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Paper Abstract and Keywords
Presentation 2024-07-24 10:40
Waveguide 3x2-slot subarray antenna for millimeter-wave car radar
Ryosuke Sakurai, Jiro Hirokawa, Takashi Tomura (Tokyo Tech) AP2024-23
Abstract (in Japanese) (See Japanese page) 
(in English) We designed a 2x2-slot subarray antenna which consists of hollow waveguide for millimeter-wave car radar in the 76 GHz band. We achieved a target value for the beamwidth in the E-plane (horizontal plane), however, we didn’t achieve the target value in the H-plane (vertical plane) and that for the gain. In this manuscript, we add slots in the H-plane and design a 3x2-slot subarray antenna in the 76 GHz band. Its cavity is designed to reduce phase difference among the slots. We change the slot length, the slot width and the slot spacing to improve the gain. It is designed for a wide bandwidth by double resonance with two reflection-suppressing walls in the feeding part. The antenna has -10dB reflection over 75.4GHz ~ 81.0GHz, the gain of 15.65dBi and the sidelobe level of -17.5dB at 78.5GHz.
Keyword (in Japanese) (See Japanese page) 
(in English) hollow waveguide / slot array antenna / millimeter-wave antenna / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 126, AP2024-23, pp. 11-14, July 2024.
Paper # AP2024-23 
Date of Issue 2024-07-17 (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)
Download PDF AP2024-23

Conference Information
Committee AP SANE SAT  
Conference Date 2024-07-24 - 2024-07-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Frontier Research in Applied Sciences Building, Hokkaido University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2024-07-AP-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Waveguide 3x2-slot subarray antenna for millimeter-wave car radar 
Sub Title (in English)  
Keyword(1) hollow waveguide  
Keyword(2) slot array antenna  
Keyword(3) millimeter-wave antenna  
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1st Author's Name Ryosuke Sakurai  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Jiro Hirokawa  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Takashi Tomura  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2024-07-24 10:40:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2024-23 
Volume (vol) vol.124 
Number (no) no.126 
Page pp.11-14 
#Pages 4 
Date of Issue 2024-07-17 (AP) 

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