When adjacent rectangular waveguides are alternating-phase fed, the field distribution is maintained even though the structure becomes a parallel-plate waveguide by removing the shared side walls. If the slots are offset from each other at intervals of a half guided wavelength, undesired second-order lobes are radiated, so we propose a structure in which no offset slots are excited by metal posts. A crossed-slot layer is added for circularly-polarization. We introduce a structure in which the equivalent circuit for the element is represented only by a parallel conductance both for the feeding and radiating parts. The input conductance of an array excited by a standing wave is expressed as the sum of the parallel conductances of the elements, which simplifies the design. As a result of the design, the axial ratio is 0.3 dB, the realized gain is 19.7 dBic, and the antenna efficiency is 94.1 % in the 4x4-slot array at the design frequency of 5.8 GHz. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
slot array antenna / alternating-phase feed / parallel-plate waveguide / circularly-polarization / crossed-slot / metal post / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 330, AP2021-149, pp. 80-85, Jan. 2022. |
Paper # |
AP2021-149 |
Date of Issue |
2022-01-13 (AP) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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AP2021-149 |
Conference Information |
Committee |
AP WPT |
Conference Date |
2022-01-20 - 2022-01-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kenmin-Fureai-Kaikan |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Radio propagation, Wireless transmission technology, Antennas and Propagation |
Paper Information |
Registration To |
AP |
Conference Code |
2022-01-AP-WPT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of a Circularly-polarized Crossed-slot Square-Arrangement Array Antennas on Alternating-phase Feed Parallel-plate Waveguide |
Sub Title (in English) |
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Keyword(1) |
slot array antenna |
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alternating-phase feed |
Keyword(3) |
parallel-plate waveguide |
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circularly-polarization |
Keyword(5) |
crossed-slot |
Keyword(6) |
metal post |
Keyword(7) |
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1st Author's Name |
Yuta Ishikawa |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
2nd Author's Name |
Takashi Tomura |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
3rd Author's Name |
Jiro Hirokawa |
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Tokyo Institute of Technology (Tokyo Tech) |
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Speaker |
Author-1 |
Date Time |
2022-01-21 12:40:00 |
Presentation Time |
25 minutes |
Registration for |
AP |
Paper # |
AP2021-149 |
Volume (vol) |
vol.121 |
Number (no) |
no.330 |
Page |
pp.80-85 |
#Pages |
6 |
Date of Issue |
2022-01-13 (AP) |
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