Traditionally, microwave circuitry has been manufactured using thin-film technology with gold sputtered onto polished alumina substrates.

Using high-definition screens and small flake thick-film inks, Extec has been producing complex microwave circuitry on standard grade ceramic for many years now.

Tested up to 30Ghz, performance has proved to be as good as, if not better in some instances, than thin-film equivalents.

Lange couplers and cascade filters have been produced, featuring line spacings as small as 0.001”