Title :
Reduction of scattering from gaps between reflector antenna panels by using artificially soft edges
Author :
Kildal, P.-S. ; Steen, L. ; Napier, P.
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
The authors present a method to reduce the scattering from reflector gaps. The reduction is obtained by providing the edges of the panels with one or more corrugations. The corrugations make the edge act as an artificially soft surface. In order to verify the idea of soft edges. a model consisting of two panels with a narrow gap between them has been measured. The transmitted field was reduced by more than 10 dB over a 20% bandwidth using a single corrugation.<>
Keywords :
antenna reflectors; reflector antennas; artificially soft edges; corrugations; reflector antenna panels; reflector gaps; scattering reduction; transmitted field; Acoustic scattering; Boundary conditions; Corrugated surfaces; Dielectrics; Electromagnetic scattering; Polarization; Radio astronomy; Reflector antennas; Surface acoustic waves; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.175091
