A circuit model for antenna array mutual coupling effects

A finite antenna array of N-dipoles is considered. A circuit model is developed to represent the input admittance of an antenna array with finite elements. It consists of a component to represent the input admittance of an isolated antenna element and infinite shunt components to represent different degrees of antenna mutual coupling effects. This model is shown not only to be numerically efficient compared to the moment method analysis, but also to give a physical insight into the antenna array mutual coupling mechanism.