References:
1. Mansour, M., Zekry, A., K. Ali M., et al. "A comparative study between Class-C and Class-B quadrature voltage-controlled power oscillator for multi-standard applications", Microelectronics Journal, 98, 104726 (April 2020). DOI: 10.1016/j.mejo.2020.104726.
2. Hegazi, E., Sjoland, H., and Abidi, A. "A filtering technique to lower LC oscillator phase noise", IEEE Journal of Solid-State Circuits, 36(12), pp. 1730-1740 (July 2013). DOI: 10.1109/4.972142.
3. Teymoori, H., Fotowat Ahmady, A., and Nabavi, A. "A new low phase noise LC-tank CMOS cascode Crosscoupled oscillator", IEEE J. Iranian Conference on Electrical Engineering (May 2010). DOI: 10.1109/IRANIANCEE. 2010.5507039.
4. Okada, K., Nomiyama, Y., Murakami, R., et al. "A 0.114-mW dual-conduction class-C CMOS VCO with 0.2-V power supply", Symposium on VLSI Circuits, (June 2009).
5. Fanori, L., Liscidini, A., and Andreani, P. "A 6.7-to-9.2GHz 55nm CMOS hybrid class-B/class- C cellular TX VCO", IEEE International Solid- State Circuits Conference (February 2012). DOI: 10.1109/ISSCC.2012.6177049.
6. Lim, C., Ramiah, H., Yin, J., et al. "A 5.1-to-7.3 mW, 2.4-to-5 GHz Class-C Mode-Switching Single- Ended-Complementary VCO Achieving > 190 dBc/Hz FoM", IEEE Transactions on Circuits and Systems II: Express Briefs, 66(2), pp. 237-241 (June 2018). DOI: 10.1109/TCSII.2018.2848301.
7. Sheikhahmadi, S., Moezzi, M., and Ghafoorifard, H. "A low phase noise class C oscillator with improved resonator and robust start-up", IEEE Transactions on Circuits and Systems II: Express Briefs, 68(1), pp. 92-96 (June 2020). DOI: 10.1109/TCSII.2020.3005251.
8. Cheng, X., Chen, F., Xia, X., et al. "A modified darlington-based class C VCO with simultaneous optimization of phase noise/FoM in GaAs technology", IEEE Microwave and Wireless Components Letters, 30(5), pp. 500-503 (April 2020). DOI:
10.1109/LMWC.2020.2983845.
9. Shasidharan, P., Ramiah, H., and Rajendran, J. "A 2.2 to 2.9 GHz complementary class C VCO with PMOS tail-current source feedback achieving-120 dBc/Hz phase noise at 1 MHz offset", IEEE Access, 7, pp. 91325-91336 (July 2019). DOI: 10.1109/ACCESS. 2019.2927031.
10. Martins, R., Lourenco, N., Horta, N., et al. "Manyobjective sizing optimization of a Class C/D VCO for ultralow-power IoT and ultralow-phase-noise cellular applications", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 27(1), pp. 69-82 (October 2018). DOI: 10.1109/TVLSI.2018.2872410.
11. Deng, W., Okada, K., and Matsuzava, A. "A feedback class-C VCO with robust start-up condition and enhanced oscillation swing", Proceedings of the ESSCIRC (September 2011). DOI: 10.1109/ESSCIRC. 2011.6044931.
12. Chen, J., Jonsson, F., Calrsson, M., et al. "A low power, startup ensured and constant amplitude class C VCO in 0.18mCMOS", IEEE Microwave and Wireless Components Latters, 21(8), pp. 427-429 (July 2011). DOI: 10.1109/LMWC.2011.2160620.
13. Jang, S. and Wang, J. "Low-phase noise class-C VCO with dynamic body bias", Electronics Letters, 53, (May 2017). DOI: 10.1109/ISNE.2017.7968734.
14. Fanori, L. and Andreani, P. "Low-phase-noise 3.4-4.5 GHz dynamic-bias class-C CMOS VCOs with a FoM of 191 dBc/Hz", Proceedings of the ESSCIRC, (September 2012). DOI: 10.1109/ESSCIRC.2012.6341341.
15. Thakkar, A., Theertham, S., Mirajkar, P., et al. "A 3.9-4.5 GHz class-C VCO with accurate current injection based on capacitive feedback", 12th European Microwave Integrated Circuits Conference (Eu- MIC), pp. 224-227 (October 2017). DOI: 10.23919/Eu- MIC.2017.8230700.
16. Liao, X. and Liu, L. "A low-voltage robust Class- C VCO with dual digital feedback loops", IEEE Transactions on Circuits and Systems II: Express Briefs, 67(11), pp. 2347-2351 (February 2020). DOI: 10.1109/TCSII.2020.2977145.
17. Lee, J.-Y, Kim, G.S., Ko, G.-H., et al. "Low phase noise and wide-range class-C VCO using auto-adaptive bias technique", Electronics, 9, 1290 (2020). DOI: 10.3390/electronics9081290.
18. Wu, T., Moon, U., and Mayaram, K. "Dependence of LC VCO oscillation frequency on bias current", IEEE International Symposium on Circuits and Systems (May 2006). DOI: 10.1109/ISCAS.2006.1693764.
19. Bhat, A. and Krishnapura, N. "A tail-resonance calibration technique for wide tuning range LC VCOs", IEEE International Symposium on Circuits and Systems (May 2016). DOI: 10.1109/ISCAS.2016.7538986.
20. Nikpaik, A. and Nabavi, A. "Analysis of flicker noise conversion to phase noise in CMOS differential LC oscillators", International Journal of Circuit Theoryand Applications, 44, pp. 398-418 (April 2015). DOI: 10.1002/cta.2083.
21. Mazzanti, A. and Andreani, P. "Class-C harmonic CMOS VCOs, with a general result on phase noise", IEEE Journal of Solid-State Circuits, 43(12), pp. 2716-2729 (December 2008). DOI: 10.1109/JSSC.2008.2004867.
22. Fanori, L. and Andreani, P. "Highly ecient class-C CMOS VCOs, including a comparison with class-B VCOs", IEEE Journal of Solid-State Circuits, 48(7), pp. 1921-1930 (December 2001). DOI: 10.1109/JSSC.2013.2253402.
23. Lee, T. and Hajimiri, A. "Oscillator phase noise: a tutorial", IEEE Journal of Solid-State Circuits, 35(3), pp. 326-336 (March 2000). DOI: 10.1109/CICC.1999.777309.
24. Groszkowski, J. "The interdependence of frequency variation and harmonic content, and the problem of constant-frequency oscillators", Proceedings Of the IRE, 21(7), pp. 958-981 (1993). DOI: 10.1109/JRPROC. 1933.227821.