Monolithic microwave integrated circuit voltage controlled harmonic oscillator with isolation amplifiers

摘要

A microwave voltage controlled oscillator (12) and isolation amplifiers (14, 16) are formed as a monolithic circuit on a single GaAs substrate. Only a single external inductor (34) is required to set the oscillation frequency. Optionally, an external resonator (38) may be used instead of an inductor. Off-chip active bias control (LIMin, 18) is provided for convenient frequency tuning.