Circular Dual-Polarised Wideband Arrays for Direction Finding

This paper outlines the development of a new circular array of dual-polarised Fractalled Exponential Flare antennas for use as a wideband direction-finding (DF) array. The prototype array had a number of limitations which lead to the development of some novel array concepts to overcome these problems. These concepts include a high frequency inward-facing array and a dual-polarised array that uses half the number of elements of the original prototype to achieve the same or better performance.