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:
Mar. 26, 2019
Filed:
Jun. 30, 2017
Applicant:
Resonant Inc., Santa Barbara, CA (US);
Inventors:
James R. Costa, Lompoc, CA (US);
Neal Fenzi, Santa Barbara, CA (US);
Robert Hammond, Santa Barbara, CA (US);
Assignee:
Resonant Inc., Santa Barbara, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/10 (2006.01); H04B 1/44 (2006.01); H03H 9/64 (2006.01); H03H 7/38 (2006.01); H04B 1/38 (2015.01); H03H 11/30 (2006.01); H04B 1/04 (2006.01); H01Q 1/50 (2006.01); H04L 5/14 (2006.01);
U.S. Cl.
CPC ...
H03H 9/64 (2013.01); H03H 7/38 (2013.01); H03H 11/30 (2013.01); H04B 1/0458 (2013.01); H04B 1/38 (2013.01); H01Q 1/50 (2013.01); H04L 5/1461 (2013.01);
Abstract
A transmit filter for a communications device includes a surface acoustic wave (SAW) band-pass filter configured to pass a transmit frequency band and a tunable transmitter impedance matching network in series. The tunable transmitter impedance matching network matches an input impedance of the SAW band-pass filter to the output impedance of a power amplifier over a portion of the transmit frequency band in response to a tuning input.