Characterisation of electrical conductivity of silver printed FSS for cellular signals suppression

This paper proposes a silver printed double square loop FSS for cellular signals suppression at 880 - 960 MHz, 1710 - 1880 MHz and 1920 - 2200 MHz frequency bands. The conductivity of the stencil printed FSS structure deposited on glossy paper is determined. The optimized FSS prototype provides a maximum attenuation of more than 28.1 dB alongside with 320 MHz and 760 MHz bandwidth for the lower and upper resonance frequencies, respectively. Furthermore, the proposed structure also offers a stable frequency response for both TE and TM modes at normal and oblique incidence, up to 45°. The measured and simulated results are shown to be in a very good agreement with each other.