Uniform diffraction solution for a discontinuity in curvature

James, G.L.; Tong, G.; Ross, Douglas A.

doi:10.1049/el:19750426

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The edge treatment of reflector was recognized as a critical effect solution to minimize edge diffraction effects, as demonstrated by the early designs of CATR. [2][3][4][5][6][7] Although the reflector edge treatment can improve aperture usage efficiency, it can hardly be up to 50%.…”

Section: Introductionmentioning

confidence: 99%

Verification of the shaped beam feed for high aperture usage efficiency single offset parabolic reflector compact antenna test range

Zhang

Yao

Chen

et al. 2022

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this letter, to verify that the shaped beam feed can enhance the aperture usage efficiency of a single‐offset parabolic reflector compact antenna test range (CATR), a shaped beam horn is proposed. First, we obtain the radiation intensity function of the feed. Then, a coaxial cavity horn feed with a half‐ring is designed to shape the illumination that reaches the main reflector. Measured results demonstrate that, with no edge treatment, the quiet zone size can be up to 75% of the main reflector diameter under 1.20 dB amplitude variations and 12° phase variations at 102.40 GHz, and 70% aperture usage efficiency ranging from 102 to 103 GHz with phase variations less than 12° and amplitude variations less than 1.40 dB. The design verifies that the shaped beam feed can enhance the aperture usage efficiency of a single‐offset CATR.

show abstract