Title :
A K-band Gm-boosting differential Colpitts VCO in 0.18-μm CMOS
Author :
Sen Wang ; Wen-Jie Lin
Author_Institution :
Grad. Inst. of Comput. & Commun. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan
Abstract :
A modified K-band differential Colpitts voltage-controlled oscillator (VCO) which uses gm-boosting and capacitive filtering techniques to improve the performance of phase noise is proposed. The VCO achieves a good phase noise of-108.19 dBc/Hz at 1-MHz offset frequency, and the chip size is merely 0.27 mm2. The dc power consumption is 32 mW from a 2.2-V power supply. Compared with the previously published K-band VCOs, the proposed Colpitts VCO exhibits a superior phase noise characteristic and a highest FOM.
Keywords :
CMOS analogue integrated circuits; MMIC oscillators; field effect MMIC; low-power electronics; phase noise; voltage-controlled oscillators; CMOS technology; K-band gm-boosting differential Colpitts VCO; capacitive filtering techniques; dc power consumption; phase noise; power 32 mW; size 0.18 mum; voltage 2.2 V; voltage-controlled oscillator; CMOS integrated circuits; Filtering; K-band; Phase noise; Varactors; Voltage-controlled oscillators; CMOS; Gm-boosting; K-band; differential Colpitts VCO;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6695022
