An Immitance Based Tool for Modelling Passive One-Port Devices by Means of Darlington Equivalents

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• 作者：B. Siddik Yarman ; Ahmet Aksen ; Ali Kilin&#xe7
• 关键词：Passive Networks ; Immitance Modelling
• 刊名：AEU - International Journal of Electronics and Communications
• 出版年：2001
• 出版时间：2001
• 年：2001
• 卷：55
• 期：6
• 页码：443-451
• 全文大小：14507 K

文摘

An immitance-based method is presented to model measured orcomputed data, obtained from a “passive one-port physical device” by means of its Darlington equivalent. In other words, the given data ismodelled as a lossless two port terminated in a unit resistor. The basis of the new modelling tool rests on the numerical decomposition of the given immitance data into its Foster and minimum parts. Therefore, the proposed technique does not require any choice for the circuit topology to build the model. Rather, the optimum circuit topology that characterises thegiven data is the natural consequence of the modelling process proposed in this paper. A main algorithm is presented to construct the model from the given data. It is expected that the proposed modelling tool will findpractical applications in the behaviour characterisation, simulation, and design of high speed/high frequency analog/digital mobile communication sub-systems manufactured on VLSI chips. An antenna-modelling example is included to systematically exhibit the implementation of the modelling technique.