A wideband 45 degree polarized electrical scanning antenna array manufactured by 3D printing with metals

3D printing is a new technology in antenna manufacturing. In this paper, a wideband 45 degree polarization antenna array is designed and manufactured by metallic 3d printing technology. With the employment of a bulkhead between two ridges, the antenna dimension in the scanning plane is reduced, thus a ±30° scanning capability is achieved. The operating bandwidth of the antenna covers X and Ku bands with 2 octave bandwidth.