| 摘要 |
PROBLEM TO BE SOLVED: To eliminate effects on a low-frequency signal processing part by radio waves radiated from a high-frequency signal processing part by separately arranging the arrangement area of the high-frequency signal processing part provided with an antenna in a portable telephone set in a using state and the arrangement area of the low-frequency signal processing part provided with a speaker. SOLUTION: Since inductance components of a lead wire of a capacitor for high-frequency attenuation and a printed board form impedance to high-frequency signals and generate unwanted noise, even though the low-frequency signal processing part 20 does not respond to the high-frequency signals, the high-frequency signal processing part 10 for processing the signals of transmission and reception and the low-frequency signal processing part 20 for processing low-frequency signals are arranged separately. Since the high-frequency signal processing part 10 is connected to the antenna through an antenna-fixing machine screw, it is arranged near a microphone 22 which is near an antenna bottom part. Also, since a wire with the speaker 21 is shortened, the low-frequency signal processing part 20 is arranged adjacent to the speaker 21. |
