Patent ID: 8896494

Claim:
A monopole wideband antenna, adapted to be formed on a printed circuitboard, comprising: an antenna unit, composed of a radiation element and a frequency adjustment element that are independently disposed with respect to each other, while allowing the radiation element to be further configured with a first extension element, a second extension element and a signal feed point in a manner that the first extension element is formed extending in a first direction into a first impedance matching adjustment area; the second extension element is connected to the first extension element by one end thereof and is extending in a second direction into a primary radiation area, and the signal feed point is connected to the joint of the first and the second extension elements and is extending in a third direction, and the frequency adjustment element is arranged at a position sandwiched between the first and the second extension elements; a ground unit, disposed neighboring to the signal feed point; and a second impedance matching adjustment area, being an area sandwiched between the ground unit and the antenna unit.