Title :
Design and experimental validations of a new shaped subreflector geometry for EMC oriented Cassegrain system
Author :
Floreani, M.G. ; Zich, R.E. ; Aulisio, G.
Author_Institution :
Dipt. di Elettrotecnica, Politecnico di Milano, Italy
Abstract :
A new shaped subreflector geometry for EMC oriented Cassegrain system is presented. The idea is to deform the classical hyperboloidal surface to reduce the spillover and the crosspolarization. The high gain antenna obtained can be used as a test antenna to detect external noises or to reduce the cross-polarization in a telecommunication system. Experimental validations resume the excellent results obtained for a 60 cm antenna/80 mm subreflector system in the 37-40 GHz frequency range. Different kind of antennas have been designed and now produced
Keywords :
antenna testing; electromagnetic compatibility; electromagnetic wave polarisation; reflector antennas; 37 to 40 GHz; 60 cm; 80 cm; EMC oriented Cassegrain system; cross-polarization reduction; frequency range; high gain antenna; hyperboloidal surface deformation; shaped subreflector geometry; spillover reduction; telecommunication system; test antenna; Aperture antennas; Diffraction; Electromagnetic compatibility; Feeds; Frequency; Geometry; Jacobian matrices; Optical surface waves; Polarization; Polynomials;
Conference_Titel :
Environmental Electromagnetics, 2000. CEEM 2000. Proceedings. Asia-Pacific Conference on
Conference_Location :
Shanghai
Print_ISBN :
7-5635-0420-6
DOI :
10.1109/CEEM.2000.853923
