The Boeing Company
Micro plasma limiter for RF and microwave circuit protection

Abstract:

A protection circuit configured to protect delicate electronics from high power signals is disclosed herein. To that end, the protection circuit includes a limiter circuit comprising a phase changing material to prevent high power signals from reaching one or more electronic circuits. The phase changing material assumes a limiting state automatically when an energy of an applied signal exceeds a threshold, which limits the energy of the signal passed on to any associated electronics.