| 摘要 |
There is disclosed a phase shifter using a polyphase filter, which achieves a broad band, suppresses errors in both amplitude and phase, and achieves low power consumption. A driving section includes a voltage-to-current conversion circuit for converting a voltage value of an input signal Si into a current value, and outputting an input current signal Ci. An RC polyphase filter 2 outputs a corresponding polyphase phase-shifted current signal Co according to supplying of the input current signal Ci. A load circuit 3 includes a polyphase current-to-voltage conversion circuit for converting a current value of the polyphase phase-shifted current signal Co into a voltage value, and outputting an output signal Vo.
|
