This paper proposes a dual-band antenna designed by combining a linearly polarised coplanar-waveguide-fed (CPW) slot antenna with a circularly polarised metasurface. Preliminary results have shown that circularly polarized (CP) radiation can be obtained from linearly polarized (LP) source antennas with the use of metasurface. The CPW-fed antenna printed on one side of the substrate is used as the source antenna. The metasurface consisting of 16 unit cells in a 4 × 4 arrangement is printed on the other side of the substrate. Two operating bands at around 3. 6 GHz and 4. 6 GHz are generated, with the radiation patterns in broadside direction. Good agreement between measured and simulated results is achieved. The directivities in operating band is around 6dB and 8dB respectively.

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Coplanar Waveguide Microstrip Antenna Linear Polarization.