Filtering integrated antenna and design method thereof

The invention discloses a filtering integrated antenna and a design method thereof, the filtering integrated antenna comprises an antenna, the antenna comprises a substrate, the filtering integrated antenna further comprises a filter assembly, and the substrate is provided with a first radiation wiring layer and a reflection wiring layer at an interval along the thickness direction of the substrate; a second radiation wiring layer is arranged on the substrate along the vertical direction of the substrate; radiation parts are arranged on the first radiation wiring layer and the second radiation wiring layer, a reflection part is arranged on the reflection wiring layer of the substrate, and a shielding cavity is formed in the substrate; the filter assembly is arranged in the shielding cavity and is electrically connected with the radiation part. The invention aims to provide an effective novel design method for the filtering antenna, the integration level of the filtering antenna is improved, and miniaturizatio