双层介质基片上的非对称共面线

Double-layered substrate asymmetrical coplanar lines

本文首先用两种不同的模型分析自由空间中非对称共面线 ,用共形变换技术得到了基本参数的严格解 ,然后用双曲正切变换分析有限厚度介质基片上非对称共面线 ,得到了双层介质基片情况下非对称共面线的有效介电常数和特性阻抗的闭合表达式。所得公式简洁准确 ,便于微波、毫米波和光学集成电路的计算机优化设计。

In this paper asymmetrical coplanar lines in free space have been analyzed using two conformal mapping models,and the exact solutions for the basic parameters of the lines are obtained The asymmetrical coplanar lines with multilayered substrate are analyzed using the hyper tangent transformation Analytic closed form expressions for the effective dielectric constant,the capacitance per unit length,the characteristic impedance and the guide wavelength are obtained The simple and exact results obtained in this paper are useful for the CAD of microwave,millimeterwave and optical integrated circuts