An antenna device, comprising: a dielectric substrate having a first surface on a first side and a second surface on a second side opposing the first side; a plurality of cell conductive patches (1641; 211) formed on the first surface; a plurality of cell ground conductive electrodes (1210; 1410; 1612; 2312), each cell ground electrode (1210; 1410; 1612; 2312) formed on the second surface and in a footprint projected by a said cell conductive patch (1641; 211) onto the second surface; a main ground electrode (1401; 1610; 2310) formed on the second surface and separated from the cell ground conductive electrodes (1210; 1410; 1612; 2312), the main ground electrode (1401; 1610; 2310) located outside the footprints of the cell conductive patches (1641; 211) projected onto the second surface; a plurality of cell conductive via connectors (1642; 212), each cell conductive via connector (1642; 212) formed in the dielectric substrate to connect a said cell conductive patch (1641; 211) to a respective said cell ground conductive electrode (1210; 1410; 1612; 2312); a conductive feed line (1620; 2020; 2340) formed on the first surface and having a distal end located close to and electromagnetically coupled to a said cell conductive patch (1641; 211) to direct an antenna signal to or from the cell conductive patches (1641; 211); and a conductive stripe line (1210; 1410; 1612; 2312) formed on the second surface and connecting the cell ground conductive electrodes (1210; 1410; 1612; 2312) to the main ground electrode (1401; 1610; 2312); wherein the cell conductive patches (1641; 211), the dielectric substrate, the cell conductive via connectors (1642; 212), the cell ground conductive electrodes (1210; 1410; 1612; 2312), and the electromagnetically coupled conductive feed line (1620; 2340) comprise a composite left and right handed (CRLH) metamaterial structure. a dielectric substrate having a first surface on a first side and a second surface on a second side opposing the first side; a plurality of cell conductive patches (1641; 211) formed on the first surface; a plurality of cell ground conductive electrodes (1210; 1410; 1612; 2312), each cell ground electrode (1210; 1410; 1612; 2312) formed on the second surface and in a footprint projected by a said cell conductive patch (1641; 211) onto the second surface; a main ground electrode (1401; 1610; 2310) formed on the second surface and separated from the cell ground conductive electrodes (1210; 1410; 1612; 2312), the main ground electrode (1401; 1610; 2310) located outside the footprints of the cell conductive patches (1641; 211) projected onto the second surface; a plurality of cell conductive via connectors (1642; 212), each cell conductive via connector (1642; 212) formed in the dielectric substrate to connect a said cell conductive patch (1641; 211) to a respective said cell ground conductive electrode (1210; 1410; 1612; 2312); a conductive feed line (1620; 2020; 2340) formed on the first surface and having a distal end located close to and electromagnetically coupled to a said cell conductive patch (1641; 211) to direct an antenna signal to or from the cell conductive patches (1641; 211); and a conductive stripe line (1210; 1410; 1612; 2312) formed on the second surface and connecting the cell ground conductive electrodes (1210; 1410; 1612; 2312) to the main ground electrode (1401; 1610; 2312); wherein the cell conductive patches (1641; 211), the dielectric substrate, the cell conductive via connectors (1642; 212), the cell ground conductive electrodes (1210; 1410; 1612; 2312), and the electromagnetically coupled conductive feed line (1620; 2340) comprise a composite left and right handed (CRLH) metamaterial structure.