Title :
Accurate prediction of finite waveguide array performance based on infinite array theory
Author :
Chan, K.K. ; Chadwick, K.
Author_Institution :
Chan Technol. Inc., Kirkland, Que., Canada
Abstract :
The S-matrix of a finite waveguide array is constructed using the element coupling coefficients obtained from an infinite array model. This S-matrix is modified when an external ground plane is present or when feed modules are attached to the array elements. Given the port inputs, the final waveguide aperture excitations, which include the effects of mutual coupling, can be calculated using the modified S-matrix. Using the known isolated element pattern, the finite array pattern can also be computed
Keywords :
S-matrix theory; antenna feeds; antenna radiation patterns; waveguide antenna arrays; element coupling coefficients; external ground plane; feed modules; finite array pattern; finite waveguide array performance; infinite array model; infinite array theory; isolated element pattern; modified S-matrix; mutual coupling; port inputs; waveguide aperture excitations; Apertures; Feeds; Impedance matching; Integral equations; Monte Carlo methods; Mutual coupling; Phased arrays; Transmission line matrix methods; Waveguide discontinuities; Waveguide theory;
Conference_Titel :
Phased Array Systems and Technology, 1996., IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-3232-6
DOI :
10.1109/PAST.1996.566072
