Millimeter-wave research focuses on technologies and applications that utilize electromagnetic waves in the millimeter wavelength range, typically between 30 GHz and 300 GHz. This research area is important for various applications such as wireless communication, radar systems, imaging, and sensing. Millimeter-wave technology offers higher data rates, greater bandwidth, and improved security compared to traditional microwave frequencies. Researchers in this field work on developing new devices, antennas, and circuits to take advantage of the unique properties of millimeter-wave frequencies for various technological advancements.