DESIGN OF A NOVEL COMPACT CUP FEED FOR PARABOLIC REFLECTOR ANTENNAS | Zendy

Amir Moallemizadeh | Zendy; Reza Sarraf Shirazi | Zendy; Mohammad Bod | Zendy

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DESIGN OF A NOVEL COMPACT CUP FEED FOR PARABOLIC REFLECTOR ANTENNAS

Author(s) -

Amir Moallemizadeh,

Reza Sarraf Shirazi,

Mohammad Bod

Publication year - 2016

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl16100501

Subject(s) - reflector (photography) , parabolic reflector , cassegrain antenna , offset dish antenna , feed horn , optics , parabolic antenna , materials science , physics , computer science , periscope antenna , telecommunications , antenna measurement , antenna (radio) , light source

This paper describes the concept and design of a novel compact self-supported cup feed antenna for parabolic reflectors. The feed antenna consists of an open waveguide cup which is excited by a disk loaded dipole. This structure is fed by a coaxial waveguide through a split-coaxial balun and has a rear radiation pattern toward the reflector antenna. Two different types of this configuration are designed in this paper: a linearly-polarized grid reflector antenna fed by a single dipole excitation, and a circularly-polarized solid reflector antenna fed by a cross dipole excitation. The measurement is done for the former, and simulation results of the latter via two different software packages CST and HFSS are compared in this paper. Analyzing the results shows that both types of cup feed antenna have an excellent aperture efficiency and low side lobe level.

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