A 30-GHz Low-Phase-Noise 0.35-μm CMOS Push-Push Oscillator Using Micromachined Inductors

Author

Wang, To-Po ; Liu, Ren-Chieh ; Chang, Hong-Yeh ; Tsai, Jeng-Han ; Lu, Liang-Hung ; Wang, Huei

Author_Institution

Graduate Inst. of Commun., Nat. Taiwan Univ., Taipei

fYear

2006

fDate

11-16 June 2006

Firstpage

569

Lastpage

572

Abstract

A low-phase-noise 0.35-mum CMOS push-push oscillator utilizing micromachined inductors is presented in this paper. With the micromachined high-Q inductors, the oscillator achieves an oscillating frequency of 30.9 GHz while exhibiting an output power of -4 dBm with a low phase noise of -102.3 dBc/Hz at 1-MHz offset and the figure of merit (FoM) of -171.4 dBc/Hz. The fundamental rejection is 30 dB. This oscillator achieves low phase noise, good FOM, high output power, and also demonstrates the highest operating frequency among previously published Si-based and GaAs-based VCOs using micromachined structures

Keywords

CMOS integrated circuits; MMIC oscillators; inductors; integrated circuit noise; micromachining; phase noise; voltage-controlled oscillators; 0.35 micron; 30 GHz; CMOS push-push oscillator; low-phase-noise; micromachined inductors; voltage-controlled oscillators; CMOS process; CMOS technology; Circuits; Etching; Frequency; Inductors; MIM capacitors; Phase noise; Power generation; Voltage-controlled oscillators; Micromachined inductors; voltage-controlled oscillators (VCOs);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249657

Filename

4014963