Sujet : Re: transmission line z
De : user (at) *nospam* example.net (bitrex)
Groupes : sci.electronics.designDate : 08. Jun 2025, 16:41:19
Autres entêtes
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On 6/8/2025 11:39 AM, Bill Sloman wrote:
On 9/06/2025 12:58 am, john larkin wrote:
Suppose you have a slab of FR4 with copper on both sides, standard
ebay stuff. Now shear off a long thin slice. That's a balanced
transmission line.
>
air
__________________ copper
.........................................fr4
__________________ copper
>
air
>
>
>
What's that called?
>
Does anyone know of a calculator that handles this case?
Neither of my transmission line textbooks say anything about that. It's clearly a kind of transmission line, but presumably not a useful one - it's going to be dispersive, just like microstrip. If it was useful you would presumably be able to buy reels of it.
Used that way it's called a "parallel plate line" and the essential characteristics for ye olde Telegrapher's Equation are given in Pozar:
<
https://imgur.com/a/gAbKJgk>
transmission line z
Re: transmission line z
