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Paper Abstract and Keywords
Presentation 2017-04-20 14:50
Measurements of radio propagation considering the propagation direction in mature and deciduous stages in 920-MHz band in a mulberry farm
Chihiro Yamada, Takumi Nishimura, Ryosuke Yoshimura, Hitoshi Shimasaki, Yuichi Kado, Masatoshi Ichida (KIT) AP2017-8
Abstract (in Japanese) (See Japanese page) 
(in English) Radio wave propagation characteristics were measured in 920 MHz band in a mulberry farm, in order to calculate the link budget for construction of a farm sensor network. The height of transmitting and receiving antennas was fixed at 1.5 m. The receiving antenna was placed in a circle around the transmitting antenna and the RSSI (Received Signal Strength Indication) was measured. The measured RSSIs were converted to path losses and they were compared among mature stage, deciduous stage, and without plant case. As a result, it was found that horizontal polarization was mainly influenced by leaves and that vertical polarization was mainly influenced by trunks and branches. Also, the deviation of the measured values was smaller in horizontal polarization than in vertical polarization. The obtained radio wave propagation characteristics are useful for building a farm sensor network.
Keyword (in Japanese) (See Japanese page) 
(in English) Radio wave propagation / Path loss / UHF / Microwave / Farm / Wireless sensor network / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 2, AP2017-8, pp. 41-46, April 2017.
Paper # AP2017-8 
Date of Issue 2017-04-13 (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)
Download PDF AP2017-8

Conference Information
Committee AP  
Conference Date 2017-04-20 - 2017-04-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka university 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2017-04-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurements of radio propagation considering the propagation direction in mature and deciduous stages in 920-MHz band in a mulberry farm 
Sub Title (in English)  
Keyword(1) Radio wave propagation  
Keyword(2) Path loss  
Keyword(3) UHF  
Keyword(4) Microwave  
Keyword(5) Farm  
Keyword(6) Wireless sensor network  
Keyword(7)  
Keyword(8)  
1st Author's Name Chihiro Yamada  
1st Author's Affiliation Kyoto Institute of Technology (KIT)
2nd Author's Name Takumi Nishimura  
2nd Author's Affiliation Kyoto Institute of Technology (KIT)
3rd Author's Name Ryosuke Yoshimura  
3rd Author's Affiliation Kyoto Institute of Technology (KIT)
4th Author's Name Hitoshi Shimasaki  
4th Author's Affiliation Kyoto Institute of Technology (KIT)
5th Author's Name Yuichi Kado  
5th Author's Affiliation Kyoto Institute of Technology (KIT)
6th Author's Name Masatoshi Ichida  
6th Author's Affiliation Kyoto Institute of Technology (KIT)
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Speaker Author-1 
Date Time 2017-04-20 14:50:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2017-8 
Volume (vol) vol.117 
Number (no) no.2 
Page pp.41-46 
#Pages 6 
Date of Issue 2017-04-13 (AP) 

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