The compatible effects of gyrotropy and chirality in biaxially bianisotropic chiral- and chiroferrite-ferrite microstrip line structures

In this paper, both gyrotropy and chirality are introduced in some composit e bianisotropic chiral- and chiroferrite-ferrite microstrip line structures . The: propagation characteristics are investigated using the generalized e xponential technique in the spectral domain combined with the Galerkin's me thod. These microstrip structures include shielded single, edge-coupled, br oadside coupled, and bilateral edge-coupled geometries. Numerical calculati ons are performed so as to examine the compatible effects of changing diffe rent variables associated with the operating frequency, gyrotropy and chira lity parameters on the dominant mode propagation constant or the differenti al phase shifter of forward and backward waves, respectively. It is shown t hat the influences of chirality are just diverse, and it could be exploited as a new freedom to adjust the differential phase in chiral- and chiroferr ite-ferrite microstrip lines. Such compatible properties are useful for the design of new planar microstrip integrated devices. Copyright (C) 1999 Joh n Wiley & Sons, Ltd.