Simplified parameter extraction method for modeling on-chip spiral inductors

Abstract

This paper presents a simplified parameter extraction method for modeling on-chip spiral inductors. Our method bypasses time-consuming numerical optimization and is simpler than previous parameter extraction procedure. The parameters of the spiral inductor model can be extracted simply and directly without involving complicated formulas. It is also found that the extracted parameters are more accurate especially in the substrate lateral coupling elements. The extracted model shows excellent agreement between simulation and measurement over the frequency range of interest. With its simplicity and accuracy, the simplified parameter extraction method herein will find usefulness in the modeling and design of spiral inductors for radio frequency integrated circuits.