Mirror antenna and system used for compound communication of light wave and millimeter wave

Abstract

The invention belongs to the field of communication technology, particularly relates to a mirror antenna used for compound communication of light wave and millimeter wave. The antenna comprises an antenna main mirror, a compound secondary mirror, an antenna canister and a millimeter wave guide, wherein the antenna main mirror and the compound secondary mirror are coaxially installed at the two ends of the antenna canister; the antenna main mirror is provided with a central light diaphragm; the millimeter wave guide tightly leans against the back of the compound secondary mirror; the center of the compound secondary mirror is provided with a rectangular area corresponding to a section of the millimeter wave guide; the concave side of the antenna main mirror is opposite to the front side of the compound secondary mirror; the front side of the compound secondary mirror and the focal plane of the antenna main mirror are superposed; the concave side of the antenna main mirror is plated with a reflective film for simultaneously reflecting laser and millimeter wave, and the area out of the rectangular area on the center of the front side of the compound secondary mirror is plated with a film for reflecting laser but transmitting millimeter wave. With small volume, light weight and low power consumption, the invention integrates the optical antenna for laser communication and the electric antenna for millimeter wave communication which can simultaneously perform the communication functions of laser light wave and millimeter wave.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to wireless optical communication, millimeter wave communication and remote sensing technology, and in particular to a reflective transmitting and receiving integrated antenna combined and shared by laser light wave communication and millimeter wave communication. Background technique [0002] Both wireless optical communication and millimeter wave communication have the characteristics of high transmission code rate, confidentiality, and anti-interference, and both play an important role in the field of communication technology. Due to the interaction between the atmospheric molecules and particles in the atmospheric channel and the transmitted light waves and millimeter waves, the transmission effect of wireless optical communication is very poor in foggy days, and the transmission effect of millimeter wave communication is very poor in rainy days. Communication reliability under ...

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Problems solved by technology

[0003] At present, the design of "laser light wave/millimeter wave photoelectric integrated communication system" at home and abroad generally adopts the design method of separate antenna combination. The antenna system adopts two sets of separate antennas respectively suit...

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