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Paper Abstract and Keywords
Presentation 2007-05-18 14:15
Proposal of Radio Wave Shutter Using Electrically Invisible Dipoles and Basic Study on Its Transparent and Shield Performance
Kyoichi Iigusa (NICT/Tokyo Inst.of Techn.), Hiroshi Harada, Shuzo Kato (NICT), Jiro Hirokawa, Makoto Ando (TIT) AP2007-27
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a radio-wave shutter, which can switch electronically transparent state and shield state, using the mechanism of an electrically invisible dipole, and investigate its basic performance. Metal wires loaded with varactor diodes with the interval of quarter of a desired frequency wavelength are arranged parallel to one another. By controlling the capacitance values of the varactors by DC voltage, the reactance values at the reactor-loaded points are varied. When the impedance is controlled to 0 ohm, current can flow on the wire freely and the radio-wave parallel to the wires is shielded. When the reactance value corresponding to the electrically invisible dipole and a large impedance value are arranged in turns, the current direction is reversed so as to diminish the current integral. Consequently, the radio-wave of a desired frequency permeates the film.
Keyword (in Japanese) (See Japanese page) 
(in English) Varactor / Electrically Invisible / Dipole / Shield / Transparent / Reactance / FSS / Shutter  
Reference Info. IEICE Tech. Rep., vol. 107, no. 35, AP2007-27, pp. 81-86, May 2007.
Paper # AP2007-27 
Date of Issue 2007-05-10 (AP) 
ISSN Print edition: ISSN 0913-5685    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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Conference Information
Committee AP  
Conference Date 2007-05-17 - 2007-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi Univ. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2007-05-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of Radio Wave Shutter Using Electrically Invisible Dipoles and Basic Study on Its Transparent and Shield Performance 
Sub Title (in English)  
Keyword(1) Varactor  
Keyword(2) Electrically Invisible  
Keyword(3) Dipole  
Keyword(4) Shield  
Keyword(5) Transparent  
Keyword(6) Reactance  
Keyword(7) FSS  
Keyword(8) Shutter  
1st Author's Name Kyoichi Iigusa  
1st Author's Affiliation National Institute of Information and Communications Technology/Tokyo Institute of Technology (NICT/Tokyo Inst.of Techn.)
2nd Author's Name Hiroshi Harada  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Shuzo Kato  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Jiro Hirokawa  
4th Author's Affiliation Tokyo Institute of Technology (TIT)
5th Author's Name Makoto Ando  
5th Author's Affiliation Tokyo Institute of Technology (TIT)
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Speaker Author-1 
Date Time 2007-05-18 14:15:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-27 
Volume (vol) vol.107 
Number (no) no.35 
Page pp.81-86 
#Pages 6 
Date of Issue 2007-05-10 (AP) 

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