Title :
A 24 GHz low power VCO with transformer feedback
Author :
Lin, Chieh-An ; Kuo, Jing-Lin ; Lin, Kun-You ; Wang, Huei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A K-band low power VCO fabricated by 0.13 mum CMOS technology is developed. By employing a NMOS cross-coupled pair with a transformer feedback, low phase noise under low dc power condition can be achieved at higher frequency. The VCO exhibits a 2.2 GHz frequency tuning range. The output power and the phase noise at 1 MHz offset are -10 dBm and -113 dBc/Hz, respectively. The dc power consumption is 0.6 V/3 mW. To author´s knowledge, this performance achieves the best FOM in CMOS K-band VCOs.
Keywords :
CMOS analogue integrated circuits; circuit feedback; field effect MMIC; integrated circuit noise; low-power electronics; microwave oscillators; phase noise; transformers; voltage-controlled oscillators; CMOS technology; K-band low power VCO; NMOS cross-coupled pair; dc power consumption; frequency 24 GHz; low dc power condition; low phase noise; size 0.13 mum; transformer feedback; CMOS technology; Energy consumption; Feedback; Frequency; K-band; MOS devices; Phase noise; Power generation; Tuning; Voltage-controlled oscillators; CMOS VCO; LC VCO; Transformer coupled; phase noise;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-3377-3
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2009.5135493
