With the accumulation of packaging, size, cost and technology, Infineon has recently released two millimeter wave sensors, expanding its sensors in the industrial field to the consumer electronics field.

One is BGT60LTR11AIP, a radar sensor based on millimeter wave Doppler effect, integrated baseband, using Antennas in Package (antenna package) packaging technology, this highly integrated chip can solve antenna design, radio frequency and radar signal processing. complexity issues. In automatic mode, the radar can detect a person at a distance of 5 meters, the horizontal viewing angle is about 80 degrees, and the average power consumption is less than 5 mW (milliwatts).

The main advantages of this sensor include: first, a highly integrated chip, which can detect the direction of human movement within 5 meters in automatic mode, without any development of millimeter-wave RF radio frequency; second, compared with infrared solutions, millimeter-wave It is more sensitive and has a lower false alarm rate, which will greatly improve the user experience. The third is that the chip size is small, and the millimeter wave has the characteristics of penetration and non-conductivity, and it is easier to place it in the package of some products. In the automatic mode, designers can also plug and play, which is very convenient; fourth, the chip provides an option for an external MCU, using high-end hardware and customized software to achieve a longer detection distance.

Another solution is BGT60LTR13C, which belongs to ultra-wideband and can use FMCW algorithm. At the same time, it also integrates a chip with very fine resolution, which can realize more different functions.

The sensor also adopts Antennas in Package (package including antenna), the size is 6 × 5 mm, the average power consumption is about 20 to 30 mW (milliwatts) when in use, the bandwidth used is greater than 5GHz, and the resolution can be about up to 3 cm. Because it belongs to the multi-transmission and multi-receive architecture, it can also extract angle information and develop using some different advanced algorithms. It can realize gesture recognition, indoor personnel presence perception, tracking, and even heartbeat monitoring and other functions. The above functions can be It is applied in various scenarios, such as: smart building, smart home, TV, Notebook and elderly care.