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An integrated beam-forming network analysis for multibeam antennas based on an array of dielectric slotted waveguides in millimeter waves is proposed. The advantages of such networks include low losses, high aperture efficiencies, and design flexibility in comparison with traditional quasitopical systems. A new technique for obtaining the main characteristics by solving eigenwave and diffraction problem of the basic structure of the proposed network has been developed. [ABSTRACT FROM AUTHOR]

Eigen waves in novel materials which have properties of chiral composites and omega structures are considered. The materials can be modeled by uniaxial bianisotropic constitutive relations. Both chiral and omega composites possess promising features, for and one may expect still more interesting effects in more general media. [ABSTRACT FROM AUTHOR]