Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905150
