Nonlinear UHF quartz MEMS oscillator with phase noise reduction

Author

Chang, D.T. ; Moyer, H.P. ; Nagele, R.G. ; Kubena, R.L. ; Joyce, R.J. ; Kirby, D.J. ; Brewer, Peter D. ; Nguyen, Hieu D. ; Stratton, F.P.

Author_Institution

HRL Labs. LLC, Malibu, CA, USA

fYear

2013

fDate

20-24 Jan. 2013

Firstpage

781

Lastpage

784

Abstract

Stable local oscillators with low phase noise are extremely important elements in high performance communication and navigation systems. We present the development of compact UHF-band frequency sources capable of maintaining low phase noise for handheld portable systems. We also explored nonlinearity in MEMS resonators and attempted to use nonlinear dynamics to enhance phase noise performance. Using the quartz MEMS technology, we have thus far demonstrated a 635 MHz oscillator with -112 dBc/Hz phase noise at 1 kHz offset frequency. The controlled oscillation of this nonlinear Duffing resonator in a closed-loop system with improved phase noise is described.

Keywords

UHF oscillators; UHF resonators; closed loop systems; control nonlinearities; crystal resonators; micromechanical resonators; nonlinear control systems; phase noise; MEMS resonators; closed-loop system; compact UHF-band frequency sources; frequency 1 kHz; frequency 635 MHz; handheld portable systems; high performance communication; low phase noise; navigation systems; nonlinear Duffing resonator oscillation control; nonlinear UHF quartz MEMS oscillator; nonlinear dynamics; phase noise performance; phase noise reduction; quartz MEMS technology; stable local oscillators; Current measurement; Micromechanical devices; Optical resonators; Phase noise; Resonant frequency; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro Electro Mechanical Systems (MEMS), 2013 IEEE 26th International Conference on

Conference_Location

Taipei

ISSN

1084-6999

Print_ISBN

978-1-4673-5654-1

Type

conf

DOI

10.1109/MEMSYS.2013.6474359

Filename

6474359