Portal de Periódicos da CAPES

Aperture efficiency and line feed phase center of parabolic cylindrical reflector antenna

1984; Institute of Electrical and Electronics Engineers; Volume: 32; Issue: 6 Linguagem: Inglês

10.1109/tap.1984.1143370

1558-3643

Per-Simon Kildal,

Electromagnetic Scattering and Analysis

Formulas for calculation of the aperture efficiency of a parabolic cylindrical reflector antenna fed by a line feed along the focal line are presented. The efficiency is factorized into a number of subefficiencies which include contributions from line feed end diffraction, and from blockage and reflections from line feed supports and from diffraction by gaps in the reflector surface. One of the subefficiencies is used to define a phase center for the line feed as well as to obtain a formula for calculating it.