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Paper Abstract and Keywords
Presentation 2019-11-21 11:20
Equivalent circuit parameters reducing beam squint of left-handed leaky wave antenna
Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2019-122
Abstract (in Japanese) (See Japanese page) 
(in English) A rod-like leaky wave antenna composed of CRLH transmission lines has been proposed as a base station antenna for small cells. Since this antenna uses a series feed configuration, there is a problem that the beam tilt angle changes as the frequency changes. In this study, the unit cell of a leaky wave antenna is represented by a Lossless T-type equivalent circuit, and circuit parameters that suppress the fluctuation of the beam tilt angle with respect to the frequency fluctuation are examined by a random search method. As a result, it was found that decreasing the value of the right-handed system parameter and increasing the value of the left-handed system parameter was effective in suppressing phase fluctuation. When the actual transmission line was examined, it was found that there was a limit to the minimum transmission phase difference in the frequency bandwidth.
Keyword (in Japanese) (See Japanese page) 
(in English) Metamaterial / CRLH transmission lines / Beam squint / Leaky Wave Antenna / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 295, AP2019-122, pp. 91-94, Nov. 2019.
Paper # AP2019-122 
Date of Issue 2019-11-13 (AP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 AP2019-122

Conference Information
Committee AP RCS  
Conference Date 2019-11-20 - 2019-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Saga Univ. 
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 2019-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Equivalent circuit parameters reducing beam squint of left-handed leaky wave antenna 
Sub Title (in English)  
Keyword(1) Metamaterial  
Keyword(2) CRLH transmission lines  
Keyword(3) Beam squint  
Keyword(4) Leaky Wave Antenna  
1st Author's Name Kazuki Terada  
1st Author's Affiliation Chiba Institute of Technology (CIT)
2nd Author's Name Keizo Cho  
2nd Author's Affiliation Chiba Institute of Technology (CIT)
3rd Author's Name Hiroaki Nakabayashi  
3rd Author's Affiliation Chiba Institute of Technology (CIT)
4th Author's Name Naobumi Michishita  
4th Author's Affiliation National Defense Academy (NDA)
5th Author's Name Ichiro Oshima  
5th Author's Affiliation Denki Kogyo Co., Ltd (DKK)
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Date Time 2019-11-21 11:20:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2019-122 
Volume (vol) IEICE-119 
Number (no) no.295 
Page pp.91-94 
#Pages IEICE-4 
Date of Issue IEICE-AP-2019-11-13 

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