Compact size, low profile, dual wideband, quasi-yagi, multiple-input multiple-output antenna system

A compact size, low profile antenna with high gain, wide dual-band coverage, highly directional radiation pattern, high front to back ratio and good efficiency for user terminal devices and small form factor electronics including mobile phones and other compact wireless devices, wherein said antenna is in MIMO configuration and mimics the features of a Yagi-Uda antenna, said antenna comprising:

• a dielectric substrate;
• an electrically conductive ground plane on the substrate, said ground plane acting as a reflector;
• a driven element including an arcuate semi-loop;
• a director element coplanar with and adjacent to the driven element to obtain high directivity and a highly directional radiation pattern;
• and
• a transmission line for conveying RF power to the antenna to excite the driven element;
• and wherein:
• the arcuate semi-loop driven element has opposite ends and an apex;
• a meandered leg is connected with a respective one of each of said opposite ends of said arcuate semi-loop;
• and
• said driven element comprises said arcuate semi-loop and said meandered legs.