Teflon or Rogers 4350 for single-sided boards.
Rogers 4350 for multi-layer boards.
(there are others, but I haven't tried them)
This link might help, but make sure to read the notes at the bottom:
http://www.merix.com/resourcecntr/materials/mtl_property_comp.html
Good Luck,
Jack
-----Original Message-----
From: Ed Askew [mailto:[log in to unmask]]
Sent: Thursday, August 31, 2000 10:28 AM
Subject: Board Mat'l For high speed Rf Circuits
Any Suggestions or observations on Mat'l for 50 ohm at 2 ghz
Thanx Ed