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Original question:

IWR6843: waveguide trace width + ground separation calculation

IWR6843ISK-ODS: substituting one Rogers material for another in mmWave antenna

Ryan Sarver
Intellectual 540 points
Part Number: IWR6843ISK-ODS

I'm making a board based on the IWR6843ISK-ODS development kit and if I want to  use the same antenna design, but substitute in the RO4835 instead of the RO3003 as used in the kit (for easier manufacturing), since the substrate thickness isn't the same (5mil for the 3003 and 4mil for the 4835), do the antenna trace widths and/or spacings need to be adjusted in any way?

thanks,

Ryan