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.
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#PCB Design
Is there an industry standard for showing how plates in the SMT cap are oriented? How can you tell if it is a square-rectanguloid instead of being flattish in one dimension?
I want to unambiguously refer to an assembled PCB that has been tested.
Does anyone know a standard term for a PCBA that has been through test (assuming a single testing procedure)? I would probably refer to it as a tested PCBA (TPCBA) but this seems clumsy.
I’ve typically used RF switches for this purpose, but that’s also when it was necessary to allow the antenna selection to be changed “in the field”. But for cases where the antenna selection is a manufacture-time option, I’m considering simple zero-ohm resistors.
Multilayer PCBs(Printed Circuit Boards) have become a critical component in modern electronics due to their ability to offer higher density, improved signal integrity, and efficient
The copper traces on a printed circuit board carry electronic signals and distribute power between components and devices. This complex network of conductive pathways allows all
People expect electronic products to be rich in functions, but also require them to be small and portable, which brings new challenges to circuit board
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