Ku-band omni antenna system for satellite TTC

Author

Sivareddy, D. ; Subramanyam, A.V.G. ; Prabakaran, U. ; Srinivasan, V.V. ; Lakshmeesha, V.K.

Author_Institution

Commun. Syst. Group, ISRO Satellite Centre, Bangalore, India

fYear

2011

fDate

18-22 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, design of a wide coverage antenna for providing omni coverage in a satellite application is discussed. A hemispherical coverage is achieved by designing chokes around the circular open ended waveguide antenna. Dual circular polarization is obtained by incorporating septum polarizer in the antenna feed. Two such antennas are mounted on the spacecraft body, one on the earth viewing side and the other on the anti-earth viewing side, to provide almost 360° coverage. The design aspects of antenna elements and the system requirements to meet the mission objectives are discussed. The simulated results and measured results are presented. This antenna has flown in one of our recent spacecrafts and may also find application in many future ISRO missions.

Keywords

antenna feeds; omnidirectional antennas; polarisation; satellite antennas; waveguide antennas; ISRO mission; Ku-band omniantenna system; antenna feed; antiearth viewing side; circular open ended waveguide antenna; dual circular polarization; hemispherical coverage; satellite TTC; septum polarizer; spacecraft; telemetry-tracking-commanding system; wide coverage antenna; Antenna measurements; Antenna radiation patterns; Feeds; Helical antennas; Inductors; Space vehicles; Omni-directional antennas; waveguide choke antennas; wide coverage antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics Conference (AEMC), 2011 IEEE

Conference_Location

Kolkata

Print_ISBN

978-1-4577-1098-8

Type

conf

DOI

10.1109/AEMC.2011.6256906

Filename

6256906