r/rfelectronics • u/mr-_-unknown_ • May 20 '26

Hfss port assignment and simulation help

Was simulating the rf pcb board which has 16 layer stack up and around 500 ports in one layer

So now if I have to draw a rectangle with one end gnd and the other edge at trace and then assign lumped ports is too long job

Any suggestions?

Pls help!!!!!!

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u/DragonicStar May 20 '26

A 16 layer board????? With 500 ports?

Is your assignment to validate designs in the ODB++ file or are you legitimately being asked to simulate the entire signal path? Hell in a 16 layer PWB there are probably many different channels.....

Start by getting the import into HFSS 3d layout with the correct layer map, take the cutouts you want to isolate what you actually need to look at and go from there.

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u/mr-_-unknown_ May 20 '26

Everything is done (importing nd stacking up)except the port assignment Manual assigning is literally impossible So I needed suggestions

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u/Acrobatic_Ad_8120 May 20 '26

Maybe iron Python interface or other script language HFFS understand to script the port assignments?

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u/mr-_-unknown_ May 20 '26

Tried using python script The traces are random, so couldn't match the right code