Paper Abstract and Keywords |
Presentation |
2018-11-20 10:25
Design of Undesired-resonance Exclusion of a Degeneration-separated Hexagonal-cross-section Waveguide Circularly Polarized Aperture Antenna Shuki Wai, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2018-102 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The corporate-feed waveguide slot array antenna is a high-efficiency and wide-band antenna in the millimeter-wave band. A circular-polarization radiating part for this antenna was designed by HFSS previously. The authors proposed a fast analysis method for the radiating part by the method for moments, and a design with Genetic Algorithm. The design of the 2x2-element sub-array was improved to 14.6% bandwidth for reflection less than -14dB and axial ratio lower than 3 dB. However, the directivity gain of this radiating part locally was decreased around 61.18GHz in the designed band (57-66GHz). In this paper, the authors find the reason that the incident wave couples with TM111-mode resonance in a cavity with the radiating aperture and TM11-mode is excited on the radiating aperture at 61.18GHz. The authors propose the design method to shift the resonant frequency out of the band in order without reducing the directivity of this radiating part. The axial ratio is suppressed below 3.35dB in the band. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
circular-polarization / undesired-resonance / waveguide slot array antenna / millimeter wave band / 60GHz-band / cooperate-feed / array antenna / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 310, AP2018-102, pp. 5-8, Nov. 2018. |
Paper # |
AP2018-102 |
Date of Issue |
2018-11-13 (AP) |
ISSN |
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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AP2018-102 |
Conference Information |
Committee |
RCS AP |
Conference Date |
2018-11-20 - 2018-11-22 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okinawa Industry Support Center |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
Paper Information |
Registration To |
AP |
Conference Code |
2018-11-RCS-AP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of Undesired-resonance Exclusion of a Degeneration-separated Hexagonal-cross-section Waveguide Circularly Polarized Aperture Antenna |
Sub Title (in English) |
|
Keyword(1) |
circular-polarization |
Keyword(2) |
undesired-resonance |
Keyword(3) |
waveguide slot array antenna |
Keyword(4) |
millimeter wave band |
Keyword(5) |
60GHz-band |
Keyword(6) |
cooperate-feed |
Keyword(7) |
array antenna |
Keyword(8) |
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1st Author's Name |
Shuki Wai |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech.) |
2nd Author's Name |
Takashi Tomura |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech.) |
3rd Author's Name |
Jiro Hirokawa |
3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech.) |
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Speaker |
Author-1 |
Date Time |
2018-11-20 10:25:00 |
Presentation Time |
20 minutes |
Registration for |
AP |
Paper # |
AP2018-102 |
Volume (vol) |
vol.118 |
Number (no) |
no.310 |
Page |
pp.5-8 |
#Pages |
4 |
Date of Issue |
2018-11-13 (AP) |
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