A Wideband Polarization-Reconfigurable Water Dielectric Resonator Antenna

作者：Wang, Min; Chu, Qing-Xin^*

来源：IEEE Antennas and Wireless Propagation Letters, 2019, 18(2): 402-406.

DOI：10.1109/LAWP.2019.2892503

• Broad bandwidth
• dielectric dense patch antenna
• dielectric resonator antenna
• reconfigurability
• water antenna

A water dielectric resonator antenna with reconfiguration and broadband characteristics is presented. By injecting purewater into various cavities of the Plexiglass holder, the antenna can be switched among left-hand circular polarization, right-hand circular polarization, and linear polarization in almost the same operating frequency range. With the high relative permittivity, water acts as a dielectric resonator as well as an interface similar to electric wall to form a broad axial-ratio bandwidth. Thus, a broad usable bandwidth is measured to be over 22%, and the measured radiation efficiency and realized gain centralize in 60%-70% and 3-4 dBi, respectively.

• 出版日期2019-2
• 单位华南理工大学