Title :
A 60 GHz CMOS combined mm-wave VCO/divider with 10-GHz tuning range
Author :
Çatli, Burak ; Hella, Mona M.
Author_Institution :
Electr., Comput., & Syst. Eng. Dept., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
This paper proposes the use of N-push operation for combining the functions of the VCO and dividers in the mm-wave frequency range. If employed in a PLL, the combined VCO/divider (C-VCO/D) would potentially provide wider tuning range than traditional mm-wave PLLs employing injection locked frequency dividers, thus exploiting the full range available in the 60 GHz band (57 GHz-64 GHz). The C-VCO/D is fabricated in 130 nm IBM CMOS technology and achieves a tuning range from 55 GHz-65 GHz using a VDD =1.5 V, Icore = 20 mA, and Ibuffer = 15 mA. The C-VCO/D has a phase noise of 97.1 dBc/Hz at 1 MHz Offset.
Keywords :
CMOS integrated circuits; circuit tuning; field effect MIMIC; frequency dividers; integrated circuit noise; millimetre wave oscillators; phase locked loops; voltage-controlled oscillators; CMOS combined mm-wave VCO function; N-push operation; VCO-D fabrication; circuit tuning; current 15 mA; current 20 mA; frequency 55 GHz to 65 GHz; injection locked frequency divider; phase locked loops; phase noise; size 130 nm; voltage 1.5 V; Bandwidth; CMOS technology; Frequency conversion; Inductors; Phase locked loops; Phase noise; Q factor; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits Conference, 2009. CICC '09. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-4071-9
Electronic_ISBN :
978-1-4244-4073-3
DOI :
10.1109/CICC.2009.5280753
