Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 87215
70% Ultra-Wide Tuning CMOS VCO Based on Magnetic Energy Adjustment
Authors: Tai-Hsing Lee, Zhe-Wei Lin
Abstract:
This paper demonstrates an ultra-wide tuning VCO implemented by CMOS 0.18μm process technology. By employing the proposed technique of magnetic energy adjustment in the oscillator tank, our proposed VCO achieves a wide frequency tuning range of 69.46% from 0.9 GHz to 1.86 GHz. The phase noise at an operating frequency of 1.86 GHz is -110 dBc/Hz (Offset frequency=1MHz). Furthermore, it achieves an excellent FOMT of 190.03 dBc/Hz.Keywords: VCO, Ultra-wide tuning, Frequency tuning range, phase noise, Magnetic energy adjustment
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