TY - GEN
T1 - Influence of the metallic shield on the antenna temperature calibration for the microwave radiometer
AU - Hui, Xiao
AU - Jungang, Miao
AU - Yujie, Yang
AU - Yi, Peng
PY - 2007
Y1 - 2007
N2 - In the calibration of a microwave radiometer, the calibration load is equipped with a metallic shield. The metallic shield is found to introduce aberration to the measurements of the antenna temperature. In this work, a ray-tracing model is constructed for the aberration analysis, which is based on the radiation transfer theory taking into account both the conductivity of the metal and the temperature distribution of the shield. Calculation results indicate that the temperature aberration due to the metal shield can be up to a few tenths of Kelvin, depending on the metal, the geometry of the shield and the size of the antenna. The calculation result is also compared with the experimental data.
AB - In the calibration of a microwave radiometer, the calibration load is equipped with a metallic shield. The metallic shield is found to introduce aberration to the measurements of the antenna temperature. In this work, a ray-tracing model is constructed for the aberration analysis, which is based on the radiation transfer theory taking into account both the conductivity of the metal and the temperature distribution of the shield. Calculation results indicate that the temperature aberration due to the metal shield can be up to a few tenths of Kelvin, depending on the metal, the geometry of the shield and the size of the antenna. The calculation result is also compared with the experimental data.
KW - Brightness temperature
KW - Radiation transfer theory
KW - Radiometer calibration
UR - https://www.scopus.com/pages/publications/47649129810
U2 - 10.1109/MAPE.2007.4393704
DO - 10.1109/MAPE.2007.4393704
M3 - 会议稿件
AN - SCOPUS:47649129810
SN - 1424410444
SN - 9781424410446
T3 - IEEE 2007 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE
SP - 648
EP - 651
BT - IEEE 2007 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE
PB - IEEE Computer Society
T2 - 2007 IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications, MAPE 2007
Y2 - 14 August 2007 through 17 August 2007
ER -