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Paper Abstract and Keywords
Presentation 2023-07-12 18:20
[Invited Lecture] A calculation of multiple diffraction loss using a sphere interception
Shinichi Ichitsubo AP2023-40
Abstract (in Japanese) (See Japanese page) 
(in English) The theme of the 4th radio wave propagation modeling competition is the achieving simplification of the calculation amount of multiple-screen-diffraction for urban propagation. The method using Kirchhoff approximation is proposed. In this method, a wave source plane and an observation plane are displaced to the same sphere as a spherical wave, and a screen plate is displaced to the curved surface which touches an observation plane. Since the electrical field of the transverse direction of an observation plane becomes the same by this replacement, the calculation amount of an electrical field is reduced to 1/100, and a practical machine time is attained. Moreover, the method using a fresnel approximation and the method of a Fourier transformation of two function are also reported.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio Wave Propagation / Propagation Loss / Multiple-Screen-Diffraction Model / Kirchhoff approximation / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 103, AP2023-40, pp. 49-53, July 2023.
Paper # AP2023-40 
Date of Issue 2023-07-05 (AP) 
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 AP2023-40

Conference Information
Committee AP SANE SAT  
Conference Date 2023-07-12 - 2023-07-14 
Place (in Japanese) (See Japanese page) 
Place (in English) The Citizen Activity Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2023-07-AP-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A calculation of multiple diffraction loss using a sphere interception 
Sub Title (in English)  
Keyword(1) Radio Wave Propagation  
Keyword(2) Propagation Loss  
Keyword(3) Multiple-Screen-Diffraction Model  
Keyword(4) Kirchhoff approximation  
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1st Author's Name Shinichi Ichitsubo  
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Speaker Author-1 
Date Time 2023-07-12 18:20:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2023-40 
Volume (vol) vol.123 
Number (no) no.103 
Page pp.49-53 
#Pages 5 
Date of Issue 2023-07-05 (AP) 

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