Title :
Broadband proximity-coupled microstrip antenna
Author :
Gao, S. ; Sambell, A.
Author_Institution :
Sch. of Eng. & Technol., Northumbria Univ., Newcastle upon Tyne, UK
Abstract :
A simple broadband proximity-coupled microstrip antenna is presented. A circular patch is used as the main radiator, and an H-shaped slot is cut in the ground plane. A stepped-width microstrip line is used to feed the patch through proximity coupling. The prototype antenna achieves an impedance bandwidth of 26%. Low crosspolar levels below -20 dB are observed in both E- and H-planes. The antenna is simple in structure and easy to fabricate.
Keywords :
antenna radiation patterns; broadband antennas; coupled circuits; microstrip antennas; slot antennas; 5.12 to 6.65 GHz; broadband antenna; broadside radiation patterns; circular patch main radiator; cross-polar levels; ground plane H-shaped slot; impedance bandwidth; microstrip antenna; proximity-coupled antenna; stepped-width microstrip line feed; Bandwidth; Broadband antennas; Circuits; Fabrication; Feeds; Impedance matching; Microstrip antennas; Permittivity; Prototypes; Resonance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1329781
