Analysis of small arrays above ground planes of finite extent

An approach to the analysis of small finite arrays above a finite ground plane is presented. The approach shows potential for application to complex antenna elements where account of the ground plane truncation must be taken. The analysis has practical application in the development of small arrays for use in wireless local area networks or personal communication systems, where the need for compact housings precludes the use of extensive ground planes. For radiation in the forward half-space, the analysis may also be useful for predicting the performance of arrays mounted on metal boxes, for example arrays on PC cases.