POLARIZATION-INSENSITIVE ACTIVE FREQUENCY SELECTIVE SURFACE

摘要

The present invention includes a dielectric substrate having a square structure in which a metal pattern is mounted on an upper/lower layer in an active frequency selective surface, wherein varactor diodes are mounted in a cross-array on the upper layer of the dielectric substrate. In the lower layer of the dielectric substrate, two patches are symmetrically connected through a pin diode. Accordingly, the AFSS provided by the present invention is advantageous in that it is possible to switch between transmission mode and absorption mode and frequency tuning for the operation modes without being sensitive to polarization. have. In particular, the AFSS of the present invention is implemented by using a pin diode (pin diode) and a varactor diode (varactor diode), short response times (short response times), wide tuning ranges (wide tuning ranges), compact size ( compact size), and ease of use (ease of use).