Invention Grant
- Patent Title: Doppler motion sensor device with high isolation between antennas without increasing device size
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Application No.: US16408358Application Date: 2019-05-09
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Publication No.: US11194037B2Publication Date: 2021-12-07
- Inventor: Tse-Peng Chen , You-Chieh Chen , Shih-Kai Lin
- Applicant: RichWave Technology Corp.
- Applicant Address: TW Taipei
- Assignee: RichWave Technology Corp.
- Current Assignee: RichWave Technology Corp.
- Current Assignee Address: TW Taipei
- Agent Winston Hsu
- Main IPC: G01S13/88
- IPC: G01S13/88 ; G01S7/03 ; G01S7/02 ; G01S13/00 ; G01V8/20 ; G01S13/58 ; G01S13/56
Abstract:
A Doppler motion sensor device is used for detecting a motion of an object. The Doppler motion sensor device includes a first antenna and a second antenna. The first antenna is used to transmit or receive a first wireless signal. The second antenna is used to transmit or receive a second wireless signal. A first straight line passing through a first feed-in point and a first middle point of the first antenna is orthogonal to a second straight line passing through a second feed-in point and a second middle point of the second antenna. One of the first wireless signal and the second wireless signal is a transmission signal. The transmission signal is reflected by the object to form the other one of the first wireless signal and the second wireless signal.
Information query
