Title :
Multiport network approach for modeling the mutual coupling effects in microstrip patch antennas and arrays
Author :
Benalla, Abdelaziz ; Gupta, Kuldip C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
A method is described for representing the mutual coupling between edges of a microstrip patch (or the edges of two different patches in an array) in form of a mutual admittance matrix. Coefficients of the mutual admittance matrix are evaluated by modelling the edge fields by equivalent magnetic current line sources. The formulation is an extension of the multiport network modeling of microstrip patches and the segmentation method of analysis. Results are found to be in good agreement with the measured data on mutual coupling available in the literature. Relative contributions of various edges of rectangular patches to the mutual coupling are discussed.<>
Keywords :
antenna theory; electric admittance; microstrip antennas; microwave antenna arrays; antenna arrays; edge fields; equivalent magnetic current line sources; microstrip patch antennas; multiport network modeling; mutual admittance matrix; mutual coupling; rectangular patches; segmentation method; Admittance; Antenna measurements; Intelligent networks; Magnetic analysis; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Patch antennas; Transmission line matrix methods; Transmission line measurements;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
