High quality factor mm-wave coplanar strip resonator based on split ring resonators

Coplanar strips (CPS) have the advantage of higher level of integration and a balanced structure that have favorable features for integrated voltage controlled oscillators and low noise and power amplifiers. Based on split ring resonator´s (SRRs) rejection and phase shift properties around their resonance, a high quality factor composite right/left handed (CRLH) coplanar strips resonator is designed to operate in mm-wave regime at 60 GHz. Using this structure, a 52% improvement is achieved in comparison with an optimized conventional CPS resonator designed in a 90 nm CMOS process.