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Original question:

AWR1243: TX-RX antenna isolation

AWR1243: AWR1243: TX-RX antenna isolation

user5144327
Intellectual 570 points
Part Number: AWR1243
Other Parts Discussed in Thread: TIDEP-01012,

Hello,

Here's the question I asked three weeks ago, is there any answer? Thank you!

My Customer designed a cascade radar using Preproduction AWR1243P. They tested that the TX-RX antenna isolation was 15~30dB, and they learned in the following link that the isolation should be greater than 25dB:
e2e.ti.com/.../652520
They designed three editions, and all the measures were very strict, they thought their boards were all right.They wanted to know why the TX-RX antenna isolation could not reach 25dB, Is it due to the chip?

  • 0
    TI__Guru 58035 points

    Hello ,

    The TX-RX isolation on the CHIP is better than 25dB. The effective isolation with the antenna will depend on the antenna isolation. Could you provide details on what is the TX-RX antenna isolation on your board? Have you measured this separately?

    Regards,
    vivek

  • 0 in reply to Vivek Dham
    Intellectual 570 points

    Hi Vivek,

    This problem results in poor imaging focusing effect and close moving target detection distance.Even with equipment, it is very difficult to measure transceiver isolation on a single board.Now my customer has made a two-piece cascade board, but there is still the problem of isolation.

    They want to know when the  AWR1243 cascade radar (TIDEP-01012) can be purchased. They want to use it for comparison.

    Thank you!

  • 0 in reply to user5144327
    TI__Guru 58035 points

    Hello,

    I do not have the exact date for the cascade EVM availability for the purchase. Please watch out on the TIDEP-01012 page for updates.. 

    regards,

    Vivek