IEICE TRANSACTIONS on Communications
Average of the Height-Dependent Antenna Factor
Summary :
Theoretical analyses are carried out on the height dependence of the antenna factor of an EMI antenna to develop an antenna calibration method that can provide the free-space value of the antenna factor. It is found that the antenna factor in general varies with the antenna height in a quasi-periodic way with a period of about λ/2. Thus, the present paper proposes to take an average of the antenna factors over a height range of about λ/2 to obtain an accurate estimate of the free-space antenna factor. Effective antenna arrangements are also proposed for the antenna calibration. Deviations in the estimate from the free-space antenna factor are less than 0.1 dB for tuned dipoles in the frequency range above 50 MHz. But the errors increase up to 0.3 dB at about 35 MHz. For broadband antennas, the free-space antenna factor can be accurately estimated by taking the average of the antenna factors. Errors are estimated to be less than 0.3 dB in the frequency range from 30 MHz to 1000 MHz.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E88-B No.8 pp.3108-3114
- Publication Date
- 2005/08/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietcom/e88-b.8.3108
- Type of Manuscript
- Special Section INVITED PAPER (Special Section of 2004 International Symposium on Electromagnetic Compatibility)
- Category
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Katsumi FUJII, Akira SUGIURA, "Average of the Height-Dependent Antenna Factor" in IEICE TRANSACTIONS on Communications,
vol. E88-B, no. 8, pp. 3108-3114, August 2005, doi: 10.1093/ietcom/e88-b.8.3108.
Abstract: Theoretical analyses are carried out on the height dependence of the antenna factor of an EMI antenna to develop an antenna calibration method that can provide the free-space value of the antenna factor. It is found that the antenna factor in general varies with the antenna height in a quasi-periodic way with a period of about λ/2. Thus, the present paper proposes to take an average of the antenna factors over a height range of about λ/2 to obtain an accurate estimate of the free-space antenna factor. Effective antenna arrangements are also proposed for the antenna calibration. Deviations in the estimate from the free-space antenna factor are less than 0.1 dB for tuned dipoles in the frequency range above 50 MHz. But the errors increase up to 0.3 dB at about 35 MHz. For broadband antennas, the free-space antenna factor can be accurately estimated by taking the average of the antenna factors. Errors are estimated to be less than 0.3 dB in the frequency range from 30 MHz to 1000 MHz.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.8.3108/_p
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@ARTICLE{e88-b_8_3108,
author={Katsumi FUJII, Akira SUGIURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Average of the Height-Dependent Antenna Factor},
year={2005},
volume={E88-B},
number={8},
pages={3108-3114},
abstract={Theoretical analyses are carried out on the height dependence of the antenna factor of an EMI antenna to develop an antenna calibration method that can provide the free-space value of the antenna factor. It is found that the antenna factor in general varies with the antenna height in a quasi-periodic way with a period of about λ/2. Thus, the present paper proposes to take an average of the antenna factors over a height range of about λ/2 to obtain an accurate estimate of the free-space antenna factor. Effective antenna arrangements are also proposed for the antenna calibration. Deviations in the estimate from the free-space antenna factor are less than 0.1 dB for tuned dipoles in the frequency range above 50 MHz. But the errors increase up to 0.3 dB at about 35 MHz. For broadband antennas, the free-space antenna factor can be accurately estimated by taking the average of the antenna factors. Errors are estimated to be less than 0.3 dB in the frequency range from 30 MHz to 1000 MHz.},
keywords={},
doi={10.1093/ietcom/e88-b.8.3108},
ISSN={},
month={August},}
Copy
TY - JOUR
TI - Average of the Height-Dependent Antenna Factor
T2 - IEICE TRANSACTIONS on Communications
SP - 3108
EP - 3114
AU - Katsumi FUJII
AU - Akira SUGIURA
PY - 2005
DO - 10.1093/ietcom/e88-b.8.3108
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2005
AB - Theoretical analyses are carried out on the height dependence of the antenna factor of an EMI antenna to develop an antenna calibration method that can provide the free-space value of the antenna factor. It is found that the antenna factor in general varies with the antenna height in a quasi-periodic way with a period of about λ/2. Thus, the present paper proposes to take an average of the antenna factors over a height range of about λ/2 to obtain an accurate estimate of the free-space antenna factor. Effective antenna arrangements are also proposed for the antenna calibration. Deviations in the estimate from the free-space antenna factor are less than 0.1 dB for tuned dipoles in the frequency range above 50 MHz. But the errors increase up to 0.3 dB at about 35 MHz. For broadband antennas, the free-space antenna factor can be accurately estimated by taking the average of the antenna factors. Errors are estimated to be less than 0.3 dB in the frequency range from 30 MHz to 1000 MHz.
ER -
English
