MUTUAL COUPLING IN FINITE-LENGTH THIN WIRE CHIROSTRIP ANTENNAS

Here, we theoretically analyze the mutual coupling between two finite- length thin wire chirostrip antennas. These antennas are defined as th in wires printed on grounded substrate made of chiral materials which exhibit electromagnetic handedness. Chiral materials are circular pola rization (CP) birefringent and are described by the constitutive relat ions D = epsilon(c)E + ixi(c)B and H = ixi(c) + B/mu(c) with epsilon(c ), mu(c), and xi(c) as material parameters. Mutual coupling for broads ide, collinear, and echelon configurations for these antennas is inves tigated, and it is shown that introducing chirality in the substrate c an, under certain circumstances, modify the mutual coupling between th e chirostrip antennas. (C) 1993 John Wiley & Sons, Inc.