Modeling the Resonant Behavior of Continuously Reconfigurable FSS Based on Four Arms Star Geometry

Authors

DOI:

https://doi.org/10.1590/2179-10742020v19i3930

Keywords:

Four arms star, modeling, reconfigurable FSS, varactor.

Abstract

A modeling of the resonant behavior of a continuously reconfigurable FSS is described in this paper. The FSS is based on four arms star geometry and its reconfigurability is achieved by the use of varactors. FSS, four arms star geometry and varactor principles are explained. Considering available a set of measured or numerical data, with frequency responses for different varactor capacitance values, the FSS equivalent circuit is stablished. Then, the varactor capacitance effect is included and the resonant behavior can be easily determined. After stablished, the FSS equivalent circuit can be applied even for a different varactor. In order to validate the proposed modeling, the equivalent circuit of a reconfigurable FSS using the varactor SMV1231 ( ) is obtained. The equivalent circuit results are compared to numerical (ANSYS) and measured results, verifying a good agreement. Following, for the same geometry, the equivalent circuit is applied to a reconfigurable FSS using the SMV1234 varactor ( ) and once more a good agreement between the results is observed, indicating the applicability of the proposed modeling, which is especially attractive for optimization process.

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Published

2020-08-26

How to Cite

Gomes Neto, A., Silva, J. C., Gomes Barboza, A., Barbosa Grécia Coutinho, I. ., de Oliveira Alencar , M. ., & Correia de Andrade, M. . (2020). Modeling the Resonant Behavior of Continuously Reconfigurable FSS Based on Four Arms Star Geometry . Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 19(3), 415-427. https://doi.org/10.1590/2179-10742020v19i3930

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Section

Regular Papers