Wideband Dual-Polarized Magnetoelectric Dipole Antenna Arrays for Millimeter Wave Applications
DescriptionThe next generation mobile communication service -“5G”- will be launched in 2020, which will be able to provide wirelessly very high data rate for supporting entertainment, investment, education, surveillance, group chatting, and so on. The success in mobile communications promotes the growth of many other wireless applications, including RFID and radar sensors. In parallel with this development, much effort has been attracted to the R&D of antenna technologies to meet the stringent requirements imposed by modern wireless systems. The current trend is to develop antennas that are low in profile, small in size, wide in bandwidth for covering multiple operating frequency bands, reconfigurable in radiation patterns and operating frequencies, in addition to the basic requirements of low fabrication costs and high antenna efficiency. Antennas that can be operated efficiently at millimeter-waves and terahertz frequencies are increasing in demand, as the “5G” will have channels operated at millimeter wave frequencies and the “6G” may be operated at terahertz frequencies. The wideband magnetoelectric dipole antenna was proposed by the principal investigator a decade ago. The importance of this invention is confirmed by his achievement in winning the prestigious 2017 Kraus Antenna Field Award from the international IEEE Antennas and Propagation Society. The antenna is not only wide in bandwidth but also excellent in other antenna characteristics. At lower microwave frequencies, the antenna can be constructed purely using metallic plates at low costs. At millimeter wave frequencies, it can also be fabricated by cost effective printed circuit techniques. In this project, the magnetoelectric dipole concept is extended for the development of dual polarized millimeter wave antennas and arrays with the objective to achieve wide bandwidth, compact size and easy packaging with integrated circuits. A dual polarized antenna has two input/output ports that can be used as a diversity antenna and employed in MIMO system for telecommunications. For weather radar applications, using a dual-polarized antenna can transmit and receive vertically polarized and horizontally polarized waves simultaneously for enhancing significantly the measurement information. The dual-polarized planar wideband millimeter-wave antenna arrays to be developed will find many applications in the future wireless communications, radars and sensors.
|Effective start/end date||1/01/19 → 24/06/22|