Distributed and lumped RC realizations of a constant argument impedance

Dutta Roy, Suhash C. ; Shenoi, B. A. (1966) Distributed and lumped RC realizations of a constant argument impedance Journal of the Franklin Institute, 282 (5). pp. 318-329. ISSN 0016-0032

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0016-0032(66)90260-2


The driving-point properties of the distributed RC (RC̅) network are utilized for realizing an impedance approximating over a wide frequency range ω0< ω, where ω0 depends on the parameters of the RC̅ network and those of the terminating impedance. We show that with suitable termination, the value of ω0 can be reduced by a factor of ten from the value for open or short-circuit conditions. Thin film or semiconductor realization is possible for the resulting networks, but they can also be approximated by combinations of lumped R's and C's. Two types of lumped-element approximations are suggested: one employs a finite ladder to approximate the three-terminal ω0 network while the other is based on truncation of the partial-fraction expansion of the two terminal ω0 impedances. It is found that the former type of structure gives better results than the latter type.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:92307
Deposited On:29 May 2012 13:58
Last Modified:29 May 2012 13:58

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