A Miniaturized Dual-Band FSS With Controllable Frequency Resonances

A novel dual-band miniaturized frequency-selective surface (FSS) is proposed in this letter. The proposed FSS is composed of cross dipole aperture element combined with meandered monopole aperture element. The single layer FSS provides two pass-bands centered at 5.13 and 8.85 GHz with bandwidth of 1.27 and 1.33 GHz, respectively. The two pass-band frequencies of the designed FSS can be controlled independently by simply changing structure parameters of the unit cell. In addition, the dual-band FSS designed using the miniaturized element exhibits excellent resonance stability for different polarizations and incident angles. A prototype of the proposed FSS is fabricated and measured. A good agreement between the simulation and the measured results is obtained, which demonstrates the stable performance of the FSS.