MARGINAL NONRECIPROCITY IN LINEAR BI-ISOTROPIC MEDIA

We examine die implications for Tellegen behavior of the classical ele ctromagnetic fields by providing a derivation showing that nonreciproc ity is not to be expected in ordinary chiral-like or bi-isotropic medi a. Nonreciprocal behavior will only be attained by combining the basic ally reciprocal chiral or bi-isotropic materials with known nonrecipro cating media. (C) 1998 John Wiley & Sons, Inc.