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. 03, 2026

Filed:

Jun. 26, 2020
Applicant:

Ntt, Inc., Tokyo, JP;

Inventors:

Teruo Jo, Tokyo, JP;

Munehiko Nagatani, Tokyo, JP;

Hideyuki Nosaka, Tokyo, JP;

Assignee:

NTT, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/60 (2006.01); H03F 1/42 (2006.01); H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
H03F 1/42 (2013.01); H03F 3/605 (2013.01); H03F 1/0288 (2013.01); H03F 2200/36 (2013.01);
Abstract

An embodiment is a distributed amplifier including amplifier blocks, each of the amplifier blocks including a first transmission line to receive input of a signal to an input end, a second transmission line to output a signal from an output end, a first termination resistor having a first end connected to a terminal end of the first transmission line, a second termination resistor having a first end connected to an input end of the second transmission line, and unit cells arranged along the first and second transmission lines, each of the unit cells having an input terminal connected to the first transmission line and an output terminal connected to the second transmission line, the amplifier blocks are connected in cascade such that a terminal end of the second transmission line of one of the amplifier blocks is connected to the first transmission line of a subsequent amplifier block.


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