Matching circuit, radio frequency front-end power amplification circuit, and mobile communication device
US11936408B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jul 14, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0458
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A matching circuit, a radio frequency front-end power amplification circuit, and a mobile communication device are provided. The matching circuit is configurable for the radio frequency front-end power amplification circuit, including a first impedance matcher, a first bandpass filter, a first wave trap, and a first matching unit. An impedance of the first impedance matcher is a first preset impedance at a first frequency, the first bandpass filter is bridged between a front end of the first impedance matcher and ground, the first bandpass filter enables a signal of the first frequency to pass through, and suppresses at least one of a signal of a second frequency and a signal of third harmonic generation of the first frequency. The second frequency is lower than the first frequency. The first wave trap is bridged between a rear end of the first impedance matcher and the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.