Aerial radiator with base element as ground surface - has elliptical conductive patch element at selected spacing from base element for resistance matching

摘要

The aerial radiator has a base element (1) serving as a ground surface arranged at a distance (H) from a patch element (5), forming a conductive surface. Between the base and patch element a low-loss dielectric is fitted. The radiator has a coaxial feed line (2), whose outer conductor (3) is coupled to the base element, while the inner conductor (4) is linked to the patch element. The latter is in the form of an ellipse, and the spacing between the two elements is so selected that a resistance matching takes place between the two elements and the feed line. Pref. air is used as the dielectric. The patch element may be hexagonal of two mirror-identical trapezoidal surfaces. USE/ADVANTAGE - For aerial radiators of patch type, with great band width and identical radiation widths in the E and H plane.