Low reflective aerosol Jet printed broadband matched load up to 67 GHz

This work presents an additively manufactured termination circuit in terms of a microstrip transmission line with gradually varying conductivity applicable up to 67 GHz with an absolute reflection coefficient of less than −10 dB — and even less than −15 dB above 12 GHz. Different load conditions and manufacturing approaches are discussed and a time domain analysis supporting the design is presented.