#contactless motion sensor

[video width="1920" height="1080" mp4="https://www.yugatech.com/wp-content/uploads/2021/10/How-radar-can-make-your-home-intuitively-smart.mp4"][/video] Infineon’s new autonomous radar sensor adds “smartness” to traditional motion sensing applications, like lighting control, automated door opening, and security alarms (see Figure 1). The XENSIV™ 60 GHz radar sensor BGT60LTR11AIP is a Doppler motion sensor using the 60 GHz ISM-band, provided as a single package radar solution. The sensor can be integrated into systems like laptops, tablets, TVs, and speakers, awakening them when it detects motion or direction of motion. 1 Radar sensors enable traditional motion-sensing applications to become smarter.[/caption] LOW-POWER DOPPLER RADAR Figure 2 shows the functional block diagram of the BGT60LTR11AIP MMIC. 2 Functional block diagram of the motion sensor.[/caption] [caption id="attachment_289009" align="aligncenter" width="698"] Fig. 3 The PCB holds the supporting circuitry for the motion sensor MMIC.[/caption] The integrated analog baseband consists of a sample-and-hold circuit for low-power, duty-cycled operation, followed by an externally configurable highpass filter, a variable gain amplifier, and a lowpass filter. EASY TO USE As a fully integrated microwave motion sensor, the BGT60LTR11AIP provides both motion and direction of motion information, and a state machine controls the device. Two LEDs indicate the functioning of the radar sensor: green when a target is detected and red for the direction of motion. Read more in our articles including "Autonomous Radar Sensor Enables Smart Motion Sensing" and "Infinix HOT 70: Coming in HOT Under P8,000!".