Title :
FDTD Modeling and Analysis of Microstrip Circulators
Author :
Lenge, J. ; Steinwachs, G. ; Gieseke, I. ; Schulz, D.
Author_Institution :
Universitÿt Dortmund, Lehrstuhl fÿr Hochfrequenztechnik, Otto-Hahn-StraÃ\x9fe 6, D-44221 Dortmund, Germany. lenge@hft.e-technik.uni-dortmund.de
Abstract :
A finite difference time domain (FDTD) simulation model for microwave circuits that includes ferrite loaded regions is applied to the analysis of circulator structures designed in microstrip technology. The relevant theoretical background is described including an FDTD based model for magnetized ferrite material The suitability of the model is demonstrated for several examples with different geometries. For verification the obtained scattering parameters are compared with experimental results.
Keywords :
Analytical models; Circuit simulation; Circulators; Ferrites; Finite difference methods; Magnetic analysis; Magnetic materials; Microstrip; Solid modeling; Time domain analysis;
Conference_Titel :
Microwave Conference, 1998. 28th European
Conference_Location :
Amsterdam, Netherlands
DOI :
10.1109/EUMA.1998.338166
