Analysis of focal region field of the offset tri-reflector for Compact Antenna Test Range
This paper presents the analysis of the focal region field of the proposed tri-reflector for Compact Antenna Test Range and the matched aperture field for a multimode corrugated horn. The analysis has been carried out by commercial software GRASP and the developed MATLAB program. Numerical results are presented, showing a good match between the two fields. This field can be used to design a matched corrugated horn to compensate the cross-polar field of the offset tri-reflector CATR.