Title :
Ku-band phase shifter based on injection locked voltage oscillator
Author :
Tseng, Wei-Je ; Tsai, Zuo-Min ; Lin, Chin-Shen ; Wang, Huei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
In this letter, a Ku-band phase shifter based on injection locked voltage control oscillator is designed and fabricated in standard 0.18-μm CMOS technology. The low quality factor LC tank is used to enhance the tuning and locking range, and also minimize the phase noise degradation. The maximum phase shift at 14.84 GHz with -3 dBm input power is 179° and the output power of injection locked VCO is about -8.5 dBm with 0.9-V bias and 14-mW dc power. This feature of large phase shift range over wide bandwidth makes this phase shifter suitable for phased-array applications.
Keywords :
CMOS integrated circuits; Q-factor; circuit noise; circuit tuning; injection locked oscillators; microwave phase shifters; phase noise; voltage-controlled oscillators; CMOS technology; Ku-band phase shifter; frequency 14.84 GHz; injection locked voltage control oscillator; locking range; maximum phase shift; phase noise degradation; phased-array application; power 14 mW; quality factor LC tank; size 0.18 mum; tuning range; voltage 0.9 V; Phase noise; Phase shifters; Power generation; Semiconductor device measurement; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5612270
