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.