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Paper Abstract and Keywords
Presentation 2008-01-18 13:00
Comparison of birefringence between microwave measurement and theoretical calculation for liquid crystal loaded CPW-FE phase shifter.
Nguyen Thanh Bach, Ryotaro Ozaki, Hiroshi Moritake, Toshihisa Kamei, Yozo Utsumi (NDA) ED2007-229 MW2007-160 Link to ES Tech. Rep. Archives: ED2007-229 MW2007-160
Abstract (in Japanese) (See Japanese page) 
(in English) The effective permittivity of a coplanar waveguide (CPW) and dielectric birefringence (Δε) in a liquid crystal microwave phase shifter are calculated with taking into account of the molecular orientation in a liquid crystal layer. The effective permittivity and dielectric birefringence are determined by liquid crystal molecular orientation and CPW high-frequency electric field. Using continuum theory of liquid crystal, we obtain the liquid crystal molecular orientation controlled by a bias voltage. The calculations of the bias voltage dependence of the effective permittivity qualitatively agree with measurements. Furthermore, we can confirm the mechanism of the change in permittivity by the calculations.
Keyword (in Japanese) (See Japanese page) 
(in English) nematic liquid crystal / CPW-FE / phase shift / molecular orientation / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 421, MW2007-160, pp. 135-140, Jan. 2008.
Paper # MW2007-160 
Date of Issue 2008-01-09 (ED, MW) 
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 ED2007-229 MW2007-160 Link to ES Tech. Rep. Archives: ED2007-229 MW2007-160

Conference Information
Committee ED MW  
Conference Date 2008-01-16 - 2008-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Compound Semiconductor IC, High-speed and high-frequency devices 
Paper Information
Registration To MW 
Conference Code 2008-01-ED-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Comparison of birefringence between microwave measurement and theoretical calculation for liquid crystal loaded CPW-FE phase shifter. 
Sub Title (in English)  
Keyword(1) nematic liquid crystal  
Keyword(2) CPW-FE  
Keyword(3) phase shift  
Keyword(4) molecular orientation  
1st Author's Name Nguyen Thanh Bach  
1st Author's Affiliation National Defense Academy (NDA)
2nd Author's Name Ryotaro Ozaki  
2nd Author's Affiliation National Defense Academy (NDA)
3rd Author's Name Hiroshi Moritake  
3rd Author's Affiliation National Defense Academy (NDA)
4th Author's Name Toshihisa Kamei  
4th Author's Affiliation National Defense Academy (NDA)
5th Author's Name Yozo Utsumi  
5th Author's Affiliation National Defense Academy (NDA)
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Date Time 2008-01-18 13:00:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-ED2007-229,IEICE-MW2007-160 
Volume (vol) IEICE-107 
Number (no) no.420(ED), no.421(MW) 
Page pp.135-140 
#Pages IEICE-6 
Date of Issue IEICE-ED-2008-01-09,IEICE-MW-2008-01-09 

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