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Ultra-Wideband, Low-Power, Inductorless, 3.1-4.8 GHz, CMOS VCO
dc.creator | Tsitouras, A. | en |
dc.creator | Plessas, F. | en |
dc.date.accessioned | 2015-11-23T10:52:01Z | |
dc.date.available | 2015-11-23T10:52:01Z | |
dc.date.issued | 2011 | |
dc.identifier | 10.1007/s00034-010-9220-6 | |
dc.identifier.issn | 0278-081X | |
dc.identifier.uri | http://hdl.handle.net/11615/34004 | |
dc.description.abstract | A low-power, inductorless, UWB CMOS voltage controlled oscillator is designed in 0.18 mu m CMOS technology targeting to a UWBFM transmitter application. The VCO is a Double-Cross-Coupled Multivibrator and generates output frequencies ranging from 1.55 GHz to 2.4 GHz. A low-power frequency doubler based on a Gilbert cell, which operates in weak inversion, doubles the VCO tuning range from 3.1 GHz to 4.8 GHz. The proportionality between the oscillation frequency and the bias current is avoided in this case for the entire achieved tuning range resulting in a low-power design. The selected architecture provides high suppression, over 45 dB, for the 1(st) and 3(rd) harmonics, while enabling high-frequency operation and conversion gain due to the unbalanced structure and the single-ended output. The proposed VCO draws 4 mA from a 1.8 V supply, it has a phase noise of -76.7 dBc/Hz at 1 MHz offset from the center frequency, while it exhibits a very high ratio of tuning range (43%) over power consumption equal to 7.76 dB. | en |
dc.source | Circuits Systems and Signal Processing | en |
dc.source.uri | <Go to ISI>://WOS:000286143900001 | |
dc.subject | Ultra Wideband FM (UWBFM) | en |
dc.subject | Relaxation oscillator | en |
dc.subject | CCO (current control | en |
dc.subject | oscillator) | en |
dc.subject | Double-cross-coupled oscillator | en |
dc.subject | Nearly sinusoidal | en |
dc.subject | oscillations | en |
dc.subject | Frequency doubling | en |
dc.subject | PHASE NOISE | en |
dc.subject | INTEGRATED-CIRCUITS | en |
dc.subject | FREQUENCY DOUBLER | en |
dc.subject | OSCILLATORS | en |
dc.subject | BIPOLAR | en |
dc.subject | VOLTAGE | en |
dc.subject | Engineering, Electrical & Electronic | en |
dc.title | Ultra-Wideband, Low-Power, Inductorless, 3.1-4.8 GHz, CMOS VCO | en |
dc.type | journalArticle | en |
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