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A power amplifier circuit, its design method, and a communication terminal

A power amplifier circuit and amplifying circuit technology, applied in the field of communication, can solve the problems of compatible use and inability to realize the power amplifier module, and achieve the effects of reducing production cost, shortening research and development cycle, and simplifying structural design.

Active Publication Date: 2022-04-26
AUCTUS 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 circuit, a design method, and a communication terminal, which solves the technical problem that the existing power amplifier modules cannot realize compatible use of different formats, frequency bands, and powers

Method used

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  • A power amplifier circuit, its design method, and a communication terminal
  • A power amplifier circuit, its design method, and a communication terminal
  • A power amplifier circuit, its design method, and a communication terminal

Examples

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no. 1 example

[0030] figure 1 The structural schematic diagram of the power amplifier circuit provided for the embodiment of the present invention, the circuit includes a power amplifier module 11, a control module 12 and a final stage adjustment circuit 13, wherein the power amplifier module 11 adopts the setting structure of an existing standard power amplifier circuit, specifically including a radio frequency input Unit 111, first-stage amplifying circuit 112, signal analog pre-distortion unit 113, second-stage amplifying circuit 114, and receiving and output unit 115, the above-mentioned circuits and units are all electrically connected to each other through microstrip lines, or through strip lines, Electrically connected by welding wires, etc.

[0031] In this embodiment, the power amplifier module 11, the control module 12 and the final adjustment circuit 13 are also electrically connected through a microstrip line, and the operating parameters of the power amplifier circuit include o...

no. 2 example

[0044] In this embodiment, the structure of the power amplifier circuit provided by the present invention is designed in combination with actual scenarios.

[0045] The design of the power amplifier circuit provided in this embodiment is specifically by splitting the design according to the function, the control module 12, the signal analog predistortion unit (APD) 113 and the pre-driver are designed separately from the final stage amplifier, the control module 12, the signal analog pre-distortion unit (APD) 113 are designed separately, the control module 12, the signal analog pre- The distortion unit (APD) 113, the first-stage amplifier circuit 112 and the second-stage amplifier circuit 114 are set as standard modules. It is only necessary to change the BOM for different frequency bands, different systems, and different powers. The change of BOM here refers to the When controlling the module 12, the signal analog predistortion unit (APD) 113, the first-stage amplifying circuit...

no. 3 example

[0052] See Figure 4 , Figure 4 The flow chart of the power amplifier circuit design method provided by the embodiment of the present invention, specifically, the method includes the following steps:

[0053] S401. Obtain current working parameters of the power amplifier circuit.

[0054] In this step, the working parameters refer to the communication working frequency band, working system or power level of the environment where the power amplifier circuit to be adjusted is applied.

[0055] S402. Set the final adjustment circuit according to the working parameters, and adjust the output parameters in the final adjustment circuit.

[0056] For example, when the communication frequency band, working system and output power are 50-300MHz, TDD system or FDD system, and 60W, the corresponding adjustment strategy is determined according to these parameters, and the output parameters of the final adjustment circuit are adjusted in real time according to the adjustment strategy. ...

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Abstract

The invention provides a power amplifier circuit, a design method, and a communication terminal. In the circuit, a final stage adjustment circuit is embedded in the power amplifier module, and the output parameters of the final stage adjustment circuit are detected by the control module according to the power amplifier circuit detected by the detection module. The current working frequency band, working system and output power are adjusted in real time. Through the adjustment of the output parameters, the power amplifier circuit is matched with the working frequency band, working system and output power, thus realizing different working frequency bands, working systems and output power. The compatible use of power simplifies the structural design of the existing power amplifier module, meets the requirements of more application scenarios, and also shortens the research and development cycle of the power amplifier circuit and reduces the production cost.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a power amplifier circuit, a design method, and a communication terminal. Background technique [0002] With the rapid development of electronic communication technology, especially the continuous popularization and use of radio frequency communication products, in order to avoid communication interference between different devices, each business will set up a different working frequency band or working system to ensure the safety of the equipment. For accurate communication, there may even be different output powers, but for different occasions, the signal quality requirements are also different, and adjustments need to be made through the power amplifier module. [0003] In this regard, the current traditional practice of power amplifier modules is that each frequency band, standard, and power level requires a separate power amplifier module. However, in general, the deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/04
CPCH04B1/04H04B2001/0408
Inventor 蓝群刘德复
Owner AUCTUS TECH CO LTD