60Ghz Radar Area Scanning Application Based on TI IWR6843

As we all know, the automotive market is an important direct market for TI single-chip CMOS radar chips.

TI's original application design was a 76-81-GHz sensor (mmWave radar chip).This chip is very popular and widely used in a bumper and car interior.

However, TI considers that the Federal Communications Commission (FCC) requires sensors from 76-GHz to 81-GHz frequencies to be used only for automotive applications. This prompted TI to adopt the same mmWave technology and provide a “new sensing mode” for non-automotive systems using 60 GHz.

TI applies this unique form of sensing to buildings, robots and automation systems on the factory floor, and high-resolution radars can detect objects, people and motion with high precision. At the same time, the ISM band is used for extensive deployment.

For example, the high-resolution IWR6x sensor is designed for industrial applications and offers ultra-wide bandwidths up to 4 GHz, capable of sensing objects and motion with 16 times higher accuracy than 24-GHz narrowband solutions.

At the same time, the IWR6x's new industrial sensor integrates “precise sensing with instant decision-making and monolithic processing” while distinguishing between human motion and mechanical motion, reducing false alarms.

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The overview of IWR6843

The IWR6843 is an integrated single chip mmWave sensor based on FMCW radar technology capable of operation in the 60-GHz to 64-GHz band. It is built with TI's low power 45-nm RFCMOS process and capable of the prior levels of integration in an extremely small The form factor. The IWR6843 is an ideal solution for low power, self-monitored, ultra-accurate radar systems in the industrial space.

IWR6843, based on 60GHz mmWave RF Complementary Metal Oxide Semiconductor (RFCMOS) technology. The Frequency Modulated Continuous Wave (FMCW) radar enables accurate measurement of distance and relative speed.

The block diagram of 60Ghz Radar Area Scanning

The Physical picture of IWR6843




Chip functional architecture diagram

The core advantages of solution 

Key features and benefits of the IWR6x sensor include:
1,intelligent edge autonomic operation:

The integrated processing power allows the sensor to reduce false positives and make immediate decisions, eliminating the need for additional microcontrollers or processors in many systems.

2,the highest resolution sensing:

Ultra-wideband wide-band millimeter-wave sensors detect objects, people, and very subtle movements (such as breathing and typing), and the resolution of the sensor is 16 times that of a 24 GHz sensor.

3,optimized industrial automation:

Millimeter-wave technology extends building and factory automation capabilities to enable smarter human computing, motion detection, robotics, safety and vital signs monitoring.

4,enhanced system accuracy:

The 60 GHz millimeter wave sensor can operate in crowded spaces, or under a variety of lighting and environmental conditions, and can penetrate glass, plastic and plasterboard to operate, enhancing the accuracy of existing systems.

5,simplified industrial design:

Designers can immediately design using the platform, which covers antenna packages, scalable software platforms, application-specific algorithms, and multiple reference designs.