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:
Jun. 01, 2010
Filed:
Jul. 26, 2007
Jia-hung Su, Tu-Cheng, TW;
Ching-chi Lin, Tu-Cheng, TW;
Hung-jen Chen, Tu-Cheng, TW;
Kai Shih, Tu-Cheng, TW;
Yu-yuan Wu, Tu-Cheng, TW;
Jia-Hung Su, Tu-Cheng, TW;
Ching-Chi Lin, Tu-Cheng, TW;
Hung-Jen Chen, Tu-Cheng, TW;
Kai Shih, Tu-Cheng, TW;
Yu-Yuan Wu, Tu-Cheng, TW;
Cheng Uei Precision Industry Co., Ltd., Taipei Hsien, TW;
Abstract
An antenna structure includes a connection portion. A feed portion connecting to the connection portion defines a feed point thereon. An inductance portion extends from the connection portion, and a free end of the inductance portion connects to a ground end. A capacitance portion that is in a long narrow strip shape extends from the connection portion and is parallel with and adjacent to the ground end. And radiating portions connect to the connection portion respectively. The antenna structure employs the inductance portion, the capacitance portion and the ground end to simulate a LC parallel connection to substitute for an inductor and a capacitor. Therefore, the antenna structure achieves an aim of adjusting a resonance frequency and an impedance matching without the inductor and the capacitor, simplifying the design of the antenna structure, decreasing the manufacture cost and attaining a good performance.