Coaxial antenna with an expanded working band

摘要

A utility model refers to an antenna technique, and can be used as a transceiver antenna of a meter and decimeter range. The radiating antenna pin is thickened by sealing the braid of the cable running over the radiating pin to the central core at the sheath of the braid, at a distance of about 0.25 λ_Wed from the end of the antenna. The locking circuit is made by winding six turns of cable on a ferrite rod at a distance of about 0.25 λ_Wed from the place of connecting the braid to the central core of the cable. The antenna is matched with a 50-ohm supply line using a matching device consisting of a capacitor located at a distance 1 0.25 λ_Wed from the locking device, and connected in series to the central core of the coaxial cable. The technical result consists in providing antenna operation in the frequency band above 20% of the center frequency with a standing wave ratio of not more than 2, in matching the antenna with a signal source with a wave impedance of 50 Ω and in the design flexibility. 5 z.p. 4-yl, 4 yl.