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A new broad-band scalable spiral inductor model incorporating skin effect, substrate loss, and proximity effect is presented. The construction of the lumped element model using analytic expressions is described and the model is validated with data from multiple technologies. Extensions to differential inductors with measured validation is also provided.

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Pattern ground shield inductors have been shown to improve the performance of on-chip inductors by reducing the impact of the resistive substrate. This paper optimizes these inductors by separating the capacitive component and inductive component. The trade-offs are characterized and modeled. An optimized design is developed to improve the performance of a voltage controlled oscillator using a switched capacitor architecture.

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