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RF components footprints with grounded vias

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  • Paul van Avesaath
    replied
    I usually add a hidden pin "0" underneath a defined GND connection in the schematic symbol. then use the identifier "0" for all different holes / via's / pads that way you do not have to worry about it... (works great for pressfit cages and all other stuff. see the attached picture.. you can add as many pads/via this way getting you the desired result. should be doable in cadance the same way... right?

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  • robertferanec
    replied
    Honestly, I do not know. This is a special component, but I normally do not use this technique. I would only maybe used a special PAD shape and added VIAs during layout. I do not place VIAs into footprints as I often need to move them and having them defined in footprint creates limitations during layout.

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  • maxg31
    replied
    Yes I used a static shape for the footprint ground plan. I just wonder if the dynamic shape of the board and the static shape of the footprint will merge ?

    Thank you

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  • robertferanec
    replied
    Maybe in footprint use static shape? But ... it looks like you already have static shape there?

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  • maxg31
    replied
    Hi Roberts,

    Thanks for your quick reply,

    You were right, without names pins become mechanical pins but I cannot convert the mechanical pin in vias and I'm still not able to connect them to the dynamic shape ground plane to the pins

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  • robertferanec
    replied
    I do not remember exactly, but I think when you delete pin name, the padstack will become a mechanical part. This way you may be able to create VIA padstack, then add them through Layout -> Pins, select the added "VIA pins" and delete their pin names (that should make VIA pins just VIAs). Let me know if that worked.

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  • maxg31
    started a topic RF components footprints with grounded vias

    RF components footprints with grounded vias

    Hello everyone,

    I made the footprints of this components :https://www.minicircuits.com/WebStor...odel=SXHP-5%2B
    But as you can see in the suggested layout (https://ww2.minicircuits.com/pcb/98-pl230.pdf), there are lots of grounded vias (in purple).

    I would like this vias to be integer in my footprints but I have to add lots of pins with a through hole padstack (26 pins to be precise). I don't want this 26 unused pins in my schematic in capture because I have to attached these pins to the symbol and it's a lot.

    Is there a way to add lots of grounded vias in a footprints without add them in the schematic ?

    Thank you
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