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:
Aug. 25, 2026
Filed:
Feb. 15, 2022
Applicant:
Ntt, Inc., Tokyo, JP;
Inventors:
Teruo Jo, Tokyo, JP;
Daisuke Kitayama, Tokyo, JP;
Hiroyuki Takahashi, Tokyo, JP;
Takeshi Sakamoto, Tokyo, JP;
Assignee:
NTT, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/18 (2006.01); H03D 7/14 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/18 (2013.01); H03D 7/1441 (2013.01); H04B 1/0082 (2013.01);
Abstract
The mixer circuit includes a mixer, an LO matching circuit inserted between an LO signal terminal and a first terminal of the mixer, an IF matching circuit inserted between the IF signal terminal and a second terminal of the mixer, and an RF matching circuit inserted between an RF signal terminal and a third terminal of the mixer. In the RF matching circuit, a reflection characteristic is set such that a minimum value of reflection loss appears on a high-frequency side of the frequency of the LO signal.