Title :
Ring-Shaped Dielectric Antenna
Author :
Hristov, H.D. ; Urumov, J.R. ; Semov, M.J.
Author_Institution :
Department of Radiotechnics, Higher Institute of Mechanical and Electrical Engineering, 9010 Varna, Bulgaria
Abstract :
This paper describes some results of an extensive theoretical and experimental work on a novel type of antenna design-a ring-shaped dielectric antenna. It consists of two basic elements:a dielectric ring and a primary feed. One possible construction of a such antenna has a ring with rectangular cross-section and a waveguide-dielectric radiator serves as a primary source. The optimum dielectric ring for a maximum antenna gain gets into the second Fresnel zone. A radiation theory and experimental results for an X-band antenna model are given in the paper. It is concluded that a ring shaped dielectric antenna is an efficient directional radiator with simple and cheap construction.
Keywords :
Antenna feeds; Antenna radiation patterns; Antenna theory; Aperture antennas; Dielectrics; Directive antennas; Fresnel reflection; Gain; Rectangular waveguides; Waveguide theory;
Conference_Titel :
Microwave Conference, 1980. 10th European
Conference_Location :
Warszawa, Poland
DOI :
10.1109/EUMA.1980.332815
