AWR1843BOOST: Rev C

Nitin Kumar3

Part Number: AWR1843BOOST

I have AWR1843Boost EVM rev C. I have few questions:

1. I am trying the beam steering example given by TI, I am not getting any data in y-z plane or Elevation, any help will be appreciated. The pdf in that example says that, to use the third Tx antenna 1V supply is required and for that a 0Ohm resistor is to be mounted but that is for Rev A, and I have Rev C that comes with 1V supply, I believe, correct me if I am wrong, otherwise please help me to obtain the data in elevation.

2. Regarding the angular coverage of this device, what is the elevation range, as it is not mentioned in the documents?

3. Is there any example to achieve 250m range, as the datasheet says this device can have a max range of 250m?

over 5 years ago

0 Cesar over 5 years ago

TI__Guru*** 148134 points

Hi,

Regarding Range:

250m range can be achieved with custom high gain antenna.

With the antenna available on the BOOST EVM, we can reach ~150m with beam forming

Regarding elevation support

Elevation is supported only in the MIMO subframes and range is ~30m. In the beamsteering lab, MIMO is not supported

In order to get elevation information, please use

mmwave_automotive_toolbox_2_9_1\labs\lab0007_medium_range_radar

Thank you

Cesar

0 Nitin Kumar3 over 5 years ago in reply to Cesar

Prodigy 50 points

Thanks for reply Cesar. Are you suggesting that If I write a program my self for beam steering with 150m or higher range(with external antenna), still I wont be able to get elevation coverage?

0 Cesar over 5 years ago in reply to Nitin Kumar3

TI__Guru*** 148134 points

No,

The feedback provided is only regarding the TI AWR1843BOOST EVM and TI sw releases.

Of course you can use the TI sw as a starting point and add elevation support to the beamforming functionality.

thank you

Cesar

0 Nitin Kumar3 over 5 years ago in reply to Cesar

Prodigy 50 points

Thanks again for the reply Cesar. I tried Lab 7 MRR and I am receiving the elevation data.

I hope to achieve the long range capability with beam steering using AWR1843Boost EVM.

Thanks once again

0 Cesar over 5 years ago

TI__Guru*** 148134 points

Thank you,

With beam steering and beamforming at boresight only we have performed a lot of testing and the best performance is published in the TI Design UG. This is the best we can achieve with AWR1843BOOST EVM. For better performance we recommend you design a new antenna

http://www.ti.com/tool/TIDEP-01021

Thank you

Cesar

0 Nitin Kumar3 over 5 years ago in reply to Cesar

Prodigy 50 points

Hey Cesar,

Thanks for your reply. The Medium Range Radar with beam steering example given in Automative toolbox, according to the document it suggests that beam steering in Azimuthal plane is done and it also provides coverage in elevation. So coming back to my original question. If the document says elevation coverage is there,why in my case I am not able to achieve that? Or this is some mistake in documents available with the example, as you suggested that elevation coverage is possible with MRR case (example #7) only.

Also when you say that I have to design a new antenna, then should I go for enhanced directivity in new antenna design, and the hardware will support it. Or the hardware also does not support this?

Regards

Nitin Kumar

0 Cesar over 5 years ago in reply to Nitin Kumar3

TI__Guru*** 148134 points

Hi,

Yes, the documentation mentions elevations because it is more general and covers also the MRR implementation provided in lab 07.

Our support team has limited input on antenna design. If needed you should work with a third party to help on antenna design.

The hardware will support an antenna with 3Tx/4Rx

Thank you
Cesar

0 Nitin Kumar3 over 5 years ago in reply to Cesar

Prodigy 50 points

Hi,

Cesar, thanks for the update.

Regards

Nitin Kumar

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AWR1843BOOST: Rev C