A SiGe BiCMOS push-pull class-C VCO operating at 17 GHz and making use of only npn transistors is presented. A magnetic transformer is used to set positive feedback around a common-collector differential pair and implement the push-pull operation. This allows to halve the bias current for a given amplitude of oscillation, while using just one type of active devices. The oscillator features a phase noise as low as -116 dBc/Hz at 1 MHz offset, while drawing 13.7 mA from the 3.3 V supply. The tuning range is 15%.

A 17 GHz All-npn Push-Pull Class-C VCO

Veni, Simone;Bevilacqua, Andrea
2019

Abstract

A SiGe BiCMOS push-pull class-C VCO operating at 17 GHz and making use of only npn transistors is presented. A magnetic transformer is used to set positive feedback around a common-collector differential pair and implement the push-pull operation. This allows to halve the bias current for a given amplitude of oscillation, while using just one type of active devices. The oscillator features a phase noise as low as -116 dBc/Hz at 1 MHz offset, while drawing 13.7 mA from the 3.3 V supply. The tuning range is 15%.
2019
2019 IEEE BiCMOS and Compound semiconductor Integrated Circuits and Technology Symposium (BCICTS)
2019 IEEE BiCMOS and Compound semiconductor Integrated Circuits and Technology Symposium (BCICTS)
978-1-7281-0586-4
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3325373
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