@inproceedings{0652abf16cba448aa488ed2845133bc3,
title = "Sub-THz Switch-less Reconfigurable Triple-/Push-push Dual-band VCO for 6G Communication",
abstract = "This work presents a novel switch-less reconfigurable triple-/push-push dual-band VCO topology and design methods for a W-band metal-oxide-semiconductor (CMOS) voltage-controlled oscillator (VCO). A clover-shaped inductor with a three-port connection and single frequency multiplied output port configuration provides switch-less mode changes between triple-push and push-push operation. This topology is demonstrated in a W-band VCO by controlling three cores with a measured phase noise of-109.17 dBc/Hz at a 10-MHz offset of a 105.3 GHz carrier. The measured center frequency of each band is 91.04 GHz and 102.33 GHz with a tuning range of 10.4\% and 14.1 \%, respectively. The proposed VCO with independent core on/off state control enables low parasitic switch-less frequency band shift resulting in a superior tuning range compared to those of conventional dual-/single-band VCOs. The effectiveness of this approach is demonstrated through fabrication in a 28-nm CMOS process, with the best FOMT being-174.4 dBc/Hz in this case.",
keywords = "dual-band, reconfigurable oscillator, sub terahertz, switch-less, voltage-controlled oscillator",
author = "Seongwoog Oh and Jinhyun Kim and Jungsuek Oh",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022 ; Conference date: 19-06-2022 Through 21-06-2022",
year = "2022",
doi = "10.1109/RFIC54546.2022.9863159",
language = "English",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "219--222",
booktitle = "2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022",
address = "United States",
}