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. 25, 2014

Filed:

Sep. 07, 2010
Applicants:

Kenta Kuroda, Tokyo, JP;

Kazuhiko Honjo, Tsukuba, JP;

Inventors:

Kenta Kuroda, Tokyo, JP;

Kazuhiko Honjo, Tsukuba, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A microwave harmonic processing circuit includes (n−1) parallel open ended stubs differing in length, connected in parallel to an output terminal of a serial transmission line at a single point, and having predetermined electrical lengths corresponding to second to higher n-th (n is any integer) harmonics, respectively, the serial transmission line having an input terminal connected to an output terminal of a transistor and having a predetermined electrical length; a first strip conductor connecting the serial transmission line to two parallel open ended stubs of the (n−1) parallel open ended stubs at a single connecting point; a second strip conductor connecting the (n−3) parallel open ended stubs to each other at a single connecting point; a ground layer disposed between first strip conductor and second strip conductor; and a via electrically connecting a connecting portion of first strip conductor and a connecting portion of second strip conductor.


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