Patent ID: 7535423
Filing Date: 2009-05-19
Classification: H01Q

Abstract:
1. A multiple-band monopole coupling antenna mounted into an electronic device, comprising: a dielectric board, a signal feed point located on the right side of the dielectric board; a low frequency antenna located on the dielectric board, one end of the low frequency antenna connects to the signal feed point, the length of the low frequency antenna matches the half length of low frequency waves which are used in the mobile communication; and a high frequency antenna located on the dielectric board and adjacent to the low frequency antenna, the length of the high frequency antenna equal to the length of the high frequency waves which are used in the mobile communication; wherein the low frequency antenna comprises a first fold wire, a straight wire, a second fold wire, a third fold wire and a fourth fold wire, the first fold wire located on the right side of the dielectric board, the back end of the first fold wire connects to the signal feed point, the straight wire located on the upper side of the dielectric board, the front end of the straight wire connects with the front end of the first fold wire, the front of the second fold wire located on the upper side, the end of the second fold wire located on the front side of the dielectric board, the front end of the second fold wire connects to the end of the rear end of the straight wire, the third fold wire located on the left side of the dielectric board, the front end of the third fold wire connects to the rear end of the second fold wire, the fourth fold wire arranged on the upper side, the rear end of the fourth fold wire connects to the rear end of the third fold wire, the fourth fold wire never connects to the straight wire or the second fold wire.