Various configurations (Colpitts, Pierce, Clapp etc) are described in literature [Ref(1)]. Depending on the frequency requirements, various devices like MESFETs, pHEMTs, and HBTs can be used for VCO ...
http://www.agilent.com/find/eesofMonolithic microwave integrated circuits (MMICs) were born out of the need for high-performing wireless designs for military and ...