微发射功率的微波探测装置

By reducing the transmitting antenna power of the microwave detection device and adopting differential feeding technology, the problem of poor accuracy of microwave detectors in radio interference environments was solved, achieving stable detection and anti-interference capabilities for human body movements and heartbeats.

CN116148833BActive Publication Date: 2026-07-17SHENZHEN MERRYTEK TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN MERRYTEK TECHNOLOGY CO LTD
Filing Date
2023-01-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing microwave detectors have poor accuracy in environments with severe radio interference, making it difficult to reliably detect human movement characteristics and heartbeats. They also lack anti-interference capabilities and have limited adaptability, especially in different target detection spaces.

Method used

By reducing the transmitting antenna power of the microwave detection device, utilizing the weak signal shape of the microwave beam, and combining differential feeding and mixing circuit technology, the accuracy of the echo signal is improved, environmental electromagnetic interference is suppressed, and the adaptability to different target detection spaces is enhanced.

Benefits of technology

It enables stable transmission of microwave beams under weak signal conditions, reduces interference with communication devices, improves detection accuracy and stability, and adapts to the needs of different target detection spaces.

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Abstract

本发明提供一种微发射功率的微波探测装置,其中所述微发射功率的微波探测装置突破了本领域技术人员倾向于提高所述回波信号的强度的技术倾向,基于通信用途的天线对高信号强度的普遍性追求,通过降低所述微发射功率的微波探测装置的发射天线的发射功率至小于等于0dBm,组合以接入平衡差分信号形态的回波信号的方式,降低相应所述微波波束和所述反射回波的信号强度至弱信号形态,以基于通信装置自带的底噪抑制机制,避免对相应通信装置造成干扰,和利用界定目标探测空间的砖石结构或玻璃对弱信号形态的所述微波波束的吸收,形成对所述微波波束的梯度边界的适应性界定,并能够保障相应多普勒中频信号对与人体活动特征的反馈精度。
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