A.S. Godin, V.V. Perfilyev, K.N. Klimov

Diskcone antennas [1] are widely used for communication systems for various purposes: civilian and service. At present, there are many diskcone antennas. However, existing systems are already used diskcone antennas, so the chief designers of these systems put the problem to increase the operating frequency range of existing products on the same antenna system [2]. Diskcone antennas are vertically polarized radiators with horizontal omnidirectional, in many respects similar to the diagram of vertical vibration [1]. The main advantage of diskcone antenna is a large bandwidth, within which it can be powered via a coaxial cable with ap-propriate symmetry, and impedance. It is relatively simple in structure and is insensitive to deviations from the nominal size. Therefore, such antennas are widely used in commercial broadcasting, mainly in the decimeter and meter waves. Diskcone antenna consists of a metal cone with a disk on top. It belongs to the antennas to the top of nutrition which are equipped with limit capacity of a disk and a cone-shaped outer conductor. In its original form diskcone antennas are used only in the decimeter range. In the short-wave bands are used primarily "skeletal" forms when the metal surfaces are replaced with pieces of metal rods, strips, tubes, or wires (Fig. 1). This provides a significant reduction in weight and wind resistance of the antenna, as well as the cost of its construction without significant damage to the electrical properties. In the antennae of industrial production on the disc and the cone is at least six, often eight, and in special cases and twelve rods. There are variants of a thin wire or wire mesh, and mixed forms of the continuous drive rods and cones.