Title :
A 1.5-V 4-GHz dynamic-loading regenerative frequency doubler in a 0.35-/spl mu/m CMOS process
Author :
Wong, J.M.C. ; Luong, H.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
This paper proposes a new topology of a frequency doubler using a dynamic-loading technique to achieve higher operating frequency, larger output swing, larger bandwidth and lower phase noise compared to traditional designs. Implemented in a standard 0.35-/spl mu/m digital CMOS process and at a 1.5-V supply, the proposed frequency doubler measures a maximum operating output frequency of 4 GHz with a bandwidth of 2.4 GHz while consuming a power of 3.7 mW. The single-ended output amplitude is ranging from -3.0 to -6.5 dBm, and the phase noise is as low as -111 dBc/Hz @ 500kHz offset.
Keywords :
CMOS digital integrated circuits; MMIC oscillators; field effect MMIC; frequency multipliers; frequency synthesizers; low-power electronics; phase noise; 1.5 V; 2.4 GHz; 3.7 mW; 4 GHz; digital CMOS process; dynamic-loading technique; frequency synthesizer; higher operating frequency; larger bandwidth; larger output swing; lower phase noise; positive feedback; reference frequency; regenerative frequency doubler; single-ended output amplitude; two-stage ring oscillator; wireless communication; Bandwidth; CMOS process; CMOS technology; Circuits; Clocks; Design engineering; Differential amplifiers; Frequency synthesizers; Phase noise; Ring oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2002 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7246-8
DOI :
10.1109/RFIC.2002.1012092
