Title :
Design and experimental validations of a new shaped subreflector geometry for Cassegrain system
Author :
Floreani, M.G. ; Zich, R.E. ; Aulisio, G.
Author_Institution :
Dipt. di Elettronica, Politecnico di Milano, Italy
Abstract :
A new shaped subreflector geometry for a Cassegrain system is presented. The idea is to deform the classical hyperboloidal surface to reduce the spillover and the cross-polarization. The high gain antenna so obtained is validated by experiment which illustrates the excellent results for a 60 cm antenna/80 mm subreflector system in the frequency range between 37 and 40 GHz. Different types of antennas have been designed and produced.
Keywords :
antenna testing; electromagnetic wave polarisation; millimetre wave antennas; reflector antennas; 30 cm; 37 to 40 GHz; 40 mm; Cassegrain system; EHF; cross-polarization; experimental validation; frequency range; high gain antenna; hyperboloidal surface; shaped subreflector geometry; spillover reduction; Antenna measurements; Apertures; Ellipsoids; Feeds; Frequency measurement; Geometry; Polarization; Radio frequency; Reflector antennas; Resumes;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.875346
