Miniaturized Bandstop Frequency-Selective Structure Using Stepped-Impedance Resonators

@article{Li2012MiniaturizedBF,
  title={Miniaturized Bandstop Frequency-Selective Structure Using Stepped-Impedance Resonators},
  author={B. Li and Zhongxiang Shen},
  journal={IEEE Antennas and Wireless Propagation Letters},
  year={2012},
  volume={11},
  pages={1112-1115}
}
This letter describes a miniaturized bandstop frequency-selective structure (FSS) based on the stepped-impedance resonator (SIR). The FSS consists of a two-dimensional periodic array of vertical microstrip SIRs for thickness reduction. A shunt capacitor connecting the SIR center and ground is employed to widen the operating bandwidth and to improve the quasi-elliptic filtering response. It is shown that more than 40% thickness reduction of the FSS can be realized by choosing a small impedance… Expand
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