Patent ID: 7113133

Claim:
A dual-band inverted-F antenna comprising: a primary radiating member comprising a first metallic strip, a second metallic strip integrally formed with the first metallic strip, a feeding point on the second metallic strip, and a first shorting point on the second metallic strip wherein a first current path is created in the first metallic strip such that the antenna is adapted to operate in a first low frequency operating mode, and a second current path shorter than the first current path is created in the second metallic strip such that the antenna is adapted to operate in a second high frequency operating mode; a secondary radiating member for increasing an operating frequency of the antenna when the antenna operates in the second high frequency operating mode, the secondary radiating member comprising a second shorting point; a ground surface; a dielectric substrate; a branch line shorting strip having one end electrically connected to the ground surface, and a bifurcation distal its one end, the bifurcation including a first branch electrically connected to the first shorting point and a second branch electrically connected to the second shorting point; and a feeding member formed of a metallic strip having one end electrically connected to the feeding point and the other end electrically connected to a system signal source for sending and receiving electromagnetic waves.