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.
Patent No.:
Date of Patent:
Jan. 19, 2016
Filed:
Oct. 20, 2011
Chun-wei Tseng, Taoyuan County, TW;
Chien-chih Chen, Taoyuan County, TW;
Yen-liang Kuo, Taoyuan County, TW;
Wan-ming Chen, Taoyuan County, TW;
Chun-Wei Tseng, Taoyuan County, TW;
Chien-Chih Chen, Taoyuan County, TW;
Yen-Liang Kuo, Taoyuan County, TW;
Wan-Ming Chen, Taoyuan County, TW;
HTC CORPORATION, , TW;
Abstract
A handheld device and a planar antenna thereof are provided. The planar antenna comprises a radiator with an open terminal, a short terminal, a first feeding terminal and a second feeding terminal. The short terminal is coupled to a ground terminal. The first feeding terminal is formed between the open terminal and the short terminal, and coupled to a radio frequency (RF) signal terminal. The second feeding terminal is formed between the open terminal and the first feeding terminal, and coupled to the first feeding terminal by a transmission line and a switch element. The radiator resonates at the first central frequency when the switch element is turned off, and resonates at the second central frequency when the switch element is turned on.