Title :
Ultra-low-voltage mixer and VCO in 0.18-μm CMOS
Author :
Hsieh, Hsieh-Hung ; Chung, Kuo-Sheng ; Lu, Liang-Hung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Ultra-low-voltage techniques for RF frontend circuits are presented in this paper. Using a standard 0.18-μm CMOS technology, a down-conversion mixer and a voltage-controlled oscillator were designed and fabricated for 5-GHz wireless applications. With a 5.2-GHz RF signal, the mixer has a conversion gain of 3 dB, while the VCO exhibits a tuning range of 8.9% and a phase noise of -97 dBc/Hz at 1-MHz offset. Both circuits operate at a reduced supply voltage of 0.6 V. The power consumptions of the mixer and the VCO are 792 and 696 μW, respectively.
Keywords :
CMOS analogue integrated circuits; MMIC mixers; MMIC oscillators; circuit tuning; low-power electronics; phase noise; voltage-controlled oscillators; 0.18 micron; 0.6 V; 3 dB; 5 GHz; 5.2 GHz; 696 muW; 792 muW; CMOS; RF frontend circuits; conversion gain; down-conversion mixer; phase noise; tuning range; ultra-low-power VCO; ultra-low-voltage mixer; voltage-controlled oscillator; CMOS technology; Circuit topology; Energy consumption; Frequency conversion; MOSFETs; Mixers; Power supplies; Radio frequency; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489620
