We demonstrate a novel, low-profile, compact antenna consisting of a rectangular dielectric resonator and a quasi-planar surface mounted horn. The proposed structure shows a gain of 8.5 dBi at 6.0 GHz, giving a 4.9 dB increase compared to the standard dielectric-resonator antenna (DRA) without a surface mounted horn. Total height of the fabricated structure is only 0.172 lambda0, or 8.61 mm at 6.0 GHz, and the aperture size is 0.96 lambda0 times 0.86 lambda0 or 48.1 mm times 43.1 mm. The cross-polarization level of the antenna is less than 33 dB in both E- and H-planes