3D printed 77 GHz Planar Yagi-Uda Antenna

A proof of concept 3D printed Yagi-Uda antenna for automotive radar at 77 GHz and 3D printed fabrication plan are presented. The initial design on Connex VeroWhite yields a return loss of 12.7 dB at 73.2 GHz, and 8.7 dBi phi-pol realized gain in the endfire direction, with cross-pol 20 dB down. Two 3D printed fabrication plans are discussed. The fabricated antenna and measured results will be presented at the conference.