GaAs Monolithic Wideband VCO for S and C bands

This work presents a GaAs monolithic voltage-controlled oscillator (VCO) for S and C bands. It has enhanced performance in term of both linearity and tunability, providing a wideband solution for modern re-configurable communication systems. The chip has been designed and fabricated with the HB20M technology process provided by UMS Foundry. Measurements show very good results demonstrating the feasibility of the proposed design strategy. The measured tuning range is about 30%; the VCO shows an average sensitivity of about 83 MHz/V with a minimum output power of 11.4 dBm and a phase noise lower of -107 dBc/Hz at 100 kHz of frequency offset from the carrier.