| 摘要 |
<p>PURPOSE:To reduce a high frequency loss attended with the connection between a power amplifier and a portable telephone set of the cellular telephone set. CONSTITUTION:A portable telephone set 7 and a portable set antenna 6 are used to form a portable cellular telephone set. Moreover, an onvehicle cellular telephone set is consisted of an on-vehicle antenna 1, an antenna cable 2, a power amplifier 3, a curl cord 4, a connection unit 5, and the portable telephone set 7. The cellular telephone set is featured in the use of the in the on-vehicle mode, and the power amplifier 3 uses a reception wave mixer 304 to convert a received signal from a base station in the cellular telephone system into an intermediate frequency signal S6, and it is sent through a coaxial cable 43 and the connection unit 5 in the curl cord 4 to a demodulation section 84 of the portable telephone set 7.</p> |
