WHIP AND HELICAL INTEGRAL ANTENNA BY CAPACITANCE COMBINATION

摘要

PURPOSE: A whip and helical integral antenna by a capacitance combination is provided to simply carry by inserting an antenna and receiving a signal by 1/4 wavelength helical. CONSTITUTION: A spiral helical(31) is formed at a predetermined dielectric. A metal sleeve(32) feeds a power to an antenna. A dielectric(38) is located between the helical(31) and sleeve(32) and serves to perform a capacitance combination. A cover(34) wraps an assembly obtained by combining the helical(31) with the dielectric(38) and sleeve(32). A whip(33) is inserted into an inside of the sleeve(32). A metal stopper(36) is combined with other end of whip. A tube(35) is located between the sleeve(32) and metal stopper(36) and wraps an outside of the whip(33). The sleeve(32) and metal stopper(36) are fixed to a fixture. The whip(33) passes through an inside of a fixture and moves in a longitudinal direction. A screw is formed at an outer peripheral surface of the fixture.