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IWR6843: Radar ISK, but with exotic elevation antenna array.

Wolfgang Jalma
Intellectual 283 points
Part Number: IWR6843

Hi Champ,

I would like to make radar isk that , but with improves elevation channel. So my advisor suggest me to build such exotic, which I attached in this post. 

My problem, there is a lot of single antenna that holds a single horizontal position, in which I put red color. My question is, does this single antenna contributed to horizontal doa, or we must build more than one antenna array on the same high (z axes) in order to make that array useful in horizontal doa?

Thank you very much.

Sincerely,

Wolfgang

 

  • 0
    TI__Mastermind 25835 points

    Hello Wolfgang,

         Could you please elaborate what you mean by "single antenna", and What does "a", "b", "c" designate, Is it Tx antenna, Rx antenna? What is the between different colors red and black?

    Also could you please explain what is the what is the end application targeted? 

    Thanks and regards,

    CHETHAN KUMAR Y.B.

  • 0 in reply to CHETHAN KUMAR Y.B.
    Intellectual 283 points

    Hi Sir 

    Sorry for not explaining my question clearly. Those picture is the product of Tx and Rx all together. The separate tx and rx are drawn in the picture attach in this post. My question is still the same, if in the one horizontal level we have only on rx, does this antenna contributed to horizontal angle, or we need more than one element on the same level is needed?

    Thank you very much

    Sincerely, 

    Wolfgang

    Separated tx and rx

    The product of tx and rx

  • 0 in reply to Wolfgang Jalma
    TI__Intellectual 790 points

    Hello Wolfgan.

    The short answer is, you always need more than one antenna element in any domain to estimate the angle of arrival of the corresponding domain. But, I am trying to understand what you actually want to achieve with the pattern you proposed.

    It will eventually give the same effect of the rotated version of it as shown below. Technically, you can achieve the same results with the second option after the coordinate transformation.

    Regards.

    Muhammet

  • 0 in reply to Muhammet Yanik
    Intellectual 283 points

    Dear Prof Yanik,

    Thank you very much for your answer. I think I understand the problem clearly now.

    I am also very grateful that you made the picture, and rotating it so we understand that we need more than one element for every domain/dimension.

    Sincerely yours,

    Wolfgang