Low back radiation compact antenna for data downlink in LEO satellites

Author

Galván, Julián ; Colantonio, Dante

Author_Institution

Antenna Group-Technol. Transfer Div., IAR (Inst. Argentino de Radioastronom.), Buenos Aires, Argentina

fYear

2009

Firstpage

816

Lastpage

820

Abstract

We describe the design, manufacturing and measurement of an antenna with an hemispherical type radiation pattern used in the space segment X-band data downlink subsystem. In particular, this antenna corresponds to the flight model of mission SAC-D/AQUARIUS, which is a LEO earth observation satellite. The chosen solution is a compact choke ring type antenna, which reduces back radiation. By using a septum polarizer, selectable polarization, high power handling, and high structural stiffness are achieved.

Keywords

antenna radiation patterns; artificial satellites; millimetre wave antennas; satellite antennas; LEO earth observation satellite; antenna measurement; compact choke ring type antenna; data downlink; flight model; hemispherical type radiation pattern; low back radiation compact antenna; septum polarizer; space segment X-band data downlink subsystem; Antenna accessories; Antenna measurements; Antenna radiation patterns; Artificial satellites; Downlink; Inductors; Low earth orbit satellites; Manufacturing; Polarization; Satellite antennas; Choke Ring; Hemispherical Pattern; Low Back Radiation; Septum Polarizer;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International

Conference_Location

Belem

ISSN

1679-4389

Print_ISBN

978-1-4244-5356-6

Electronic_ISBN

1679-4389

Type

conf

DOI

10.1109/IMOC.2009.5427466

Filename

5427466