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:
Apr. 07, 2015
Filed:
Sep. 06, 2011
Yu Zhao, San Diego, CA (US);
Babak Nejati, San Diego, CA (US);
Nathan M Pletcher, Encinitas, CA (US);
Aristotele Hadjichristos, San Diego, CA (US);
Yu Zhao, San Diego, CA (US);
Babak Nejati, San Diego, CA (US);
Nathan M Pletcher, Encinitas, CA (US);
Aristotele Hadjichristos, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.