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Related Experiment Video

Updated: Dec 14, 2025

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
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Real-time object tracking using a leaky THz waveguide.

Yasith Amarasinghe, Rajind Mendis, Daniel M Mittleman

    Optics Express
    |July 19, 2020
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a 2D radar system for terahertz (THz) imaging, enabling real-time object tracking with high accuracy. The system also detects objects without a direct line-of-sight, expanding sensing capabilities.

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    Area of Science:

    • Electromagnetics
    • Radar Systems
    • Terahertz Technology

    Background:

    • Traditional radar systems face limitations in real-time tracking and non-line-of-sight detection.
    • Terahertz (THz) frequencies offer unique properties for high-resolution sensing but require advanced system designs.

    Purpose of the Study:

    • To develop and demonstrate a 2D radar system operating in the THz region.
    • To achieve real-time object tracking with high precision in both range and angle.
    • To enable sensing of objects with non-line-of-sight (NLOS) paths.

    Main Methods:

    • Utilized a leaky parallel-plate waveguide as the core component for THz wave propagation.
    • Employed broadband excitation to facilitate simultaneous multi-object localization.
    • Developed algorithms for real-time data processing and target tracking.

    Main Results:

    • Achieved real-time object tracking within 200 milliseconds.
    • Demonstrated high accuracy with 1 mm range resolution and 1.4° angular resolution.
    • Successfully detected objects via non-line-of-sight paths, showcasing the system's versatility.

    Conclusions:

    • The developed THz radar system offers advanced capabilities for real-time, high-accuracy object tracking.
    • Broadband excitation is key to enabling simultaneous multi-object detection and NLOS sensing.
    • This technology has potential applications in various fields requiring precise 3D imaging and tracking.