Patent ID: 7268530

Claim:
A method comprising the steps of: connecting a first signal generator that generates a first set of spectral components to a broadband microwave receiver whereby the mutual phase relationship of said first set of spectral components is accurately known and whereby said broadband microwave receiver has a phase distortion error; using said broadband microwave receiver to generate a measurement of the mutual phase relationship of said first set of spectral components; connecting a second signal generator that generates a second set of spectral components to said broadband microwave receiver; using said broadband microwave receiver to generate a measurement of the mutual phase relationship of said second set of spectral components; eliminating said phase distortion error of said broadband microwave receiver from said measurement of the mutual phase relationship of said second set of spectral components by using said measurement of the mutual phase relationship of said first set of spectral components and said measurement of the mutual phase relationship of said second set of spectral components and said accurately known mutual phase relationship of said first set of spectral components.