A 24.6-32.5 GHz Millimeter-wave Frequency Synthesizer for 5G Wireless and 60 GHz Applications

This paper presents a millimeter-wave frequency synthesizer for the 5G millimeter-wave and 60 GHz wireless applications. The proposed fractional -N frequency synthesizer covers frequencies from 24.6 GHz to 32.5 GHz with frequency tuning range (FTR) of 27.7 % with individual VCOs for 5G wireless and 60 GHz frequency bands. The frequency synthesizer occupies an area of 2.65 mm x 2.25 mm including the bondpads and has a phase noise of-101.8 dBc/ at 1 MHz offset from 25.3 GHz carrier frequency. The synthesizer consumes a dc power of 105 mW from a 1.8 V supply voltage including the LO chain.