Numerical synthesis of tri‐reflector CATR with high cross‐polarisation isolation. Issue 15 (1st July 2016)

• Record Type: Journal Article
• Authors: Yang, Cheng; Yu, Junsheng; Yao, Yuan; Liu, Xiaoming; Chen, Xiaodong
• Is Part Of: Electronics letters. Volume 52:Issue 15(2016)
• Page Start: 1286
• Page End: 1288
• Publication Date: 2016-07-01
• Subjects: antenna radiation patterns -- antenna testing -- reflector antennas -- geometry; numerical synthesis -- tri‐reflector CATR -- high cross‐polarisation isolation -- tri‐reflector compact antenna test range -- paraboloidal main reflector -- shaped sub‐reflectors -- system geometry -- antenna geometry; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.0088
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : In this Letter, a tri‐reflector compact antenna test range (CATR) with a paraboloidal main reflector and two shaped sub‐reflectors is synthesised by the kinematic and dynamic ray tracing method, while the high cross‐polarisation isolation is achieved through the proposed system geometry. Numerical simulations by general responsibility assignment software patterns demonstrate that a cross‐polarisation isolation >40 dB and a peak‐to‐peak amplitude (phase) ripple <1 dB (10°) can be achieved on the principal cuts of the designed quiet zone at 90–325 GHz. This clearly shows that the high cross‐polarisation isolation in such a tri‐reflector CATR can be achieved by the proposed antenna geometry without depolarisation control in the shaping procedure.