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DOPPLER MOTION SENSOR DEVICE WITH HIGH ISOLATION BETWEEN ANTENNAS WITHOUT INCREASING DEVICE SIZE
DOPPLER MOTION SENSOR DEVICE WITH HIGH ISOLATION BETWEEN ANTENNAS WITHOUT INCREASING DEVICE SIZE
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机译:天线之间具有高隔离度的多普勒运动传感器设备,而不会增加设备尺寸
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摘要
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.
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