Local oscillator signal generation circuit and generation method and wireless communication system

Abstract

The present disclosure provides a local oscillator signal generation circuit and generation method and a wireless communication system. The local oscillator signal generation circuit includes an oscillator configured to generate a differential clock signal with a duty cycle of 50%; and a frequency divider connected to an output end of the oscillator and configured to perform half-integer frequency division on the differential clock signal and use a signal after the half-integer frequency division as a local oscillator signal. The present disclosure performs the half-integer frequency division on the clock signal output by the oscillator, and uses the signal as the local oscillator signal to participate in mixing, so that the frequency of the oscillator can avoid the frequency of the high-power device, thereby reducing frequency pulling of the clock signal output by the oscillator and reducing noise.

Dependencies are inferred from the claim text.