Voltage-controlled oscillator, voltage-controlled oscillation processing method and electronic equipment

Abstract

The invention provides a voltage-controlled oscillator, a voltage-controlled oscillation processing method and electronic equipment, and the voltage-controlled oscillator comprises a negative resistance coupling circuit, an error feedback network, a resonant cavity, and an output processing circuit. The negative resistance coupling circuit multiplexes input current, the input current is output from the output processing circuit after being processed by the resonant cavity, the error feedback network obtains error voltage from the resonant cavity and feeds back the error voltage to the negative resistance coupling circuit, and threshold voltage is increased in the working process of the negative resistance coupling circuit. The input current is multiplexed through the negative resistance coupling circuit, the error voltage generated by asymmetry of the current multiplexing structure is utilized to influence the substrate voltage of the negative resistance coupling circuit, and the threshold voltage is increased in the coupling pair conduction process, so that the current during conduction is reduced, and the power consumption is further reduced.

Description

Technical field[0001]The present invention relates to the field of voltage controlled oscillators, and more particularly to a voltage controlled oscillator, a voltage controlled oscillator processing method, and an electronic device.Background technique[0002]In order to meet the development of the wireless millimeter wave communication system, the design of low power consumption, broadband, low phase noise is the key to high performance communication systems. In the design of multi-resonant VCO and nuclear multi-core VCO, voltage controlled oscillators require more complex transformers and circuit layouts, increase the area of ​​the circuit and increase the power consumption of the circuit.[0003]At present, the voltage controlled oscillator achieves low power consumption, including the use of NMOS-PMOS as coupled pairs, reducing the operating voltage of the circuit and reducing transistor size, or using variable capacitance tuning, switching capacitor array, and variable inductance ...

AI Technical Summary

Problems solved by technology

However, reducing the operating voltage means that this requires a larger transistor size to meet the start-up conditions, which in turn limits the tuning range of the circuit, and reducing the transistor size alone may not meet the conditions for oscillation; and switched capacitor arrays and variable inductors Will degrade the quality factor of the circuit to some extent, thereby increasing power consumption and compromising phase noise performance

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