Patent ID: 7535292
Filing Date: 2009-05-19
Classification: H03F,H04B

Abstract:
1. A system for characterizing an amplifier, comprising: a Gaussian signal source for generating a signal in the frequency domain; a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency; an Inverse Fast Fourier Transform device, coupled to an output of the notch filter; a normalization device, coupled to the Inverse Fast Fourier Transform device; an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source; a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.