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Sub-array level digital multi-beam satellite communication phased-array antenna

A digital multi-beam, phased array antenna technology, applied in the direction of antenna, antenna array, antenna grounding switch structure connection, etc., can solve the problems of slow development, large amount of equipment, high cost, etc., to improve space utilization and improve experience , cost reduction effect

Active Publication Date: 2016-02-17
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The digital multi-beam phased array antenna has been gradually developed in the field of radar, but in the field of satellite communication, due to the limitation of satellite terminal equipment and special requirements of satellite communication system, the development is relatively slow, so the rapid and efficient development has the advantages of flexible digital The beam phased array satellite communication antenna has also become a research hotspot of all parties
Unit-level digital beamforming technology requires a large amount of equipment, high power consumption, and high cost, which is not conducive to engineering implementation

Method used

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  • Sub-array level digital multi-beam satellite communication phased-array antenna
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  • Sub-array level digital multi-beam satellite communication phased-array antenna

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Embodiment Construction

[0018] Below, combine Figure 1-Figure 3 The present invention will be further described.

[0019] In a subarray-level digital multi-beam satellite communication phased array antenna 1, such as figure 1 As shown, it is a structure integrating multiple independent modules. The phased array antenna consists of an antenna unit 1, an analog active sub-array 2, a local oscillator feed network 3, a digital beamforming device 4, and a satellite communication terminal module 5 arranged in sequence from top to bottom; the form of the antenna unit 1 Not limited, multi-directional design can be carried out according to the specific needs of satellite resources; multiple antenna units 1 form an array according to the set arrangement and are arranged at the front end of the analog active sub-array 2, and are connected to the analog active sub-array 2 through cables or quick-plug connectors. The transceiver components in the active subarray are connected.

[0020] In a subarray-level dig...

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Abstract

The invention discloses a sub-array level digital multi-beam satellite communication phased-array antenna. The antenna includes broadband antenna units, analog active sub-arrays, a local oscillation feed network, a digital beam forming device, a satellite communication terminal module, and the like. The designed multi-beam satellite communication phased-array antenna not only can form a plurality of beams at satellite communication terminals but also has the functions of achieving adaptive beam nulling according to spatial incoming waves and resisting interference and can satisfy multipoint communication between future satellites and ground terminals. The antenna system not only can be used for ground terminals but also can be used for antenna terminals on satellite transponders.

Description

technical field [0001] The technical field involved in the present invention covers communication, navigation, detection and receiving, remote control and telemetry, etc., and is specifically a subarray-level digital multi-beam satellite communication phased array antenna. The present invention is also especially suitable for satellite communication on the ground or on the satellite to realize data exchange between equipment at both ends of the signal, and can be used as a satellite communication terminal phased array with functions such as satellite signal fast acquisition, tracking, polarization selection, and multi-beam formation. antenna system. Background technique [0002] In satellite communication, the ground terminal antennas in our country often use traditional reflectors, flat panel arrays or analog active phased array antennas. These antennas play a huge role in the establishment of satellite communication signals. However, the mainstream antenna technology can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q23/00H01Q1/50
Inventor 韩国栋王焕菊张宙张领飞高冲
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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