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| Presentation | 2012-08-27 10:35 Input Impedance Measurement of a Balanced Dipole Antenna Corrected by Considering Characteristic of 180-degree 3dB Hybrid Coupler Junki Hayakawa, Nozomu Ishii (Niigata Univ.)  AP2012-69 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | It is known that the input impedance of balanced antennas can be measured with the 180-degree 3dB hybrid coupler. However, to accurately measure the input impedance of balanced antennas, it is necessary to consider the $S$-parameter of 180-degree 3dB hybrid coupler because the $S$-parameter of 180-degree 3dB hybrid coupler is not ideal. In this paper, we examine and compare the three methods to correct the input impedance. The two methods require full two-port measurement between the sum and difference ports of 180-degree 3dB hybrid coupler, the other method requires only one-port measurement at the difference port. Furthermore, we confirm the effectiveness of the proposed methods to correct the input impedance by comparing with the input impedance calculated by the methods of moment. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | input impedance / balanced antenna / 180-degree 3dB hybrid coupler / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 187, AP2012-69, pp. 7-12, Aug. 2012. | |
| Paper # | AP2012-69 | |
| Date of Issue | 2012-08-20 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 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 | AP2012-69 |
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| Conference Information | |
| Committee | AP WPT |
| Conference Date | 2012-08-27 - 2012-08-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Niigata Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antenna Measurement, Wireless Power Transmission, Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2012-08-AP-WPT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Input Impedance Measurement of a Balanced Dipole Antenna Corrected by Considering Characteristic of 180-degree 3dB Hybrid Coupler |
| Sub Title (in English) | |
| Keyword(1) | input impedance |
| Keyword(2) | balanced antenna |
| Keyword(3) | 180-degree 3dB hybrid coupler |
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| Keyword(8) | |
| 1st Author's Name | Junki Hayakawa |
| 1st Author's Affiliation | Niigata University (Niigata Univ.) |
| 2nd Author's Name | Nozomu Ishii |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-08-27 10:35:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2012-69 |
| Volume (vol) | vol.112 |
| Number (no) | no.187 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2012-08-20 (AP) |
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