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Author Matsuki, M. ♦ Matsushima, A.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Per-unit-length Impedance ♦ Efficient Numerical Solution ♦ Skin Effect ♦ Quasi-static Regime ♦ Acceptable Accuracy ♦ Computed Value ♦ Integral Equation ♦ Energy Conservation ♦ Substrate Loss ♦ Semi-infinite Lossy Substrate ♦ Non-uniform Grid ♦ Metal Region ♦ Cross Section ♦ Substrate Loss Cannot ♦ Current Density Distribution ♦ Special Function ♦ High Frequency ♦ Practical Numerical Computation Concern ♦ Parallel Line ♦ Metallic Rectangular Transmission Line
Abstract Abstract—An efficient numerical solution is presented for computing per-unit-length impedance of metallic rectangular transmission lines backed by semi-infinite lossy substrate. We formulate the problem into the set of integral equations, the kernel of which is analytically expressed in terms of special functions in the quasi-static regime. The method of moments is applied to find the current density distributions in the metal regions, where the discretization of cross sections is performed by using non-uniform grid arranged according to the skin effect. The practical numerical computations concern the influence of the substrate loss on the per-unit-length impedance for some types of parallel lines. We thereby show that the substrate loss cannot be neglected at high frequencies. The effectiveness of the proposed method is confirmed by showing that the computed values of resistance satisfy the law of energy conservation with acceptable accuracy. 1.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study