Title :
Low-loss material coating for horn antenna beam shaping
Author :
Liu, K. ; Balanis, C.A. ; Barber, G.C.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A comprehensive study of the coating on the inner walls of a horn antenna is very beneficial for minimizing unnecessary losses while maintaining the same beam shape. An analytic method to investigate ohmic losses is presented. Based on the analytic investigations, guidelines are provided for low-loss designs of lossy material coatings for horn antenna beam shaping. Experimental results in support of the theory are also presented.<>
Keywords :
coatings; dielectric-loaded antennas; directive antennas; losses; waveguide antennas; horn antenna beam shaping; inner walls; lossy magnetic material; low-loss material coating; ohmic losses; Coatings; Conducting materials; Dielectric losses; Dielectric materials; Electromagnetic waveguides; Guidelines; Horn antennas; Magnetic materials; NASA; Waveguide transitions;
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.1991.175176
