Title :
A 1.2V low-power CMOS voltage-controlled oscillator (VCO) using current-reused configuration with balanced resistors for IEEE 802.16e
Author :
Wang, Ruey-Lue ; Yen, Hsuan-Der ; Yeh, Wen-Kuan ; Shie, Yi-Jiue
Author_Institution :
Dept. of Microelectron. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan
Abstract :
In this paper, a 1.2 V low-power CMOS current-reused voltage-controlled oscillator (VCO) for IEEE 802.16e is presented. Two drain resistors are used to improve magnitude symmetry of output signals. The design is based on the TSMC 0.18 ¿m mixed signal/RF process. The output frequencies range from 2.39 GHz to 2.21 GHz with the controlled voltage from 0 V to 1.2 V. The measured output power is -4.2 dBm and phase-noise is -121 dBc/Hz at 1-MHz offset frequency. The power consumption of the VCO with buffer included is only 3.96 mW at 1.2 V voltage supply.
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF oscillators; WiMax; low-power electronics; voltage-controlled oscillators; CMOS voltage-controlled oscillator; IEEE 802.16e; UHF integrated circuits; UHF oscillators; WiMax; current-reused configuration; drain resistors; frequency 2.21 GHz to 2.39 GHz; magnitude symmetry; power 3.96 mW; size 0.18 mum; voltage 1.2 V; Frequency measurement; Phase measurement; Power measurement; RF signals; Radio frequency; Resistors; Signal design; Signal processing; Voltage control; Voltage-controlled oscillators; CMOS; VCO; WiMAX; buffer; current reused; low-power; phase noise;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734863
