Title :
Equivalent circuit parameter extraction of microstrip coupling lines using FDTD method
Author :
Lion, L.L. ; Muh, M.Y. ; Ferendeci, A.
Author_Institution :
Air Force Res. Lab., Wright-Patterson AFB, OH, USA
Abstract :
A new algorithm, in conjunction with FDTD simulation, was developed to perform direct extractions of the equivalent circuit parameters for the coupled microstrip lines. The unit-length capacitance and inductance were derived from the FDTD results. The frequency-dependent microwave parameters such as phase velocity and the characteristic impedance do not show anomalous oscillation. Incorporated with the even-odd analysis, the scattering parameters of the coupled microstrip lines with a flexible coupling length can be calculated. The calculation results were found in good agreement with the measured scattering parameter data.
Keywords :
S-parameters; capacitance; coupled transmission lines; digital simulation; equivalent circuits; finite difference time-domain analysis; inductance; microstrip lines; transmission line matrix methods; waveguide theory; ABCD matrix; FDTD method; FDTD simulation; algorithm; characteristic impedance; coupled microstrip lines; coupling length; equivalent circuit parameter extraction; even-odd analysis; frequency-dependent microwave parameters; measured scattering parameter data; microstrip coupling lines; phase velocity; unit-length capacitance; unit-length inductance; Capacitance; Circuit simulation; Coupling circuits; Equivalent circuits; Finite difference methods; Inductance; Microstrip; Parameter extraction; Scattering parameters; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874487
