Patent ID: 8838057
Filing Date: 2014-09-16
Classification: H03D

Abstract:
1. A radio frequency (RF) mixer for transforming a frequency of an RF input signal, the RF mixer comprising: a first switching stage having a first plurality of switches configured to sample the RF input signal to produce a sampled RF signal in response to a first plurality of switching signals; and a second switching stage having a second plurality of switches connected in parallel, the second plurality of switches being configured to receive the sampled RF signal and produce a plurality of frequency translated output signals in response to a second plurality of switching signals; wherein each of the second plurality of switching signals is a phase-shifted version of a local oscillator (LO) signal having a LO frequency, the LO frequency being substantially equal to a frequency of the RF signal, wherein the first plurality of switching signals have a frequency N times higher than the LO frequency, N being an integer greater than unity.