Interfacing the transmission line method (TLM) and state-space (SS) techniques to analyse general non-linear structures

Sobhy, Mohammed; Hosny, E.A.; Russer, P.; Isele, B.; Christopoulos, C.

doi:10.1049/cp:19940076

Cited by 3 publications

(4 citation statements)

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“…V r , i r denote the reflected fields (5), [] i the incident voltages, i f and V f respectively the free electric current and magnetic voltage, S the past events (6), T e (T m ) and Γ e (Γ m ) (7) respectively the transmission and reflection coefficients of the node. (g e0 , g e1 , g ee (ζ)) and (χ e0 , χ e1 , χ ee (ζ)) components result of the partial fraction expansion of the electric conductance g e (ζ) and susceptibility χ e (ζ) of the medium (( 23), (24) in [9]).…”

Section: A Minisolvementioning

confidence: 99%

“…i fz = η 0 I fz thus i fz = η 0 I macro . Incorporated in (5) this gives (8). All the other free-sources are cancelled.…”

Section: B Implementation Hypothesismentioning

confidence: 99%

“…Indeed it exploits the field-circuit equivalence and has the advantage, compared to the finite-difference time-domain method (FDTD), of calculating field components at the same time and at the same location. Embedding can be realised in two ways: either through a external link to a circuit solver such as SPICE [1], or by direct embedding as in [2]- [5], restricted to diodes, and [6] with digital IC macromodels. The first option gives access to a wide range of models via the SPICE libraries.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hybridisation of non-linear behavioural models with the TLM full-field model

Kergonou

Christopoulos

Canavero

2010

19th Topical Meeting on Electrical Performance of Electronic Packaging and Systems

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We describe the inclusion of parametric behavioral macromodels within the Transmission-Line Modelling (TLM) method. The macromodels reproduce the input/output port nonlinear behavior of digital integrated circuit (IC). They are integrated in the 3D electromagnetic full-field code Minisolve either through a current source or conductance of the medium. The numerical results are compared to experimental data.

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Section: A Minisolvementioning

confidence: 99%

“…i fz = η 0 I fz thus i fz = η 0 I macro . Incorporated in (5) this gives (8). All the other free-sources are cancelled.…”

Section: B Implementation Hypothesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybridisation of non-linear behavioural models with the TLM full-field model

Kergonou

Christopoulos

Canavero

2010

19th Topical Meeting on Electrical Performance of Electronic Packaging and Systems

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“…Several approaches have been proposed,like those in [2,3,4], which combine different numerical methodologies such as finite differences techniques, TLM and integral-equation-based methods. Moreover, also apparent has been the need of overcoming some limitations of classical modal techniques by developing new approaches as described e.g.…”

Section: Introductionmentioning

confidence: 99%

Waveguide Component Analysis by a Generalized Network Approach

Felsen

Mongiardo

Russer³

et al. 1997

27th European Microwave Conference, 1997

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Efficient field computations for complex waveguide components require partitioning of the overall spatial domain into subdomains which are analyzed via suitable analytical or numerical methods and which are interconnected by field matching across the subdomain interfaces. Problem-matched alternative representations of the dyadic Green's functions for each subdomain permit derivation of corresponding alternative generalized networks. The algorithm architecture is presented in terms of a compact operator format that highlights the underlying principles. Simple examples of waveguide circuits are introduced in order to illustrate relevant concepts.

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A general interface between TLM models and lumped element circuit models

Russer

Isele

Sobhy

et al.

1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4)

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discussed for the case of a lumped nonlinear diode and a lumped element generator embedded in a microstrip circuit. The microstrip circuit is modeled via TLM whereas the lumped element models are described by the state space approach. ABSTRACTWe describe the interfacing of transmission line matrix models of distributed microwave circuits with lumped element models. The lumped element circuits are connected with the distributed circuit via a line guiding only its fun-2 Interface of TLM Model with TEM Line damental TEM mode. The distributed circuit is modeled by the transmission line matrix (TLM) method. From the method of moments foundation of TLM it follows that the electromagnetic field can be expanded in subdomain base functions. The location of the transverse boundary surface between the TLM model and the TEM line is chosen at a location where the evanescent higher modes have completely decayed. Mode matching theory is applied for computation of the scattering matrix between the TLM lines and the TEM line. The interfacing between distributed circuits and lumped element circuit is discussed for the case of a lumped nonlinear diode and a lumped element generator embedded in a microstrip circuit. The microstrip circuit is modeled via TLM wheras the lumped element models are described by the state space approach.

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Interfacing the transmission line method (TLM) and state-space (SS) techniques to analyse general non-linear structures

Cited by 3 publications

References 0 publications

Hybridisation of non-linear behavioural models with the TLM full-field model

Hybridisation of non-linear behavioural models with the TLM full-field model

Waveguide Component Analysis by a Generalized Network Approach

A general interface between TLM models and lumped element circuit models

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