IWR1642: Can I tie up the 2 TX paths into one antenna?

Jesse Wang

Intellectual 2285 points

Part Number: IWR1642

Hi,

As title, in the IWR1xxx circuit design, can I tie up the 2 TX pins into one antenna for better TX power?

Please see picture below for example.

over 6 years ago

0 Charles Oladimeji over 6 years ago

TI__Mastermind 33805 points

Hi,

Please see BPM mimo, section 4.2 of the linked appnote, it covers how to increase the power using BPM
www.ti.com/.../swra554a.pdf

Regards,
Charles O

0 Jesse Wang over 6 years ago in reply to Charles Oladimeji

TI__Intellectual 2285 points

Hi Charles,

Thanks for the document for combining the 2x TX into larger power by BPM method.

Besides the larger power, can I combine the 2 antenna paths into one to save space? Is this doable if I set the 2 TX pin with the same BPM (same spatial code)?

Sincerely, Jesse.

0 Charles Oladimeji over 6 years ago in reply to Jesse Wang

TI__Mastermind 33805 points

Combining the 2 antenna path is not recommended.

0 Jesse Wang over 6 years ago in reply to Charles Oladimeji

TI__Intellectual 2285 points

Thanks for the reply.

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IWR1642: Can I tie up the 2 TX paths into one antenna?