Paper Abstract and Keywords |
Presentation |
2011-01-21 12:45
Design of Sidelobe Suppression in a Double-layer Waveguide Aperture Array Antenna with a Corporate-feed Circuit Yuichi Watarai, Zhang Miao, Jiro Hirokawa, Makoto Ando (Tokyo Inst. of Tech.) AP2010-154 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A feeding circuit has been designed which can control an aperture distribution for sidelode suppression in the 60GHz double-layer waveguide array antenna. In design of the Taylor distribution with -25 dB sidelobe level, the first silelobe level becomes -24 dB. However, the sidelobe level degrades up to -22.6 dB in the tilted direction between 30 -40 deg. because of the pair excitation. A feeding circuit for an 8x8-element sub-array has also been designed by combining T-junction circuits. We demonstrate the frequency characteristics of the dividing ratios and the reflections of 3-type models of the T-junctions required for the desired aperture distribution. The unbalance is 0.34 dB between the output ports at a maximum and the reflections are suppressed below -24 dB over 59-66GHz. Finally, the array factor by the feeding circuit gives close agreement with the desired value. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
waveguide aperture array antenna / corporate-feed / Taylor distribution / waveguide T-junction circuit / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 371, AP2010-154, pp. 125-130, Jan. 2011. |
Paper # |
AP2010-154 |
Date of Issue |
2011-01-13 (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) |
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AP2010-154 |
Conference Information |
Committee |
AP |
Conference Date |
2011-01-20 - 2011-01-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Saga Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
AP |
Paper Information |
Registration To |
AP |
Conference Code |
2011-01-AP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of Sidelobe Suppression in a Double-layer Waveguide Aperture Array Antenna with a Corporate-feed Circuit |
Sub Title (in English) |
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Keyword(1) |
waveguide aperture array antenna |
Keyword(2) |
corporate-feed |
Keyword(3) |
Taylor distribution |
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waveguide T-junction circuit |
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1st Author's Name |
Yuichi Watarai |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
2nd Author's Name |
Zhang Miao |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
3rd Author's Name |
Jiro Hirokawa |
3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
4th Author's Name |
Makoto Ando |
4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2011-01-21 12:45:00 |
Presentation Time |
25 minutes |
Registration for |
AP |
Paper # |
AP2010-154 |
Volume (vol) |
vol.110 |
Number (no) |
no.371 |
Page |
pp.125-130 |
#Pages |
6 |
Date of Issue |
2011-01-13 (AP) |