Computation of Propagation Constants for the Fundamental and Higher Order Modes in Microstrip (Short Papers)

Farrar, Andrew; Adams, A.T.

doi:10.1109/tmtt.1976.1128873

Cited by 32 publications

(9 citation statements)

References 14 publications

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“…The problem is not limited to these techniques. It has also been reported for the Spectral Domain [8] practical experience no explanation so far given holds. The generality of the problem indicates that its origin must be looked for in some fundamental misconception which is common to all affected methods.…”

Section: Introductionmentioning

confidence: 92%

Full Wave Boundary Integral Analysis of Arbitrary Integrated Transmission Lines: Origin and Avoidance of Spurious Solutions

Schroeder¹,

Wolff²

1990

20th European Microwave Conference, 1990

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Full wave analysis of arbitrary ope or shelded transmission lines by a space domain Bundary Integral Equation Method is demonstrated. It combines versatility In structure defition with reliability in that it is free of the "spurious solution" phenomenon. a problem which pertain to virtually awy m erical method in full wave eigenvalue problems except eigecton expansions. For the rust time a thematical explanation of the orig of this problem is given and its genral solution described.

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Section: Introductionmentioning

confidence: 92%

Full Wave Boundary Integral Analysis of Arbitrary Integrated Transmission Lines: Origin and Avoidance of Spurious Solutions

Schroeder¹,

Wolff²

1990

20th European Microwave Conference, 1990

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“…(0Ver) [12], [13], Fourier integral method [14], spectral-domain method [15] - [17], boundary element method [18], [19] and finite element method [20] In order to apply the finite element approach to the problem at hand we formulate it in variational terms. The correct solution of Eqn.…”

Section: Ib S U B J E C T T E R M S Ic Ontinue On Reverse If Necessmentioning

confidence: 99%

Quasi-TEM Analysis of Microwave Transmission Lines by the Finite-Element Method

Pantic

Mittra

1986

IEEE Trans. Microwave Theory Techn.

115

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IB . S U B J E C T T E R M S iC ontinue on reverse if necessary an d id en tify by block n u m b e r)microwave & millimeter waves; digital circuits; transmis sion lines; characteristic impedance; dielectric losses; conductor losses; finite element method. This paper describes a finite element approach to quasi-TEM analysis of several dif ferent types of isolated and coupled microwave transmission lines. Both the first and higher-order ordinary elements, as well as singular and infinite elements are used to solve for the potential and field distribution in the cross-section of the line. Next, the cross-sectional field distribution is inserted in a variational expression to com-, pute the capacitance per unit length of the line and the effective permittivity and characteristic impedance of the line are obtained from the capacitance value. A perturbational approach is developed for estimating the losses due to conductor and dielec tric dissipation and computing the attenuation constant.Lines treatable by this method may contain an arbitrary number of arbitrarily shaped conductors, including a system of conductors either placed above a single ground plane or between two parallel ground planes, and inhomogeneous dielectric regions that can be approximated locally by a number of homogeneous subregions.(0Ver) DISTHI B U T IO N / Unclassified S E C U R IT Y C LA S S IFIC A TIO N OF TH IS PAGE Unclassified S E C U R IT Y C L A S S IF IC A T IO N O F T H IS P A G E S E C U R IT Y C L A S S IFIC A TIO N OF TH IS PAGE Quasi-TEM A n a ly s is o f M icro w a v e T ra n sm issio n L in es b y th e F in ite E lem en t M eth od

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“…Many mathematical tools are used in obtaining the quasi-static parameters of a microstrip line: conformal mapping for the case of a zero-thickness upper conductor by Schneider [3] and Wheeler [4], finite difference method by Stinehelfer [5], integral equation (Green's function) method by Silvester [6] and Farrar and Adams [7] and the variational method in Fourier transform domain by Yamashita and Mittra [8]. The detailed description of these approaches is also given in [9] by Gupta, Garg and Bahl.…”

Section: Introductionmentioning

confidence: 99%