Ultra-low-power lowpass filter with a novel complementary push-pull DC offset calibration method applied to 5.8GHz Doppler radar

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Ieice Electronics Express Pub Date : 2023-01-01 DOI:10.1587/elex.20.20230380

Liangningyi Liu, Lei Chen, Jie Su

引用次数: 0

Abstract

This paper presents a lowpass filter for 5.8 GHz Doppler radar with an intermediate frequency signal hold function, which significantly reduces system power by interrupt mode operation. Additionally, it proposes a novel complementary push-pull DC offset calibration method to calibrate the DC voltage of the lowpass filter with the common mode voltage. Compared to traditional methods, the proposed scheme effectively stabilize the quiescent operating point of the receiver. The experimental results show that the power consumption of the proposed filter is 0.019 mW, calibrated DC voltage is 1.65 V, and residual DC voltage is less than 1 mV.

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应用于5.8GHz多普勒雷达的超低功耗低通滤波器与一种新颖的互补推挽直流偏置校准方法

本文提出了一种具有中频信号保持功能的5.8 GHz多普勒雷达低通滤波器，该滤波器通过中断模式工作大大降低了系统功耗。此外，提出了一种新颖的互补推挽直流偏置校准方法，用共模电压校准低通滤波器的直流电压。与传统方法相比，该方案有效地稳定了接收机的静态工作点。实验结果表明，该滤波器功耗为0.019 mW，校准直流电压为1.65 V，剩余直流电压小于1 mV。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ieice Electronics Express 工程技术-工程：电子与电气

CiteScore

1.50

自引率

37.50%

发文量

119

审稿时长

1.1 months

期刊介绍： An aim of ELEX is rapid publication of original, peer-reviewed short papers that treat the field of modern electronics and electrical engineering. The boundaries of acceptable fields are not strictly delimited and they are flexibly varied to reflect trends of the fields. The scope of ELEX has mainly been focused on device and circuit technologies. Current appropriate topics include: - Integrated optoelectronics (lasers and optoelectronic devices, silicon photonics, planar lightwave circuits, polymer optical circuits, etc.) - Optical hardware (fiber optics, microwave photonics, optical interconnects, photonic signal processing, photonic integration and modules, optical sensing, etc.) - Electromagnetic theory - Microwave and millimeter-wave devices, circuits, and modules - THz devices, circuits and modules - Electron devices, circuits and modules (silicon, compound semiconductor, organic and novel materials) - Integrated circuits (memory, logic, analog, RF, sensor) - Power devices and circuits - Micro- or nano-electromechanical systems - Circuits and modules for storage - Superconducting electronics - Energy harvesting devices, circuits and modules - Circuits and modules for electronic displays - Circuits and modules for electronic instrumentation - Devices, circuits and modules for IoT and biomedical applications