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| Presentation | 2008-02-07 15:15 Study on Resonant Frequency of Folded Type Rectangular Loop Antenna in UHF Band Naoto Kogo, Susumu Nakazawa, Toru Iwasaki, Shoji Tanaka, Kazuyoshi Shogen (NHK), Koichi Ito (Chiba Univ.)  AP2007-171 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The service for mobile receivers of ISDB-T is called “One-seg” (one segment) and the mobile terminals for One-seg has spread widely. A rod antenna is widely used for mobile terminals currently on market such as mobile phones. However, an external antenna deteriorates the usability of a mobile terminal and is therefore usually not desired. In this paper, we propose a Folded type Rectangular Loop Antenna (FRLA) for one-seg. To resonate in the UHF band, we consider a method where an antenna element consists of copper wire that is folded at each corner of a rectangular loop with a few folds. This method results in a small built-in loop antenna with long electric length that resonates in the lower UHF band. The measured and simulated Voltage Standing Wave Ratio (VSWR) , radiation patterns and resonant frequency of the FRLA are shown. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | UHF Band / Folded Type / Loop Antenna / Miniaturization / Resonant Frequency / One-seg / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 479, AP2007-171, pp. 45-48, Feb. 2008. | |
| Paper # | AP2007-171 | |
| Date of Issue | 2008-01-31 (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 | AP2007-171 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2008-02-07 - 2008-02-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NHK |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2008-02-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Resonant Frequency of Folded Type Rectangular Loop Antenna in UHF Band |
| Sub Title (in English) | |
| Keyword(1) | UHF Band |
| Keyword(2) | Folded Type |
| Keyword(3) | Loop Antenna |
| Keyword(4) | Miniaturization |
| Keyword(5) | Resonant Frequency |
| Keyword(6) | One-seg |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoto Kogo |
| 1st Author's Affiliation | NHK (NHK) |
| 2nd Author's Name | Susumu Nakazawa |
| 2nd Author's Affiliation | NHK (NHK) |
| 3rd Author's Name | Toru Iwasaki |
| 3rd Author's Affiliation | NHK (NHK) |
| 4th Author's Name | Shoji Tanaka |
| 4th Author's Affiliation | NHK (NHK) |
| 5th Author's Name | Kazuyoshi Shogen |
| 5th Author's Affiliation | NHK (NHK) |
| 6th Author's Name | Koichi Ito |
| 6th Author's Affiliation | Chiba Univ. (Chiba Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-02-07 15:15:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2007-171 |
| Volume (vol) | vol.107 |
| Number (no) | no.479 |
| Page | pp.45-48 |
| #Pages | 4 |
| Date of Issue | 2008-01-31 (AP) |
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