Title :
Chip Design of 5.1~6 GHz Colpitts QVCO for WIMAX
Author :
Jhin-Fang Huang ; Wen-Cheng Lai ; Yen-Jung Lin
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
A 5.1~6-GHz low-phase noise CMOS quadrature voltage control oscillator(QVCO) is described. Two differential pairs of each resonator have spate biasing transistors which are switched on and off by coupling input of each resonator. The proposed QVCO implemented in a 0.18-um CMOS technology. The QVCO consume 7.56mw. The phase noise of the proposed QVCO is measured to be -121 dBc/Hz at 1-MHZ offset, respectively.
Keywords :
CMOS integrated circuits; WiMax; integrated circuit design; phase noise; resonators; transistors; voltage-controlled oscillators; CMOS technology; Colpitts QVCO; WIMAX; chip design; frequency 1 MHz; low-phase noise CMOS quadrature voltage control oscillator; phase noise; resonator; size 0.18 mum; spate biasing transistor; CMOS integrated circuits; Phase noise; Power demand; Tuning; Voltage-controlled oscillators; WiMAX; Colpitts; VCO; WiMAX; gm-boosting;
Conference_Titel :
Control Engineering and Communication Technology (ICCECT), 2012 International Conference on
Conference_Location :
Liaoning
Print_ISBN :
978-1-4673-4499-9
DOI :
10.1109/ICCECT.2012.69
