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Paper Abstract and Keywords
Presentation 2009-01-23 13:25
Design for continuous beam-scanning of leaky-wave slot-array by optimization of wavelength dispersion property of left-handed waveguide
Kazushi Kawaguchi, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama (NIT) AP2008-182
Abstract (in Japanese) (See Japanese page) 
(in English) Left-handed transmission line supports waves with anti-parallel phase and group velocities. It has peculiar characteristic of backward leaky-wave radiation. Generally, we have phase delay in transmitting along the ordinary transmission lines. The traveling phase delay is canceled by the phase perturbation due to the periodic structure in transmission line and more phase advance achieves feature of left-handed transmission line. The purpose of this research is to improve design flexibility of array
antenna operating on traveling-wave excitation. Beam direction can be controled by phase change caused by transmitting through the periodic structure in slotted waveguide. We have developed a slot array antenna with a left-handed waveguide. The antenna was composed of slots on a left-handed waveguide in which pairs of capacitive series stub on H-plane and inductive iris are periodically arranged to give the phase advance in the waveguide. However electromagnetic band gap was generated and there was a limit in the controlling dispersion property of wavelength. The design flexibility of dispersion property of wavelength is improved and bandgap frequency band is eliminated by close arrangement of periodic structure continuous beam-scanning confirmed by simulation in this paper.
Keyword (in Japanese) (See Japanese page) 
(in English) Metamaterial / Waveguide / Left-handed transmission line / Phase perturbation / Slot antenna / Dispersion property / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 386, AP2008-182, pp. 185-190, Jan. 2009.
Paper # AP2008-182 
Date of Issue 2009-01-14 (AP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee AP  
Conference Date 2009-01-21 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Etc. 
Paper Information
Registration To AP 
Conference Code 2009-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design for continuous beam-scanning of leaky-wave slot-array by optimization of wavelength dispersion property of left-handed waveguide 
Sub Title (in English)  
Keyword(1) Metamaterial  
Keyword(2) Waveguide  
Keyword(3) Left-handed transmission line  
Keyword(4) Phase perturbation  
Keyword(5) Slot antenna  
Keyword(6) Dispersion property  
Keyword(7)  
Keyword(8)  
1st Author's Name Kazushi Kawaguchi  
1st Author's Affiliation Nagoya Institute of Technology (NIT)
2nd Author's Name Kunio Sakakibara  
2nd Author's Affiliation Nagoya Institute of Technology (NIT)
3rd Author's Name Nobuyoshi Kikuma  
3rd Author's Affiliation Nagoya Institute of Technology (NIT)
4th Author's Name Hiroshi Hirayama  
4th Author's Affiliation Nagoya Institute of Technology (NIT)
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Speaker Author-1 
Date Time 2009-01-23 13:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-182 
Volume (vol) vol.108 
Number (no) no.386 
Page pp.185-190 
#Pages 6 
Date of Issue 2009-01-14 (AP) 

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