WIDEBAND ANTENNA ARRAY

摘要

The invention relates to radioelectronics and solves the problem of widening the antenna array bandwidth to several decades, i.e. of obtaining a super-wideband antenna for wireless transmission and reception. This is achieved with the following arrangement: in a wideband linear antenna array comprising a dielectric base with metallised layers on which is formed an excitation system and an emitting aperture whose inner region takes the form of an assembly of an even number of first-level emitter elements each of which is formed by the intersection of two zero-level emitter elements in such a way that their outer walls are the outer walls of the first level emitter elements, while the intersection between contiguous walls forms a metallised section, the point of intersection of contiguous walls of zero-level emitter elements lies on the axis of symmetry of a first-level emitter element at a distance greater than half the wavelength from each of the outer walls of that emitter element on a line perpendicular to the axis of symmetry. Each successive pair of adjacent emitter elements with the intersections of its inner walls forms a higher-level emitter element which is non-homogeneous in the inner region and has an aperture size not less than double that of the preceding emitter element. The aperture sizes go on doubling until an emitter aperture is obtained with the desired beam pattern.