Hi TI Engineering,
First of all sorry for addressing you directly, but I’m in the need for a quick answer, and I guess/hope you guys would know the answer to my below questions straight away, and as I know you help me out pretty fast last time I “was in trouble” :-)
I’m right now attending certification for a product using WL1833, and the test house have a question (wrt. SAR) as to if the WL1833 module can do simultaneously 2.4GHz BT and 5GHz WiFi transmission? As far as I understand for 2.4GHz WiFi and BT the antenna will be time-multiplexed (and thereby only connected to one TX output at a time), but wrt. WiFi at 5GHz I guess the two TX outputs (5GHz WiFi and 2.4GHz BT) are combined with a diplexer, and I actually never considered if these two TX’s will be physically activated at the same time, of if even this setup would be time multiplexed (despite it from an RF point of view strictly speaking isn’t needed I guess)?
I hope the above question is clear and that you can provide me a quick feedback on this? I will then follow up with a post to TI E2E for helping others in the future on this as well…
Best regards and thanks in advance
Søren
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Hi Søren,
To answer your question:
We do transmit on BT 2.4GHz in parallel to WLAN on 5GHz. There is no problem with that.
When running WLAN on 2.4GHz than as you understand correctly, antenna & time are shared with the BT.
Best regards,
TI Engineering
