Electroless Silver Plating of Additive Manufactured Trough Waveguide Mode Transducer and Antenna Structure

Three-dimensional printing and metal plating of trough waveguide structure operating in the ISM band ranging from 57-64 GHz is discussed. Addition of commercially available filter in the currently available circulatory electroless silver plating system is discussed and the improvement in insertion coefficient measurement is highlighted. Potential application of short length trough waveguide as TRU calibration standard for measuring longer length trough waveguide section is also discussed.