Fully integrated low phase noise VCO design in SiGe BiCMOS technology

Fully integrated voltage controlled oscillator (VCO) designs with low phase noise targeted for cellular communication in SiGe (silicon germanium) BiCMOS technology are discussed. The advantages of using IBM SiGe BiCMOS technology for fully integrated VCO designs are addressed in detail. Three fully integrated VCOs for wireless handset applications are reported with design approaches and testing results.