Abstract:This paper presents numerical procedures applied to the accurate and robust calculation of thousands of eigenfrequencies for lossless resonators. The eigenfield determination is accomplished in two steps. Initially, the finite-integration technique or the finite-element method with higher order curvilinear elements is used, and further, the (B-)Lanczos method with its variations is exploited for the solution of the (generalized) eigenvalue problem. The application to the Bunimovich billiard resonator comparati… Show more
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