Patent ID: 7554503

Claim:
A wide band antenna comprising: a ground plane; a dielectric member being mounted on the ground plane and having a top surface, a bottom surface, a first side and a second side being opposite to the first side; and a radiating patch mounted on and supported by the dielectric member, mounted on the ground plane and having a main conductor mounted on the dielectric member and having a resonant length, a first resonant mode, two ends, a first edge and a second edge being opposite to the first edge; a feeding conductor is mounted on the dielectric member, capable of generating inductance effect and having a connecting end and a feeding end being opposite to the connecting end; a coupling conductor mounted on the dielectric member, connected to the connecting end of the feeding conductor and having a first coupling member formed on and protruding from the connecting end of the feeding conductor and having a proximal end, a distal end and multiple first keys formed on and protruding transversely from the first coupling member toward the main conductor at intervals; a second coupling member formed on the first edge of the main conductor and having multiple second keys formed on and protruding transversely and perpendicularly from the first edge of the main conductor, extending respectively in the internals between the second keys; and a gap defined through the coupling conductor between the first and second coupling members, separating the first and second coupling members and having a width; an extension conductor formed on and protruding from the distal end of the first coupling member of the coupling conductor, mounted on the dielectric member and having a resonant length and a second resonant mode; and a shorting conductor formed on and protruding from the first edge of the main conductor, mounted on the dielectric member and connected to the ground plane.