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Continuous zoom antenna for mobile visible light communication.

Xuebin Zhang, Yi Tang, Lu Cui

    Applied Optics
    |November 13, 2015
    PubMed
    Summary

    This study introduces a compact, continuous zoom antenna for mobile visible light communication (VLC). The novel design offers a wide field of view and high gain, enhancing stability and mobility in VLC systems.

    Area of Science:

    • Optical Engineering
    • Wireless Communication
    • Antenna Design

    Background:

    • Mobile visible light communication (VLC) systems require antennas with adaptable fields of view (FOV) and high gain for robust performance.
    • Existing antenna solutions may lack the necessary compactness, zoom capability, or cost-effectiveness for widespread mobile VLC adoption.

    Purpose of the Study:

    • To design and simulate a continuous zoom antenna optimized for mobile visible light communication (VLC).
    • To evaluate the performance of the designed antenna in various communication scenarios, comparing it against a fixed-focus antenna.

    Main Methods:

    • A continuous zoom antenna was designed utilizing a right-angle reflecting prism to reduce thickness and spherical lens surfaces for lower cost.
    • The antenna's optical path was folded to decrease overall dimensions.

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  • An indoor VLC system model was established to simulate performance in diverse environments.

    • Main Results:

    • The designed antenna achieved a zoom ratio of 2.44, a field of view (FOV) range of 18°-48°, a system gain of 16.8, and a compact size of 18 mm×6 mm.
    • Simulations demonstrated that the continuous zoom antenna provides a large FOV and high gain.
    • Comparative analysis showed improved stability, mobility, and environmental applicability over fixed-focus antennas.

    Conclusions:

    • The developed continuous zoom antenna is suitable for mobile VLC applications, offering significant advantages in FOV and gain.
    • The antenna's design, featuring a folded optical path and spherical lenses, results in a low-cost, compact, and high-performance solution.
    • The system exhibits enhanced operational characteristics, making it adaptable to various mobile and multi-environment VLC scenarios.