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本文延伸文献[2]关于通用参数滤波的概念,得出有关电抗二端对网络在两侧都端接阻抗(非Foster正实函数形式)情况下的频率特性逼近的一般性理论。 文中导出了一系列的新公式,并阐述了具体的逼近方法。 如果采用本文的理论并结合文献[1]来设计两侧都端接阻抗的电抗二端对网络,可大大扩大其实际应用范围;同时,如果应用于宽带匹配网络设计,则可免除求解中有时会遇到的许多困难。 本文的结果具有普遍意义,可应用于不少领域,例如LC和微波网络等方面。以前有关电抗二端对网络频率特性逼近的理论,都属于本文的特殊情况。
This paper extends [2] the general concept of general parametric filtering to arrive at a general theory of the approximation of the frequency characteristics of a reactance end-to-end impedance (non-Foster positive real function form) on both sides of the network. In this paper, a series of new formulas are derived and the specific approximation methods are expounded. If we use the theory of this paper and the literature [1] to design a two-terminal reactive impedance network with terminating impedance on both sides, it can greatly expand its practical application range; at the same time, if used in broadband matching network design, Many difficulties will be encountered. The results of this paper have universal significance and can be applied to many fields, such as LC and microwave networks. In the past, the theory of the reactance of two ends to the network frequency characteristics are approximate, all belong to the special case of this article.