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The Antenna Complex01:15

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Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
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Updated: Jul 17, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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Antenna array-based metasurface for multi-scenario wide-angle polarization-insensitive radar cross section reduction.

Zan Kui Meng, Yan Shi

    Optics Express
    |June 11, 2024
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    Summary

    This study introduces a novel metasurface design for wide-angle, polarization-insensitive radar cross section (RCS) reduction. The method effectively minimizes RCS by absorbing and canceling electromagnetic waves, offering versatile applications.

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    Area of Science:

    • Electromagnetic metasurfaces
    • Antenna array design
    • Radar cross section reduction

    Background:

    • Metasurfaces offer advanced control over electromagnetic waves.
    • Wide-angle and polarization-insensitive RCS reduction remains a challenge.
    • Existing methods may lack flexibility for diverse applications.

    Purpose of the Study:

    • To propose a novel antenna array-based metasurface design for wide-angle and polarization-insensitive RCS reduction.
    • To enable flexible and versatile RCS reduction solutions.
    • To demonstrate the efficacy of the proposed design in various scenarios.

    Main Methods:

    • A metasurface subarray design utilizing a dual-element antenna array.
    • Integration of Wilkinson power dividers and a microstrip line with a lumped resistor.
    • Employment of dual-polarized wide-beam antennas for broad electromagnetic wave response.

    Main Results:

    • The metasurface effectively reduces RCS through absorption and cancellation mechanisms.
    • Demonstrated performance in scenarios including integrated antennas and distributed arrays.
    • Simulated and measured results confirm the proposed method's effectiveness.

    Conclusions:

    • The proposed metasurface design provides a new pathway for flexible and versatile RCS reduction.
    • The method is applicable to a variety of RCS reduction scenarios.
    • This work advances the development of stealth technologies.