| 摘要 |
FIELD: antenna equipment, applicable in radio-engineering systems of various purpose as a wide-band small-sized independent antenna, or as a wide-band radiator of composite antenna systems. ^ SUBSTANCE: the wide-band untuned directional antenna has a flat reflecting screen and a metal staggered radiating cloth, filled by two metal sectors with feed points in their tops and with cutouts in the form of a part of segments formed by arcs of radius R=0.18lambdamax and by chords passing at distance l=0.15lambdamax from the feed points, and the side surfaces of one metal sector are connected to the mirror ones, relative to them by the side surfaces of the other metal resistance sector R=(100-200)Ohms in the points positioned at distance l=0.15lambdamax from the feed points, installed coaxially before the metal staggered radiating cloth at a distance d=(0.2-0.3)lambdamax from it is a dielectric sphere with diameter D1=(0.45-0.5)lambdamax with dielectric permeability epsilon=(2-3)lambdamax, where lambdamax - the maximum wavelength. ^ EFFECT: stabilized width of the directional pattern in the service frequency band. ^ 3 dwg |
