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Extraction of multiple coupled line parameters using FDTD simulation

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5 Author(s)
Kim, Y. ; Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA ; Tripathi, A. ; Settaluri, R.K. ; Weisshaar, A.
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A general characterisation procedure based on the extraction of a 2n-port admittance matrix corresponding to n uniform coupled lines using the finite difference time domain (FDTD) technique is presented. The frequency-dependent normal mode parameters are obtained from the 2n-port admittance matrix, which in turn provide the frequency-dependent distributed inductance and capacitance matrices. To illustrate the technique, several practical coupled line structures, including a three-line structure, have been simulated. It is shown that the FDTD-based time domain characterisation procedure is an excellent broadband simulation tool for modelling and characterisation of multiconductor coupled transmission lines

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Microwaves, Antennas and Propagation, IEE Proceedings  (Volume:146 ,  Issue: 6 )