US Patent 7203475 Multiple rate local oscillation generator and applications thereof

A local oscillation generator includes a clock circuit, a first divide module, a first mixing module, a second divide module, and a second mixing module. The clock circuit is operably coupled to generate a first clock signal. The first divide module is operably coupled to divide rate of the first clock signal by a first factor to produce a second clock signal. The first mixing module is operably coupled to mix the first clock signal and the second clock signal to produce a first local oscillation. The second divide module is operably coupled to divide rate of the second clock signal by a second factor to produce a third clock signal. The second mixing module is operably coupled to mix the first clock signal and the third clock signal to produce a second local oscillation.