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| Presentation | 2012-12-13 16:15 Parallel-Ring-Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right/Left-Handed Transmission Lines Yuma Simitomo, Tadashi Kawai, Akira Enokihara, Isao Ohta (Univ. of Hyogo), Kei Satoh, Yasunori Suzuki, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO)  MW2012-132 Link to ES Tech. Rep. Archives: MW2012-132 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper treats a parallel-ring-type rat-race circuit for loose coupling utilizing composite right-/left-handed transmission lines(CRLH-TLs). For conventional rat-race circuits maximum of unbalanced power ratio from two output ports is limited by characteristic impedance of one pair of ring-lines that can be manufactured. We have already proposed a parallel-ring-type rat-race circuit for loose coupling utilizing only RH-TLs and realized the rat-race circuit with a large unbalance power ratio. In this research, the proposed parallel-ring-type rat-race circuit utilizing CRLH-TLs can achieve broadband characteristics and compact circuit size with a coupling factor of -20dB. Furthermore, the validity of this design procedure has been demonstrated by em-simulations and experiments at 4GHz band. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Microwave passive components / CRLH-TL / rat-race circuit / loose coupling / broadband / compact / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 355, MW2012-132, pp. 31-36, Dec. 2012. | |
| Paper # | MW2012-132 | |
| Date of Issue | 2012-12-06 (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 | MW2012-132 Link to ES Tech. Rep. Archives: MW2012-132 |
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| Conference Information | |
| Committee | MW |
| Conference Date | 2012-12-13 - 2012-12-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Yamanashi |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave Technologies |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2012-12-MW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Parallel-Ring-Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right/Left-Handed Transmission Lines |
| Sub Title (in English) | |
| Keyword(1) | Microwave passive components |
| Keyword(2) | CRLH-TL |
| Keyword(3) | rat-race circuit |
| Keyword(4) | loose coupling |
| Keyword(5) | broadband |
| Keyword(6) | compact |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuma Simitomo |
| 1st Author's Affiliation | University of Hyogo (Univ. of Hyogo) |
| 2nd Author's Name | Tadashi Kawai |
| 2nd Author's Affiliation | University of Hyogo (Univ. of Hyogo) |
| 3rd Author's Name | Akira Enokihara |
| 3rd Author's Affiliation | University of Hyogo (Univ. of Hyogo) |
| 4th Author's Name | Isao Ohta |
| 4th Author's Affiliation | University of Hyogo (Univ. of Hyogo) |
| 5th Author's Name | Kei Satoh |
| 5th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 6th Author's Name | Yasunori Suzuki |
| 6th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 7th Author's Name | Hiroshi Okazaki |
| 7th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 8th Author's Name | Shoichi Narahashi |
| 8th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2012-12-13 16:15:00 |
| Presentation Time | 30 minutes |
| Registration for | MW |
| Paper # | MW2012-132 |
| Volume (vol) | vol.112 |
| Number (no) | no.355 |
| Page | pp.31-36 |
| #Pages | 6 |
| Date of Issue | 2012-12-06 (MW) |
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