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Aperture usage is one of the most important problem in reflector-based compact antenna test range(CATR). Single reflector CATR provides very low aperture usage, normally 30%, because of the effects of edge diffraction. In order to solve this problem, serrated edges and rolled edges are generally chosen along the reflector's edge to reduce the edge diffraction field inside quiet zone(QZ) of the CATR...
In this paper, a compact tanh/linear dual profile corrugated horn in millimeter-wave band is proposed. To reduce the size of the horn and achieve a low sidelobe level, the parameters of the corrugation profile have been optimized by the commercial software CHAMP. At the central frequency of 94 GHz, the simulation results show that the proposed horn can achieve very low sidelobe around −50 dB with...
A tri-pin tri-mode corrugated matched horn with low side lobes is proposed to compensate the cross-polar component in high performance offset reflector systems. The simulated results are presented, showing that the cross-polar isolation in the offset tri-reflector compact range is improved from 30.5dB to 48.2dB when the proposed horn is used.
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...
The concept of conjugated field match has been extended to the proposed offset tri-reflector compact range, and a novel tri-slot tri-mode corrugated matched horn has also been developed in this letter. First, the analysis on the field in the focal region of the proposed tri-reflector compact range has been carried out, and a matched aperture field for a multimode corrugated horn is constituted, which...
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