In this paper, we propose a hemispherical reconfigurable frequency selective surface (FSS) using water channels. The switching between band-pass and band-stop states is possible since the water with a high dielectric constant can control the effective permittivity of the structure. We simulate and fabricate the FSS and measure the radiation pattern of FSS enclosed horn antenna to check the reconfigurable characteristic of the hemispherical FSS. The simulated results show a good agreement with the measured results.
This work was supported in part by the Low Observable Technology Research Center Program of Defense Acquisition Program Administration and Agency for Defense Development, in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) through the Ministry of Science and ICT under Grant 2017R1A2B4001903, and in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education under Grant 2015R1A6A1A0303 1833.
