Symmetric-pair antennas for beam steering direction finding or isotropic-reception gain

A novel type of phased array is described which seems particularly attractive in direction finding and adaptive beam steering applications, and allows considerable simplification in the necessary signal processing. A variant of the technique also permits gain with isotropic coverage for reception. The principles of the techniques are outlined, along with a discussion of several possible array configurations for use with direction finding, communications and spectrum monitoring. Experimental results are presented to confirm the predicted behaviour of the array