Orthogonal signal generating circuit and electronic device

By designing a quadrature signal generation circuit including a single slip module, a quadrature frequency division module and an output module, and using an inverter composed of PMOS tube and NMOS tube to process signals, the problem of complex quadrature signal generation circuit in the prior art is solved, and a high-consistent ultra-wideband quadrature signal output and high-quality local oscillator signal generation are achieved.

CN119363075BActive Publication Date: 2025-03-28INFORMATION SCI RES INST OF CETC +1
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Patent Information

Application Number
CN202411932654.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-28
Estimated Expiration
2044-12-26

AI Technical Summary

Technical Problem

The existing orthogonal signal generation circuit has the problem that the circuit is complex, the area is large, and it is difficult to deal with high-frequency input signals.

Method used

A quadrature signal generation circuit including a single slip module, a quadrature frequency division module and an output module is designed, and the signal processing is performed using an inverter composed of PMOS tube and NMOS tube to realize the conversion of differential signals and the generation of quadrature signals.

Benefits of technology

A high consistency ultra-wideband orthogonal signal output is achieved, which can provide high-quality local oscillator signals for the orthogonal variable frequency transceiver, suppress interference of the mirror signal and spurious signal radiation, and reduce the mirror current of the mixer.

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Abstract

The embodiments of the present disclosure provide an orthogonal signal generating circuit and an electronic device, including: a single-slip module, an orthogonal frequency division module and an output module; used to convert the input first signal and output it into four target orthogonal signals. The orthogonal signal generating circuit provided by the embodiments of the present disclosure can achieve highly consistent ultra-wideband orthogonal signal output, and can provide a high-quality local oscillator signal for an orthogonal frequency conversion transceiver; the transceiver can use the local oscillator signal to suppress the interference of the mirror signal and the spurious signal radiation. The circuit can also directly generate four orthogonal signals with a preset duty cycle, reduce the mirror current of the mixer, and have sufficient driving capability to provide the mixer with sufficient gate turn-on voltage. The orthogonal signal generating circuit also has the advantages of small area and low power consumption, and solves the problems existing in the orthogonal signal generating circuit in the related art.
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