VHF-UHF ANTENNA Russian patent published in 2000 - IPC

FIELD: radio engineering. SUBSTANCE: invention can be used as transceiver wide-range omnidirectional antenna. Proposed antenna is mode of three vertical rectangular metal plates 1 installed above metal screen 2. Plates 1 are brought into coincidence and are electrically connected by large edges and their planes form angles of 120 degrees. Upper ends of rectangular metal plates 1 are connected to round metal horizontal plate 3 and lower ends are linked to metal screen 2. Metal screen 2 and metal horizontal plate 3 are electrically connected by means of additional conductors 4. Connection points of additional conductors 4 are positioned on bisectors of angles formed by planes of rectangular metal plates 1. Each rectangular plate 1 has clearance to which edges coaxial feeder 5 is connected. Optimum relations of dimensions of elements of structure with which two-fold enlargement of working range is achieved are determined. EFFECT: expanded range of working frequencies and increased vibration stability. 5 dwg