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Second‐rank tensors for quasi‐1D periodical electromagnetic structures described by magnetic‐line groups

A method for calculation of the second rank constitutive tensors for symmetrical magnetic quasi‐1D structures in the long‐wavelength approximation is discussed. These structures are, for example, polymers, nanotubes, multilayer films. The method is based on the group theory. Line magnetic groups are used to find the possible forms of the tensors. Examples of the calculated tensors for some groups are presented. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 152–155, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11154