Progress In Electromagnetics Research C
ISSN: 1937-8718
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By H. Li, Q. Cao, and Y. Wang

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A miniaturized frequency selective surface (MFSS) that has very stable performance is designed based on the stepped-impedance element (SIE) structure. Significant couplings can be introduced by overlapping one metallic layer above the SIE structure. The large overlapping areas between the two metallic layers is beneficial to further miniaturizing the element size. Therefore, the physical size of the MFSS unit cell can be reduced to 0.054λX0.054λ. In addition, the MFSS is proved to excellent stability towards incident angles (up to 75o) and polarizations. A careful equivalent circuit model is presented to explain the physical principle of the proposed design. Finally, a prototype is fabricated and tested, and the simulation results are in agreement with the experimental observations.

H. Li, Q. Cao, and Y. Wang, "A Novel Miniaturized Frequency Selective Surface with Very Stable Performance," Progress In Electromagnetics Research C, Vol. 75, 131-138, 2017.

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