AWR1243: Bandwidth of Antenna on AWR1243 Boost EVM

radarJunkie

Expert 2090 points

Part Number: AWR1243

Hi,

I wanted to know what is the bandwidth of the antennae etched on the AWR 1243Boost EVM ?

Thank you,

over 6 years ago

0 Randy Rosales over 6 years ago

TI__Genius 17200 points

Hi RJ,

All of the XWRx EVM TX and RX antennas (including the GCPW and Microstrip transmission line feed) designed to achieve better than -10dB S11 across the full 76GHz to 81GHz operating bands of these devices.

Does this answer your question?

0 radarJunkie over 6 years ago in reply to Randy Rosales

Expert 2090 points

Randy,

Thank you so much for your reply. This answers my questions. As a follow-up I understand that the design intent was to get performance over the 5 GHz BW.

Do you have any S11 measurements for comparison as to how it turned out from design vs realization perspective ?

Regards,

RJ

0 Vivek Dham over 6 years ago in reply to radarJunkie

TI__Guru 58035 points

Hello RJ,
You can find the S11 numbers in the errata document (www.ti.com/.../swrz071.pdf).
we are presently not meeting the -10 dB S11 across the whole band but would be improving this. But the TX and RX performance numbers we quote are with the present S11 we have on our boards.

regards,
Dham

0 radarJunkie over 6 years ago in reply to Vivek Dham

Expert 2090 points

Thank you Dham for the reply. I appreciate your help.

If I understand correctly this will be improved at the package level in production samples on the chip (die to package transition) ? or is the root cause the GCPW and tx line and improvements will be made at the eval board level ?

Best Regards,

RJ

0 Vivek Dham over 6 years ago in reply to radarJunkie

TI__Guru 58035 points

Hello RJ,
We have not yet finalized on the exact .Our first preference would be to fix it in the package.

regards,
Vivek

0 Randy Rosales over 6 years ago in reply to Vivek Dham

TI__Genius 17200 points

Hi RJ,

Also, concerning designed vs. fabricated antenna match on the Boosterpack EVM, we do not have any measurement data we can share at this time.

Please let us know if this answers your questions on this topic.

0 radarJunkie over 6 years ago in reply to Randy Rosales

Expert 2090 points

Thank you Vivek and Randy.

Regards

RJ

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AWR1243: Bandwidth of Antenna on AWR1243 Boost EVM