Title: Designing Cassegrain antenna with axially corrugated horn feed and investigating the effects of the feed antenna gain on optimum dimensions and specifications of the Cassegrain antenna
Authors: Alireza Sharifi
Addresses: Department of Engineering, University of Zanjan, Zanjan, 45371-38791, Iran
Abstract: In this paper, geometric dimensions of Cassegrain antenna are designed in the case of the use of axially corrugated conical horn antenna as the feed antenna. The main issue in the design of the Cassegrain antenna is to calculate the dimensions of the feed antenna and the subreflector antenna so that the amount of aperture obstruction can be minimised and the radiation efficiency is increased. After presenting the design method, an illustrative design example is mentioned. Also the effects of selecting different gain values for the feed antenna, on the dimensions and characteristics of the structure is studied.
Keywords: Cassegrain antenna; axially corrugated conical horn; cross polarisation; aperture efficiency.
International Journal of Computer Aided Engineering and Technology, 2022 Vol.17 No.2, pp.208 - 220
Received: 03 Jun 2019
Accepted: 05 Feb 2020
Published online: 24 Aug 2022 *