Circularly polarised planar antenna excited by coplanar waveguide feedline

Abstract : A circular patch antenna fed by a coplanar waveguide (CPW) line is proposed to obtain circular polarisation (CP). The CP results from the combined excitation of the patch by an inclined slot (integrated in the CPW feedline) and the CPW feedline termination. The asymmetrical characteristics of the excitation involve the excitation of both the odd and the even modes in the CPW line.
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Hakim Aïssat, Laurent Cirio, Marjorie Grzeskowiak, Jean-Marc Laheurte, Odile Picon. Circularly polarised planar antenna excited by coplanar waveguide feedline. Electronics Letters, IET, 2004, 40 (7), pp.402-403. ⟨10.1049/el:20040276⟩. ⟨hal-00692958⟩

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