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Paper Abstract and Keywords
Presentation 2024-11-13 10:20
Vertically polarized omnidirectional reflector antenna fed by a circular waveguide bent TM01 mode converter for the 150 GHz band
Jiro Hirokawa, Riki Yanagisawa, Takashi Tomura (Science Tokyo), Issei Watanabe (NICT) AP2024-137
Abstract (in Japanese) (See Japanese page) 
(in English) A vertically polarized horizontal-plane omnidirectional antenna with a circular waveguide bent TM01 mode converter and an axisymmetric single reflector, which can be fabricated in the terahertz wave band above 100 GHz, is designed and fabricated for the 150 GHz band. Two circular bends of the same shape are connected in opposite bending directions to feed power from the bottom of the antenna, so that the flange of the feeding waveguide does not disturb the omnidirectional radiation pattern. Determining a frequency range of 147.8 GHz to 170.0 GHz as the operational band, where the transmission coefficient ratio of the TE11 mode to the TM01 mode is less than 1/3 that in the designed mode converter, the realized gain is 5.5±3.3 d
Keyword (in Japanese) (See Japanese page) 
(in English) Circular Waveguide Bent Mode Convertor / Omnidirectional Antenna / Reflector Antenna / Terahertz Wave / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 252, AP2024-137, pp. 13-18, Nov. 2024.
Paper # AP2024-137 
Date of Issue 2024-11-06 (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 AP2024-137

Conference Information
Committee RCS AP  
Conference Date 2024-11-13 - 2024-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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 2024-11-RCS-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Vertically polarized omnidirectional reflector antenna fed by a circular waveguide bent TM01 mode converter for the 150 GHz band 
Sub Title (in English)  
Keyword(1) Circular Waveguide Bent Mode Convertor  
Keyword(2) Omnidirectional Antenna  
Keyword(3) Reflector Antenna  
Keyword(4) Terahertz Wave  
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1st Author's Name Jiro Hirokawa  
1st Author's Affiliation Institute of Science Tokyo (Science Tokyo)
2nd Author's Name Riki Yanagisawa  
2nd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
3rd Author's Name Takashi Tomura  
3rd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
4th Author's Name Issei Watanabe  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2024-11-13 10:20:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2024-137 
Volume (vol) vol.124 
Number (no) no.252 
Page pp.13-18 
#Pages 6 
Date of Issue 2024-11-06 (AP) 

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