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A prototype high-speed optically-steered X-band phased array antenna.

Pengfei Wu, Suning Tang, Daniel E Raible

    Optics Express
    |February 12, 2014
    PubMed
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    We created an optically-steered X-band phased array antenna prototype. This antenna offers multi-band, multi-beam capabilities with agile, vibration-free radio frequency beam steering using optical true-time delays.

    Area of Science:

    • Antenna Engineering
    • Optical Signal Processing
    • Radio Frequency Systems

    Background:

    • Phased array antennas are crucial for modern wireless communication.
    • Traditional beam steering methods face limitations in speed and agility.
    • Optical control offers potential for enhanced antenna performance.

    Purpose of the Study:

    • To develop a prototype optically-steered X-band phased array antenna.
    • To demonstrate multi-band and multi-beam operation capabilities.
    • To achieve agile and vibration-free radio frequency beam steering.

    Main Methods:

    • Utilized high-speed wavelength tunable lasers for optical true-time delays.
    • Employed a dispersive optical fiber link for signal transmission.

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  • Integrated optical true-time delay with X-band phased array antenna architecture.

    • Main Results:

    • Successfully developed a functional prototype of an optically-steered phased array antenna.
    • Demonstrated multi-band and multi-beam operation.
    • Achieved agile, broadband, and vibration-free radio frequency beam steering over a large angle.

    Conclusions:

    • Optical true-time delays provide an effective method for agile RF beam steering.
    • The developed prototype shows promise for advanced radar and communication systems.
    • Optically-steered antennas offer significant advantages in performance and stability.