Power amplifier output matching circuit, RF front-end module and wireless device

An output matching, RF front-end technology, used in the field of RF communications

Active Publication Date: 2021-07-06
RADROCK (SHENZHEN) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a power amplifier output matching circuit, a radio frequency front-end module and a wireless device to solve the problem that the performance of the existing power amplifier is greatly affected by the load line impedance and insertion loss

Method used

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  • Power amplifier output matching circuit, RF front-end module and wireless device
  • Power amplifier output matching circuit, RF front-end module and wireless device
  • Power amplifier output matching circuit, RF front-end module and wireless device

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be understood that the invention can be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity, and like reference numer...

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PUM

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Abstract

The invention discloses a power amplifier output matching circuit, a radio frequency front-end module and a wireless device. The power amplifier output matching circuit is used to connect the first power amplifier output and the second power amplifier output of the output stage of the push-pull power amplifier, including a load balun, a first DC blocking circuit, a second DC blocking circuit, a first feed circuit and a second DC blocking circuit. Two-feed circuit; the main coil of the load balun is provided with a first balun input and a second balun input; the first balun input is connected to the output of the first power amplifier through the first DC blocking circuit, and the first balun input The second balun input is connected to the output of the second power amplifier through the second DC blocking circuit, and the second balun input is connected to the output of the second power amplifier through the second feed circuit. The circuit can effectively eliminate the influence of parasitic inductance on load line impedance and load line insertion loss, and ensure the output power and power conversion efficiency of the push-pull power amplifier.

Description

technical field [0001] The invention relates to the technical field of radio frequency communication, in particular to a power amplifier output matching circuit, a radio frequency front-end module and a wireless device. Background technique [0002] The RF front-end is between the antenna and the RF transceiver, and is the core component of electronic terminal communication. The RF front-end includes filters, LNA (short for Low Noise Amplifier, low noise amplifier), PA (short for Power Amplifier, power amplifier), switches, and antenna tuning. The power amplifier is the core active device of the radio frequency front end, through which the electronic terminal can obtain higher radio frequency output power. The key performance goal of the fifth-generation mobile communication technology (5G) is to greatly increase the transmission rate compared with 4G. The 5G new technology needs to adopt a radio frequency front-end with higher frequency, larger bandwidth, and higher-order ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/26H03F1/56
CPCH03F3/26H03F1/565H03F2200/451H03F3/19H03F3/245H03F2200/541
Inventor 胡自洁曹原倪楠倪建兴
Owner RADROCK (SHENZHEN) TECH CO LTD
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