Paper Abstract and Keywords |
Presentation |
2015-07-16 09:45
Radiation of electromagnetic wave from an antenna placed close to a boundary of materials
-- Simulation of GPR antenna -- Motoyuki Sato, Kazunori Takahashi, Yuka Asaya, Yasushi Iitsuka (Tohoku Univ.) EMT2015-20 MW2015-58 OPE2015-32 EST2015-24 MWP2015-23 Link to ES Tech. Rep. Archives: EMT2015-20 MW2015-58 OPE2015-32 EST2015-24 MWP2015-23 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Antennas for GPR(Ground Penetrating Radar) is placed close to the half-space boundary of air and soil (dielectric material). Electromagnetic wave radiation from the antenna is strongly influenced by the material around the antenna. Currently in Japan, the EM radiation is limited to the level of “Weak radio station condition” defined by the “Radio Law” of Japan. However, EM field strength from GPR under the measurement conditions defined by the “Radio Law” is very different from that in normal operation mode. In this report, we demonstrate that the most of the EM energy from the GPR antenna placed 1/10 wavelength from the ground surface is transmitted into the soil, but not to air, due to a wave trapped along the boundary, and these phenomena disappears if the antenna is located more than 1/3 wavelength above the ground surface. We propose here that the GPR electromagnetic wave field strength should be evaluated in the operational mode on the soil. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Ground Penetrating Radar / GPR / Weak radio station condition / Antenna near medium / FDTD / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 141, EMT2015-20, pp. 65-70, July 2015. |
Paper # |
EMT2015-20 |
Date of Issue |
2015-07-09 (EMT, MW, OPE, EST, MWP) |
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 |
EMT2015-20 MW2015-58 OPE2015-32 EST2015-24 MWP2015-23 Link to ES Tech. Rep. Archives: EMT2015-20 MW2015-58 OPE2015-32 EST2015-24 MWP2015-23 |
Conference Information |
Committee |
EMT MW OPE MWP EST IEE-EMT |
Conference Date |
2015-07-16 - 2015-07-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kushiro City Lifelong Learning Center |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Light wave & Electromagnetic Wave Workshop |
Paper Information |
Registration To |
EMT |
Conference Code |
2015-07-EMT-MW-OPE-MWP-EST-EMT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Radiation of electromagnetic wave from an antenna placed close to a boundary of materials |
Sub Title (in English) |
Simulation of GPR antenna |
Keyword(1) |
Ground Penetrating Radar |
Keyword(2) |
GPR |
Keyword(3) |
Weak radio station condition |
Keyword(4) |
Antenna near medium |
Keyword(5) |
FDTD |
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1st Author's Name |
Motoyuki Sato |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Kazunori Takahashi |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Yuka Asaya |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Yasushi Iitsuka |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-07-16 09:45:00 |
Presentation Time |
25 minutes |
Registration for |
EMT |
Paper # |
EMT2015-20, MW2015-58, OPE2015-32, EST2015-24, MWP2015-23 |
Volume (vol) |
vol.115 |
Number (no) |
no.141(EMT), no.142(MW), no.143(OPE), no.144(EST), no.145(MWP) |
Page |
pp.65-70 |
#Pages |
6 |
Date of Issue |
2015-07-09 (EMT, MW, OPE, EST, MWP) |
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