AWR1642: reflection coefficient(VSWR) with frequency of TX and RX

user1454792

Part Number: AWR1642

Refer to specification of AWR1642 ,The TX and RX ports are matched to 50 ohm,But I want to know reflection coefficient(VSWR) with frequency .

over 6 years ago

0 Cesar over 6 years ago

TI__Guru*** 148224 points

Hi

Would have to check with characterization team if this information is available.

Thank you
Cesar

0 Vivek Dham over 6 years ago in reply to Cesar

TI__Guru 58035 points

Hello ,
You can refer to the following thread to see the S11 plots across frequency on TX and Rx ports with the RO3003 based stackup.

https://e2e.ti.com/support/sensors/f/1023/p/637734/2383257

Regards,
Vivek

0 user1454792 over 6 years ago in reply to Vivek Dham

Prodigy 240 points

Hi Vivek,
I have a question.Is consistency of chips good? such as, temperature variation(-45℃~125℃),bulk shipment(100000 chips).

0 Vivek Dham over 6 years ago in reply to user1454792

TI__Guru 58035 points

Hello,
What is the S11 value you are targeting across temperature and devices? The S11 variation would depend on many factors like PCB manufacturing variation also etc. because the impedance is includes the device to PCB transition .

Regards,
Vivek

0 user1454792 over 6 years ago in reply to Vivek Dham

Prodigy 240 points

Hello,
Refer to specification of AWR1642,The return loss (S11) is < –10dB(typical).Please ,How to get the return loss(S11)?design? mesure?

0 Vivek Dham over 6 years ago in reply to user1454792

TI__Guru 58035 points

Hello,
We have done simulations to look at he variation from the device side. Also we have done measurements using probe setup to verify the simulations. Ofcourse we don't model the PCB variation in that since that would depend on the manufacturer.

Regards,
vivek

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AWR1642: reflection coefficient(VSWR) with frequency of TX and RX