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:
Jun. 14, 2011
Filed:
Nov. 20, 2009
Michael Alan Oakley, Durham, NC (US);
Dong Ho Lee, Cedar Rapids, IA (US);
Kyu Hwan an, Dunwoody, GA (US);
Chang-ho Lee, Marietta, GA (US);
Joy Laskar, Marietta, GA (US);
Michael Alan Oakley, Durham, NC (US);
Dong Ho Lee, Cedar Rapids, IA (US);
Kyu Hwan An, Dunwoody, GA (US);
Chang-Ho Lee, Marietta, GA (US);
Joy Laskar, Marietta, GA (US);
Samsung Electro-Mechanics Company, , KR;
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
An integrated power amplifier can include a carrier amplifier, where the carrier amplifier is connected to a first quarter wave transformer at the input of the carrier amplifier. In addition, the power amplifier can further include at least one peaking amplifier connected in parallel with the carrier amplifier; a first differential combining structure, where the first combining structure includes a first plurality of quarter wave transformers that are configured to combine respective first differential outputs of the carrier amplifier in phase to generate a first single-ended output signal, and a second differential combining structure, where the second combining structures includes a second plurality of quarter wave transformers that are configured to combine respective second differential outputs of the at least one peaking amplifier in phase to generate a second single-ended output signal, where the first single-ended output signal and the second single-ended output signal are combinable in-phase to provide an overall output.