A 3D-printed X-band evanescent mode waveguide filter based on
pixelization strategy is proposed in this letter. The uniqueness of the
filter lies in the exploitation of the evanescent mode waveguide in
conjunction with a 3D-printed dielectric pixelated structure. The
crucial advantage of this approach is the fact that the dielectric
pixelated structure located in a waveguide is not metal coated, so the
fabrication process is easier. The proposed filter is manufactured using
the fused deposition modeling 3D print technology. Its measured
transmission coefficient in the passband is approximately -2 dB, and the
reflection coefficient is below -19 dB.