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:
Mar. 15, 2016

Filed:

Feb. 26, 2014
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka City, JP;

Inventors:

Taiji Akizuki, Miyagi, JP;

Junji Sato, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 7/14 (2006.01);
U.S. Cl.
CPC ...
H03D 7/1441 (2013.01); H03D 7/1458 (2013.01); H03D 7/1491 (2013.01); H03D 2200/0023 (2013.01); H03D 2200/0066 (2013.01); H03D 2200/0088 (2013.01);
Abstract

A balun converts a single-ended radio-frequency signal into differential signals. A differential matching circuit outputs a maximum-level positive-phase output signal at a lower or higher frequency than the center frequency and outputs a maximum-level reverse-phase output signal at a higher or lower frequency than the center frequency. An amplification circuit amplifies a positive-phase output signal and a reverse-phase output signal of the differential matching circuit. A mixing circuit converts the positive-phase output signal and the reverse-phase output signal that are output from the amplification circuit into intermediate-frequency signals using locally generated signals.


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