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In this article we take into account the influence of the superconducting nature of the strip in order to study the behavior of the superconducting microstrip line by means of two numerical methods. The first one is the spectral domain approach modified by the surface impedance concept and the second one is the modified mode‐matching technique. This last one allows more accurate simulation of the presence of the superconducting strip without using surface impedance approximation. In a second step we present the corrections brought to the modified SDA in order to obtain accurate results by this more versatile numerical method, which consumes small amounts of CPU time.
Transmission line properties of on-chip wiring need to be taken into account due to the great lengths and fast rise times encountered. As the line lengths and circuit speeds increase, the wavelength decreases, and the distributed n-section RC representation will be no longer adequate to analyse signal integrity. With these trends it is becoming more important to include inductance when modeling on-chip interconnect. The electrical phenomena that have to be investigated are governed by the electromagnetic theory.We present first in this paper an efficient and accurate modeling and simulation technique of frequency-dependent transmission lines to determine interconnection characteristics. The electromagnetic approach is then used to determine the limits where effects such as signal reflections can be predicted. The theoretical limits calculated are then illustrated.
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