Comments, with reply, on 'Accuracy improvements in microwave noise parameter measurements' by A.C. Davidson et al

摘要

The commenter disagrees with the description by A.C. Davidson et al. (ibid., vol.37, p.1973-8, Dec. 1989) of the contents of an earlier article by the commenter about the necessity of only one measurement of noise figure together with several cold noise power measurements. In replying, Davidson et al. explain that the commenter's earlier article described a solution for a special case of Y/sub 1/=Y/sub 2/ and T/sub 1/ not=T/sub c/, the author's method of determining noise parameters represents a general solution.