Title :
Characterizing the cylindrical via discontinuity
Author :
Harms, Paul H. ; Lee, Jin-Fa ; Mittra, Raj
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
1/1/1993 12:00:00 AM
Abstract :
It is demonstrated that the nonorthogonal finite-difference-time-domain (FDTD) technique can handle cylindrical via discontinuities without the use of an excessive number of unknowns as would be required with an equivalent orthogonal FDTD approach. Since the FDTD analysis is bandlimited in the frequency domain, the inaccurate, high-frequency components need to be removed before performing reliable transient analyses with the numerical results. The use of window filters to solve this problem is discussed, and a Hanning window is employed in a study of the transient response of an equivalent circuit for the via
Keywords :
equivalent circuits; finite difference time-domain analysis; microstrip lines; transient response; waveguide theory; HF component removal; Hanning window; cylindrical via discontinuity; equivalent circuit; finite-difference-time-domain; high-frequency components; nonorthogonal FDTD; transient analyses; transient response; window filters; Dielectrics; Electromagnetic waveguides; Finite difference methods; Microstrip antennas; Microwave theory and techniques; Notice of Violation; Optical resonators; Optical waveguides; Time domain analysis; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
