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Enhanced efficiency in terahertz SIW array antennas.

Wu Pan, Kuan Ye, Renpu Li

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    |August 12, 2025
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    Summary
    This summary is machine-generated.

    A novel terahertz slotted waveguide array antenna using substrate integrated waveguide (SIW) technology is presented. This antenna offers a wide bandwidth and high gain for terahertz applications.

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    Area of Science:

    • Electromagnetics
    • Antenna Theory
    • Terahertz Technology

    Background:

    • Substrate Integrated Waveguide (SIW) technology is crucial for developing compact and efficient antennas.
    • Efficient feeding and transition mechanisms are required for high-frequency antenna designs.
    • Terahertz (THz) frequencies offer unique opportunities for communication and imaging.

    Purpose of the Study:

    • To propose a novel terahertz slotted waveguide array antenna.
    • To investigate a Rectangular Waveguide to Substrate Integrated Waveguide (RWG-SIW) transition for vertical feeding.
    • To evaluate the antenna's performance in terms of bandwidth, gain, and efficiency.

    Main Methods:

    • Design and simulation of a terahertz slotted waveguide array antenna.
    • Development of an RWG-SIW transition for vertical signal transfer.
    • Characterization of the antenna's impedance bandwidth, gain, and radiation efficiency.

    Main Results:

    • The proposed antenna achieved a -10 dB impedance bandwidth from 236.5 to 248.8 GHz.
    • A peak gain of 13.2 dBi was obtained.
    • The maximum radiation efficiency reached 87%.

    Conclusions:

    • The developed terahertz slotted waveguide array antenna with RWG-SIW transition is suitable for THz applications.
    • The antenna demonstrates excellent performance metrics for terahertz communication and imaging.
    • This design contributes to advancements in terahertz antenna technology.