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.

Date of Patent:
Jun. 28, 2011

Filed:

Mar. 12, 2010
Applicants:

Kyu Hwan an, Irvine, CA (US);

Yunseo Park, Norcross, GA (US);

Chang-ho Lee, Marietta, GA (US);

Inventors:

Kyu Hwan An, Irvine, CA (US);

Yunseo Park, Norcross, GA (US);

Chang-Ho Lee, Marietta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods are provided for positive and negative feedback of cascode transistors for a power amplifier. The systems and methods may include a first cascode stage comprising a first common-source device and a first common-gate device; a second cascode stage comprising a second common-source device and a second common-gate device; a first degenerative element or block provided for the first common-source device; a second degenerative element or block provided for the second common-source device; a first positive feedback block or element that connects a first gate of the first common-source device with a second drain of the second common-source device; and a second positive feedback block or element that connects a second gate of the second common-source device with a first drain of the first common-source device.


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