Title :
A wide tuning range ring VCO with low phase noise in 90-nm CMOS
Author :
Kuidong Chen ; Zhigong Wang ; Lu Tang
Author_Institution :
Inst. of RF-&OE-ICs, Southeast Univ., Nanjing, China
Abstract :
This paper presents a wide tuning range ring voltage-controlled oscillator (VCO) with low phase noise. This design has successfully expanded the linear tuning range of VCO with a novel delay cell architecture. To improve the high frequency performance, the negative delay technology is introduced. The VCO is implemented in 90-nm CMOS with 1.2 V supply voltage. And the post layout simulation results show that this kind of VCO can operate well in the range from 0.63~13.21GHz with -116dBc/Hz phase noise with 10MHz offset.
Keywords :
CMOS integrated circuits; integrated circuit layout; tuning; voltage-controlled oscillators; CMOS; delay cell architecture; low phase noise; negative delay technology; size 90 nm; voltage 1.2 V; voltage-controlled oscillator; wide tuning range ring VCO; CMOS integrated circuits; Switches; Tuning; high linearity; low phase noise; negative delay; secondary loop; tuning range;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061153
