Patent ID: 7720137
Filing Date: 2010-05-18
Classification: G01R

Abstract:
1. A method of characterizing a frequency response for a frequency translation device having a specified wide bandwidth comprising: applying a stimulus signal at an input of the frequency translation device, the stimulus signal having a center frequency and covering a plurality of offset frequencies that define the specified wide bandwidth spanning the center frequency; measuring the stimulus signal and an output from the frequency translation device in response to the stimulus signal to generate a frequency response for storage as calibration data for the frequency translation device at the center frequency, the frequency response being a complex function of magnitude and phase over the specified wide bandwidth; repeating the applying and measuring steps for each of a plurality of center frequencies spanning a desired frequency range to generate a plurality of frequency responses, one for each center frequency; and conditioning each frequency response with respect to a reference center frequency prior to storage as the calibration data, wherein the conditioning comprises each frequency response is scaled and normalized relative to said reference center frequency.