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Paper Abstract and Keywords
Presentation 2022-07-14 14:25
Comparative Study of Noise Spectrum of Different Phase Change Schemes in BPSK Modulators
Kazuaki Maruyama, Atsuhiro Nishikata (Tokyo Tech) EMCJ2022-30
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed and studied full-duplex retroreflective communications using Van Atta array retroreflectors.
In the previous study, a BPSK modulator with transmission line switching was used, which caused discontinuities in the signal and adversely affected demodulation.
Therefore, we introduced a continuous shifter with a varactor and studied the effect of reducing noise and narrowing the spectrum during modulation.
Time-domain numerical simulations using a one-dimensional difference method are performed for a BPSK modulator with discontinuous switching or continuous variation, and the effect of introducing a continuous phase shifter is examined by comparing the frequency spectrum of the modulated waves of the two modulators.
Keyword (in Japanese) (See Japanese page) 
(in English) Retroreflector / Van Atta array / full duplex transmission / BPSK / continuous modulation / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 111, EMCJ2022-30, pp. 11-16, July 2022.
Paper # EMCJ2022-30 
Date of Issue 2022-07-07 (EMCJ) 
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 EMCJ2022-30

Conference Information
Committee EMCJ  
Conference Date 2022-07-14 - 2022-07-14 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Young Scientist Meeting 
Paper Information
Registration To EMCJ 
Conference Code 2022-07-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Comparative Study of Noise Spectrum of Different Phase Change Schemes in BPSK Modulators 
Sub Title (in English)  
Keyword(1) Retroreflector  
Keyword(2) Van Atta array  
Keyword(3) full duplex transmission  
Keyword(4) BPSK  
Keyword(5) continuous modulation  
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Keyword(7)  
Keyword(8)  
1st Author's Name Kazuaki Maruyama  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Atsuhiro Nishikata  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2022-07-14 14:25:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2022-30 
Volume (vol) vol.122 
Number (no) no.111 
Page pp.11-16 
#Pages 6 
Date of Issue 2022-07-07 (EMCJ) 

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