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. 18, 2022
Filed:
Jul. 12, 2021
Applicant:
Resonant Inc., Austin, TX (US);
Inventors:
Andrew Guyette, San Mateo, CA (US);
Neal Fenzi, Santa Barbara, CA (US);
Michael Eddy, Santa Barbara, CA (US);
Bryant Garcia, Belmont, CA (US);
Assignee:
Resonant Inc., Austin, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/56 (2006.01); H03H 9/17 (2006.01); H03H 9/54 (2006.01);
U.S. Cl.
CPC ...
H03H 9/568 (2013.01); H03H 9/17 (2013.01); H03H 9/542 (2013.01);
Abstract
There are disclosed matrix filters having an input port and sub-filters connected between the input port and respective output ports. Each of the sub-filters includes a ladder circuit with n transversely-excited film bulk acoustic resonator (XBAR) series elements and n−1 capacitor shunt elements, where n, the order of the sub-filter, is an integer greater than 2. Each sub-filter further has a first switch in parallel with a first capacitor shunt element and a second switch in parallel with a last capacitor shunt element.