A low-phase-noise 5-GHz CMOS quadrature VCO using superharmonic coupling.
A new concept for quadrature coupling of LC oscillators is introduced and demonstrated on a 5-GHz CMOS voltage-controlled oscillator (VCO). It uses the second harmonic of the outputs to couple the oscillators. The technique provides quadrature over a wide tuning range without introducing any increas...
| Publié dans: | IEEE Journal of solid state circuits 38, 7 (2003). |
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| Auteur principal: | |
| Format: | Article |
| Langue: | anglais |
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