Title :
Reflector Antenna Distortion Analysis Using MEFCM
Author :
Duan, B.Y. ; Wang, C.S.
Author_Institution :
Res. Inst. on Mechatron., Xidian Univ., Xian, China
Abstract :
The impact of random errors and systematic errors due to reflector surface distortions is discussed by using Ruze formula in conjunction with the mechanical-electromagnetic-field coupling model (MEFCM). Ruze formula demands too rigorous reflector precision and manufacturing accuracy due to not taking the systematic error into consideration. The best-fitting method treats the systematic error, but not random error. The MEFCM takes both systematic error and random error into account. Numerical examples of 7.3 m and 40 m diameter reflector antenna validate the method proposed. The proposed MEFCM method integrates the mechanical design with electromagnetic analysis in order to optimize the reflector antenna design.
Keywords :
antenna theory; electromagnetic coupling; error statistics; measurement errors; random processes; reflector antennas; MEFCM method; Ruze formula; best-fitting method; electromagnetic analysis; mechanical design; mechanical-electromagnetic-field coupling model; random error; reflector antenna surface distortion analysis; size 40 m; size 7.3 m; systematic error; Assembly systems; Electromagnetic analysis; Frequency; Gaussian distribution; Loaded antennas; Manufacturing; Mechatronics; Optical surface waves; Reflector antennas; Surface treatment; Surface waves; Coupling field model; Ruze formula; random error; reflector antenna; systematic error;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2028703
