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On the reciprocity of bi‐isotropic media
Author(s) -
Lindell Ismo V.
Publication year - 1992
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.4650050718
Subject(s) - reciprocal , reciprocity (cultural anthropology) , isotropy , simple (philosophy) , coupling (piping) , physics , mathematical analysis , mathematics , quantum electrodynamics , theoretical physics , quantum mechanics , philosophy , engineering , psychology , epistemology , mechanical engineering , social psychology , linguistics
It is well known that the bi‐isotropic medium with four independent parameters is not reciprocal unless one of the parameters, the Tellegen parameter, vanishes. This property is not, however, easily seen from the Green dyadics and the subject has been under some controversy, because for electric or magnetic sources alone the medium appears reciprocal. In the present article it is demonstrated in terms of a simple example that for the nonzero Tellegen parameter the medium is truly nonreciprocal and the effect appears in the cross coupling of electric and magnetic sources. © 1992 John Wiley & Sons, Inc.