Multibeam Antenna with Reflector for Ka/Ku Band High Throughput Satellite Applications

The maximal broadband system capacity of High Throughput Satellites currently available have reached 260 Gbps. And High Throughput Satellites are more cost-effective with less expense per bps than ever. Narrow beams and frequency or polarization reuse scheme of multibeam antennas are commonly utilized in High Throughput Satellites (HTS). The paper summarizes the principle of multibeam antennas on satellites and getting beams with different beamwidth. And the paper illustrates the merits and drawbacks of single feed per beam (SFPB) method and multiple feeds per beam (MFPB) method combined with different number of reflectors. Some successfully launched Ka/Ku multibeam high throughput satellites worldwide are listed. At last new technologies of HTS are described.