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:
Jan. 28, 2020
Filed:
Jul. 13, 2018
Qualcomm Incorporated, San Diego, CA (US);
Gary Lee Brown, Jr., Carlsbad, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Methods and apparatuses for tuning source impedance for at least a portion of a receive path in a radio frequency front-end. An exemplary circuit generally includes a first tunable resonant circuit having an output coupled to an input of the at least the portion of the receive path and a second tunable resonant circuit having an input coupled to the output of the first tunable resonant circuit and to the input of the at least the portion of the receive path. The circuit also includes a first control input coupled to the first tunable resonant circuit and configured to adjust an impedance of the first tunable resonant circuit based on a frequency response of an output of the at least the portion of the receive path, and a second control input coupled to the second tunable resonant circuit and configured to adjust an admittance of the second tunable resonant circuit.