Estudo de uma metodologia de projeto de indutores integrados para RF

Abstract

With the popularization of mobile communications, the demand for practical and efficient wireless communication systems has become a strong trend. To meet these needs, radio frequency (RF) circuits are being built into embedded circuits (ICs), and likewise, passive components such as resistors, capacitors and inductors are also integrated into the IC. Inductors are key elements of any RF circuit. The ability to design this type of component to optimize its integration into IC brings more versatility to developers and manufacturers who can customize the component for specific applications, while not limited to a standardized component library. In this context, this work aims to study a methodology for the development of integrated inductors, since these components are fundamental for the development of integrated solutions of wireless communication systems. In this work we: (I) analyzed the main aspects of an inductor and the most common formats of inductors on chip; (II) analyzed inductance equations and their validity for the design stages; (III) IC construction techniques and the use of computational tools for modeling and simulation of the component; (IV) designed integrated inductors varying parameters such as number of turns, width of turns, spacing between turns and inner or outer diameters. The simulated and calculated values were compared with each other, which showed that the use of equations to help the development of integrated inductors is a good starting point, but computational simulation, through an appropriate simulation tool, is essential for design this type of component .