pcb trace thinner than SMA pin connector

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kazim

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my sma connectro pin is 0.7 mm and my trace width is 0.4.
does any one have an idea how much siganl will i loose. and how can i eliminate this mismatch.
 

I dont have idea regarding the signal loss.
U cannot eliminate the mismatch but u can use a tear drop at the SMA connector pin to reduce the effect of mismatch.
 
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