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:
Feb. 02, 2021
Filed:
Jan. 24, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A Doherty amplifier includes a carrier amplifier, a peaking amplifier, and a phase compensation circuit. The carrier amplifierincludes a main amplifying element and a parasitic element, and the peaking amplifier includes an auxiliary amplifying element and a parasitic element. The phase compensation circuit has a negative electrical length that allows a total electrical length of a signal transmission path starting from an output source of the main amplifying element to a power combiner to become 180°×N−90° where N is a positive integer. In addition, a signal transmission path starting from an output source of the auxiliary amplifying element to the power combiner has an electrical length of 180°×M−180° where M is a positive integer.