High performance reflector hat antenna with very low sidelobes for radio-link applications

Author

Hansen, Jonas ; Kishk, A.A. ; Kildal, P.-S. ; Dahlsjo, O.

Author_Institution

Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

2

fYear

1995

fDate

18-23 June 1995

Firstpage

893

Abstract

Reflector antennas with self supported waveguide feeds of swan-neck type are often used in radio link systems. If there are requirements for very low sidelobes, it is common to attach an absorbing cylinder to the rim of the reflector. Both the cylinder and the feed are expensive to manufacture. The paper describes a so called hat antenna which is cheap to manufacture, compact, light-weight and in addition has very low sidelobe performance. An experimental model with 43 cm reflector diameter has been built and measured at 15 and 30 GHz.

Keywords

antenna radiation patterns; antenna testing; microwave antennas; microwave links; reflector antenna feeds; reflector antennas; 15 GHz; 21.5 cm; 30 GHz; SHF; absorbing cylinder; experimental model; radio link applications; radio link systems; reflector diameter; reflector hat antenna; very low sidelobe performance; very low sidelobes; waveguide feeds; Antenna feeds; Antenna measurements; Antenna radiation patterns; Apertures; Bandwidth; Moment methods; Optimization methods; Radar antennas; Radio link; Reflector antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1995. AP-S. Digest

Conference_Location

Newport Beach, CA, USA

Print_ISBN

0-7803-2719-5

Type

conf

DOI

10.1109/APS.1995.530161

Filename

530161