Paper Abstract and Keywords |
Presentation |
2008-07-25 10:50
High Directivity Coupler Suppressing Undesired Coupling with Wilkinson Divider Kazuhisa Yamauchi, Masatoshi Nakayama, Akira Inoue (Mitsubishi Electric) MW2008-76 OPE2008-59 Link to ES Tech. Rep. Archives: MW2008-76 OPE2008-59 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A high directivity microstrip coupler suppressing undesired coupling with a cancellation circuit of a Wilkinson divider is presented. The presented coupler utilizes a cancellation circuit between a coupling port and an isolation port of the conventional microstrip coupler to enhance the isolation at the desired frequency. The cancellation circuit consists of the Wilkinson divider, and an attenuator. The isolation enhancement frequency can be controlled by the attenuator. The cancellation circuit can be applied to the couplers that have already been fabricated. The measured directivity of the presented coupler is improved from 4.8dB to 43dB at 2.6GHz, and the relative band width of 27.4% with the directivity of over 20dB can be achieved, compared with the conventional coupler. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
microwave / directional coupler / directivity / microstrip / Wilkinson divider / isolation / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 154, MW2008-76, pp. 163-168, July 2008. |
Paper # |
MW2008-76 |
Date of Issue |
2008-07-17 (MW, OPE) |
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 |
MW2008-76 OPE2008-59 Link to ES Tech. Rep. Archives: MW2008-76 OPE2008-59 |
Conference Information |
Committee |
OPE EMT MW |
Conference Date |
2008-07-24 - 2008-07-25 |
Place (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
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Paper Information |
Registration To |
MW |
Conference Code |
2008-07-OPE-EMT-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
High Directivity Coupler Suppressing Undesired Coupling with Wilkinson Divider |
Sub Title (in English) |
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Keyword(1) |
microwave |
Keyword(2) |
directional coupler |
Keyword(3) |
directivity |
Keyword(4) |
microstrip |
Keyword(5) |
Wilkinson divider |
Keyword(6) |
isolation |
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Keyword(8) |
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1st Author's Name |
Kazuhisa Yamauchi |
1st Author's Affiliation |
Mitsubishi Electric Corp. (Mitsubishi Electric) |
2nd Author's Name |
Masatoshi Nakayama |
2nd Author's Affiliation |
Mitsubishi Electric Corp. (Mitsubishi Electric) |
3rd Author's Name |
Akira Inoue |
3rd Author's Affiliation |
Mitsubishi Electric Corp. (Mitsubishi Electric) |
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Speaker |
Author-1 |
Date Time |
2008-07-25 10:50:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2008-76, OPE2008-59 |
Volume (vol) |
vol.108 |
Number (no) |
no.154(MW), no.155(OPE) |
Page |
pp.163-168 |
#Pages |
6 |
Date of Issue |
2008-07-17 (MW, OPE) |
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