Title :
Cavity-backed slot antenna
Author_Institution :
Inst. of Radio Phys. & Electron., Kharkov, Ukraine
Abstract :
A novel cavity-backed slot antenna is proposed and experimentally studied. The antenna consists of a slot cut in a ground plane and backed by shorting strips, forming a backing cavity. Preliminary results based on a prototype show a 2:1 VSWR input impedance bandwidth of more than 20%, which can be further enhanced. The antenna allows an efficient excitation by coaxial or strip lines from either side of the ground plane.
Keywords :
antenna earths; antenna radiation patterns; slot antennas; surface impedance; VSWR input impedance bandwidth; backing cavity; cavity-backed slot antenna; coaxial lines; efficient excitation; ground plane; radiation pattern; shorting strips; strip lines; Bandwidth; Coaxial components; Frequency; Geometry; Impedance; Narrowband; Physics; Prototypes; Rectangular waveguides; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220318
