Transmission line calculation

Thread Starter

Nidhi123

Joined Jul 24, 2018
13
Hello,

I am designing an RF PCB. I have some queries regarding PCB designing/.
how to calculate the width of the trace(Transmission line). I have used one online calculator but in that calculated trace width is bigger than PAD of IC. so in that case what I have to do.

Please guide as soon as possible.

Thanks
 

Papabravo

Joined Feb 24, 2006
15,481
Hello,

I am designing an RF PCB. I have some queries regarding PCB designing/.
how to calculate the width of the trace(Transmission line). I have used one online calculator but in that calculated trace width is bigger than PAD of IC. so in that case what I have to do.

Please guide as soon as possible.

Thanks
You make a smooth transition from the pad size to the trace width, while avoiding sharp corners of ANY kind (interior or exterior). You want something like an ARCTANGENT function to connect the pad and the trace on each side. What frequency are you working with?
 
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