| 摘要 |
Provided is an array antenna, comprising a cavity power divider and a final stage power dividing, coupling and radiating unit. The cavity power divider conducts power dividing after receiving input signals to output first power dividing signals; the final stage power dividing, coupling and radiating unit comprises a dielectric substrate, a first metal surface layer and a second metal surface layer; a coupling gap array is formed on the second metal surface layer to receive the first power dividing signals; a radiating gap array corresponding to the coupling gap array is formed on the first metal surface layer; the dielectric substrate is provided with a plurality of metalized through hole units vertically passing through the first and second metal surface layers; the range corresponding to each metalized through hole unit surrounds a coupling gap and a radiating gap corresponding to the coupling gap for conducting final stage power dividing on the first power dividing signals, so as to output second power dividing signals to the radiating gap array so that the radiating gap array can radiate out the second power dividing signals. The present invention increases bandwidth. |
