Modelling and Impact of 3D Print Inaccuracies on the Performance of Circular Waveguide Hybrid Coupler


  • Amrita Bal Department of Electrical and Computer Engineering, Texas A&M University, College station, TX-77843, USA
  • Gregory H. Huff Department of Electrical Engineering, The Pennsylvania State University, State College, PA-16801, USA


3D printing, circular waveguide hybrid coupler and electroless silver deposition


Circular waveguide hybrid coupler operating over a frequency range of ISM 57-64 GHz, additively printed and metal plated using electroless technique is introduced. Effects of orientation of print and thickness of intricate structures on the performance of circular waveguide hybrid coupler are presented. The structure is printed using commercially available stereolithographic (SLA) printer. Circulatory system operated by a peristaltic pump is used for selective silver deposition of the hybrid coupler.


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