| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multiband transceiver that can reduce the number of required local oscillators with a small size, reduce the weight, and reduce low power consumption at a low cost. SOLUTION: The multiband transceiver is provided with a 1st frequency divider means that receives an output of a 1st local oscillator, a 2nd frequency divider means that receives the output of a 2nd local oscillator, a down- converter that receives the reception signal with a wireless frequency and outputs a received intermediate frequency signal, an up-converter that receives the transmission intermediate frequency signal and outputs a transmission signal of radio frequency, and a switch that selects a local oscillation input terminal for the down-converter or a local oscillator signal input terminal for the up- converter and gives outputs from the 1st and 2nd frequency divider means to the selected input terminal.</p> |
