A 5.5-to-8.2GHz Class-F<sub>23</sub> Quad-Core-Oscillator Achieving 191.1dBc/Hz FoM in 28nm CMOS
In this paper, a three-winding transformer-based Class-F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">23</inf> Quad-Core VCO is proposed. By using a three-winding transformer, the common-mode (CM) resonances around the second harmonic and the differential-mode (DM) resonances around the third harmonic are extended while maintaining the operation of Class- F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">23</inf> VCO. Fabricated in a 28-nm CMOS process, the continuous tuning range of the proposed VCO is 39.4%, from 5.5 to 8.2 GHz. The minimum phase noise is −135.1 dBc/Hz at the 1MHz offset of 5.5GHz, corresponding to the VCO figure of merit (FoM) of 191.1 dBc/Hz. The 1/f<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> phase noise corner is 180 to 230 kHz over the tuning range.
Authors
- Jinhai Xiao (ORCID: https://orcid.org/0009-0009-5560-8041)
- Jianbo Zhang (ORCID: https://orcid.org/0000-0003-3526-4586)
- Maliang Liu (ORCID: https://orcid.org/0000-0003-3181-3277)
- Yintang Yang (ORCID: https://orcid.org/0000-0001-9745-5404)
Institutions
- Xidian University (CN)
Publication Details
- Published
- 2024-09-20
- DOI
- https://doi.org/10.1109/iccs62517.2024.10846286
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00