New fabrication technique of fluorocarbon polymer-coated hollow waveguides by liquid-phase coating for medical applications

A new method to fabricate dielectric-coated hollow waveguides has been proposed based on all liquid-phase techniques. Long silver tubes with an extremely smooth inner surface have been fabricated by using a new process of silver mirror reaction and loss reduction of short silver waveguides has been made by liquid flow-coating of a fluorocarbon polymer.