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:
Nov. 17, 2009
Filed:
May. 23, 2007
Jia-hung Su, Taipei Hsien, TW;
Ching-chi Lin, Taipei Hsien, TW;
Hung-jen Chen, Taipei Hsien, TW;
Kai Shih, Taipei Hsien, TW;
Yu-yuan Wu, Taipei Hsien, TW;
Jia-Hung Su, Taipei Hsien, TW;
Ching-Chi Lin, Taipei Hsien, TW;
Hung-Jen Chen, Taipei Hsien, TW;
Kai Shih, Taipei Hsien, TW;
Yu-Yuan Wu, Taipei Hsien, TW;
Cheng Uei Precision Industry Co., Ltd., Taipei Hsien, TW;
Abstract
A dual band antenna has a ground portion, a first radiating conductor spaced from one side of the ground portion, a second radiating conductor connected between one end of the first radiating conductor and the ground portion, a third radiating conductor connected on the other end of the first radiating conductor, a fourth radiating conductor extended from the third radiating conductor, a parasitic element arranged to close to the second radiating conductor and connected to the ground portion and a feeding cable connected to the free end of the third radiating conductor. When the dual band antenna operates, the first, second and third radiating conductors obtain a first wireless location area network bandwidth covering 2.4 GHz to 2.5 GHz, and the third radiating conductor, the fourth radiating conductor and the parasitic element obtain a second wireless location area network bandwidth covering 4.9 GHz to 5.87 GHz.