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| Presentation | 2021-02-19 15:15 Simple small diversity antenna switching four states by using two elements Kengo Nishimoto (Mitsubishi Electric), Ryosuke Kobayashi (Mitsubishi Electric Engineering), Toyohisa Tanaka, Yasuhiro Nishioka, Yoshio Inasawa (Mitsubishi Electric)  AP2020-130 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A novel simple method of realizing four-branch switching diversity by a small two-element antenna array is proposed. The proposed antenna consists of a two-element antenna array, a decoupling circuit and two phase-shifters. The proposed method reduces the circuit loss by decreasing the number of lumped elements and phase shifters compared with the conventional antenna. The decoupling circuit, which is composed of four susceptances, not only decreases the antenna coupling, but also makes the excitation amplitudes of the two antenna elements equal. By switching the phase shift of the phase shifters and switching two feeding ports, the excitation phase difference between the two antenna elements changes by every 90°, so that the four-branch switching diversity is realized. To validate the effectiveness of the proposed antenna, we design a small two-element folded inverted-L antenna array. The simulated and measured results show that the correlation coefficients between any two branches can be decreased. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Small antenna / Diversity / Four-branch / Two-element antenna array / Decoupling circuit / Phase shifter / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 373, AP2020-130, pp. 77-80, Feb. 2021. | |
| Paper # | AP2020-130 | |
| Date of Issue | 2021-02-11 (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 | AP2020-130 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2021-02-18 - 2021-02-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Industrial Session, Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2021-02-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simple small diversity antenna switching four states by using two elements |
| Sub Title (in English) | |
| Keyword(1) | Small antenna |
| Keyword(2) | Diversity |
| Keyword(3) | Four-branch |
| Keyword(4) | Two-element antenna array |
| Keyword(5) | Decoupling circuit |
| Keyword(6) | Phase shifter |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kengo Nishimoto |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 2nd Author's Name | Ryosuke Kobayashi |
| 2nd Author's Affiliation | Mitsubishi Electric Engineering Corporation (Mitsubishi Electric Engineering) |
| 3rd Author's Name | Toyohisa Tanaka |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 4th Author's Name | Yasuhiro Nishioka |
| 4th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
| 5th Author's Name | Yoshio Inasawa |
| 5th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric) |
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| Speaker | Author-1 |
| Date Time | 2021-02-19 15:15:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2020-130 |
| Volume (vol) | vol.120 |
| Number (no) | no.373 |
| Page | pp.77-80 |
| #Pages | 4 |
| Date of Issue | 2021-02-11 (AP) |
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