Title :
Circuit model for given reflectance data constructed with mixed lumped and distributed elements for high speed/high frequency communication systems
Author :
Yarman, B.S. ; Sengul, Metin ; Kilinc, Ali ; Aksen, Ahmet
Author_Institution :
Fac. of Eng., Istanbul Univ., Turkey
Abstract :
In this paper, a reflectance-based "nonlinear interpolation method" is presented to model the measured or computed data, obtained from a "passive one-port physical device" using mixed lumped and distributed elements. Mixed element model is constructed with cascade connection of series inductors [L], commensurate transmission lines or so called unit elements [UE| and shunt capacitors [C]. Basis of the new model rests on the numerical generation of the scattering parameters of the lossless two-port constructed with cascade connection of simple [L]-[UE]-[C] elements which describes a lossless 2-port in Darlington sense. The new modeling technique does not require direct optimization of the circuit elements of the selected topology. Rather, two-variable reflection coefficient is directly determined by means of a nonlinear but "convergence guaranteed" interpolation process to best fit the given data. A low-pass filter input reflection coefficient modeling example is included to exhibit the utilization of the proposed modeling method.
Keywords :
capacitors; cascade networks; inductors; integrated circuit modelling; interpolation; nonlinear network analysis; cascade connection; circuit model; commensurate transmission lines; high speed high frequency communication systems; mixed element model; passive one-port physical device; reflectance-based nonlinear interpolation; series inductors; shunt capacitors; two-variable reflection coefficient; unit elements; Circuits; Distributed computing; Frequency; Inductors; Interpolation; Physics computing; Reflection; Reflectivity; Shunt (electrical); Transmission line measurements;
Conference_Titel :
Multidimensional Systems, 2005. NDS 2005. The Fourth International Workshop on
Print_ISBN :
3-9810299-8-4
DOI :
10.1109/NDS.2005.195323