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| Presentation | 2015-10-22 10:55 A Coaxial OMT with TE21-Mode Coupler Hidenori Yukawa, Shin-ichi Yamamoto, Tetsuya Katase, Shuji Nuimura, Naofumi Yoneda (Mitsubishi Ele. Corp.)  EMCJ2015-63 MW2015-102 EST2015-73 Link to ES Tech. Rep. Archives: MW2015-102 EST2015-73 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Waveguide orthomode junction (OMJ) is one of key components of antenna feed systems for satellite communication. It works in two frequency bands to separate or combine vertical- or horizontal- linear polarizations or left- or right- circular polarizations. A coaxial structure is used for reduction of filters and miniaturization. However tracking systems comprised of coaxial structure have not ever almost reported. We propose a coaxial ortho mode transducer with TE21-mode coupler to realize a tracking function. The structure consists of a turn style junction type OMT and a TE21-mode coupler with tapered cylindrical outer conductor. The stepped inner conductor of coaxial structure contributes to the matching of both the OMT and the TE21-mode coupler so it makes possible to arrange them closely. We fabricated a proposed ortho mode transducer with transmission bandwidth of 10%. The measured results demonstrated a return loss of 20dB, TE21-mode coupling coefficient of 14dB. In this report, we show the design method and the measurement results. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | antenna feed systems / waveguide / coaxial / omt / coupler / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 260, MW2015-102, pp. 23-28, Oct. 2015. | |
| Paper # | MW2015-102 | |
| Date of Issue | 2015-10-15 (EMCJ, MW, EST) | |
| 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 | EMCJ2015-63 MW2015-102 EST2015-73 Link to ES Tech. Rep. Archives: MW2015-102 EST2015-73 |
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| Conference Information | |
| Committee | EMCJ IEE-EMC MW EST |
| Conference Date | 2015-10-22 - 2015-10-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sakura Hall, Katahira Campus, Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave, Electromagnetic simulation, EMC, etc. |
| Paper Information | |
| Registration To | MW |
| Conference Code | 2015-10-EMCJ-EMC-MW-EST |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Coaxial OMT with TE21-Mode Coupler |
| Sub Title (in English) | |
| Keyword(1) | antenna feed systems |
| Keyword(2) | waveguide |
| Keyword(3) | coaxial |
| Keyword(4) | omt |
| Keyword(5) | coupler |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hidenori Yukawa |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Ele. Corp.) |
| 2nd Author's Name | Shin-ichi Yamamoto |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Ele. Corp.) |
| 3rd Author's Name | Tetsuya Katase |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Ele. Corp.) |
| 4th Author's Name | Shuji Nuimura |
| 4th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Ele. Corp.) |
| 5th Author's Name | Naofumi Yoneda |
| 5th Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Ele. Corp.) |
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| Speaker | Author-1 |
| Date Time | 2015-10-22 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | MW |
| Paper # | EMCJ2015-63, MW2015-102, EST2015-73 |
| Volume (vol) | vol.115 |
| Number (no) | no.259(EMCJ), no.260(MW), no.261(EST) |
| Page | pp.23-28 |
| #Pages | 6 |
| Date of Issue | 2015-10-15 (EMCJ, MW, EST) |
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