Title :
Characteristics of aperture coupled microstrip antennas with various radiating patches and coupling apertures
Author :
Yang, Xian Hua ; Shafai, Lotfollah
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
fDate :
1/1/1995 12:00:00 AM
Abstract :
A full wave moment method is applied to the analysis of aperture coupled microstrip antennas, in which all components of the electric and equivalent magnetic surface currents are considered. The electric current distributions on the rectangular patch for different coupling aperture positions are presented with their radiation patterns. The effects of the coupling aperture shape and size on the input impedance and radiation performance are also discussed. As an example of new radiators, slotted patches are studied, and it is shown that they can be used to achieve dual-frequency operation
Keywords :
antenna radiation patterns; aperture antennas; current distribution; electric impedance; microstrip antennas; aperture coupled microstrip antennas; coupling aperture positions; coupling aperture shape; coupling apertures; dual-frequency operation; electric current distribution; equivalent magnetic surface currents; full wave moment method; input impedance; radiating patches; radiation patterns; radiation performance; rectangular patch; slotted patches; Antenna accessories; Aperture antennas; Aperture coupled antennas; Couplings; Current; Magnetic analysis; Microstrip antennas; Microstrip components; Moment methods; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
