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:
Aug. 24, 2010

Filed:

May. 23, 2008
Applicants:

Shyh-jong Chung, Hsinchu, TW;

Ching-wei Ling, Sinhua Township, Tainan County, TW;

Yu-chiang Cheng, Taipei, TW;

Inventors:

Shyh-Jong Chung, Hsinchu, TW;

Ching-Wei Ling, Sinhua Township, Tainan County, TW;

Yu-Chiang Cheng, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/48 (2006.01); H01Q 9/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a planar inverted-F antenna with an extended grounding plane. The planar inverted-F antenna has a grounding metal plate having a selected side edge on which the extended grounding plane is formed and has a predetermined height. At least one antenna signal radiating plate is connected to the grounding metal plate by a short-circuit piece and is substantially parallel to and spaced from the grounding metal plate by a distance. A feeding point extends from the antenna signal radiating plate in a direction toward the grounding metal plate and corresponds to the extended grounding plane with a predetermined gap therebetween. With the arrangement of the extended grounding plane, the impedance matching of the antenna is improved and the impedance bandwidth of the antenna is increased.


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