Mode chart of electrically thin parallel-plate circular resonators
Journal article, 2001

Modes in electrically thin circular parallel-plate resonators are discussed in detail. It is shown that the widely used mode indices (found from the field solutions) do not indicate the radial numbers of the field maximums in a straightforward manner. The diameter of the disc, not the radius, accommodates integer numbers of the field maximums (antinodes). These diametrical numbers are expressed in terms of radial mode indices. Emphasis is placed on the first axially symmetric mode TM020, which was incorrectly regarded as TM010 in the past. Some applications of the mode chart, including interpretation of experimental observations, are also discussed. Comparison is made with microstrip and annular resonators.

dielectric resonators

modal analysis


Anders Eriksson

Department of Microelectronics

Peter Linner

Department of Microelectronics and Nanoscience

Spartak Gevorgian

Department of Microelectronics and Nanoscience

IEE Proceedings: Microwaves, Antennas and Propagation

1350-2417 (ISSN) 1359-706X (eISSN)

Vol. 148 1 51 - 55

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering



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