IWR1642: Need 200m people detection range

user5306308

Part Number: IWR1642

Hi, there is a customer needs that requires 200m people detection range, 5 degree angle resolution and 30 degree FOV is enough. Do you have any suggestion on the antenna re-design?

Thanks.

over 6 years ago

0 CHETHAN KUMAR Y.B. over 6 years ago

TI__Mastermind 25835 points

Hello,

This would requires redesign of antennas, Higher distance would need higher antenna gain, In this case probably in the vicinity of 18-20 dBi .

There are other elements you may want to consider such as frame rate, RF Bandwidth, IF bandwidth, Range resolution, Velocity resolution, losses in the system etc. .

You may want to try mmWave system estimator from the below location.

https://dev.ti.com/gallery/view/1792614/mmWaveSensingEstimator/ver/1.3.0/

Thanks and regards,

CHETHAN KUMAR Y.B.

0 user5306308 over 6 years ago in reply to CHETHAN KUMAR Y.B.

Prodigy 100 points

Thanks a lot.

Regarding to the antenna gain, our engineer evaluated the antenna design and found that it is difficult to get 20dBi gain based on the MIMO antenna layout, do you have any suggestion on that?

0 CHETHAN KUMAR Y.B. over 6 years ago in reply to user5306308

TI__Mastermind 25835 points

Hello,

You may want to explore, some of the antenna techniques provides in the literature as shown below.

Proceedings of the 46th European Microwave Conference "A High Efficiency Antenna with Horn and Lens for 77 GHz Automotive Long Range Radar" . IEEE paper link: ieeexplore.ieee.org/.../stamp.jsp

You may want to consider external horn antennas, There are some discussion on this topic in the below E2E thread.
e2e.ti.com/.../2442608

Also, you may want to explore with a Dielectric Lens Antennas, example shown below:
repositorio.iscte-iul.pt/.../pre_print_Dielectric_Lens_Antennas_v2.pdf

Thanks and regards,
CHETHAN KUMAR Y.B.

Sensors

Sensors forum

IWR1642: Need 200m people detection range