Patent ID: 8378896

Claim:
A wide band antenna, comprising: a radiation element being a rectangular shape comprising a first side and a second side, the lengths of the first side and the second side being not equal; a ground element; a dielectric element positioned between the radiation element and the ground element; a connector; a first microstrip feeder and a second microstrip feeder, one end of the first microstrip feeder being connected to the first side of the radiation element, one end of the second microstrip feeder being connected to the second side of the radiation element, the other ends of the first and second microstrip feeder being connected to the connector, wherein a first frequency acquired by the first microstrip feeder is: f 2 = 0.49 ⁢ V L 2 ⁢ ɛ r , a second frequency acquired by the second microstrip feeder is: f 2 = 0.49 ⁢ V L 2 ⁢ ɛ r , where L 1 is a length of the first side of the radiation element, L 2 is a length of the second side of the radiation element, and L 1 is not equal to L 2 ; ∈ r represents a dielectric coefficient of the dielectric element, V represents a velocity of electromagnetic wave.