Abstract
Effects of manufacturing tolerances in the dimensions and parameters of suspended and inverted microstrip lines on the electrical performance of these lines have been studied through sensitivity analysis. The closed-form expressions recently given by Pramanick and Bhartia for the analysis of these lines have been used to derive the mathematical expressions for various sensitivities and the dependence of sensitivities on the aspect ratios and on the substrate dielectric constant has been depicted graphically. Generally speaking, the effects of tolerances are seen to be reflected much more sharply in the sensitivities of the characteristic impedance than in those of the effective dielectric constant. Many other useful inferences are also drawn from the sensitivity graphs. The conclusions are presented in tabular form, so as to be of direct help to the user.
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Tomar, R.S., Bhartia, P. Effects of manufacturing tolerances on the electrical performance of suspended and inverted microstrip lines. Int J Infrared Milli Waves 6, 807–829 (1985). https://doi.org/10.1007/BF01013292
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DOI: https://doi.org/10.1007/BF01013292