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:
May. 25, 2021
Filed:
Dec. 05, 2018
Applicant:
Infineon Technologies Ag, Neubiberg, DE;
Inventors:
Hans-Joerg Timme, Ottobrunn, DE;
Ruediger Bauder, Feldkirchen-Westerham, DE;
Assignee:
INFINEON TECHNOLOGIES AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/58 (2006.01); H03H 9/54 (2006.01); H03H 7/01 (2006.01); H03H 9/64 (2006.01); H03H 9/52 (2006.01); H03H 9/05 (2006.01); H03H 9/60 (2006.01); H04B 1/00 (2006.01); H03H 3/02 (2006.01); H03H 11/12 (2006.01); H04B 1/10 (2006.01); H04B 1/40 (2015.01); H03H 9/02 (2006.01); H03H 9/17 (2006.01); H03H 9/48 (2006.01); H03H 9/00 (2006.01); H03H 9/66 (2006.01); H04B 1/04 (2006.01); H04B 1/50 (2006.01); H03H 7/12 (2006.01); H03H 7/46 (2006.01); H04B 1/525 (2015.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03H 9/70 (2006.01); H04B 1/18 (2006.01); H03J 3/20 (2006.01); H03H 9/205 (2006.01); H01L 41/187 (2006.01); H03J 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/584 (2013.01); H03F 3/19 (2013.01); H03F 3/21 (2013.01); H03H 3/02 (2013.01); H03H 7/0115 (2013.01); H03H 7/0153 (2013.01); H03H 7/0161 (2013.01); H03H 7/12 (2013.01); H03H 7/1741 (2013.01); H03H 7/463 (2013.01); H03H 9/0004 (2013.01); H03H 9/02007 (2013.01); H03H 9/02015 (2013.01); H03H 9/02031 (2013.01); H03H 9/0547 (2013.01); H03H 9/175 (2013.01); H03H 9/205 (2013.01); H03H 9/48 (2013.01); H03H 9/52 (2013.01); H03H 9/54 (2013.01); H03H 9/542 (2013.01); H03H 9/547 (2013.01); H03H 9/585 (2013.01); H03H 9/60 (2013.01); H03H 9/6479 (2013.01); H03H 9/66 (2013.01); H03H 9/70 (2013.01); H03H 11/1291 (2013.01); H03J 3/20 (2013.01); H04B 1/006 (2013.01); H04B 1/0057 (2013.01); H04B 1/0475 (2013.01); H04B 1/10 (2013.01); H04B 1/1036 (2013.01); H04B 1/18 (2013.01); H04B 1/40 (2013.01); H04B 1/50 (2013.01); H04B 1/525 (2013.01); H01L 41/187 (2013.01); H03F 2200/222 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H03F 2203/21157 (2013.01); H03H 9/587 (2013.01); H03H 9/588 (2013.01); H03H 9/589 (2013.01); H03H 9/605 (2013.01); H03H 2007/013 (2013.01); H03H 2009/02204 (2013.01); H03H 2210/025 (2013.01); H03H 2210/026 (2013.01); H03J 1/0008 (2013.01);
Abstract
A resonator element for use in a filter is provided. The resonator element includes a first resonator acoustically coupled to a second or third resonator or both. The first resonator has terminals for incorporation in a filter structure. A tuning circuit is coupled to the second or third resonator or both to enable tuning of the resonator element. The tuning circuit includes a variable capacitor and an inductor.