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. 09, 2010
Filed:
Jun. 06, 2007
Kuang-woo Nam, Suwon-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
In-sang Song, Seoul, KR;
Chul-soo Kim, Hwaseong-si, KR;
Eun-seok Park, Yongin-si, KR;
Kuang-woo Nam, Suwon-si, KR;
Yun-kwon Park, Dongducheon-si, KR;
In-sang Song, Seoul, KR;
Chul-soo Kim, Hwaseong-si, KR;
Eun-seok Park, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A film bulk acoustic resonator (FBAR) filter and a duplexer are disclosed. At least one series resonator is positioned between an input port for inputting a frequency signal and an output port for outputting a frequency signal, at least two shunt resonators respectively positioned between the input and output ports and a ground, a first trimming inductor connects the at least two shunt resonators and the ground, and a second trimming inductor is positioned between the at least two shunt resonators.