Systematic development of transmission line models for interconnects with frequency-dependent losses

Coperich, K.M.; Morsey, J.; Okhmatovski, Vladimir; Cangellaris, A.C.; Ruehli, A.E.

doi:10.1109/epep.2000.895532

Cited by 12 publications

(14 citation statements)

References 17 publications

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“…where a, b are two points on the PCB reference (ground) plane and on the trace, respectively (see [1]), and Y (ω) is the transverse per-unit-length admittance, here computed using a 2D MoM solver [3], [4]. The incident electric field E i is defined as the externally-excited field (in present case by the radiating phone antenna) in presence of the return (ground) conductor, with the trace removed.…”

Section: Coupling Coefficientsmentioning

confidence: 99%

Fast Assessment of Antenna-PCB Coupling in Mobile Devices: a Macromodeling Approach

Grivet-Talocia

Bandinu

Canavero

et al. 2009

2009 20th International Zurich Symposium on Electromagnetic Compatibility

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This paper presents a fast procedure for the evaluation of electromagnetic coupling between antennas and Printed Circuit Board (PCB) traces on mobile devices. Starting from the geometrical description of the device, a single full-wave simulation is used to compute the electric fields at selected PCB locations. Then, the theory of field-excited transmission lines is used to compute the antenna-induced EMI coupling coefficients at the terminations of an arbitrarily routed PCB trace. The results are finally fed to a rational fitting algorithm for the generation of a broadband SPICE-compatible netlist. This netlist can be used in system-level circuit-based simulations for signal integrity assessments including antenna-induced EMI.

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Section: Coupling Coefficientsmentioning

confidence: 99%

Fast Assessment of Antenna-PCB Coupling in Mobile Devices: a Macromodeling Approach

Grivet-Talocia

Bandinu

Canavero

et al. 2009

2009 20th International Zurich Symposium on Electromagnetic Compatibility

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“…Fig. 5(b) compares the result of the proposed full-wave model for the input resistance of the short-circuited differential line, calculated for frequencies from 10 MHz to 2 GHz, with that obtained from a transmission line model with per-unit-length parameters extracted using the methodology of [14] and thus accounting for frequency-dependent (skin-effect) resistance and inductance effects. The transmission-line model results serves as the reference solution in this case, since over the frequency range used for the comparison the length of the line remain below one tenth of the wavelength.…”

Section: Numerical Resultsmentioning

confidence: 98%

Finite-Thickness Conductor Models for Full-Wave Analysis of Interconnects With a Fast Integral Equation Method

Morsey

Okhmatovski

Cangellaris

2004

IEEE Trans. Adv. Packag.

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In this paper, a fast electromagnetic integral equation solution methodology is proposed for the frequency-domain modeling of lossy, interconnect structures. The proposed method utilizes a two-layer model for thick conductors where the unknown current density inside the rectangular wire strips is approximated in terms of equivalent surface currents placed at the top and bottom sides of the strip which, for the purposes of this paper, are assumed to be substantially larger than the side strips. A matrix impedance relationship, which depends on the conductor thickness and its material properties, is established between the two surface current densities to account for the skin effect behavior of the field within the conductor. The selected assignment of the unknown current densities on the planes associated with the top and bottom sides of the metallization, combined with the planarity of multilayered interconnect structures, makes possible the application of the conjugate gradient fast Fourier transform (FFT) algorithm for the computationally efficient prediction of the electromagnetic response of multiport interconnect structures. Applications of the resulting fast integral equation solver to the electromagnetic modeling of interconnect circuits with thick lossy conductors from near dc to multigigahertz frequencies are used to demonstrate the validity of the method and quantify its computational efficiency.

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“…Recently, a systematic methodology [5] was presented for the development of transmission line models for interconnects with frequency-dependent parameters. The SPICE-compatible models are presented, and the finite-difference time-domain (FDTD) method is used for transient interconnect simulation…”

Section: Introductionmentioning

confidence: 99%

Analysis of interconnects with frequency-dependent parameters by differential quadrature method

Tang

Mao

2005

IEEE Microw. Wireless Compon. Lett.

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This letter presents an efficient numerical method for the transient analysis of interconnects with frequency-dependent parameters. The development of interconnects model starts from frequency-domain Telegrapher's equations, and the time-domain equations including convolutions are obtained by inverse Laplace transform. Then, the differential quadrature method (DQM) approximates them to a set of ordinary differential equations. The numerical convolution items are calculated by recursive algorithm, which leads to high efficiency of this method. In addition, the model does not use any restrictive assumptions on the frequency dependence of interconnects parameters. A numerical example is presented to demonstrate the accuracy and efficiency of the proposed method.Index Terms-Differential quadrature method (DQM), frequency-dependent parameters, interconnects, recursive algorithm.

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Systematic development of transmission line models for interconnects with frequency-dependent losses

Cited by 12 publications

References 17 publications

Fast Assessment of Antenna-PCB Coupling in Mobile Devices: a Macromodeling Approach

Fast Assessment of Antenna-PCB Coupling in Mobile Devices: a Macromodeling Approach

Finite-Thickness Conductor Models for Full-Wave Analysis of Interconnects With a Fast Integral Equation Method

Analysis of interconnects with frequency-dependent parameters by differential quadrature method

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