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:
Sep. 14, 2021
Filed:
May. 08, 2020
Applicant:
Ethertronics, Inc., San Diego, CA (US);
Inventor:
Laurent Desclos, San Diego, CA (US);
Assignee:
Ethertronics, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03H 11/12 (2006.01); H04B 1/16 (2006.01); H03F 1/56 (2006.01); H03F 3/24 (2006.01); H03F 3/195 (2006.01); H03F 3/45 (2006.01); H04B 1/10 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03H 19/00 (2006.01);
U.S. Cl.
CPC ...
H03H 11/1217 (2013.01); H03F 1/56 (2013.01); H03F 3/19 (2013.01); H03F 3/195 (2013.01); H03F 3/21 (2013.01); H03F 3/245 (2013.01); H03F 3/45179 (2013.01); H03F 3/45475 (2013.01); H03H 11/1291 (2013.01); H03H 19/004 (2013.01); H04B 1/04 (2013.01); H04B 1/1036 (2013.01); H04B 1/1638 (2013.01); H03F 2200/213 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01); H03F 2200/546 (2013.01); H03F 2203/45544 (2013.01); H03F 2203/45594 (2013.01); H03H 2210/012 (2013.01); H03H 2210/015 (2013.01); H03H 2210/025 (2013.01); H03H 2210/028 (2013.01); H04B 2001/1054 (2013.01);
Abstract
A tunable filter is described where the frequency response as well as bandwidth and transmission loss characteristics can be dynamically altered, providing improved performance for transceiver front-end tuning applications. The rate of roll-off of the frequency response can be adjusted to improve performance when used in duplexer applications. The tunable filter topology is applicable for both transmit and receive circuits. A method is described where the filter characteristics are adjusted to account for and compensate for the frequency response of the antenna used in a communication system.