Title :
A 21-to-54.5GHz transformer-coupled varactorless 45nm CMOS VCO
Author :
Saberi, Shadi ; Paramesh, Jeyanandh
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
A dual-resonance mode millimeter-wave VCO with a transformer-coupled resonator in 45nm SOI CMOS is presented that achieves a record tuning range of 88.5% and generates frequencies in 21.1-to-54.5GHz range while consuming only 8-16mW from a 1V supply. Switched capacitor banks and a switched coupled inductor provide coarse tuning, while fine frequency tuning is performed with current-mode tuning. With phase noise lower than -107dBc/Hz at 10MHz offset, the FOMT of this VCO is better than-185.4 dB.
Keywords :
CMOS analogue integrated circuits; millimetre wave integrated circuits; millimetre wave oscillators; switched capacitor networks; voltage-controlled oscillators; SOI CMOS; coarse tuning; current-mode tuning; dual-resonance mode millimeter-wave VCO; fine frequency tuning; frequency 21 GHz to 54.5 GHz; phase noise; power 8 mW to 16 mW; size 45 nm; switched capacitor banks; switched coupled inductor; transformer-coupled resonator; transformer-coupled varactorless voltage-controlled oscillators; voltage 1 V; CMOS integrated circuits; Mixers; Semiconductor device measurement; Switches; Switching circuits; Voltage-controlled oscillators; CMOS integrated circuits; dual band; millimeter-wave; mutual coupling; phase noise; transformers; voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848586
