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| Presentation | 2023-01-19 14:55 A relationship between a height and a fractional bandwidth of a wideband ring microstrip antenna fed by an L-probe Atsuki Kawahashi, Sakuyoshi Saito, Yuichi Kimura (Saitama Univ.)  AP2022-185 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents a relationship between a height and a fractional bandwidth of a ring microstrip antenna fed by an L-probe. The proposed antenna consists of a ring-shaped radiating patch element arranged over an L-shaped feeding probe on a ground plane. Air-layers are placed among the ring patch, the L-probe, and the ground plane. The ring patch is excited by the L-probe with electro-magnetic couplings. The design frequency of the proposed antenna is around 0.6 GHz. It is known that a microstrip antenna fed by an L-probe exhibits wideband performance when its height is set to approximately 0.1 wavelengths of the operating frequency. In this paper, broadband designs of the proposed antenna with a height of less than 0.1 wavelengths of the center frequency are investigated by the simulation. It reveals that a fractional bandwidth of the designed antenna with a height of less than 0.08 wavelengths of the center frequency is rapidly increased in proportion to the antenna height. For the antenna height of 0.08 to 0.17 wavelengths of the center frequency, the fractional bandwidth of the proposed antenna with less than -7.4 dB reflection is slowly increased in the range of approximately 33% to 40%. It is concluded that the ring patch antenna fed by an L-probe exhibits good broadband characteristics when the antenna height is above about 0.08 wavelengths of the center frequency. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | planar antenna / microstrip antenna / wideband antenna / L-probe / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 339, AP2022-185, pp. 45-50, Jan. 2023. | |
| Paper # | AP2022-185 | |
| Date of Issue | 2023-01-12 (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) | |
| Download PDF | AP2022-185 |
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| Conference Information | |
| Committee | AP WPT |
| Conference Date | 2023-01-19 - 2023-01-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio propagation, Wireless transmission technology, Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2023-01-AP-WPT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A relationship between a height and a fractional bandwidth of a wideband ring microstrip antenna fed by an L-probe |
| Sub Title (in English) | |
| Keyword(1) | planar antenna |
| Keyword(2) | microstrip antenna |
| Keyword(3) | wideband antenna |
| Keyword(4) | L-probe |
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| 1st Author's Name | Atsuki Kawahashi |
| 1st Author's Affiliation | Saitama University (Saitama Univ.) |
| 2nd Author's Name | Sakuyoshi Saito |
| 2nd Author's Affiliation | Saitama University (Saitama Univ.) |
| 3rd Author's Name | Yuichi Kimura |
| 3rd Author's Affiliation | Saitama University (Saitama Univ.) |
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| Speaker | Author-1 |
| Date Time | 2023-01-19 14:55:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2022-185 |
| Volume (vol) | vol.122 |
| Number (no) | no.339 |
| Page | pp.45-50 |
| #Pages | 6 |
| Date of Issue | 2023-01-12 (AP) |
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