Title :
Experimental Studies of Cavity-Backed Bowtie Antenna with Pattern Improvement
Author :
Qu, Shi-Wei ; Li, Jia-Lin ; Xue, Quan ; Chan, Chi Hou
Abstract :
In this paper, a cavity-backed antenna is proposed, and a bowtie exciter with four round corners is employed for wideband operation. The stable radiation patterns of the proposed antenna are achieved by a ring placed between the bowtie exciter and the ground plane. It is fed by a conventional balun (or a transition from microstrip line to a parallel stripline) and shows an impedance bandwidth of 78% for SWR les 2, together with stable and unidirectional radiation patterns along the whole operating band.
Keywords :
antenna radiation patterns; bow-tie antennas; broadband antennas; microstrip antennas; bowtie exciter; cavity-backed bowtie antenna; microstrip line; parallel stripline; unidirectional radiation patterns; wideband operation; Antenna feeds; Antenna measurements; Antenna radiation patterns; Bandwidth; Broadband antennas; Fabrication; Frequency; Geometry; Impedance matching; Microstrip antennas;
Conference_Titel :
Millimeter Waves, 2008. GSMM 2008. Global Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1885-5
Electronic_ISBN :
978-1-4244-1886-2
DOI :
10.1109/GSMM.2008.4534660
