Title :
Accurate analysis of periodic structures with an additional symmetry in the unit cell from classical matrix eigenvalues
Author :
Amari, Smain ; Vahldieck, Rüdiger ; Bornemann, Jens
Author_Institution :
Lab. for Field Theory & Microwave Electron., Fed. Inst. of Technol., Zurich, Switzerland
fDate :
10/1/1998 12:00:00 AM
Abstract :
Dispersion diagrams of periodic structures with an additional symmetry in the unit cell are investigated by the example of a parallel-plate waveguide loaded with irises of zero thickness. The propagation constants of the Floquet modes are determined from the classical eigenvalues of a non-Hermitian matrix
Keywords :
dispersion (wave); eigenvalues and eigenfunctions; electromagnetic wave propagation; integral equations; waveguide theory; Floquet modes; classical matrix eigenvalues; dispersion diagrams; iris-loaded waveguide; nonHermitian matrix; parallel-plate waveguide; periodic structures; propagation constants; unit cell additional symmetry; Anisotropic magnetoresistance; Boundary conditions; Eigenvalues and eigenfunctions; Electromagnetic scattering; Electromagnetic wave absorption; Finite difference methods; Microwave propagation; Perfectly matched layers; Periodic structures; Propagation losses;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
