Title :
A 195.6dBc/Hz peak FoM P-N class-B oscillator with transformer-based tail filtering
Author :
Garampazzi, Marco ; Mendes, Paulo ; Codega, Nicola ; Manstretta, Danilo ; Castello, Rinaldo
Author_Institution :
Univ. degli Studi di Pavia, Pavia, Italy
Abstract :
A complementary p-n class-B oscillator with two magnetically coupled second harmonic tail resonators is presented. For the same oscillation amplitude (constrained by reliability considerations) and the same tank, the p-n oscillator achieves 3-4dB better Figure of Merit (FoM) than an n-only reference one. After frequency division by 2, the p-n oscillator has a measured phase noise that ranges from -150.8 to -151.5 dBc/Hz at 10MHz offset from the carrier when the frequency of oscillation is varied from 3.64 to 4.15GHz. With a power consumption of 6.3mW, a peak FoM of 195.6 dBc/Hz is achieved.
Keywords :
LC circuits; filters; harmonic analysis; microwave oscillators; phase noise; power consumption; resonators; transformers; complimentary peak FoM P-N class-B oscillator; figure of merit; frequency 3.64 GHz to 4.15 GHz; frequency division; oscillation amplitude; phase noise measurement; power 6.3 mW; power consumption; tank; transformer-based tail filtering; two magnetically coupled second harmonic tail resonators; CMOS integrated circuits; CMOS technology; Phase noise; Topology; Transistors;
Conference_Titel :
European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 - 40th
Conference_Location :
Venice Lido
Print_ISBN :
978-1-4799-5694-4
DOI :
10.1109/ESSCIRC.2014.6942089
