Patent ID: 9601825
Date: 2017-03-21
CPC Classifications: H01Q,H04B

Claim:
1. A mobile device, comprising: a ground element; a first antenna; a second antenna; and a filter, disposed between the first antenna and the second antenna, wherein the filter comprises a main branch and a tuning branch, and the tuning branch is coupled through the main branch to the ground element; wherein the main branch defines a notch, a connection end of the tuning branch is coupled to the main branch, and an open end of the tuning branch extends into the notch; wherein the filter further comprises a coupling branch, a connection end of the coupling branch is coupled to the tuning branch, and an open end of the coupling branch extends toward the ground element; wherein the main branch has an L-shape, the tuning branch has a rectangular shape, the coupling branch has a corner shape, and a line width of the tuning branch is greater than a line width of the main branch and a line width of the coupling branch.