CST – Computer Simulation Technology

High Performance Corrugated Horn Antennas for CosmoGal Satellite
Pedro A.G. Soares, Pedro Pinho, C.A. Wuensche
Conference on Electronics, Telecommunications and Computers – CETC 2013
Volume 17, 2014
Corrugated Horn Antennas, Choked Antenna, Gaussian profile horns, CMB, Satellite,
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 (10.6-10.7 GHz; 15.35-15.4 GHz; 23.6-24 GHz). It is discussed the design study of several types of horns, simulated on the CST software. The best result points to a choked Gaussian corrugated horn antenna, with directivity of 23dBi, side lobes below -35 dB and cross polarization better than -45 dB.

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