US Patent No. 9,077,077

MOBILE COMMUNICATION DEVICE AND ANTENNA DEVICE


Patent No. 9,077,077
Issue Date July 07, 2015
Title Mobile Communication Device And Antenna Device
Inventorship Kin-Lu Wong, Kaohsiung (TW)
Ting-Wei Kang, Kaohsiung (TW)
Shih-Wei Hsieh, Taipei (TW)
Wei Yu Chen, New Taipei (TW)
Assignee MEDIATEK SINGAPORE PTE. LTD., Singapore (SG) NATIONAL SUN YAT-SEN UNIVERSI...

Claim of US Patent No. 9,077,077

1. A mobile communication device, comprising:
a system circuit board, comprising a system ground plane; and
an antenna, comprising:
an antenna substrate, substantially parallel to the system ground plane;
a first radiation element, disposed on the antenna substrate;
a second radiation element, disposed on the antenna substrate;
an antenna ground plane, disposed on the antenna substrate, and coupled to the system ground plane; and
a transmission line, disposed on the antenna substrate, coupled to the first and second radiation elements, and having a feed
point;

wherein the system ground plane comprises an additional ground which overlaps with the antenna ground plane partially or completely;
wherein the antenna substrate is not a layer of the system circuit board.