Title :
A 60GHz VCO with 25.8% tuning range by switching return-path in 65nm CMOS
Author :
Wei Fei ; Hao Yu ; Kiat Seng Yeo ; Wei Meng Lim
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper presents a novel inductive tuning method for 60GHz voltage controlled oscillator (VCO) design. A new inductor-loaded transformer is proposed by configuring different current return-paths in the secondary coil of a transformer. Different from published inductive tuning methods, the proposed topology can achieve a multi-band, wide tuning range within compact area using only one transformer. A 60GHz VCO is implemented at 65nm CMOS process for demonstration. The obtained oscillation frequency can vary from 51.9GHz to 67.3GHz, which covers the full 60GHz band and provides a wide frequency tuning range of 25.8%.
Keywords :
CMOS analogue integrated circuits; field effect MIMIC; millimetre wave oscillators; transformers; voltage-controlled oscillators; CMOS process; VCO design; current return-paths; frequency 51.9 GHz to 67.3 GHz; inductor-loaded transformer; published inductive tuning methods; secondary coil; size 65 nm; switching return-path; voltage controlled oscillator design;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian
Conference_Location :
Kobe
DOI :
10.1109/IPEC.2012.6522679
