| 摘要 |
PURPOSE: An antenna apparatus of a portable radio phone is provided to reduce an electromagnetic wave and improve communication quality. CONSTITUTION: Stoppers(6,7) are installed on an inner end and an outer end of an antenna(3). A guide(2) is installed on an antenna connection part(1) of a telephone body to support spread operation of an antenna. The guide(2) permits a screw coupled body(2a) on the inner end to be coupled to a nut(1a) within a phone, so as to be assembled . An outside support part(4) of the antenna(3) is supported by the guide(2) before the antenna is spread. When the antenna(3) is spread, an antenna inside support part(5) is supported by the guide(2). The antenna connection part(1) is arranged on a sound source adjacent area, in other words, an area where a microphone is approached to a communication source based on a communicated condition. A microphone is installed on an external end of the antenna. Microphone lead lines are drawn in the inner end of the antenna. The microphone lead lines are connected to an audio circuit of a PCB. When a communication is carried out, the microphone is in the center of the sound source or a microphone antenna(MA) is adjacent to the sound source.
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