WIDEBAND OMNIDIRECTIONAL PRINTED DIPOLE ANTENNA WITH COUPLING FEED FOR WIRELESS COMMUNICATION APPLICATIONS

Zhi-Ya Zhang, Cheng-Bin Zhang
2013 Progress In Electromagnetics Research C  
The wideband and omnidirectional performance of a printed dipole antenna with a novel coupling feed structure is presented. Besides using printed dipole for omnidirectional radiation patterns, the coupling feed structure, which includes the transmission line coupling to a slot line to effectively improve the impedance matching, can be used for bandwidth enhancement. A wideband impedance characteristic of about 45.6% for VSWR ≤ 2 ranging from 1.54 to 2.45 GHz is obtained. The omnidirectional
more » ... ation patterns in the whole operation bands are achieved which the un-roundness in H-plane is less than 1.6 dB. It is sufficient for accommodating recent wireless communication services such as DCS1800, PCS1900, UMTS, IMT2000, Wibro, etc. Furthermore, the proposed antenna should be a good candidate as a unit of the omnidirectional array. A prototype has been fabricated and tested, and the experimental results validate the design procedure.
doi:10.2528/pierc13012010 fatcat:d73ntsle6nc6zofgfm4qmhbwiq