Title :
Offset dual-patch microstrip antenna
Author :
Luk, Kwai Man ; Tong, Kin Fai
Author_Institution :
Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong
Abstract :
The characteristics of aperture-coupled dual-patch rectangular microstrip antennas with an air gap between the substrates supporting the two patches are studied experimentally. It is demonstrated that further improvement in input SWR bandwidth can be obtained by offsetting, or allowing a horizontal displacement for, the upper patch with respect to the lower patch. Measurements on gain and radiation patterns are also presented.
Keywords :
antenna radiation patterns; microstrip antennas; air gap; aperture-coupled; dual-patch; gain; horizontal displacement; input SWR bandwidth; microstrip antenna; microwave antennas; offset dual patch; radiation patterns; rectangular type;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931089
