"Phased array"@en . "Ultrathin"@en . . "de Ara\u00FAjo" . "Huygens source"@en . <0000-0002-6979-1563> . "Circular polarization"@en . "Dielectric resonator antenna"@en . "Half-space radiation"@en . "Jos\u00E9 Bruno de Ara\u00FAjo" . "Microstrip"@en . "Broadband"@en . "Jos\u00E9 Bruno" . "Metamaterial"@en . . "5c52d83cdf17a3ee405ed54653bc2475" . "Parameter retrieval"@en . "Metamaterial absorber"@en . "Equivalent circuit"@en . . "Electromagnetic band-gap"@en .