Best device(s) to get wired signal to barn?

HI, Thanks for the input.  The wifi extender I am using isn't actually located out in the barn where I need the ethernet connection.  I tried it out there but wasn't close enough to my router for a strong signal.  I currently have it plugged in at the end of the house closest to the bard which seems to be working to pick up a nice strong signal and also give me a good wifi signal out in the barn.  I read that you can't really piggy-back extenders off of each other, so I am looking for some sort of adaptor that picks up a wifi signal, but has an ethernet port.  Thanks.