Title :
A novel uni-directional, off-axis CPW-fed, matched by unbalanced fork-stub, UWB ring slot antenna printed on single layer PCB with back plane
Author :
Tran, Dani P. ; Tanyer-Tigrek, F. Muge ; Lager, Ioan E. ; Ligthart, Leonardus P.
Author_Institution :
Int. Res. Centre for Telecommun. & Radar, Delft Univ. of Technol., Delft
Abstract :
A rectangular ring slot antenna printed on a single layer substrate capable of providing: uni-omni directional radiation pattern (UODR), linear phase characteristic (LPC), matched impedance bandwidth (IBW) over 58% at -20 dB (VSWR<1.2) is presented. Optimized performances are obtained by using an unusual way of feeding, matching and tuning; the antenna is off-axis fed by CPW structure, matched and tuned by an asymmetric-and-unbalanced fork-stub element.
Keywords :
antenna feeds; antenna radiation patterns; coplanar waveguides; linear antennas; printed circuits; slot antennas; UWB ring slot antenna; asymmetric fork-stub element; back plane; linear phase characteristic; matched impedance bandwidth; off-axis CPW-fed; rectangular antenna; single layer PCB; unbalanced fork-stub; uni-omni directional radiation pattern; Antenna feeds; Antenna radiation patterns; Bandwidth; Coplanar waveguides; Directive antennas; Impedance; Linear predictive coding; Pattern matching; Slot antennas; Ultra wideband antennas; CPW-fed; UWB ring slot antenna; X-band; asymmetric feeding; unbalanced stub-tuning; uni-omni directional radiation pattern;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619179
