AWR1243: Antenna array spacing design for multiple chip solution

steven SU

Part Number: AWR1243
Other Parts Discussed in Thread: TX12,

Hi,

It is four Chip cascade Ti demo system. The antennas 1,2,3,4 in the figure respectively represent transmitting antennas, and the antennas 2,3 and 4 are used to measure vertical angles. I found that the vertical spacing between the 2, 3, and 4 antennas is not equidistant.

The vertical spacing between antenna 1 and antenna 2 is λ/2, the vertical spacing between antenna 2 and antenna 3 is 3λ/2,and the vertical spacing between antenna 3 and antenna 4 is λ. Is that so? If it's correct, please tell me why the vertical spacing is set this way. My understanding is that the vertical spacing is λ/2 between the antennas 1,2,3,4 .If it's wrong, What is the horizontal and vertical spacing between antennas 1,2,3 and 4?

Regards,
Steven

over 5 years ago

0 Raghunandan Kamath over 5 years ago

TI__Mastermind 22155 points

Hello Steven,

Each of the AWR1243 has 3 Tx and on the 4Chip Cascade solution the three TXs (TX1/2/3) from the master device is placed in the vertical direction for elevation antenna estimation. The remaining 9 TXs (TX4~TX12) and all 16 RX channels are placed in the horizontal plane for azimuth angle estimation.

The three elevation antennas are placed to form a minimum redundancy array to improve elevation angle resolution.

Let me know if this is clear.

Thanks,

Raghu

0 Hector Andres Gonzalez Diaz over 5 years ago in reply to Raghunandan Kamath

Intellectual 270 points

Hello

I haven't seen this board in the website. Could you please let me know where to get it? What is the reference of this board?

Thanks

Hector

0 Raghunandan Kamath over 5 years ago in reply to Hector Andres Gonzalez Diaz

TI__Mastermind 22155 points

Hector,

This board is not currently available for order on TI.com .

Thanks,
Raghu

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AWR1243: Antenna array spacing design for multiple chip solution