The space between copper planes can act as waveguides for RF frequencies. It makes trace impedance changes and signal losses.
To cut such waveguide effect, put vias, which is essentially a copper cylinder.
When the distances between vias are small enough compared to the wavelength, the board is like continuous copper material, instead of waveguide.
Read More: Prototype PCB Assembly
#PCB Design
I have a batch of PCBs with SMT nuts which has been assembled onto a PCB – the nut has kapton tape on top to allow easy pickup for assembly. How can we do this faster/what’s a better method?
I ordered RF PCB design and prototype from my supplier . There are something like a hole, but it is not, on the ground surface. What is the purpose of making these holes? The PCB is inside of the E70 433NW14S LoRa module.
We receive a batch of PCB with scratches from my supplier, but they think it is acceptable. I have never seen such error on even an B stock boards parts. Very confused. How do scratches affect PCB working?
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