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Article Dans Une Revue IEEE Transactions on Antennas and Propagation Année : 2019

Circularly-Polarized Fabry-Perot Antenna Using a Hybrid Leaky-Wave Mode

Résumé

A spectral Green's function approach is developed here to analyze Fabry-Perot antennas for the generation of circular polarization. The structure consists of a single cavity, created between a partially reflective surface and a high impedance surface, fed by a low directive linearly polarized source. The elements in the antenna are characterized by tensor impedances. This frame allows to conceive a circularly polarized antenna supporting a single hybrid leaky-wave mode. By means of a residue analysis, it is demonstrated that the use of a single hybrid leaky mode is sufficient to generate circular polarization. The tool is validated by an antenna design matched over a relative bandwidth of 28.5% with an axial ratio lower than 3 dB.
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Dates et versions

hal-02152065 , version 1 (08-07-2019)

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Antoine Calleau, Maria Garcia-Vigueras, Hervé Legay, Ronan Sauleau, Mauro Ettorre. Circularly-Polarized Fabry-Perot Antenna Using a Hybrid Leaky-Wave Mode. IEEE Transactions on Antennas and Propagation, 2019, 67 (9), pp.5867-5876. ⟨10.1109/TAP.2019.2920266⟩. ⟨hal-02152065⟩
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