Low-Profile Low-Cost High Gain 60 GHz Antenna

A new design perspective that utilizes the diffracted fields from planar metallic sheets to implement high gain, low profile, and low-cost antenna at 60 GHz is presented. The proposed antenna is matched over the 60-GHz ISM band (57-64 GHz). The proposed antenna can be employed in a linear antenna array with one wavelength distance between the array elements without generating grating lobes. The proposed antenna structure is suitable for short range, low power applications. The proposed antenna is vialess planar structure. The simplicity of the structure is advantageous in relaxing the fabrication process requirements.