Polarization Independent Triple-Band Single Layer Frequency Selective Structure
نویسندگان
چکیده
This paper deals with single layer polarization independent Frequency selective surface (FSS) which acts as a triple band reject filter. The two stop bands are broad with percentage bandwidth 11.16% and 10.13% and one is narrow with 3.33% bandwidth. The band ratio is more than 1.5 and band separation is around 30-35dB. This design is investigated theoretically by ANSOFT® Designer software and practically by standard microwave test bench and the both results show a good agreement. Keywords— Frequency Selective Surface; Band reject filter; Band separation; Frequency ratio; Polarization Independent.
منابع مشابه
Dual-band, double-negative, polarization-independent metamaterial for the visible spectrum
We present what is to our knowledge the first dual-band negative index metamaterial that operates in the visible spectrum. The optimized four-functional-layer metamaterial structure exhibits the first double-negative (i.e., simultaneously negative permittivity and permeability) band in the red region of the visible spectrum with a figure of merit of 1.7 and the second double-negative band in th...
متن کاملDesign, Fabrication and Measurement of Two-Layered Quadruple-Band Microwave Metamaterial Absorber
The design, simulation, fabrication, and measurement of two structures of metamaterial absorbers (MA) is investigated at microwave frequency in this paper. By stacking of one layer structure on the top of each other, a two-layered structure is generated. The unit cell at each layer consisting of two sets of various circular and square patches are designed so that the structure exhibit quad band...
متن کاملWide-Angle Polarization Independent Triple Band Absorber Based on Metamaterial Structure for Microwave Frequency Applications
This paper presents a wide-angle polarization independent triple-band absorber based on a metamaterial structure for microwave frequency applications. The designed absorber structure is the combination of two resonators (resonator-I and resonator-II). The proposed absorber is ultrathin in thickness (0.012λo at lowest resonance frequency and 0.027λo at highest resonance frequency). The proposed ...
متن کاملDual-band, Dynamically Tunable Plasmonic Metamaterial Absorbers Based on Graphene for Terahertz Frequencies
In this paper, a compact plasmonic metamaterial absorber for terahertz frequencies is proposed and simulated. The absorber is based on metamaterial graphene structures, and benefits from dynamically controllable properties of graphene. Through patterning graphene layers, plasmonic resonances are tailored to provide a dual band as well as an improved bandwidth absorption. Unit cell of the design...
متن کاملDual-Band Evanescent-Mode Substrate Integrated Waveguide Band-pass Filter for WLAN Applications
A new multi-layer substrate integrated waveguide (SIW) structure is developed to design dual-band evanescent-mode band-pass filters (BPFs). Two independent series LC circuits are implemented by incorporating metallic irises in the different layers of the structure. The combination of the metallic irises with capacitive-plates is embedded inside the SIW to independently excite two evane...
متن کامل