Dielectric Material Constant Sensitivity Analysis of 3D-Printed W-Band Reflector Fresnel Lens Antenna Based on Acrylonitrile Butadiene Styrene Plastic

To improve the design capability of the 3D-printed W-band reflector Fresnel lens antenna, a dielectric material constant sensitivity analysis is performed. Firstly, the analyzed and measured antenna characteristics of the 150-mm-diameter W-band reflector Fresnel antenna developed to date are described. The analyzed and measured maximum antenna gains are 33.3 and 32.4 dBi, respectively. Subsequently, the dielectric material constant sensitivity, which includes antenna characteristics dependencies on the loss tangent and the relative dielectric constant, are carried out based on the results of the finite-difference time-domain analysis and measurements.