A mode-matching model for an electromagnetically coupled coaxial dipole array antenna is presented. The Fourier transfor m/series technique is used to represent the continuous and discrete modes of scattered fields. The mode-matching is utilized to constitute a set of simultaneous equations for discrete modal coefficients. Numerical computation is performed to show its radiation behavior in terms of various antenna parameters.

Wave propagation along shielded offset striplines is investigated. The mode-matching method is applied to obtain TE and TM mode dispersion relations in simple series form. Computations are performed to illustrate field propagation characteristics for various offset stripline geometries.