Title :
Dispersion characteristics analysis of lossy coaxial metal waveguide with 4-Component compact 2-D FDFD method
Author :
Wei Zhao ; Deng, Hong-wei ; Zhao, Yong-jiu
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
Abstract :
A 4-component compact 2-D finite-difference frequency-domain (FDFD) method is applied for the analysis of dispersion characteristics of lossy coaxial metal waveguide. Although the longitudinal field components are eliminated in this method and only four transverse field components are involved in the final resulting eigen equation, the surface-impedance boundary condition (SIBC) can still be easily implemented with even much simpler discrete expression as compared to the existing approaches by which six field components are comprised. By solving the eigen equation, the propagation constant is obtained for a given frequency. Very good agreement is achieved.
Keywords :
coaxial waveguides; dispersion (wave); eigenvalues and eigenfunctions; finite difference methods; frequency-domain analysis; surface impedance; 2D finite-difference frequency-domain method; dispersion characteristics analysis; eigen equation; longitudinal field components; lossy coaxial metal waveguide; propagation constant; surface-impedance boundary condition; transverse field components; Boundary conditions; Coaxial components; Educational institutions; Finite difference methods; Frequency domain analysis; Information analysis; Maxwell equations; Propagation constant; Propagation losses; Surface waves; coaxial waveguide; eigen equation; finite-difference frequency-domain (FDFD); propagation constant; surface-impedance boundary condition (SIBC);
Conference_Titel :
Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2192-3
Electronic_ISBN :
978-1-4244-2193-0
DOI :
10.1109/ISAPE.2008.4735351
