Efficient and accurate full-wave analysis of the open-ended coaxial cable

Panariello, G.; Verolino, L.; Vitolo, Giuliana

doi:10.1109/22.932251

Cited by 22 publications

(14 citation statements)

References 16 publications

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“…And the efficiency and accuracy of the second strategy are closely related to the treatment of these integrals. Approaches [15,16] have been proposed to deal with the involved integrals for the case as the dielectric material is assumed to occupy the entire half space. Yet, these approaches are inapplicable to the case that the sample is of thin sheet, or with finite thickness, which is often encountered in many practical engineering environments.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Integrals Involved in Open-ended Coaxial Method for Electromagnetic Property Measurement of Finite-Thickness Materials

Qiu

Jiang

2009

Journal of Electromagnetic Waves and Applications

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Integrals defined over an infinite range are involved in open-ended coaxial method for measurement of electromagnetic properties of finite-thickness materials, and the efficiency and accuracy of the coaxial method depend, to the greatest degree, on the evaluation of these integrals. A scheme for the evaluation of these integrals is proposed. By asymptotic manipulations of integrands, the infinite range over which the integrals are defined is truncated with preset accuracy. Numerical examples have been provided to verify the validity of the technique.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Integrals Involved in Open-ended Coaxial Method for Electromagnetic Property Measurement of Finite-Thickness Materials

Qiu

Jiang

2009

Journal of Electromagnetic Waves and Applications

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“…The admittance of an open‐ended waveguide radiating into layered medium was studied by Galejs [1965] decades ago. Open‐ended waveguides radiating through a one‐layer superstrate were studied by many researchers such as Crosswell et al [1967], Wu [1969], Chow et al [1991], Li and Chen [1995], and Panariello et al [2001]. The multilayer effects on cavity‐backed slot antennas were studied by Vouvakis et al [2004] using the hybrid finite element method/method of moments (FEM/MoM) approach.…”

Section: Introductionmentioning

confidence: 99%

Efficient full‐wave analysis of an open‐ended waveguide radiating through a two‐layer superstrate

Tan

Shen

2009

Radio Science

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[1] This paper presents an efficient full-wave analysis of an open-ended waveguide radiating through a two-layer superstrate. The spectral dyadic Green's function for a multilayer medium is formulated through cascaded matrices, each of which corresponds to one layer of the superstrate independently. The reflection coefficient matrix is derived by enforcing the field matching condition at the opening of the waveguide. The generalized pencil of function (GPOF) method and Gaussian quadrature are adopted to accelerate the computation. Once the excitation and the Green's function are known, the far-field radiation pattern and directivity are obtained directly from the spectra of the electric and magnetic fields in the half free space. An open-ended WR-90 waveguide radiating through a two-layer superstrate is considered as an example to verify the proposed efficient full-wave analysis. The effect of the superstrate on the directivity of open-ended waveguides is also examined and discussed.

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“…Up to now, several techniques have been developed for this purpose, such as analytical analysis, semi-analytical full-wave method, and numerical simulation [16][17][18][19][20][21][22][23][24][25][26][27][28][29]. For the analytical method, it is conventionally assumed a probe flange of an infinite area and only fundamental TEM mode propagation inside the coax [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Fast and Stable Integration Method for the Aperture Admittance of an Open-Ended Coaxial Probe Terminated Into Low-Loss Dielectrics

Zhou¹,

Ju²,

Wang³

et al. 2017

PIER M

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Abstract-Theutilization of an open-ended coaxial probe for characterization of dielectric properties or quantitative nondestructive detection of defects in materials firstly requires evaluating the aperture admittance. For the case that the probe is terminated into low-loss dielectrics backed by a conducting sheet, however, the admittance expression encounters poles in the vicinity of the path of integration, resulting in low convergence rate or even overflow in numerical quadrature. In this study, locations and properties of the singularities of the integral formulation for generally lossy, low-loss, and lossless dielectric slabs backed by a perfectly conducting sheet are investigated above all. Subsequently, making use of the contour integral technique, a fast and stable integration method is put forward to calculate the admittance integral formulation. Finally, numerical experiments are conducted to justify the validity and efficiency of the proposed integration method for low-loss dielectric cases by comparison with the traditional integration method as well as commercial FEM software.

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Efficient and accurate full-wave analysis of the open-ended coaxial cable

Cited by 22 publications

References 16 publications

Evaluation of Integrals Involved in Open-ended Coaxial Method for Electromagnetic Property Measurement of Finite-Thickness Materials

Evaluation of Integrals Involved in Open-ended Coaxial Method for Electromagnetic Property Measurement of Finite-Thickness Materials

Efficient full‐wave analysis of an open‐ended waveguide radiating through a two‐layer superstrate

Fast and Stable Integration Method for the Aperture Admittance of an Open-Ended Coaxial Probe Terminated Into Low-Loss Dielectrics

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