Title :
A 75.7GHz to 102GHz rotary-traveling-wave VCO by tunable composite right /left hand T-line
Author :
Shunli Ma ; Wei Fei ; Hao Yu ; Junyan Ren
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
With the use of tunable composite-right/left-hand (CRLH) transmission line (T-line), this paper provides a wide frequency-tuning-range (FTR) mechanism for Mobius-ring rotary-traveling-wave (RTW) VCO in millimeter-wave region. CRLH T-line is implemented in RTW-VCO with inductor-loaded transformer to realize sub-band selection over a wide FTR. Each sub-band is further covered by a varactor for fine-tuning. The chip was fabricated in GF 65nm RF-CMOS process with area of 0.08mm2. The measured results show a current consumption of 14mA under supply voltage of 1V, a tuning range of 29.5% with center frequency at 89.3GHz, and a phase noise from -100.08dBc/Hz to -98.7dBc/Hz with 10MHz offset. A state-of-art figure-of-merit FOMT of -177.78dBc/Hz is demonstrated.
Keywords :
CMOS integrated circuits; MMIC oscillators; integrated circuit manufacture; millimetre wave oscillators; varactors; voltage-controlled oscillators; Mobius-ring rotary-traveling-wave VCO; RF-CMOS process; current 14 mA; figure-of-merit; frequency 10 MHz; frequency 75.7 GHz to 102 GHz; frequency-tuning-range mechanism; inductor-loaded transformer; size 65 nm; tunable composite-right/left-hand transmission line; varactor; voltage 1 V; voltage-controlled oscillators; CMOS integrated circuits; Frequency measurement; Phase noise; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2013 IEEE
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2013.6658412
