C-band broadband circularly polarized single pulse array antenna

The invention relates to a C-band broadband circularly polarized single pulse array antenna which is suitable for the technical field of airborne communication. The C-band broadband circularly polarized single pulse array antenna specifically comprises an antenna support plate, a bottom-layer microstrip array, a radiant patch layer and an upper-layer cover plate, wherein the bottom-layer microstrip array is placed on the antenna support plate and stuck with a bottom-layer metal plate together through a conductive adhesive, the radiant patch layer is placed over the bottom-layer microstrip array and fixed on the antenna support plate, the upper-layer cover plate is fixed above the radiant patch layer, used for pressing radiant patches and fixedly connected with a side frame of the antenna support plate through screws, and the incomplete sequential rotation feed way is used for ensuring the broadband and low axis ratio properties of the antenna; and a double-layer antenna structure is adopted for expanding the gain and standing wave bandwidth of the antenna. The invention provides the circularly polarized single pulse array antenna for airborne communication, which has the advantages of low cost, high finished product rate, broad working bandwidth, low axis ratio, light weight, short processing cycle, high gain and capability of meeting the requirements of a beam and difference beam directional diagram.