| 摘要 |
PURPOSE:To receive an antenna element part in the inside of a receiving part, to lengthen the distance between the antenna element part and a radio set and to reduce an influence to directional characteristics by a human body by screwing the antenna element in the upper edge of an impedance matching part and connecting a coaxial cable in a lower edge. CONSTITUTION:When an antenna 1 is constructed, at first, a screw part 3a of an antenna element part 3 is screwed in a tapped whole 2a of a matching part 2 and a screw part 2b of the matching part 2 is inserted and arranged to an installing part 4b of a receiving part 4 so that a connector 5a and a cable 5 for connecting can project to an outside from a channel 4e of the receiving part 4. Thus, the element part 3, the matching part 2 and the receiving part 4 are combined and connected to the output terminal of a radio set arranged and provided in a position separating from the connector part 5a. When the antenna 1 is not used, the element part 3 is inserted in the receiving part 4, the matching part 2 is inserted from the tip of the cable 5 to the receiving part 4, the screw part 2b of the matching part 2 is spirally fixed in a screw part 4d of the installing part 4b, and a receiving condition is obtained.
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