Large-view field antenna-sharing microwave and laser-mixing wireless communication apparatus

Abstract

The invention, which belongs to the technical field of wireless communication, relates to a large-view field antenna-sharing microwave and laser-mixing wireless communication apparatus, so that problems that the existing communication system has disadvantages of high complexity, heavy weight and large size, the antenna field angle is small and thus capturing and tracking can not be carried out conveniently, and the receiving sensitivity is low can be solved. The apparatus comprises an off-axis three-reflector structure formed by a primary mirror, a secondary mirror, and a third-stage mirror, a fine tracking galvanometer, a folding mirror, a first beam splitter mirror and a second beam splitter mirror and the like. The fine tracking galvanometer receives the light emitted by the third-stage mirror and reflects the received light to the folding mirror; the folding mirror reflects the received light; the reflected light enters the first beam splitter mirror by an incident way; the first beam splitter mirror reflects one part of the received light to a beacon optical transceiver assembly and the other part of the light is transmitted to the second beam splitter mirror; and the second beam splitter mirror reflects the received light to a communication optical transceiver assembly. A microwave feed source is located at the focus of the primary mirror and is connected to a microwave communication assembly by a cable; and the microwave communication assembly and the laser communication optical transceiver assembly are connected to a master control assembly by cables.

Description

technical field [0001] The invention relates to a wireless communication device, in particular to a large field of view common antenna mixed microwave and laser wireless communication device, which belongs to the technical field of wireless communication. Background technique [0002] Laser wireless communication is a very important communication method in the field of wireless communication because of its advantages such as large communication capacity, high transmission rate, good confidentiality, strong anti-electromagnetic interference ability, light weight, small size, and low power consumption. It has potential application prospects in occasions where the security and confidentiality of communication content is high (such as government, military department, security department), or places with strong electromagnetic interference (such as battlefields). [0003] When the laser passes through the atmosphere, a series of atmospheric effects such as atmospheric absorption,...

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Problems solved by technology

[0007] The present invention solves the problem that the existing hybrid microwave and laser wireless communication devices are simple combinations of microwave communication systems and laser communication systems, using exclusive antennas and servo control systems alone, and the communication system is complex, heavy and bulky, and the antenna The small field angle is not conducive to capture and tracking, and the receiving sensitivity is low. A large field of view common antenna hybrid microwave and laser wireless communication device is proposed.

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