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过去几年,对集总元件环行器进行了大量的设计试验工作,可以这么说,它是比较成熟的一种器件,但在理论上缺乏完整性和系统性,在理论与实践的比较上,尚存在一些差距。根据上述两点不足,本文初步地弥补这些不足。第一,采用本征值的信流图方法,求出各种集总元件环行器的本征值,又根据本征值的特性,提出如何利用阻抗(或导纳)圆图来选择环行器的电参数;第二,电感线之间的交叠电容是影响集总元件环行器的理论与实践差别的主要原因,本文通过实际例子来进行误差修正,从而得到比较确切的设计方法。
In the past few years, a great deal of design and experiment work has been done on the lumped element circulator. So to speak, it is a relatively mature device, but in theory it lacks completeness and systematicness. In comparison with theory and practice, There are still some gaps. Based on the above two deficiencies, this paper initially make up for these deficiencies. First, the eigenvalue method of flow graph is used to find the eigenvalues of various lumped element circulators. According to the characteristics of eigenvalues, how to use the impedance (or admittance) diagram to choose the circulator The second is that the overlap capacitance between the inductor lines is the main reason that influences the difference between theory and practice of the lumped element circulator. In this paper, the error correction is carried out through the practical examples to get a more accurate design method.