Wide bandwidth antenna device

An antenna device, comprising:

• a dielectric substrate;
• a first antenna formed on said dielectric substrate, and including
• a first feeding element that has opposite ends,
• a feeding point that is disposed at one of said ends of said first feeding element, and
• first and second radiating elements that respectively extend from opposite sides of the other one of said ends of said first feeding clement in opposite directions;
• a parasitic coupler formed on said dielectric substrate, disposed proximate to said first radiating element, and including a first grounding element, and a coupling element that extends from said first grounding element and that is electromagnetically coupled to said first radiating element;
• and
• a second antenna formed on said dielectric substrate, spaced apart from said parasitic coupler in a first direction, disposed proximate to said second radiating element, and including
• a second feeding element that has opposite ends,
• a second feeding point that is disposed at one of said ends of said second feeding element,
• third and fourth radiating elements that respectively extend from opposite sides of the other one of said ends of said second feeding element, and
• a second grounding clement that extends from said second feeding element, wherein:
• said first antenna is disposed between said parasitic coupler and said second antenna,
• said first radiating element extends in the first direction away from said second antenna, and
• said second radiating clement extends in the first direction away from said parasitic coupler.