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Visible light communication biconvex lens antenna and its design method for miniaturization of receiving end

A technology of visible light communication and lenticular lens, applied in the field of visible light communication and optical antenna, can solve the problems of difficult miniaturization, excessive imaging size, and restrict the miniaturization of the receiving end, and achieve miniaturization, high robustness, and low Achieving the effect of complexity and cost

Active Publication Date: 2021-10-22
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

However, the optical system based on dichroic mirrors needs to use multiple dichroic mirrors and convex lenses. Large size restricts the miniaturization of the receiving end

Method used

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  • Visible light communication biconvex lens antenna and its design method for miniaturization of receiving end
  • Visible light communication biconvex lens antenna and its design method for miniaturization of receiving end
  • Visible light communication biconvex lens antenna and its design method for miniaturization of receiving end

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Embodiment

[0036] One of the candidates for high-speed visible light communication is parallel visible light communication based on multi-color multiplexing. However, the existing communication systems face many challenges such as high system complexity and large size. In this embodiment, a dual-lens-based The optical imaging system, by selecting a lens combination with reasonable parameters and adjusting the position parameters, can form a narrow and clearly separated spot at the receiving end, which effectively solves the problem of system complexity and miniaturization. The block diagram of the optical system in the embodiment is as follows figure 2 As shown, the originating two-stage optical lens model is shown in Table 1.

[0037] Table 1

[0038] lens diameter / mm Focal length / mm shape model L1 45 32.1 spherical convex ACL4532U-A L2 75 100 plano-convex LA1238-A

[0039] In the implementation example, for the distance x between the first-st...

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Abstract

The invention discloses a visible light communication biconvex lens antenna oriented to the miniaturization of the receiving end and a design method thereof. In the long-distance communication scene, through the combination design of the sending end biconvex cascaded lens antennas, a smaller-sized clear antenna can be obtained at the receiving end. Separating the light spots and collecting each light spot at the receiving end for independent reception can realize the parallel transmission and communication of multi-color or even the same-color visible light, and can effectively achieve the miniaturization purpose of the high-speed visible light parallel communication system. First, the use of the biconvex lens structure can present a small-sized separated spot on the receiving end plane, achieving the purpose of system miniaturization. Second, through the independent reception of the separated light spots, the use of optical filters and dichroic mirrors is avoided, which effectively reduces the complexity and cost of system implementation. Third, the adjustment of the object distance of the first-stage lens and the distance between the two-stage lenses can realize the adjustment of the imaging size and imaging position. The system has high robustness and can well adapt to different communication occasions .

Description

technical field [0001] The invention relates to the technical field of visible light communication and the field of optical antennas, in particular to a visible light communication biconvex lens antenna and a design method thereof for terminal miniaturization. Background technique [0002] Visible light communication (visible light communication, VLC) uses the visible light spectrum to transmit data information. It meets the communication needs while taking into account the lighting needs. It has many advantages such as low construction cost, free from electromagnetic wave interference, no licensed spectrum and good confidentiality performance. Wireless transmission at a rate of up to Gbps has been achieved, and the LED-based high-efficiency lighting industry has developed rapidly. Visible light communication is expected to be widely used, so it has attracted widespread attention at home and abroad. [0003] A block diagram of an actual deployment of a visible light communic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/08
CPCH01Q15/08
Inventor 于子晨魏佳琦龚晨黄诺徐正元
Owner UNIV OF SCI & TECH OF CHINA
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