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The structures using periodic surfaces (here is frequency selective surface, FSS) can get band-pass characteristics, similar to a classical microwave filter. In this paper, we focus on the sensitivity analysis for the resonant frequency and bandwidth of the parameters of a double-layered band-pass structure. We use some methods and other techniques to evaluate sensitivity of the parameters in the...
In this paper we have proposed a metamaterial based composite right-left handed transmission line new structure with microstrip gap capacitor and stub inductors shorted to the ground plane by via to achieved miniature filters with two transmission zeros and wide upper-stopband performance. The proposed designs take advantage of different aspects of metamaterial behaviour to achieve miniature and wide...
A novel one-dimensional (1-D) defected ground structure (DGS) for the microstrip line is proposed. Different from the square-shaped DGS (SSDGS), the improved DGS (IDGS), which hold four stubs to disturb the fields in the square defected pattern, improved the effective capacitance and inductance at high frequencies, and provide a very wide bandgap characteristic with only one or more unit lattices...
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