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2022•IEEE Solid-State Circuits LettersRequires access

16-Core BiCMOS VCOs With Phase Noise Down to –130 dBc/Hz at 1-MHz Offset From 20 GHz

Domenico Riccardi, Alessandro Franceschin, Andrea Mazzanti

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Abstract

This letter presents two 16-core 20-GHz VCOs in 55-nm BiCMOS technology proving an ultralow phase noise. Through a design approach careful to the issues of large oscillators arrays, the first voltage-controlled oscillator (VCO) achieves a phase noise as low as −130 dBc/Hz at 1-MHz offset, with 17.4% tuning range. The second VCO, exploiting diode-based coupling switches can be reconfigured 2-by-2 from 2- to 16-core, trading power and phase noise efficiently. An overall 12.5% tuning range is achieved, while the phase noise at 1 MHz scales from −120 to −128.8 dBc/Hz.

About this research paper

What this paper is about

This letter presents two 16-core 20-GHz VCOs in 55-nm BiCMOS technology proving an ultralow phase noise. Through a design approach careful to the issues of large oscillators arrays, the first voltage-controlled oscillator (VCO) achieves a phase noise as low as −130 dBc/Hz at 1-MHz offset, with 17.4% tuning range. The second VCO, exploiting diode-based coupling switches can be reconfigured 2-by-2 from 2- to 16-core, trading power and phase noise efficiently. An overall 12.5% tuning range is achieved, while the phase noise at 1 MHz scales from −120 to −128.8 dBc/Hz.

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OpenAlex reports 14 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

This letter presents two 16-core 20-GHz VCOs in 55-nm BiCMOS technology proving an ultralow phase noise. Through a design approach careful to the issues of large oscillators arrays, the first voltage-controlled oscillator (VCO) achieves a phase noise as low as −130 dBc/Hz at 1-MHz offset, with 17.4% tuning range. The second VCO, exploiting diode-based coupling switches can be reconfigured 2-by-2 from 2- to 16-core, trading power and phase noise efficiently. An overall 12.5% tuning range is achieved, while the phase noise at 1 MHz scales from −120 to −128.8 dBc/Hz.

Key concepts: dBc, Phase noise, Voltage-controlled oscillator, Offset (computer science), Electrical engineering, BiCMOS, Materials science, Electronic engineering

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16-Core BiCMOS VCOs With Phase Noise Down to –130 dBc/Hz at 1-MHz Offset From 20 GHz — Research Paper | ScholarLens