| 摘要 |
A signal processing unit for minimizing the signal interference between neighboring frequency bands and improving the sensitivity of reception/transmission is provided to improve the voice quality of a communications terminal and to improve the GPS receiving rate of the communications terminal. A signal processing unit(100) comprises a switching unit(103) connected to an antenna(101). A first signal separator part(105), a second signal separator part(107), and a third signal filter part(109) are connected to the switching unit. A power adjustment part(111) is connected with the third signal filter part(109). The switching unit is an SP3T(Single Pole three Throw) switch. A first signal power amplification part(141) is arranged between the first signal separating part and transmission signal processing part(130).
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