Quasistatic solutions of cylindrical coplanar waveguides

Su, Hsin-Cheng

doi:10.1002/(sici)1098-2760(19970420)14:6<347::aid-mop12>3.3.co;2-w

Cited by 4 publications

(10 citation statements)

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“…In the first comparison, the results for the effective permittivity and characteristic impedance of CCPW having a [3,4] and ANN for G/h 1 = 1, CMT [3,4] and ANN for G/h 1 = 2, CMT [3,4] and ANN for G/h 1 = 3, CMT [3,4] and x ANN for G/h 1 = 4. [6] and ANN for G/h 1 = 1, CMT [6] and ANN for G/h 1 = 2, CMT [6] and ANN for G/h 1 = 3, CMT [6] and x ANN for G/h 1 = 4.…”

Section: Results and Conclusionmentioning

confidence: 99%

“…576 data sets obtained from [3,4,6] were used to test the neural model for multilayer CCPW. The training and test data sets were obtained from CMT proposed by Gorur et al [9] and 1008 data sets were used to train the neural model for multilayer CCPS.…”

Section: Neural Models For Multilayer Ccpw and Ccpsmentioning

confidence: 99%

“…CCPW with a single dielectric substrate has been analyzed with the use of full-wave [1,2] and quasi-static [3][4][5] methods. Multilayer CCPW has been analyzed by Alkan et al [6] with the use of conformal mapping technique (CMT) which is the most often used quasi-static method.…”

Section: Introductionmentioning

confidence: 99%

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Quasi-Static Models Based on Artificial Neural Neworks for Calculating the Characteristic Parameters of Multilayer Cylindrical Coplanar Waveguide and Strip Line

Yildiz¹,

Türkmen²

2008

PIER B

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Abstract-In this paper, two different neural models are proposed for calculating the quasi-static parameters of multilayer cylindrical coplanar waveguides and strip lines. These models were basically developed by training the artificial neural networks with the numerical results of quasi-static analysis. Neural models were trained with four different learning algorithms to obtain better performance and faster convergence with simpler structure. When the performances of neural models are compared with each other, the best test results are obtained from the multilayered perceptrons trained by the LevenbergMarquardt algorithm. The results obtained from the neural models are in very good agreements with the theoretical results available in the literature.

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Section: Results and Conclusionmentioning

confidence: 99%

Section: Neural Models For Multilayer Ccpw and Ccpsmentioning

confidence: 99%

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Quasi-Static Models Based on Artificial Neural Neworks for Calculating the Characteristic Parameters of Multilayer Cylindrical Coplanar Waveguide and Strip Line

Yildiz¹,

Türkmen²

2008

PIER B

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“…1, cross sectional view of the transmission line used to form CCPW discontinuities is seen with defined physical parameters. The characteristic impedance and effective dielectric constant of CCPW can be calculated as follows [3,4,9] …”

Section: Calculation Of Characteristic Line Parameters For Ccpwmentioning

confidence: 99%

Designs and Analyses of Some Rf/Microwave Passive Elements on Cylindrical CPWS

Akan

Duyar²,

Yazgan³

et al. 2009

PIER Letters

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Abstract-In this article, designs and analyses of several CCPW (Cylindrical CPW) discontinuities have been realized as microwave reactive elements.The quasi-TEM characteristic parameters of CCPWs have been obtained by CMT (Conformal Mapping Techniques) which provide satisfactory accuracy at microwave frequencies and lead to closed-form analytical solutions suitable for CAD software packages. Then these discontinuities have been simulated in CST Microwave Studio 2006 in order to obtain inductance, capacitance and also input impedance versus frequency and physical dimensions of the elements. The results show that CCPW

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“…Hence such waveguides have many potential applications in the design of various passive elements like transitions, baluns, and impedance transformers. As known, the electrical parameters of elliptical and cylindrical coplanar waveguide have been investigated by many researchers [6][7][8][9][10][11][12]. Analyses of these transmission lines by using existing numerical approaches need much more calculation time and computer resources.…”

Section: Introductionmentioning

confidence: 99%

Conductor loss calculation of elliptical, cylindrical coplanar waveguides and coplanar waveguides with finite conductor thickness

Duyar

Akan

Yazgan

et al. 2009

JAE

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In this paper, new and fast analytical formulations have been presented for conductor loss calculations of elliptical (ECPW) and cylindrical coplanar waveguide (CCPW) with finite conductor thickness. These expressions are derived using conformal mapping techniques (CMT) and the validity of them is established by comparing the numerical results in the literature. These comparisons indicate that for the same conductor thickness the conductor losses of elliptical and cylindrical coplanar waveguide are higher than the conductor losses of coplanar waveguide presented in [1]. Calculation method developed in this study is an extension of the approximate technique proposed by Ghione [1].

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Quasistatic solutions of cylindrical coplanar waveguides

Cited by 4 publications

References 0 publications

Quasi-Static Models Based on Artificial Neural Neworks for Calculating the Characteristic Parameters of Multilayer Cylindrical Coplanar Waveguide and Strip Line

Quasi-Static Models Based on Artificial Neural Neworks for Calculating the Characteristic Parameters of Multilayer Cylindrical Coplanar Waveguide and Strip Line

Designs and Analyses of Some Rf/Microwave Passive Elements on Cylindrical CPWS

Conductor loss calculation of elliptical, cylindrical coplanar waveguides and coplanar waveguides with finite conductor thickness

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