Design of Low-Phase-Noise Low-Phase-Error CMOS Quadrature VCO

Author

Gao, Hui ; Lu, Zhi-Qiang ; Lai, Feng-Chang

Author_Institution

Harbin Inst. of Technol., Harbin

fYear

2007

fDate

18-21 April 2007

Firstpage

1

Lastpage

4

Abstract

Two 2.4 GHz LC quadrature voltage-controlled oscillators (QVCO) are designed. The advantages of the QVCO topologies are the characteristics of rather low phase error, while comparable phase noise is achieved. Phase noise of the two QVCOs are compared and analyzed. Simulation results show that phase noise improves 6.3 dBc/Hz in a so-called PS-QVCO (PMOS-serial-coupled QVCO) compared to NS-QVCO (NMOS- serial-coupled QVCO). The PS-QVCO shows the phase noise of -115.4 dBc/Hz at 600 KHz offset, while dissipating only 2.9 mW for the whole QVCO. The phase error between I and Q signals is at most 0.19deg.

Keywords

UHF oscillators; network synthesis; phase noise; voltage-controlled oscillators; LC quadrature voltage-controlled oscillators; NMOS- serial-coupled QVCO; NS-QVCO; PMOS-serial-coupled QVCO; PS-QVCO; QVCO; frequency 2.4 GHz; frequency 600 kHz; phase noise; power 2.9 mW; CMOS technology; Circuit simulation; Circuit synthesis; Energy consumption; Frequency; Inductors; Local oscillators; Low-frequency noise; Phase noise; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on

Conference_Location

Builin

Print_ISBN

1-4244-1049-5

Electronic_ISBN

1-4244-1049-5

Type

conf

DOI

10.1109/ICMMT.2007.381468

Filename

4266227