The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 31, 2015

Filed:

Jul. 25, 2012
Applicants:

Jian-jhih Du, Taipei, TW;

Kuo-chang Lo, Miaoli County, TW;

Chih-yung Huang, Taichung, TW;

Inventors:

Jian-Jhih Du, Taipei, TW;

Kuo-Chang Lo, Miaoli County, TW;

Chih-Yung Huang, Taichung, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/24 (2006.01); H01Q 5/00 (2006.01); H01Q 9/42 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/243 (2013.01); H01Q 5/0058 (2013.01); H01Q 5/0062 (2013.01); H01Q 5/0072 (2013.01); H01Q 9/42 (2013.01);
Abstract

A multi-band inverted-F antenna including a ground plane, a signal feeding circuit, first, second and third main radiation parts is provided. The signal feeding circuit is electrically isolated from the ground plane and receives/transmits wireless signals. The first and the second main radiation part are both physically and electrically connected to the signal feeding circuit, and generate first and second frequency band operation modes for the inverted-F antenna, respectively. The third main radiation part is electrically isolated from the signal feeding circuit, the first and the second main radiation parts, and generates a third frequency band operation mode for the inverted-F antenna via to signal coupling between the first and the third main radiation parts and/or signal coupling between the second and the third main radiation parts.


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