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CCS/IWR6843: IWR6843 MIMO with Antenna arrangement

Agate
Expert 1275 points
Part Number: IWR6843

Tool/software: Code Composer Studio

Dear TI 

We have design a module with fully 4G Bandwidth antenna at 60GHz. 

But our antena architecture is in the back side , TI EVB is in the same sie. 

The location is the same but output side is different , which part need to be modify for MIMO in the source code ? 

Our reference lab is the 3D people counting at industrial toolbox 4.2 . can help ?

We check the antenna arragement as below diagram , please help how to modify parameter for this case.  

  • 0
    TI__Mastermind 25825 points

    Agate Ko,

        As long as Antenna mappings are the same and distance between receiver Antennas are lamda/2  and Transmitter antenna are lamda then you should be able to use the same demo configuration for the Angle estimation. 

    You could refer to below post as well for understanding the code for virtual antenna configuration.

    https://e2e.ti.com/support/sensors/f/1023/t/854133

    Thanks and regards,

    CHETHAN KUMAR Y.B.

  • 0 in reply to CHETHAN KUMAR Y.B.
    Expert 1275 points

    Dear  CHETHAN KUMAR Y.B. Sir

          

          Your link is my before Q&A case .  

          Below is our module with 6843 , the antenna part is not the same with TI EVB , It's antenna radiation output from another side. (Not in the IC side) 

          When we use the same demo configuration for the angle estimation is OK ?  Horizontal element direction is swapped . Why it is ok ?  

          Can help me to figure out  why ? 

          ( This antenna architecture gain & bandwidth & heat issue can improve very much for CMOS mmwave)

     

  • 0 in reply to Agate
    Expert 1275 points

    Dear  CHETHAN KUMAR Y.B. Sir

    Can help us ?  The field test is the horizontal direction swapped , how to modify the detial function for this antenna design ?

    BR 

  • 0 in reply to Agate
    TI__Mastermind 25825 points

    Agate Ko,

          Sorry for the delay in response,  In the original ODS EVM virtual antenna position is shown below. 

    In the new ODS antenna virtual antenna array would be mirror imaged and receiver phase inversion seem to be at different location 

    You could modify the OOBdemo_angleEstimationAzimElev below E2E thread has the link, 

    https://e2e.ti.com/support/sensors/f/1023/t/854133

    Thanks and regards,

    CHETHAN KUMAR Y.B.