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| Presentation | 2011-10-21 13:50 A Dual-Polarization Single Layered Printable Antenna for 1.5/2.4 GHz Kenji Kakemizu, Mayumi Matsunaga (Ehime Univ.), Toshiaki Matsunaga (Fukuoka Inst. Tech.)  MW2011-108 Link to ES Tech. Rep. Archives: MW2011-108 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A multi-polarization antenna that can be made by single fed and single layered structure is presented in this paper. The numbers of antennas inside mobile communication devices are getting more as the functions of them are increasing. Interference of two or more antennas being located closely inside the devices has become a serious problem. Multi polarization antennas could be useful for solving the problem. An effective planer antenna that radiates circularly and linearly polarization waves simultaneously has been presented by the authors. It has been able to be used, however, only for the case that the frequency of linearly polarized waves is lower than that of circularly polarized waves. Moreover, the gain and efficiency of linearly polarized waves have been lower than those of circularly polarized waves. In this paper, a new structure of the antenna for radiating linearly polarized waves at higher frequency in comparison with that of circularly polarization waves. The return loss and polarization characteristics of the prototype antenna that can radiate circularly polarized waves at 1.5GHz and linearly polarized wave at 2.45GHz have been shown. The antenna achieved the target performance that the axial ratio at 1.5GHz is 3 dB and cross polarization level relative to co-polarization is -40 dB or less. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Multi-polarization antenna / multi-frequency antenna / planer antenna / circularly polarized waves / GPS / mobile phones / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 250, MW2011-108, pp. 125-129, Oct. 2011. | |
| Paper # | MW2011-108 | |
| Date of Issue | 2011-10-13 (MW) | |
| 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 | MW2011-108 Link to ES Tech. Rep. Archives: MW2011-108 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2011-10-20 - 2011-10-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2011-10-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Dual-Polarization Single Layered Printable Antenna for 1.5/2.4 GHz |
| Sub Title (in English) | |
| Keyword(1) | Multi-polarization antenna |
| Keyword(2) | multi-frequency antenna |
| Keyword(3) | planer antenna |
| Keyword(4) | circularly polarized waves |
| Keyword(5) | GPS |
| Keyword(6) | mobile phones |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kenji Kakemizu |
| 1st Author's Affiliation | Ehime University (Ehime Univ.) |
| 2nd Author's Name | Mayumi Matsunaga |
| 2nd Author's Affiliation | Ehime University (Ehime Univ.) |
| 3rd Author's Name | Toshiaki Matsunaga |
| 3rd Author's Affiliation | Fukuoka Institute of Technology (Fukuoka Inst. Tech.) |
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| Speaker | Author-1 |
| Date Time | 2011-10-21 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | MW2011-108 |
| Volume (vol) | vol.111 |
| Number (no) | no.250 |
| Page | pp.125-129 |
| #Pages | 5 |
| Date of Issue | 2011-10-13 (MW) |
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