ANTENNA

摘要

[PROBLEMS] To provide a wide band type antenna having nondirectivity without directivity in the horizontal plane direction and capable of receiving wide band radio, particularly, wide band signals over several GHz. [MEANS FOR SOLVING PROBLEMS] A brass spherical shell antenna element (11) of, for example, 10 mm in diameter is fitted to a brass rod (12) of 2.5 mm in diameter through the upper and lower through-holes (21) thereof in a skewered state. The rod (12) is vertically installed by a nylon resin insulation bush (23) fitted to the center part of a disk-like conductive circular plate (13). A coaxial cable (15) is connected to a connector sleeve (14) formed on the lower surface of the conductive circular plate (13) through a connector (16) so that the rod (12) can be connected to a core and the conductive circular plate (13) can be connected to a shield cable.