An Accurate Experimental Method for Characterizing Transmission Lines Embedded in Multilayer Printed Circuit Boards

Narita, Kôichi; Kushta, Taras

doi:10.1109/tadvp.2005.849543

Cited by 23 publications

(8 citation statements)

References 12 publications

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“…There are some conventional and modified transmission line characterization methods that employ VNA measurements [27][28][29][30]. This paper uses a frequency-dependent RLGC(f) modeling approach for distributed parameter extraction from measured S-parameters.…”

Section: Modeling and Parameter Optimizationmentioning

confidence: 99%

RLGC(f) modeling of a busbar distribution system via measured S-parameters at CENELEC and FCC bands

Hasirci¹,

Çavdar²,

Öztürk³

2018

Turk J Elec Eng & Comp Sci

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This paper addresses the extraction of accurate frequency-dependent per-unit-length RLGC parameters for busbar distribution systems using measured S-parameters for the CENELEC and FCC bands. A busbar is a distribution system element (three phase, low voltage) with a modular structure that carries electrical energy in buildings. The S-parameters of a busbar distribution system at different current levels (630 A, 1250 A, 2000 A) are measured with a vector network analyzer and then analyzed for three different two-port connections (L1-N, L2-N, L3-N). A frequencydependent RLGC(f) model is used to characterize the busbar as a transmission line using a derivative-free optimization algorithm. A time-domain causality check is also conducted. Estimated RLGC parameters are presented along with characteristic impedance and propagation constant. Good agreement has been achieved between measured and estimated S-parameters.

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Section: Modeling and Parameter Optimizationmentioning

confidence: 99%

RLGC(f) modeling of a busbar distribution system via measured S-parameters at CENELEC and FCC bands

Hasirci¹,

Çavdar²,

Öztürk³

2018

Turk J Elec Eng & Comp Sci

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“…In our approach so far, we notice that the formulations are very similar to the line-reflect-line (LRL) method that is often used as a calibration technique for vector network analyzers (VNAs) [36] or can even be used to extract the transmission line characteristics [37][38][39] by use of two different delay lines. Our equations presented here are understood, because the interfaces A and B in Figure 1 can be viewed as the error boxes or discontinuities in [36][37][38][39].…”

Section: Equations From S-parameters Of Two Samples Of Different Lengthsmentioning

confidence: 99%

“…Our equations presented here are understood, because the interfaces A and B in Figure 1 can be viewed as the error boxes or discontinuities in [36][37][38][39].…”

Section: Equations From S-parameters Of Two Samples Of Different Lengthsmentioning

confidence: 99%

“…Without assuming the Fresnel reflection and transmission coefficients, we present the equation for determining the effective refractive index of a metamaterial as a function of airto-slab and slab-to-air reflections and transmission that can be found from the S-parameters, either measured or simulated by two samples of different length. The formulation in this paper appears very analogous to the line-reflect-line (LRL) method [36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

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Effective Material Property Extraction of a Metamaterial by Taking Boundary Effects Into Account at Te/Tm Polarized Incidence

Kim¹,

Kuester²,

Holloway³

et al. 2012

PIER B

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Abstract-In this paper, we present the extraction for effective material parameters for a metamaterial from TE or TM waveguide measurements with generalized sheet transition conditions (GSTCs) used to provide electric and magnetic surface susceptibilities that approximate boundary effects between the metamaterial and air. The retrieval algorithm determines the effective material properties via scattering data obtained from the metamaterial in a waveguide. The effective refractive index is expressed as a function of S-parameters for two samples of different length. The effective wave impedance is given in terms of S-parameters and the refractive index, assuming that GSTCs account for the boundary effects. The effective permittivity and permeability can then be determined through the refractive index and wave impedance. By use of S-parameters generated by commercial three-dimensional (3-D) full-wave simulation software our present equations are tested for two cases of metamaterials: magneto-dielectric (ε r = µ r ) and dielectric (TiO 2 ) particles. We also conduct S-parameter measurements on dielectric cubes with an S-band (WR-284) waveguide to compute the effective material properties. Furthermore, our results are compared to those derived from another retrieval method used in the literature, which does not account for boundary effects.

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“…In the literature, several techniques have been introduced to extract the transmission line parameters for different transmission lines (RLGC parameters, characteristic impedance Z c , and propagation constant γ). Basically, they can be grouped as conventional methods (CM) and modified methods (MM) [3][4][5][6]. Some of them are generally based on measurements of the S-parameters [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Applicability Comparison of Transmission Line Parameter Extraction Methods for Busbar Distribution Systems

Hasirci¹,

Çavdar²,

Öztürk³

2017

Journal of Electrical Engineering and Technology

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-Modeling busbar distribution system as a transmission line is an important subject of power line communication in the smart grid concept. This requires extraction of busbar RLGC parameters, accurately. In this study, a comparison is made between conventional and modified method for the aspect of optimum RLGC parameters extraction in the 1 MHz to 50 MHz frequency band. The usefulness of these methods is shown both in time and frequency-domain analysis. The frequency-domain analyzes show that the inherent power of modified method can eliminate the errors especially due to the discontinuities arise in conventional method. This makes the modeling approach of modified method more advantageous for the busbars due to its robustness against disturbances in the S-parameters measurements which cannot be eliminated with the calibration procedure. On the other hand, time-domain simulations show that the transmission line representation of the modified method is closer to physical reality by handling causality issues.

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An Accurate Experimental Method for Characterizing Transmission Lines Embedded in Multilayer Printed Circuit Boards

Cited by 23 publications

References 12 publications

RLGC(f) modeling of a busbar distribution system via measured S-parameters at CENELEC and FCC bands

RLGC(f) modeling of a busbar distribution system via measured S-parameters at CENELEC and FCC bands

Effective Material Property Extraction of a Metamaterial by Taking Boundary Effects Into Account at Te/Tm Polarized Incidence

Applicability Comparison of Transmission Line Parameter Extraction Methods for Busbar Distribution Systems

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