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:
Apr. 28, 2020
Filed:
Jun. 08, 2016
Applicant:
The University of Electro-communications, Chofu-shi, Tokyo, JP;
Inventors:
Assignee:
THE UNIVERSITY OF ELECTRO-COMMUNICATIONS, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/68 (2006.01); H04B 1/04 (2006.01); H04B 1/00 (2006.01); H03F 3/24 (2006.01); H03F 3/21 (2006.01); H03F 1/02 (2006.01); H03F 3/217 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0483 (2013.01); H03F 1/0277 (2013.01); H03F 3/211 (2013.01); H03F 3/217 (2013.01); H03F 3/24 (2013.01); H03F 3/245 (2013.01); H03F 3/68 (2013.01); H04B 1/00 (2013.01); H04B 1/04 (2013.01); H03F 2200/111 (2013.01); H03F 2200/429 (2013.01); H04B 2001/045 (2013.01); H04B 2001/0408 (2013.01);
Abstract
A concurrent-type multiband amplifier (or a dual-band amplifier) which amplifies multiband signals concurrently using a plurality of (N) amplifier circuits which each independently amplify signals in a plurality of (N) frequency bands. An n-th (n=any of 1 to N) amplifier circuit is provided with a circuit for blocking signals in frequency bands other than the n-th frequency band so as to amplify and output only the n-th frequency band signal. The n-th amplifier circuit is designed so as to consist of its input/output impedance matching circuit for the n-th an amplifier element at the n-th frequency band.