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:
Dec. 24, 2024
Filed:
Sep. 30, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Yuji Komatsuzaki, Tokyo, JP;
Satoru Honda, Tokyo, JP;
Shuichi Sakata, Tokyo, JP;
Shintaro Shinjo, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
This Doherty amplifier includes: a carrier amplifier for amplifying a first signal and outputting the amplified first signal; a peaking amplifier for amplifying a second signal and outputting the amplified second signal, the peaking amplifier having a non-linear output capacitance; a first output circuit for transmitting the first signal output from the carrier amplifier; a second output circuit for functioning as a virtual short stub when the peaking amplifier does not perform an amplification operation, and transmitting the second signal output from the peaking amplifier; and a combining circuit for combining the first signal transmitted by the first output circuit and the second signal transmitted by the second output circuit and outputting a combined signal of the first signal and the second signal, wherein, when the peaking amplifier performs the amplification operation, the second output circuit transforms an impedance seen by looking into the combining circuit from the peaking amplifier into an impedance in an inductive region.