The Design of Coupled Microstrip Lines
The Design of Coupled Microstrip Lines
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DOI：
10.1109/tmtt.1975.1128605
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发表时间：
1975-06
影响因子：
4.3
通讯作者：
S. Akhtarzad;T. Rowbotham;P. Johns
中科院分区：
文献类型：
--
作者：
S. Akhtarzad;T. Rowbotham;P. Johns
虽然图形的结果和公式可用于微带耦合器的设计，设计过程中受到阻碍，因为偶模和奇模阻抗总是表示的物理几何形状。在实践中，设计者获得这些阻抗，然后需要知道由它们给出的几何形状。本文提出了一种新的耦合平行微带线的设计方法。该技术使耦合线的几何形状直接从所需的偶模和奇模阻抗获得，并使用单个微带线几何形状作为中间步骤。结果以图形形式呈现，只使用两个通用的曲线族。计算结果以简单公式的形式给出，并与实际结果进行了比较。
Although graphical results and formulas are available for the design of microstrip couplers, the design procedure is hampered because even- and odd-mode impedances are always expressed in terms of the physical geometry. In practice the designer obtains these impedances and then requires to know the geometry given by them. A new design procedure for coupled parallel microstrip lines is therefore presented. The technique enables the geometry of the coupled lines to be obtained directly from the required even- and odd-mode impedances and uses single microstrip-line geometry as an intermediate step. The results are presented in graphical form using only two universal families of curves. Results are also presented in the form of simple formulas for design programs and also comparisons with practical results are made.