Mobile communication device and antenna structure thereof

摘要

A mobile communication device (1) having an antenna structure includes a grounding element (10) and an antenna element (11). The grounding element (10) includes a main ground (101) and a protruded ground (102) being connected to an edge of the main ground (101). Antenna element (11) includes a feeding portion (13) and a radiating portion (14). The feeding portion (13) includes a feeding point (131), a first strip (134) and a second strip (135). The first strip (134) and the second strip (135) are both connected to the feeding point (131). The radiating portion (14) includes a first open end (15), a second open end (16) and a shorting point (141) which is connected to the protruded ground (102) by a short-circuiting strip (142). There is a first coupling gap (17) between the first strip (134) and a first section (151) of the radiating portion (14) having the first open end (15). There is a second coupling gap (18) between the second strip (135) and a second section (161) of the radiating portion (14) having the second open end (16) .