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| Presentation | 2019-05-16 14:05 A consideration on frequency control of varactor-loaded dual-band single-layer multi-ring microstrip antennas with reduced bias circuits Toru Ikeda, Sakuyoshi Saito, Yuichi Kimura (Saitama Univ.)  AP2019-3 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents reduced bias circuit designs of frequency-tunable dual-band multi-ring microstrip antennas with varactor diodes. Two varactor diodes are mounted on each square ring patch antenna fed by an L-probe to realize a frequency-tunable dual-band microstrip antenna. Resonant frequency of the ring patches can be controlled by the DC bias voltage applied to the varactor diodes. In order to develop a frequency-tunable multiband microstrip antenna with multiple ring patches, reduction the number of the bias circuits is important. In this paper, the bias circuits for negative bias terminals of the frequency-tunable dual-band multi-ring microstrip antenna are replaced with vias shorting the ring patch to the ground plane at the zero-voltage plane. Furthermore, upper half areas of the ring patches can be removed with the vias to miniaturize the dual-band multi-ring microstrip antenna. It is demonstrated that two resonant frequencies of the proposed antennas with the reduced bias circuits and the miniaturized patches are controlled by the bias voltages for the two patches almost independently. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | planar antenna / microstrip antenna / multiband antenna / frequency-tunable antenna / varactor diode / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 28, AP2019-3, pp. 13-18, May 2019. | |
| Paper # | AP2019-3 | |
| Date of Issue | 2019-05-09 (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 | AP2019-3 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2019-05-16 - 2019-05-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kanpo-no-yado Arima (Arima Onsen, Hyogo) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2019-05-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A consideration on frequency control of varactor-loaded dual-band single-layer multi-ring microstrip antennas with reduced bias circuits |
| Sub Title (in English) | |
| Keyword(1) | planar antenna |
| Keyword(2) | microstrip antenna |
| Keyword(3) | multiband antenna |
| Keyword(4) | frequency-tunable antenna |
| Keyword(5) | varactor diode |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Toru Ikeda |
| 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-3 |
| Date Time | 2019-05-16 14:05:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2019-3 |
| Volume (vol) | vol.119 |
| Number (no) | no.28 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2019-05-09 (AP) |
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