Numerical Analysis of Cylindrical Cavities Used for Microwave Heating, Employing the Mode Matching Technique

Abstract

The analysis and design of a cylindrical cavity for microwave heating applications, including the feeding mechanism is proposed in this paper. The cylindrical cavity design aims at the production of a uniform field distribution, avoiding non-uniform heating and thermal runaway. The analysis of the device is based on the Mode Matching Technique. This has been proved to be an efficient and robust technique for the analysis of multiple discontinuities. The feeding structures maybe a circular, rectangular or coaxial waveguide. All quantities involved in the analysis are evaluated analytically achieving a fast and accurate method.

Diffraction of Hybrid Modes in a Cylindrical Cavity Resonator by a Transverse Circular Slot With a Plane Anisotropic Dielectric Layer

“…For its solution we can use the partial regions (mode matching) method [4,12,[19][20][21]. There are another methods for modeling of microwave slotted systems (see, for example, [10,11,22]), but it is very close to the standard method of the rigorous diffraction theory [17,23].…”