Paper Abstract and Keywords |
Presentation |
2018-03-09 09:30
Double-layer Slit Structure to Suppress E-plane Sidelobes in a Corporate-feed Waveguide Slot Array Antenna of 2x2-element Radiating Units Haruka Arakawa, Hisanori Irie, Takashi Tomura, Jiro Hirokawa (Tokyo Inst. of Tech.) AP2017-195 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have suppressed E-plane sidelobe level in the tilted direction between 30-40 deg. in Taylor radiation pattern by introducing a slit layer in a corporate-feed waveguide slot array antenna consisting of 2×2-element radiating units. Instead of one layer of foaming dielectric, two layers of PTFE and air realize desired equivalent relative permittivity and the degradation of the reflection is compensated by an additional slit layer. The full structure of 16×16 elements with the feeding circuit is designed and analyzed in the 70GHz band. 8.8 % bandwidth of VSWR less than 1.5 and 76.6 % antenna efficiency at the design frequency are achieved. The sidelobe level of the tilted direction between 30-40 deg. is suppressed to -30.0 dB from -24.9 dB at the design frequency. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
waveguide slot array / corporate-feed / Taylor distribution / slit / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 490, AP2017-195, pp. 19-22, March 2018. |
Paper # |
AP2017-195 |
Date of Issue |
2018-03-01 (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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AP2017-195 |
Conference Information |
Committee |
AP |
Conference Date |
2018-03-08 - 2018-03-09 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hotel Ichii (Kusatsu, Gunma) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Antennas and Propagation |
Paper Information |
Registration To |
AP |
Conference Code |
2018-03-AP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Double-layer Slit Structure to Suppress E-plane Sidelobes in a Corporate-feed Waveguide Slot Array Antenna of 2x2-element Radiating Units |
Sub Title (in English) |
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Keyword(1) |
waveguide slot array |
Keyword(2) |
corporate-feed |
Keyword(3) |
Taylor distribution |
Keyword(4) |
slit |
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1st Author's Name |
Haruka Arakawa |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
2nd Author's Name |
Hisanori Irie |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
3rd Author's Name |
Takashi Tomura |
3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
4th Author's Name |
Jiro Hirokawa |
4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2018-03-09 09:30:00 |
Presentation Time |
25 minutes |
Registration for |
AP |
Paper # |
AP2017-195 |
Volume (vol) |
vol.117 |
Number (no) |
no.490 |
Page |
pp.19-22 |
#Pages |
4 |
Date of Issue |
2018-03-01 (AP) |