On grounded co-planar waveguides as interconnects for 10Gb/s signals

The paper presents an investigation of the use of grounded coplanar waveguide (GCPW) from a signal integrity and electromagnetic radiation point of view. This transmission line structure has proved to be an ideal choice as the interconnect for the transportation of 10 Gbps or faster electrical signals on digital high-speed printed circuit boards and in high-speed connectors. While its use in microwave circuits has been well understood, a systematic investigation of its use as a high speed interconnects has not been reported. This paper presents a complete analysis and design guidelines for the implementation of grounded coplanar waveguides as high-speed interconnects for 10 Gbps signals.