Scattering analysis of a coaxial line terminated by a gap

Eom, Hyo J.; Noh, Young‐Chul; Park, J.K.

doi:10.1109/75.678569

Cited by 17 publications

(7 citation statements)

References 3 publications

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“…Fig. 7 shows the phase variation of the reflection coefficient versus the frequency, comparing the results by mode-matching method [4] and Marcuvitzs analytical results [5]. Our results are in good agreement with [5] for wide frequencies.…”

Section: Numerical Procedures and Resultssupporting

confidence: 67%

An Analysis of Coaxial Line Slot antenna for Hyperthermia Treatment by Spectral Domain Approach

et al. 2006

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An extended spectral domain approach (ESDA) is applied to evaluate the scattering parameter of laterally slotted coaxial antenna for hyperthermia treatment. The results calculated by ESDA are in good agreement with that by Finite Element Method (FEM) simulation. Computational labor of the present method is far lighter than that of FEM, and the method is suitable for the iterative computation that is required for the optimization of antenna design. The present method can afford to consider the effect of the metallization thickness in the outer conductor.

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Section: Numerical Procedures and Resultssupporting

confidence: 67%

An Analysis of Coaxial Line Slot antenna for Hyperthermia Treatment by Spectral Domain Approach

et al. 2006

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“…Re-entrant coaxial waveguide and its circuit segmentation. By short-circuiting (perfect electric walls are assumed in the simulation) both ends (ports 1 and 2), and imposing resonant condition [57], this structure becomes a re-entrant cavity, which is a common device for measuring the complex permittivity of dielectric materials, as described in [29,[58][59][60][61][62].…”

Section: A Coaxial Waveguide Loaded With a Dielectric Diskmentioning

confidence: 99%

Full-Wave Analysis of Dielectric-Loaded Cylindrical Waveguides and Cavities Using a New Four-Port Ring Network

Peñaranda‐Foix

Janezic

Catalá-Civera

et al. 2012

IEEE Trans. Microwave Theory Techn.

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Penaranda-Foix, FL.; Janezic, MD.; Catalá Civera, JM.; Canós Marín, AJ. (2012). Full-wave analysis of dielectric-loaded cylindrical waveguides and cavities using a new four-port ring network. IEEE Transactions on Microwave Theory and Techniques. 60(9):2730-2740. doi:10.1109/TMTT.2012.2206048. > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 Abstract-In this paper, a full-wave method for the electromagnetic analysis of dielectric-loaded cylindrical and coaxial waveguides and cavities is developed. For this purpose, a new 4-port ring network is proposed, and the mode-matching method is applied to calculate the Generalized Admittance Matrix (GAM) of this new structure. A number of analyses on dielectric-loaded waveguide structures and cavities have been conducted in order to validate and to assess the accuracy of the new approach. The results have been compared with theoretical values, numerical modeling from the literature, and data from commercial electromagnetic simulators. The method has been also applied to the accurate determination of dielectric properties, and we provide an example of these measurements as another way to validate this new method.

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“…1 r ∂ ∂r (rH φ ) = jωεE z (10) Since in the problem of dispersion characteristics analysis, the structure is considered to be uniform along the z axis, (8) and (9) can be rewritten as follows:…”

Section: Solving Propagation Constants In Axisymmetrical Structuresmentioning

confidence: 99%

“…Although the numerical methods such as finite element method and FDTD can deal with complex irregular structures with more flexibility, for the structures considered in this paper, it can be expected that the mode matching method has more advantages since it conforms closely to physical reality [7] and apparently has much less unknown variables. For some specific axisymmetrical coaxial discontinuity structures, mode matching method has been successfully applied [3,4,8]. It is the purpose of this paper to present a general approach based on the mode matching method to deal with this kind of coaxial discontinuity structures.…”

Section: Introductionmentioning

confidence: 99%

“…This kind of structures are usually analyzed in the frequency domain by using mode matching method [3,4,7,8], full-wave spectral-domain method [9], finite element method [5,10], or frequency domain transmission line matrix method [6], or in the time domain by using FDTD method [11][12][13][14]. Although the numerical methods such as finite element method and FDTD can deal with complex irregular structures with more flexibility, for the structures considered in this paper, it can be expected that the mode matching method has more advantages since it conforms closely to physical reality [7] and apparently has much less unknown variables.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of Mode Matching Method to Analysis of Axisymmetric Coaxial Discontinuity Structures Used in Permeability and/or Permittivity Measurement

Huang¹,

Zhang²

2007

PIER

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Abstract-This paper presents a mode matching method to analyze axisymmetric coaxial discontinuity structures, commonly used in the permeability and/or permittivity measurement. By performing the mode matching procedures at all discontinuity interfaces, a set of general simultaneous equations are derived, which can be easily solved. The s parameters and field distribution in the structures are readily obtained from the solution to the simultaneous equations. As a preliminary preparation for the mode matching method, the propagation constants of all the sections in the structure have to be solved. A one-dimensional frequency domain finite difference method is presented in this paper to efficiently solve the propagation constants for the multi-layered axisymmetric structures. Numerical examples show that the results obtained from the method in this paper are in good agreement with those from other methods in the published literature papers, and the method presented here has much higher efficiency.

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Scattering analysis of a coaxial line terminated by a gap

Cited by 17 publications

References 3 publications

An Analysis of Coaxial Line Slot antenna for Hyperthermia Treatment by Spectral Domain Approach

An Analysis of Coaxial Line Slot antenna for Hyperthermia Treatment by Spectral Domain Approach

Full-Wave Analysis of Dielectric-Loaded Cylindrical Waveguides and Cavities Using a New Four-Port Ring Network

Application of Mode Matching Method to Analysis of Axisymmetric Coaxial Discontinuity Structures Used in Permeability and/or Permittivity Measurement

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