Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	CAD of Efficient TMmn0 Single-Mode Elliptical Applicators with Coaxial Excitation [PDF]
AUTHORS	Vyacheslav V. Komarov and Vadim V. Yakovlev 2005 40 3 174-185
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Abstract This paper suggests computational and engineering approaches to designing single-mode elliptical applicators for thermal proceeding of cylindrical samples of relatively small diameters. Through a systematic computational experimentation employing a 3D conformal FDTD model, we show that stable and efficient excitation of even and odd TMmn0 modes of elliptical waveguides can be achieved by appropriate placing of two (one active and one passive) coaxial probes extended in the longitudinal direction of the cavity of relatively small height and by choosing the dimensions of the cavity. Effects produced by cylindrical loads inserted in the electric field maxima of the applicators featuring even TM010, TM110, and TM210 modes are studied for materials with different dielectric constant and the loss factor. It is shown that with the proposed excitation supported by simulation of energy coupling and dissipated power the elliptical structure is capable of operating any of these modes in a single-mode regime and generating satisfactory uniformity of the dissipated power.