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Two-dimensional beam scanning programmable bit array antenna with wide frequency tuning range and polarization

Hao Huang, Siyuan Zhao, Pengfei Gao

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    Summary
    This summary is machine-generated.

    This study presents a programmable bit array antenna with tunable frequency, polarization, and direction. This reconfigurable antenna offers enhanced flexibility for modern communication systems.

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    Area of Science:

    • Electrical Engineering
    • Electromagnetics
    • Antenna Theory

    Background:

    • Modern communication systems require antennas with adaptable characteristics.
    • Existing antennas often lack the flexibility to reconfigure multiple parameters simultaneously.

    Purpose of the Study:

    • To design and experimentally verify a novel programmable bit array antenna.
    • To achieve reconfigurable operating frequency, polarization state, and radiating direction.

    Main Methods:

    • An annular ring-structured radiator with varactor diodes for continuous frequency adjustment.
    • An asymmetrically reconfigurable printed Wilkinson power divider with a Schiffman phase shifter for polarization control.
    • Programmable radiating elements for two-dimensional beam scanning.

    Main Results:

    • Experimental validation of the antenna design over a 1.4–2.3 GHz continuous tuning range (48.6% bandwidth).
    • Demonstration of reconfigurable frequency, dual circular polarizations, and two-dimensional scanning capabilities.
    • Good agreement between simulation and experimental results, confirming design reliability.

    Conclusions:

    • The proposed programmable bit array antenna offers significant flexibility and versatility.
    • This reconfigurable antenna technology is well-suited for advanced communication systems.
    • The design validates the integration of multiple reconfigurable parameters in a single antenna array.