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Low phase noise array-composite micromechanical wine-glass disk oscillator
| Content Provider | CiteSeerX |
|---|---|
| Author | Lin, Yu-Wei Li, Sheng-Shian Ren, Zeying Nguyen, Clark T. -C. |
| Description | A reduction in phase noise by 13 dB has been obtained over a previous 60-MHz surface-micromachined micromechanical resonator oscillator by replacing the single resonator normally used in such oscillators with a mechanically-coupled array of them to effectively raise the power handling ability of the frequency selective tank. Specifically, a mechanicallycoupled array of nine 60-MHz wine-glass disk resonators embedded in a positive feedback loop with a custom-designed, single-stage, zero-phase-shift sustaining amplifier achieves a phase noise of-123 dBc/Hz at 1 kHz offset and-136 dBc/Hz at far-from-carrier offsets. When divided down to 10 MHz, this effectively corresponds to-138 dBc/Hz at 1 kHz offset and-151 dBc/Hz at far from carrier offset, which represent 13 dB and 4 dB improvements over recently published work on surface-micromachined resonator oscillators, and also now beat stringent GSM phase noise requirements by 8 dB and 1 dB, respectively. I. |
| File Format | |
| Language | English |
| Publisher Institution | Technical Digest, IEEE Int. Electron Devices Mtg |
| Access Restriction | Open |
| Subject Keyword | Mechanicallycoupled Array Single Resonator 60-mhz Wine-glass Disk Resonator Positive Feedback Loop To-138 Dbc Hz Phase Noise And-136 Dbc Hz Far-from-carrier Offset Mechanically-coupled Array Stringent Gsm Phase Noise Requirement Phase Noise Of-123 Dbc Hz Frequency Selective Tank Carrier Offset Surface-micromachined Resonator Oscillator And-151 Dbc Hz Db Improvement |
| Content Type | Text |
| Resource Type | Article |
