title: Reconfigurable all-dielectric metamaterial frequency selective surface based on high-permittivity ceramics.
abstract: Based on effective medium theory and dielectric resonator theory, we propose the design of reconfigurable all-dielectric metamaterial frequency selective surfaces (FSSs) using high-permittivity ceramics. The FSS is composed of ceramic resonators with different band stop responses under front and side incidences. By mechanically tuning the orientation of the ceramic resonators, reconfigurable electromagnetic (EM) responses between two adjacent stopbands can be achieved. The two broad stopbands originate from the first two resonant modes of the ceramic resonators. As an example, a reconfigurable FSS composed of cross-shaped ceramic resonators is demonstrated. Both numerical and experimental results show that the FSS can switch between two consecutive stopbands in 3.55-4.60 GHz and 4.54-4.94 GHz. The design method can be readily extended to the design of FSSs in other frequencies for high-power applications.
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Liyang
authors.initials: L
authors.lastname: Li
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Jiafu
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Ma
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Hongliang
authors.initials: H
authors.lastname: Du
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Jieqiu
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Science, Air Force Engineering University, Xi'an 710051, Shaanxi, China.
authors.forename: Shaobo
authors.initials: S
authors.lastname: Qu
authors.affiliation: Electronic Materials Research Laboratory, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Xu