HELICAL HF ANTENNA Russian patent published in 2013 - IPC H01Q11/08 H01Q21/00 

FIELD: radio engineering, communication.

SUBSTANCE: helical HF antenna is in form of a quadruple equiangular spiral, has four insulated antenna conductors, four resistive loads, a support mast with tension cables and mast anchors, a metal housing holding a power supply unit for the antenna with high-voltage sockets for connecting feeders and antenna inputs which are connected to top ends of the antenna conductors, four dielectric tension cables having locking members for fastening the antenna conductors; the support mast is telescopic; between the metal housing and the support mast there is a mounting unit; the metal housing has a hole in which the top part of the mounting unit and a bar which fixes the mutual position of the housing and the mounting unit enter; the bottom part of the mounting unit is movably mated with the top link of the mast; the middle part is in form of a top disc and a bottom disc; the bottom disc has four holes through which a latch hook with a latch enters, said latch hook fastened to the top end of each of the dielectric tension cables, and at the other end of each of the tension cables there is a tension device which is mechanically connected to the anchor of the tension cables; near the anchors on the ground surface, there are four counterweights, each formed by a group of cables which are galvanically connected to each other, and each of the resistive loads is connected between the counterweight and the bottom end of the antenna conductor.

EFFECT: easier mounting of the antenna.

2 cl, 4 dwg