Title :
Suppression of slot mode in slotted waveguide antennas
Author :
Garg, Ramesh ; Gupta, K.C.
Author_Institution :
Advanced Centre for Electronic Systems, Indian Institute of Technology, Kanpur, India
fDate :
9/1/1975 12:00:00 AM
Abstract :
It has been found experimentally that the efficiency of radiation of the slot mode in slotted waveguide antennas increases with the slot width. The excitation of the slot mode can be prevented by covering the slot with a thin film of metal. Alternatively, the slot may be covered with a sheet of dielectric to suppress the slot mode.
Keywords :
Leaky-wave antennas; Slot antennas; Waveguide antennas; Antennas and propagation; Apertures; Dielectric thin films; Feeds; Lenses; Loaded antennas; Optical waveguides; Slot antennas; Tellurium; Testing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1975.1141157
