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:
May. 19, 2026

Filed:

Jul. 06, 2022
Applicant:

Huawei Technologies Co., Ltd., Guangdong, CN;

Inventors:

Mingming Zhang, Shanghai, CN;

Qilin Qiu, Shenzhen, CN;

Hsianghui Chang, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/40 (2015.01); H03F 3/195 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H04B 1/40 (2013.01); H03F 3/195 (2013.01); H03H 7/38 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01);
Abstract

A matching circuit, a radio frequency front-end circuit, a radio transceiver apparatus, and an electronic device are provided. The radio frequency front-end circuit includes a low noise amplifier and a power amplifier each coupled to an antenna through a matching circuit. The matching circuit includes a transformer, a capacitor, a first switch, and a first inductor element. The transformer is coupled to the power amplifier and the antenna. The capacitor is coupled to the transformer and to the low noise amplifier. The first switch is coupled to the capacitor and to the transformer and is grounded. The first inductor element is coupled to the capacitor and to the first switch and is grounded. A resonant network formed by the first inductor element and the first switch enables the radio frequency front-end circuit to in a wide frequency band.


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