Comparison of Site Attenuation Analysis Results between FDTD and Ray-Tracing Method Using Compact Anechoic Chamber
Summary :
The site attenuation is an important parameter to evaluate an anechoic chamber. The ray-tracing method has been applied to analyze it. However, the lowest applicable frequency has not been cleared. In this paper, the FDTD method has been applied to analyze the site attenuation of a compact anechoic chamber from 30 MHz to 250 MHz, and this has been compared with the calculated one by the ray-tracing method to evaluate the lowest frequency where the ray-tracing method could be applied. The compact anechoic chamber, where the absorbers are placed on the all walls, has been used for the calculation. For FDTD analysis, the dipole antenna and the absorber have been modeled by using the large cell, whose size is larger than the diameter of the antenna element. For verification, the site attenuation of a compact anechoic chamber has been measured and compared with the calculated values by the FDTD method and the ray-tracing method. As the results, the calculated values by the ray-tracing method have larger deviation than the ones by the FDTD method when the frequency is less than 180 MHz.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E88-B No.8 pp.3152-3157
- Publication Date
- 2005/08/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietcom/e88-b.8.3152
- Type of Manuscript
- Special Section PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
- Category
- Measurements
Authors
Keyword
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Masato KAWABATA, Yasuhiro ISHIDA, Kazuo SHIMADA, Nobuo KUWABARA, "Comparison of Site Attenuation Analysis Results between FDTD and Ray-Tracing Method Using Compact Anechoic Chamber" in IEICE TRANSACTIONS on Communications,
vol. E88-B, no. 8, pp. 3152-3157, August 2005, doi: 10.1093/ietcom/e88-b.8.3152.
Abstract: The site attenuation is an important parameter to evaluate an anechoic chamber. The ray-tracing method has been applied to analyze it. However, the lowest applicable frequency has not been cleared. In this paper, the FDTD method has been applied to analyze the site attenuation of a compact anechoic chamber from 30 MHz to 250 MHz, and this has been compared with the calculated one by the ray-tracing method to evaluate the lowest frequency where the ray-tracing method could be applied. The compact anechoic chamber, where the absorbers are placed on the all walls, has been used for the calculation. For FDTD analysis, the dipole antenna and the absorber have been modeled by using the large cell, whose size is larger than the diameter of the antenna element. For verification, the site attenuation of a compact anechoic chamber has been measured and compared with the calculated values by the FDTD method and the ray-tracing method. As the results, the calculated values by the ray-tracing method have larger deviation than the ones by the FDTD method when the frequency is less than 180 MHz.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.8.3152/_p
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@ARTICLE{e88-b_8_3152,
author={Masato KAWABATA, Yasuhiro ISHIDA, Kazuo SHIMADA, Nobuo KUWABARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Comparison of Site Attenuation Analysis Results between FDTD and Ray-Tracing Method Using Compact Anechoic Chamber},
year={2005},
volume={E88-B},
number={8},
pages={3152-3157},
abstract={The site attenuation is an important parameter to evaluate an anechoic chamber. The ray-tracing method has been applied to analyze it. However, the lowest applicable frequency has not been cleared. In this paper, the FDTD method has been applied to analyze the site attenuation of a compact anechoic chamber from 30 MHz to 250 MHz, and this has been compared with the calculated one by the ray-tracing method to evaluate the lowest frequency where the ray-tracing method could be applied. The compact anechoic chamber, where the absorbers are placed on the all walls, has been used for the calculation. For FDTD analysis, the dipole antenna and the absorber have been modeled by using the large cell, whose size is larger than the diameter of the antenna element. For verification, the site attenuation of a compact anechoic chamber has been measured and compared with the calculated values by the FDTD method and the ray-tracing method. As the results, the calculated values by the ray-tracing method have larger deviation than the ones by the FDTD method when the frequency is less than 180 MHz.},
keywords={},
doi={10.1093/ietcom/e88-b.8.3152},
ISSN={},
month={August},}
Copy
TY - JOUR
TI - Comparison of Site Attenuation Analysis Results between FDTD and Ray-Tracing Method Using Compact Anechoic Chamber
T2 - IEICE TRANSACTIONS on Communications
SP - 3152
EP - 3157
AU - Masato KAWABATA
AU - Yasuhiro ISHIDA
AU - Kazuo SHIMADA
AU - Nobuo KUWABARA
PY - 2005
DO - 10.1093/ietcom/e88-b.8.3152
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2005
AB - The site attenuation is an important parameter to evaluate an anechoic chamber. The ray-tracing method has been applied to analyze it. However, the lowest applicable frequency has not been cleared. In this paper, the FDTD method has been applied to analyze the site attenuation of a compact anechoic chamber from 30 MHz to 250 MHz, and this has been compared with the calculated one by the ray-tracing method to evaluate the lowest frequency where the ray-tracing method could be applied. The compact anechoic chamber, where the absorbers are placed on the all walls, has been used for the calculation. For FDTD analysis, the dipole antenna and the absorber have been modeled by using the large cell, whose size is larger than the diameter of the antenna element. For verification, the site attenuation of a compact anechoic chamber has been measured and compared with the calculated values by the FDTD method and the ray-tracing method. As the results, the calculated values by the ray-tracing method have larger deviation than the ones by the FDTD method when the frequency is less than 180 MHz.
ER -
English
