The application relates to the technical field of antennas, in particular to a
wideband satellite communication antenna. The
wideband satellite communication antenna comprises a grounding plate, a feeding device, a patch, a connecting device and a
coupling branch. The grounding plate is arranged at the bottom of an antenna structure, the patches are arranged above the grounding plate at intervals, at least one
coupling branch is arranged at the periphery of the patch at intervals, one end of the
coupling branch is connected with the grounding plate, the other end of the coupling branch is an open circuit structure, the feeding device inputs a
radio frequency signal to the patch or the coupling branch, the edge area of the patch and / or the open circuit end area of the coupling branch is provided with the connecting device, and the connecting device forms an impedance loading or electrical coupling path between the patch and the grounding plate and between the coupling branch and the grounding plate. The application can consider the
wideband and
miniaturization of the antenna, has strong orthogonal mode independent regulation and control ability, has a simple structure and is easy to implement in
engineering, and has good
engineering implementability and application value in the aspects of
miniaturization, light weight, wideband and high-performance
circular polarization radiation.