| CPC H04B 17/3912 (2015.01) [H04B 17/0087 (2013.01); H04W 52/365 (2013.01)] | 20 Claims |
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1. A method of simulating spurious power of a radio frequency (RF) mixer, the method comprising:
mixing an input signal and a local oscillator (LO) signal at an RF mixer and measuring a mixed output signal, wherein the input signal has a characterization RF frequency and a characterization RF power and the LO signal has a characterization LO frequency and a characterization LO power;
determining a plurality of spurious peak powers of the mixed output signal by identifying peak powers that exceed a predetermined measurement threshold;
determining a plurality of spurious frequencies corresponding to the plurality of spurious peak powers of the mixed output signal, respectively, based on the plurality of spurious peak powers;
determining equations defining the plurality of spurious frequencies of the mixed output signal in terms of the characterization RF frequency and the characterization LO frequency at the corresponding plurality of spurious peak powers, respectively,
wherein determining the equations comprises determining RF frequency coefficients indicating multiples of the characterization RF frequency and LO frequency coefficients indicating multiples of the characterization LO frequency at the corresponding plurality of spurious frequencies, respectively; and
after determining the equations, simulating mixing of a simulated input signal and a simulated LO signal to output a simulated mixed output signal from an RF mixer model corresponding to the RF mixer, wherein the simulated input signal has a simulated RF frequency and a simulated RF power and the simulated LO signal has a simulated LO frequency and a simulated LO power,
wherein simulating the mixing of the simulated input signal and the simulated LO signal comprises applying the equations to the simulated RF frequency and the simulated LO frequency to determine a plurality of simulated spurious frequencies, a plurality of simulated spurious peak powers corresponding to the plurality of simulated spurious frequencies, and a plurality of simulated spurious phases corresponding to the plurality of simulated spurious frequencies of the simulated mixed output signal.
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