Title :
An efficient rectangular hat feed for linear polarization and low sidelobes
Author :
Moldsvor, A. ; Raberger, M. ; Kildal, P.-S.
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
fDate :
June 28 1993-July 2 1993
Abstract :
A cheap alternative to the swan-neck feed, which can obtain low sidelobes even without an absorbing cylinder is presented. This feed is called the rectangular hat feed. The ideas of soft and hard surfaces have been used to optimize the performance of this linearly polarized feed. It can give low sidelobes and has broader bandwidth than the circular hat feed.<>
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; rectangular waveguides; reflector antenna feeds; bandwidth; linear polarization; low sidelobes; performance; rectangular hat feed; reflector antenna feed; Antenna feeds; Apertures; Boundary conditions; Conductors; Manufacturing; Narrowband; Polarization; Radio link; Rectangular waveguides; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385352
