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Original question:

CC2642R: PCB trace antenna instead of chip antenna

CC2642R: PCB antenna design

Xiusheng Ni
Prodigy 10 points
Part Number: CC2642R

The PCB trace antenna is used with CC2642R. As current choice, SWRU120D is choosed as target design. But as checked in the reference design, the dxf file in document 'swrr034c' use the wrong parameters. It looks like the dxf used unit inch to replace mil by mistake. In the meanwhile, the unit in the gerber file is correct.

Could you please check if it's the true?

And give me your proposal if there is one.

Thnaks.

  • 0
    TI__Expert 5700 points

    Hi Xiusheng,

    I reviewed the DXF. It looks like the intended scale for the drawing is 1000:1in so effectively the units are in mils (1/1000 of an inch). DXF are unitless without a scale being defined.

    For the gerbers, if you're using a viewer like Gerbtool or similar, you should be able to select the units you want to use.

    I looked at both files supplied, and they agree with each other with maybe the difference of 2 or 3 mil (1/000 in).

    -Jake