Patent ID: 7710330

Claim:
A dual-band inverted-F antenna, comprising: a radiation element, comprising: a loop portion; a first radiation portion, connected to the loop portion, for wirelessly transmitting/receiving a first band signal; and a second radiation portion, having one end connected to the loop portion and the other end extending toward the first radiation portion, for wirelessly transmitting/receiving a second band signal; a ground element, spaced from and facing the radiation element; a conductive pin, located between the radiation element and the ground element, and having two ends connected to the radiation element and the ground element respectively; and a signal feed-in portion, connected to the loop portion, for feeding in the first band signal and the second band signal to the loop portion, then transmitting the signals to the first radiation portion, the second radiation portion, and the conductive pin through the loop portion, and receiving the first and the second band signals fed out from the first radiation portion and the second radiation portion through the loop portion respectively, wherein the loop portion comprises: a first metal plate, connected to the signal feed-in portion, and having one end connected to the first radiation portion, for receiving the first band signal and the second band signal fed in by the signal feed-in portion, and transmitting the first band signal to the first radiation portion; a second metal plate, with one side perpendicularly connected to the first metal plate, and having one end connected to the second radiation portion, wherein the second metal plate is parallel to the ground element, for transmitting the second band signal transmitted by the first metal plate to the second radiation portion; and a third metal plate, perpendicularly connected to the second metal plate, and perpendicularly extending toward the ground element so as to be connected to the conductive pin.