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:
Jul. 14, 2026

Filed:

Aug. 23, 2021
Applicants:

Tokyo Institute of Technology, Tokyo, JP;

Kyocera Corporation, Kyoto, JP;

Inventors:

Noboru Ishihara, Tokyo, JP;

Shinsuke Tsuru, Yokohama, JP;

Tomonao Yuzawa, Kawasaki, JP;

Shinji Isoyama, Yokohama, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H03H 7/18 (2006.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H03H 7/18 (2013.01);
Abstract

A transmission circuit includes: a plurality of impedance circuits having impedances different from each other, a plurality of first switch elements, any one of which is being connected to a respective one of the plurality of impedance circuits, and a first control circuit configured to control opening and closing of the plurality of first switch elements. The first control circuit is configured to be controllable to selectively change the opening and closing of the plurality of first switch elements and to rotate a reflection coefficient of an output terminal on an antenna side of the transmission circuit in a complex plane.


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