Recommended PCB layout Design for Version-B SMA 2.4 mm Connector
An optimized layout suppresses the natural cavity mode within the via GND ring as well as additional cavity coupling to other structures on the PCB.
D1: diameter of the signal anti-pad on the top layer = 60 mil.
D2: diameter of the signal pad = 20 mil.
D3: diameter of the signal anti-pad on the inner layers = 40 mil.
D4: diameter selected = 118 mil.
The width of the reference diving board must be at least twice the width of the signal trace.
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