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Reliability of test procedures for detecting the presence of 180° phase discrepancies when measuring transmission coefficients of lossless multiport rectangular‐waveguide components
Author(s) -
Yeo S. P.,
Cheng M.,
Eng S. G.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(20000120)24:2<91::aid-mop4>3.0.co;2-m
Subject(s) - reliability (semiconductor) , lossless compression , transmission (telecommunications) , phase (matter) , principal (computer security) , simple (philosophy) , microwave , waveguide , engineering , mathematics , algorithm , electronic engineering , reliability engineering , computer science , optics , electrical engineering , physics , telecommunications , power (physics) , quantum mechanics , data compression , philosophy , epistemology , operating system
Two test procedures (based either on principal minors or on singular values) have previously been proposed for detecting the presence of any 180° phase discrepancies in the transmission‐coefficient measurements obtained by automatic network analyzers for multiport rectangular‐waveguide components. The additional studies conducted in the present paper have confirmed that the test procedure based on principal minors tends to yield low reliability, and is thus not suitable for general application. Yet another test procedure (based on determinant magnitudes) has been proposed as well; not only is it simple to implement and use, but it has also been found to be more reliable than the test procedure based on singular values. ©2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 91–93, 2000.