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Detecting the presence of 180° phase discrepancies in transmission‐coefficient measurements of lossless multiport rectangular‐waveguide components
Author(s) -
Yeo S. P.,
Cheng M.,
Bannister D. J.,
Ide J. P.
Publication year - 1995
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/mop.4650090512
Subject(s) - lossless compression , transmission coefficient , transmission (telecommunications) , waveguide , phase (matter) , function (biology) , mathematics , mathematical analysis , electronic engineering , optics , physics , computer science , algorithm , engineering , telecommunications , quantum mechanics , data compression , evolutionary biology , biology
It has recently been observed that the improper choice of relative adaptor orientations may give rise to 180° phase discrepancies in the transmission‐coefficient measurements obtained by automatic network analyzers for multiport rectangular‐waveguide components. Two test procedures for detecting the presence of such discrepancies—based either on principal subdeterminants or on maximum singular value—are described in the present article. Test results indicate that the latter of the two procedures is to be preferred, because the former may in certain instances fail to function satisfactorily. © 1995 John Wiley & Sons, Inc.