HB200A X-Band Microwave Doppler Radar Motion Detector Module

The HB200A is an X-band microwave doppler radar module designed for non-contact detection of moving objects. Operating at a center frequency of 10.525 GHz, it uses the Doppler effect to sense motion without being affected by temperature, humidity, ambient light, dust, or airflow. The module integrates a dielectric resonator oscillator (DRO), a microwave mixer, and a pair of microstrip patch antennas, functioning as a compact bi-static transceiver. With a typical operating current of 37 mA (60 mA maximum) at 5V DC, it is suitable for continuous-wave and pulse operation in embedded systems. The 13 dBm EIRP output power and 8 dBi antenna gain provide a practical detection range for indoor and outdoor applications, while the IF output delivers an analog signal that can be processed by a microcontroller or external amplifier. This microwave doppler sensor is commonly used in automatic door control, security and alarm systems, lighting activation, and speed measurement setups. Its flat 37 × 45 × 8 mm profile and 8-gram weight make it easy to integrate into space-constrained enclosures. The HB200A is sensitive to electrostatic discharge, so proper grounding and low-voltage soldering practices are recommended during installation.