Title :
A wide-band single-layer patch antenna
Author_Institution :
Cushcraft Corp., Manchester, NH, USA
Abstract :
The typical single layer patch printed on a dielectric substrate is a narrow band element. This well-known fact is mainly due to the limitations imposed by the dielectric substrate. From efficiency and cost considerations, in most of the cases, the substrate cannot be too thick. In order to increase the microstrip element bandwidth, additional resonators, in different configurations and combinations, can be used: parasitic elements, slots, etc. In this paper, a wide-band single-layer patch antenna is presented. The patch is suspended over the ground-plane and supported by a non-conductive pin. It is fed by a three-dimensional transition connecting the patch to a perpendicular connector. The typical bandwidth of this element (in terms of VSWR) is 90%. When built on a large ground-plane, the front-to-back of this element is better than 25 dB across the band.
Keywords :
UHF antennas; antenna accessories; antenna radiation patterns; microstrip antennas; 2.54 to 4.7 GHz; dielectric substrate; ground-plan; microstrip element bandwidth; nonconductive pin; perpendicular connector; resonators; three-dimensional transition; wide-band single-layer patch antenna; Bandwidth; Broadband antennas; Connectors; Costs; Dielectric substrates; Joining processes; Microstrip resonators; Narrowband; Patch antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.702144
