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Home > Products > Sensors > Electromagnetic Wave Sensors

Electromagnetic Wave Sensors

May 10, 2018

24GHz Electromagnetic Sensor

A new evolution of products and services integrating the Internet of things in to people's everyday lives has begun, particularly in the world of home automation. Today we are seeing a wide range of smart home appliances from doorbells, to thermostats, that use IoT functionality, employing built-in sensors to trigger many of the operations. These "smart" products are being developed to automatically "turn on" once human activity is recognized. For such applications, Socionext, a leading provider of RF CMOS Sensors, has designed a series of single-chip 24GHz and 60GHz radio-controlled distance measurement sensors with ultra low power consumption and positional detection functionality to address this need.

Product Lineup

SC1230 Series 24GHz Radar Sensor

SC1220 Series 60GHz Radar Sensor

 

Socionext 24GHz Sensor chip
24GHz Sensor

24GHz Electromagnetic Wave Sensor

Features

  • Small size (9mm X 9mm X 1mm)
  • Sensing modes: FMCW
  • Low power: 0.5mW average

Benefits

  • Multiple antennas (both Tx and Rx) integrated inside the package
  • High volume, mass production using standard CMOS semiconductor processing
  • Impervious to obstructed view, such as darkness, smoke, fog, dirt over lens.
    • Ability to penetrate materials such as glass, wood, paint, plastic and other non-metallic materials
  • Draws less power than optical visual camera systems
  • Can detect any moving object, as compared to PIR which is dependent on target’s temperature profile
  • Output a variety of data about the moving object, not possible with other sensors

Applications
Radar Sensor Application Image

 

Product Lineup

24GHz Radar Sensor

Description

SC1232AR3 All-in-one RADAR sensor for Entry Motion & Distance Detection
SC1233AR3 All-in-one RADAR sensor for Entry Motion & 2D Detection

Click here to view the press announcement

60GHz Electromagnetic Wave Sensor

Description

The new ultra-compact, low-power SC1220 Series radio wave ranging sensors utilizes 60GHz frequency band and detects individual’s location and movement with very high accuracy and precision.

The SC1220 series offers high-precision sensing using a 7GHz bandwidth (57 ~ 64 GHz frequency for transmitter) allows for the detection of a person’s location and very minute movements. These capabilities make them ideal for advanced applications such as operating appliances using hand gestures. Additionally, since radar sensors are not susceptible to environmental conditions such as temperature and light fluctuations, they can be used in smart home devices and a variety of applications.

Key Features

    • Socionext was the first company worldwide to develop 60GHz radar sensor in a small package of only 7mm X 7mm X 0.83mm with very low power consumption of 1~2.5mW.
    • Highly-integrated and easy-to-use devices that incorporate antenna, wireless circuit, A/D converter, FIFO memory, SPI interface and intelligent power control sequencer for flexible duty cycle control
    • Does not require advanced knowledge by users in handling high-frequency devices

SC1220AT2

The SC1220AT2 detects three-dimensional movements such as the lifting and lowering of a person's hands.
The most suitable sensor for detecting three-dimensional motions. It comes with a built-in antenna of 2 transmission systems and 2x2 reception array, and can detect azimuth, elevation angle, speed and distance. In addition to presence detection, the device can sense the position of a person’s hands in a three-dimensional space, which is ideal for operations requiring gestures.

Socionext SC1220AT2 60GHz SensorUsage Examples
SC1220AT2 Usage Examples (lights on/off, music playback)

SC1221AR3

The SC1221AR3 specializes in high-precision detection of two-dimensional movements, and is capable of detecting multiple moving objects in a specific area.

This sensor is ideal for two-dimensional motion detection. It incorporates a 1x4 linear array receiver antenna to detect azimuth, speed and distance of multiple moving objects. Although the angle detection is only available in the azimuth direction, it is two times more precise than SC1220AT2, which is suitable for detecting a person entering a specific area.

Socionext SC1221AR3 60GHz SensorUsage Examples
SC1221AR3 Usage Examples (multiple movements and area entry detection)

Product Lineup

SC1220AT2 SC1221AR3
Description All-in-one RADAR for detection of azimuth / elevation angle, velocity and distance All-in-one RADAR for detection of azimuth angle, velocity and distance of multiple objects
Power Consumption 2.5mW
(at 0.5% Duty Cycle)
1mW
(at 0.2% Duty Cycle)
Transmitter Frequency 57.1 – 63.9GHz Frequency 60.025 – 61.475GHz
Package FC-LGA
7mm X 7mm X 0.83mm
FC-BGA
9mm X 9mm X 0.98mm

Click here to view the press announcement

60GHz Radar Sensor Videos

3D Gesture Sensing
http://www.socionextus.com/wp-content/uploads/2018/05/CMOS-60GHz-Radar-Sensor_3D_GESTURE_SENSING.mp4
Close Proximity Gesturing and Long Range Detection
http://www.socionextus.com/wp-content/uploads/2018/05/CMOS-60GHz-Radar-Sensor_CLOSE_GESTURING_AND_LONG_RANGE_DETECTION.mp4

The Socionext Advantages

  • Expert radio frequency (RF) know-how
  • Extensive analog and RF antenna design experience
  • Getting customers up-to-speed on measuring and making sense of the sensor data
  • Ability to provide proof-of-concept and incorporating sensor capabilities into customers' overall system designs to enable smart features
  • Availability of evaluation kits

Related Articles:
Embedded Computing Design Article

 

 

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Related Products

SC1220AT2 60GHz RADAR Sensor
SC1221AR3 60GHz RADAR Sensor
SC1232AR3 24GHz RADAR Sensor
SC1233AR3 24GHz RADAR Sensor

Related Documents

CMOS 24-GHz Radar Sensor: SC1232AR3
CMOS 24-GHz Radar Sensor: SC1233AR3
CMOS 60-GHz Radar Sensor: SC1220AT2
CMOS 60-GHz Radar Sensor: SC1221AR3
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