The HB100 Miniature Microwave Motion Sensor is a module that uses X-Band Bi-Static Doppler technology to detect motion. It consists of a Dielectric Resonator Oscillator (DRO) and a pair of Microstrip patch antennas, which make it suitable for motion detection equipment.
This module can be used for various applications, such as alarms, motion detectors, lighting control, vehicle speed measurement, and automatic doors.
The text below explains the Doppler effect based on time. When radio waves encounter a moving object, they will be reflected by the object. The frequency of the reflected waves will change depending on the motion of the object. If the radio waves encounter a stationary object, then the frequency of the reflected waves will be equal to the frequency of the transmitted waves. If the object moves towards the source, then the reflected waves will be compressed, which will increase their frequency. On the other hand, if the object moves away from the source, then the reflected waves will be stretched, which will decrease their frequency.
Note: Please use a low-voltage soldering iron and connect it to a reliable ground. This device is sensitive to ESD and it may be damaged during soldering. The IF output of the HB100 module is especially sensitive. You can check it for damage using a multimeter in diode mode. The forward voltage drop between IF and GND should be about 0.25 V.
- Low current consumption (typical 30 mA)
- CW or pulse operation
- Flat profile
- Long detection range (20 m)
|Input Supply Voltage (VDC)
|4.75 ~ 5.25
|Minimum Power Output
|13 dBm EIRP
|PCB Size ( L x W ) mm
|45 x 38
|6 × 5 × 2 cm
- 1 x HB100 Microwave Doppler Radar Wireless Motion Sensor Module