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Satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction

A phased array antenna and multi-beam technology, which is applied to antennas, antennas, antenna arrays and other directions suitable for movable objects, can solve the problems of complex implementation of beamforming modules, difficult adaptive control, and difficult to adjust, etc. R&D cycle, improved reliability and flexibility, high reliability effect

Inactive Publication Date: 2011-02-02
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

Moreover, when the number of beams required is large (tens or hundreds), the implementation of the beamforming module will become very complicated and difficult to adjust. It is more difficult to form multi-beams with low sidelobe levels or realize adaptive control. difficulty

Method used

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  • Satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction
  • Satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction
  • Satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction

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Embodiment Construction

[0018] In order to make the purpose and features of the present invention more comprehensible, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] see figure 1 , figure 1 A schematic structural diagram of the on-orbit reconfigurable spaceborne multi-beam phased array antenna of the present invention is shown. figure 1 Among them, the spaceborne multi-beam phased array antenna includes a digital beamforming module 1, a multi-channel RF front-end module 2, an array antenna module 3 and a reconstruction control module 4. Among them, the first three modules are traditional components of a common multi-beam phased array antenna, and the reconfiguration control module 4 is additionally designed to realize the on-orbit reconfigurable function of the present invention. Combine below figure 1 Describe the function and structure of each module.

[0020] The digital beamforming module 1 i...

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Abstract

The invention discloses a satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction. The antenna comprises a digital wave beam forming module, which can realize wave beam indexes required by the satellite-borne multi-beam phased-array antenna by changing configuration information of the digital wave beam forming module. The satellite-borne multi-beam phased-array antenna also comprises a reconstruction control module, wherein the reconstruction control module comprises a communication interface unit, a configuration storage unit and a reconstruction control unit; the communication interface unit is communicated with a satellite-borne computer to receive configuration information of the digital wave beam forming module, which is transmitted by the satellite-borne computer; the configuration storage unit is connected with the communication interface unit for storing newly received configuration information of the digital wave beam forming module; and the reconstruction control unit is connected with the configuration storage unit for injecting the configuration information of the digital wave beam forming module, which is stored in the configuration storage unit, into the digital wave beam forming module in a reconstruction format and time sequence which can be accepted by the digital wave beam forming module.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to an on-orbit reconfigurable space-borne multi-beam phased array antenna. Background technique [0002] The spaceborne antenna is an important part of the satellite payload and has an extremely important impact on the performance of the entire satellite communication system. In the 1990s, multi-beam phased array antenna technology began to be used in communication satellites, which has the advantages of low loss and large-angle dynamic scanning. Moreover, it is easy to realize multi-beam coverage on the surface of the earth by using the space diversity effect of the array antenna, thereby improving the gain of the antenna. In addition, through frequency reuse between beams, the user capacity of the satellite communication system can be greatly improved. Therefore, many satellite constellation systems have adopted multi-beam phased array antenna technology, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/28H01Q21/00
Inventor 梁广龚文斌余金培刘会杰
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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