Design of coplanar waveguide multilayer square spiral inductors for monolithic microwave integrated circuits
A square indicator using multilayer coplanar waveguide transmission lines on a GaAs fabricated by using monolithic microwave integrated circuits (MMIC) technology is presented. The polyimide layer formation, curing and dry etching processes are used in an attempt to obtain high quality dielectric layers suitable for MMIC applications. The experimental fabrication progress provides two metal layers with two polyimide spacer dielectric layers. A brief overview of the electromagnetic design process is included. The performance of the proposed spiral inductor is investigated experimentally and with electromagnetic simulations (Sonnet em) up to 20 GHz using RF-on mater measurements. A very good agreement is achieved, despite the highly three-dimensional nature of the structure. (C) 1999 John Wiley & Sons, Inc.
inductors monolithic microwave integrated circuits transmission lines