paper 140316102934

A dual-band frequency selective surface (FSS) is presented. The complementary hexagonal loop resonators are used in each FSS unit cell to obtain this ability. We designed three styles FSS composed of circle loop squared loop and hexagonal loop arranged in a 2-D periodic lattice. These FSSs are engineered a hybrid of three layers closely coupled FSS. The outer layers of elements and a middle layer of complementary elements are etched either side of a dielectric substrate. The proposed FSS structure is independent of incident polarization and angle because of centrosymmetric of the unit cell. We investigate the frequency responses of such periodic structures induced field distribution. It is demonstrated that transmission zeros occur in passbands formed by the mode of aperture resonance and aperture coupled patch resonance. By simulating their transmission and reflection coefficients under normal and oblique TE and TM incidences, show that it has a stable frequency response at different oblique incident angles and the advantages of high selectivity.

Jiafu Wang

Yongfeng Li

Yongqiang Pang

Shaobo Qu

Mingbao Yan

Hangying Yuan

Zhiyuan Zhang

Jieqiu Zhang

Lin Zheng

Hang Zhou