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:
Oct. 29, 2019
Filed:
Sep. 06, 2017
Unictron Technologies Corporation, Hsin-Chu, TW;
Chih-Shen Chou, Hsin-Chu, TW;
Tsung-Shou Yeh, Hsin-Chu, TW;
Jer-Yeu Kuo, Hsin-Chu, TW;
Hsiang-Cheng Yang, Hsin-Chu, TW;
Unictron Technologies Corporation, Hsin-Chu, TW;
Abstract
A multi-frequency antenna comprises a substrate disposed on a clearance area of a circuit board, and a first resonance unit and a second resonance unit located on the surface of the substrate or within the substrate. The first resonance unit is connected to a signal feeding terminal of the circuit board and connected to the second resonance unit via a first filtering element. The first resonance unit forms the first resonance frequency of the multi-frequency antenna, and the first resonance unit, the first filtering element, and the second resonance unit all together form the second resonant frequency. The first filtering element shows a high impedance towards the signal with the first resonant frequency and a low impedance towards the signal with the second resonant frequency. Thus, an antenna with multiple resonant frequencies can be obtained. The material and manufacturing costs of the multi-frequency antenna can thereby be reduced.