Analysis of partially open cavity resonators using complex eigenmodes

A. Jöstingmeier

doi:10.1117/12.2298135

14 December 1992 Analysis of partially open cavity resonators using complex eigenmodes

A. Jöstingmeier

Proceedings Volume 1929, 17th International Conference on Infrared and Millimeter Waves; 19290I (1992) https://doi.org/10.1117/12.2298135
Event: 17th International Conference on Infrared and Millimeter Waves, 1992, Pasadena, CA, United States

Abstract

Expanding the electromagnetic field in partially open cavity resonators in terms of the eigenmodes corresponding to the short-circuited cavity leads to a non-uniform convergence at the apertures. Recently it has been suggested [1] to overcome this problem by using the complex eigenmodes of the original cavity although the set of these eigenmodes is not complete. Both methods are applied here to an open transmission line resonator and the results are compared. Furthermore an alternative way of removing the non-uniform convergence is proposed resulting in a rigorous and numerically efficient method for the analysis of open cavity resonators.

Citation Download Citation

A. Jöstingmeier "Analysis of partially open cavity resonators using complex eigenmodes", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19290I (14 December 1992); https://doi.org/10.1117/12.2298135

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