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  3. Infineon — BGT60LTR11AIP Autonomous Radar Sensor

Infineon — BGT60LTR11AIP Autonomous Radar Sensor

 

Infineon

Infineon BGT60LTR11AIP First Completely Autonomous Radar Sensor

Low power 60 GHz Doppler radar sensor with antennas in package for motion and direction motion

The BGT60LTR11AIP MMIC from Infineon is a fully integrated microwave motion sensor including Antennas in Package (AIP) as well as built-in motion and direction of motion detectors. A state machine enables operation of the device autonomously, i.e., without an external microcontroller or further signal processing.

The MMIC has four quad-state input pins that give the performance parameters flexibility, even in this autonomous mode. The detection threshold or sensitivity has 16 different levels in order to fulfill a configurable detection range from 0.5 m up to 7 m with a typical human target Radar Cross Section (RCS). Hold time is also configurable in 16 levels in autonomous mode, which allows detection status to be held from 0.1 s up to 30 minutes. The device can achieve power consumption of less than 2mW with adjustable duty cycling.

The small, 3.3 × 6.7 × 0.56-mm³ BGT60LTR11AIP MMIC by Infineon has integrated antennas. This eliminates antenna design complexity at user end and allows the PCBs to be designed with standard FR4 materials.

These features make this small-sized radar solution a compelling smart and cost-effective replacement for conventional PIR sensors, even in low power or battery-powered products. In addition, the BGT60LTR11AIP addresses a huge variety of applications that can benefit from smart motion detection - whether to save energy, protect privacy or improve the user experience of smart devices.

Features

  • 3.3 x 6.7 x 0.56 mm³ package size
  • 1Tx 1Rx Antennas in Package (AIP) with 80 ° Half Power Beam Width (HPBW)
  • Integrated motion detector
  • Integrated direction of motion detector
  • Multiple modes of operation including a completely autonomous mode
  • Adjustable performance parameters such as detection sensitivity, hold time and frequency of operation
  • Standard FR4 material can be used for PCB design

Benefits

Autonomous mode:

  • Up to 7 m detection range for humans
  • Less than 2 mW power consumption possible
  • Requires minimal external circuitry

SPI mode:

  • Up to 10 m detection range for human targets
  • Requires microcontroller unit (e.g. Arm Cortex-M0)
  • Advanced functionalities by SPI configuration or further signal processing

Applications

  • Smart Building and Smart Home devices such as thermostats, smoke detectors, smart speakers and other entertainment systems
  • Smart appliances (Small home appliances and major home appliances) such as service robots, vacuum cleaners, lawnmower, washing machine and kitchen appliances
  • Smart home security and alarm systems including IP cameras
  • Displays such as TVs, monitors, laptops or tablets
  • Lighting systems and lighting control (mainly indoor lighting)
  • Air conditioners
  • Automated door openers
  • Contactless switches
  • Multicopter and drones

Block Diagram

Infineon — BGT60LTR11AIP Autonomous Radar Sensor Block Diagram

Parametrics

Parametrics BGT60LTR11AIP
Current Consumption 110 mA
Family Radar 60GHz
FoV (HPBW) 90
Frequency min max 60.5 GHz 61.5 GHz
Frequency Divider 9.6MHz
Gain 6 dBi
Max Detection Range 7m (autonomous) ; 14m (signal processing)
Number of Rx Antennas 1
Number of Tx Antennas 1
Qualification JEDEC 20/22
Speed [m/s] 0.01m/s (4Hz) up to 2.5 m/s (1kHz)
Supply Voltage 1.5 V
Target Application Smart Building; Smart appliances; Smart home security and alarm systems including IP cameras; Displays such as TVs, monitors, laptops or tablets; Lighting systems and lighting control (mainly indoor lighting); Air conditioners; Automated door openers; Contactless switches; Multicopter and drones; Smart Home devices
Temperature Range -20 to + 85°C

 

DEMO BGT60LTR11AIP

The BGT60LTR11AIP shield can be attached to an Arduino MKR board or the included Infineon Radar Baseboard MCU7. Infineon’s Toolbox supports this platform with a demonstration software and a Radar GUI to display and analyze acquired data in time and frequency domain. It further enables to change various performance parameters of the BGT60LTR11AIP in order to evaluate this radar sensor.

Infineon – Evaluation Board EVAL-1ED3122Mx12H for 1ED3122MX12H

EVAL-BGT60LTR11AIP shield

  • 20 x 6.25 mm size
  • 2 LEDs on the shield illustrating the motion sensor output
  • Digital interface for configuration and data transfer to an MCU
  • Form factor compatibility with Arduino MKR board

Radar baseboard MCU7

  • Hi-Speed USB 2.0 interface
  • Compatibility with Arduino MKR standard
  • Operates with Radar GUI (Infineon Toolbox)
Infineon — BGT60LTR11AIP First Completely Autonomous Radar Sensor