Design and realization of tracking feed antenna system

IEICE Electronics Express

M. Naser-Moghadasi¹  S. H. Mohseni Armaki²  F. Hojat Kashani²  J. R. Mohassel³ 

[1] Faculty of Eng. Science and Research Branch, Islamic Azad University;Electrical engineering faculty, Iran University of science and technology;Electrical engineering faculty, University of Tehran

关键词: monopulse tracking feed;    corrugated horn;    mode coupler;    polarizer;   

DOI  :  10.1587/elex.8.908

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)This paper describes the design and realization of a multi-mode tracking feed antenna system, for a circularly polarized wave, which can generate sum and difference patterns suitable for monopulse tracking in remote sensing earth stations. It uses TE11 and TE21 modes, in a smooth circular waveguide, to obtain the sum and difference patterns. The higher order mode, TE21 generated within the feed is separated from the fundamental mode, TE11 by using a mode coupler. Circular polarization is converted to linear polarization by pin polarizer septum. The design of the multimode corrugated horn and polarizer are described in some details. The prototyped horn designed here operates in the frequency range of 7.2-8.8GHz. Sum and delta patterns and polarizer axial ratio are presented. The close agreement between measured and simulated data validates the present design.

【 授权许可】

Unknown