Corrugated horn antenna for CosmoGal satellite with reduced dimensions

Author

Soares, Pedro ; Pinho, Pedro ; Goncalves, Ricardo

Author_Institution

Inst. Sup. Eng. Lisboa - ISEL, Lisbon, Portugal

fYear

2014

fDate

6-11 July 2014

Firstpage

1648

Lastpage

1649

Abstract

This paper presents the design methodology for the creation of corrugated horn antennas for the CosmoGal satellite. The mission will collect the radiation of the cosmic microwave background, by a radiometer in three different radio astronomy frequency bands (10.6-10.7GHz; 15.35-15.4GHz; 23.6-24GHz). It is discussed the design of several types of horns, simulated with the CST software. The best result points to a choked Gaussian corrugated horn antenna, with directivity of 23 dBi, side lobes 35 dB below and cross polarization better than -45 dB. Plus, with the advantage of having a small dimension, with a total length of only 7.43λ.

Keywords

directive antennas; horn antennas; radioastronomy; radiofrequency cosmic radiation; radiometers; satellite antennas; CST software; CosmoGal satellite; choked Gaussian corrugated horn antenna; cosmic microwave background radiation; cross polarization; design methodology; frequency 10.6 GHz to 10.7 GHz; frequency 15.35 GHz to 15.4 GHz; frequency 23.6 GHz to 24 GHz; radio astronomy frequency bands; radiometer; reduced dimensions; Horn antennas; Microwave antennas; Microwave radiometry; Satellite antennas; Satellite broadcasting; Satellites;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905150

Filename

6905150