An efficient modeling technique and a novel CAD tool for the accurate prediction of the performance of integrated inductors and transformers is presented. This generic and process-independent approach generates lumped-element models that easily plug into the RF IC design flow. Their accuracy is established through comparisons with measurements of numerous fabricated inductor structures. This paper intends to provide answers to vital questions in regard to existing limits and future expectations of the performance of on-chip inductors using comprehensive nomographs and quantitative analysis of spiral inductor families. A LNA design paradigm depicts how first-time-working silicon can be achieved when on-chip inductors' coupling is taken into account during the layout design process, minimizing risk, time, and cost.

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Abstract-A novel computational method based on full-wave analysis of stripline planar structures with vertical interconnects in multilayer dielectric media is presented. The method is based on the electric-field integral-equation solved with the Method of Moments (MoM). The special characteristics of stripline structures facilitate the extensive use of semi-analytical techniques to analyze the multilayer structures, limiting significantly the use of purely numerical techniques. The accuracy of the proposed modeling method is examined thoroughly with extensive numerical tests and the results are compared with results generated by commercial simulators for simple stripline structures.

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