FREQUENCY SELECTIVE SURFACE STRUCTURE FOR MULTI FREQUENCY BAND

摘要

A FSS(Frequency Selective Surface) structure for a multiple frequency band is provided to separate a frequency band regardless of interval between reflection frequencies by forming each loop into a winding shape. A FSS structure for a multiple frequency band includes a plurality of unit cells. Each unit cell includes a dielectric layer and a loop. The loop has a fixed width. The loop is formed on the dielectric layer. The loop comprises an outer loop(31) and an inner loop(32). The inner loop is formed in an inner side of the outer loop. At least one part of the inner loop and the outer loop is formed into a winding shape. The dielectric layer comprises a first dielectric layer and a second dielectric layer. The first dielectric layer and the second dielectric layer have different dielectric constant.