Title :
Effect of parasitic element on the characteristics of microstrip antenna
Author :
Au, Tsien Ming ; Luk, Kwai Man
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
fDate :
8/1/1991 12:00:00 AM
Abstract :
The variations in the sizes and position of a parasitic element with the input impedance and bandwidth of a rectangular microstrip antenna are investigated by the method of moments. An integral equation for the unknown patch current densities is formulated in the spectral domain. The Galerkin procedure is employed to solve for the unknowns. It is found that the input impedance varies significantly with the size and position of the parasitic patch. The result is important for bandwidth enhancement and impedance matching of the microstrip antenna
Keywords :
electric impedance; impedance matching; microstrip antennas; Galerkin procedure; bandwidth; impedance matching; input impedance; integral equation; method of moments; microstrip antenna; parasitic element; rectangular patch; spectral domain; Admittance; Antenna theory; Antennas and propagation; Bandwidth; Dipole antennas; Electromagnetic scattering; Feeds; Impedance; Microstrip antennas; Solids;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
