Design of a tuneable and broadband absorber using a switchable transmissive/reflective FSS
作者： Xianliang Zeng , Meng Gao , Linxi Zhang , Guobin Wan , Bin Hu
DOI: 10.1049/IET-MAP.2017.0691
关键词: Voltage 、 Broadband 、 Wideband 、 Diode 、 Electrical impedance 、 Optoelectronics 、 Frequency band 、 STRIPS 、 Biasing 、 Materials science
摘要: A new architecture for designing a tuneable wideband absorber using an active frequency selective surface (AFSS) is presented. The proposed AFSS composed of 2-D periodic array two opposite directional anchor-shaped metal strips printed on dielectric substrate with no metallic screen the back side, where positive-intrinsic-negative diodes as components are embedded between each strips. Biasing at different voltages to turn ON and OFF diodes, structure can react switchable transmissive reflective states. While, consists designed back-plane, separated by foam spacer. By dynamically changing bias voltage impedance be adjusted match free space its resonant frequencies. Doing this, presented able offer reflectivity level less than -10 dB over wide band from 7 13.1 GHz. detailed design transmissive/reflective reported. Both simulated measured results have verified performances. Furthermore, good agreement measurement simulation has been obtained.
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