Dual-reflector antenna of C/S band beam sharing main reflector and realizing method

Abstract

The invention provides a dual-reflector antenna of a C / S band beam sharing main reflector and a realizing method. The invention relates to a novel high-gain dual-band antenna which improves an original C band dual-reflector antenna structure of a shaped offset Gregorian type, enhances the S-beam performance and keeps the original C band beam performance. The dual-reflector antenna of the C / S bandbeam sharing main reflector comprises a main reflector, an auxiliary reflector and feed source assemblies (a C band feed source, an S band feed source, and the like), a C band corrugated loudspeaker is used as a feed source illumination auxiliary reflector of the antenna C band for excitation; and the S band microstrip feed source is used as a feed source of the antenna S band to directly illuminate the main reflector for excitation. By the special design of the antenna structure configuration and the smart combination with the S feed source design, the S beam is realized through sharing the main reflector and the antenna is wholly designed so that the antenna becomes a dual-reflector antenna of the C / S band beam sharing main reflector, which has the C band anti-interference capability, can carry out S band transceiver operation and has favorable antenna performance.

Description

technical field [0001] The present invention relates to a dual-reflection-surface antenna with a C / S frequency band beam sharing a main reflector and its implementation method, in particular to an antenna design method that uses the original main reflector to implement new frequency applications, and belongs to the field of antenna technology . Background technique [0002] With the continuous deepening and wide application of satellite communication technology, more and more payload functions are required for satellites, and the integration level of antennas is also required to increase. For communication satellites, the S-band communication capabilities of mobile communication satellite applications are provided at the same time as the needs of some live broadcast satellite applications, which can meet the application needs of live TV and broadcast signals on the ground, and provide mobile communication services based on satellite base stations on the ground. The C-band l...

AI Technical Summary

Problems solved by technology

The existing public or known C and S dual-band communication satellite antennas are difficult to meet the application requirements

It is difficult to take into account the influence of beams in different frequency bands and the basic overlap of beam pointing, and similar designs are mostly used for ground applications, which cannot meet the requirements of space environment and satellite layout

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