What does lumped port mean؟

hello
I'm working on an article. and it is cavity filter about.
i use piezoelectric A c t u a t o r in my article.
i have a question
What does lumped port mean؟
please elaborate!

Hi,

A simple internet search gives a lot of explanations and more detailed documents.
Did you try this in your own?

Go through a couple of them.
If there still are questions feel free to ask them here .. but give a link to the document you refer to, so we can discuss about the same.

Klaus