Title :
Analysis of broadband microstrip array element for direct broadcast satellite receiver
Author :
Ming, Au Tsien ; Man, Luk Kwai
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
The variation of the size and position of a parasitic element with the input impedance, resonant frequency and bandwidth of a stack rectangular microstrip antenna are investigated theoretically. An integral equation for the unknown patch current densities is formulated in the spectral domain, while Galerkin´s procedure is employed to solve for the solution. 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 :
antenna theory; current density; electric impedance; impedance matching; integral equations; microstrip antennas; microwave antenna arrays; satellite antennas; DBS applications; Galerkin´s procedure; bandwidth; broadband; direct broadcast satellite receiver; impedance matching; input impedance; integral equation; microstrip array element; parasitic element; patch current densities; resonant frequency; spectral domain; stack rectangular microstrip antenna; Bandwidth; Current density; Dielectric substrates; Impedance; Integral equations; Microstrip antenna arrays; Microstrip antennas; Moment methods; Resonant frequency; Satellite broadcasting;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184527
