Metamaterials (MTMs) are synthetic electromagnetic materials with unique properties not found in natural materials. Their introduction has led to the development of innovative circuits with enhanced components. One notable design based on metamaterials is the composite right/left-handed transmission line (CRLH-TL) leaky-wave antennas (LWAs). These antennas provide continuous beam scanning that varies with frequency, allowing for adjustments from backfire to endfire, including a true broadside beam. The CRLH LWAs excel in impedance matching across their operational range and utilize a simple feeding mechanism. Their ability to map frequency to spatial locations enables the precise identification of unknown target positions by analyzing the spectral components of the returning wave. This capability facilitates real-time detection, with data acquisition speeds primarily influenced by the frequency sweep rate of the signal source. Moreover, the wide scanning angle of CRLH LWAs expands the sensor’s field of view. These features enable a variety of applications, including rapid 2-D beamforming, real-time remote sensing, vital sign monitoring, motion detection, and microwave imaging. Additionally, incorporating spatiotemporal modulation into CRLH LWAs can generate harmonic waves and improve physical layer security, thereby enhancing the safety of wireless communication. Everyone is welcome to attend the talk; admission is free. Complimentary refreshments will be provided. Co-sponsored by: IEEE North Jersey Section and Princeon Section Speaker(s): Chung-Tse Michael Wu Room: 240, Bldg: EE Building EE-240, 94, Brett Road, Rutgers University, Piscataway, New Jersey, United States, 08854