Model of Thin-Film Microstrip Line for Circuit Design

Published in:
IEEE Trans. Microwave Theory Tech., vol. 49, no. 1, pp. 104-110 (2001).
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Abstract:
An equivalent-circuit model for the thin-film microstrip line (TFMSL) is presented in this paper. Its elements are calculated using closed-form expressions and, thus, this model can easily be implemented in common circuit design tools. For typical TFMSL dimensions, it holds from dc up to the submillimeter-wave frequency range. The model is validated by comparison to electromagnetic full-wave simulation data. Typical errors of phase constant and characteristic impedance are below 2% and 3%, respectively. Regarding attenuation, deviations below 8% are found.

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