Title :
Effect of dielectric loading on a surface wave horn antenna
Author :
Agrawal, Nawal K. ; Guha, Dipak
Author_Institution :
University of Roorkee, Roorkee, India
Abstract :
Dielectric spheres of different radius are placed in front of a

-plane sectoral surface wave horn antenna. The radiation characteristics of the horn are changed due to the position of the sphere. An improvement in directivity of the antenna is observed. The side lobe levels are considerably reduced. The results are quite encouraging. The composite system can be used as an improved feed to the paraboloidal system.
Keywords :
Apertures; Boundary conditions; Dielectrics; Electrooptic effects; Feeds; Geometry; Horn antennas; Loaded antennas; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1979
DOI :
10.1109/APS.1979.1148211