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:
Dec. 11, 2012
Filed:
Feb. 06, 2012
Applicants:
Tsuyoshi Kawakami, Tokyo, JP;
Akihiko Furukawa, Tokyo, JP;
Satoshi Yamakawa, Tokyo, JP;
Tetsuya Iida, Tokyo, JP;
Masao Kondo, Tokyo, JP;
Yutaka Hoshino, Tokyo, JP;
Inventors:
Tsuyoshi Kawakami, Tokyo, JP;
Akihiko Furukawa, Tokyo, JP;
Satoshi Yamakawa, Tokyo, JP;
Tetsuya Iida, Tokyo, JP;
Masao Kondo, Tokyo, JP;
Yutaka Hoshino, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.