Mobile device

摘要

A mobile device includes a ground element, a first antenna, a second antenna, and a filter. The filter is disposed between the first antenna and the second antenna. The filter includes a main branch and a tuning branch. The tuning branch is coupled through the main branch to the ground element. The first antenna and the second antenna cover the same operation frequency band. The filter is configured to enhance the isolation between the first antenna and the second antenna in the operation frequency band.

主权项

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.