| 摘要 |
PURPOSE: A local buffer amplifying device of a dual band terminal is provided to switch/amplify determined oscillating frequencies generated from the first and the second oscillator, and to transmit the oscillating frequencies by band matching. CONSTITUTION: A controller controls a band selection. The first and the second oscillator(101,107) output determined oscillating frequencies. A switch(103) switches the determined oscillating frequencies according to a band selection signal inputted from the controller. An amplifier(104) amplifies the determined oscillating frequencies. A band matching unit(105) performs a band matching for the determined oscillating frequencies in order to have similar gains in each different band according to the band selection signal, and transmits the oscillating frequencies to a transmission chip.
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