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. 25, 2013
Filed:
Nov. 05, 2010
Tsun-che Huang, Tainan, TW;
Feng-chia Hsu, Kaohsiung County, TW;
Pin Chang, Hsinchu, TW;
Chin-hung Wang, Hsinchu, TW;
Tsun-Che Huang, Tainan, TW;
Feng-Chia Hsu, Kaohsiung County, TW;
Pin Chang, Hsinchu, TW;
Chin-Hung Wang, Hsinchu, TW;
Industrial Technology Research Institutute, Hsinchu, TW;
Abstract
A microelectromechanical filter is provided. The microelectromechanical filter includes an input electrode, an output electrode, one or several piezoelectric resonators, one or several high quality factor resonators, and one or several coupling beams. The input electrode and the output electrode are disposed on the piezoelectric resonators. The high quality factor resonator is silicon or of piezoelectric materials, and there is no metal electrode on top of the resonator. The coupling beam is connected between the piezoelectric resonator and the high quality factor resonator. The coupling beam transmits an acoustic wave among the resonators, and controls a bandwidth of filter. The microelectromechanical filter with low impedance and high quality factor fits the demand for next-generation communication systems.