Band-pass filtering antenna housing and preparation method thereof

The invention discloses a preparation method of a band-pass filtering antenna housing, which comprises the following steps that a prefabricated structure model of the band-pass filtering antenna housing is input into a 3D printer, the band-pass filtering antenna housing comprises an inner surface layer, a middle layer and an outer surface layer, and the inner surface layer and the outer surface layer are provided with Y-shaped hollow structures which are arranged periodically; preparing a first ceramic raw material and a second ceramic raw material; printing the first ceramic raw material into a middle layer by adopting a photocuring mode, and printing the second ceramic raw material into an inner surface layer and an outer surface layer by adopting a fused deposition mode to obtain an antenna housing preform; and degreasing and sintering the antenna housing preform to obtain the band-pass filtering antenna housing. The invention further discloses a band-pass filtering antenna housing, the prepared band-pass