Reflector Antenna Distortion Analysis Using MEFCM

Author

Duan, B.Y. ; Wang, C.S.

Author_Institution

Res. Inst. on Mechatron., Xidian Univ., Xian, China

Volume

57

Issue

10

fYear

2009

Firstpage

3409

Lastpage

3413

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;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2028703

Filename

5175499