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Design method of radio frequency amplifier circuit and radio frequency amplifier circuit

A technology of radio frequency amplifier and design method, applied in the field of radio frequency amplifier circuit and radio frequency amplifier circuit design, can solve the problems of huge measurement workload, non-convergence of designers, complex mathematical function fitting, etc., to improve design efficiency and simplify circuits Design method, the effect of optimizing the design process

Pending Publication Date: 2022-05-13
XIAMEN SANAN INTEGRATED CIRCUIT
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Problems solved by technology

[0008] The above steps not only have a huge measurement workload, but also the fitting of mathematical functions is extremely complicated, which leads to problems such as non-convergence in the design process for designers

Method used

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  • Design method of radio frequency amplifier circuit and radio frequency amplifier circuit
  • Design method of radio frequency amplifier circuit and radio frequency amplifier circuit
  • Design method of radio frequency amplifier circuit and radio frequency amplifier circuit

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the 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 embodiments of the present invention.

[0052] see figure 2 As shown, on the one hand, a design method of a radio frequency amplifier circuit, comprising:

[0053] S201, obtaining the bias condition of the radio frequency amplifier working in a specified class, and controlling the bias of the radio frequency amplifier to the specified class;

[0054] S202. Obtain the radio...

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Abstract

The invention discloses a radio frequency amplifier circuit design method and a radio frequency amplifier circuit, and the method comprises the steps: obtaining a bias condition when a radio frequency amplifier works in a specified class, and controlling the radio frequency amplifier to be biased to the specified class; obtaining a radio frequency small signal S parameter of the radio frequency amplifier under a specified class through testing; obtaining an input equivalent circuit based on the radio frequency small signal S parameter; the input equivalent circuit comprises a first inductor, a first resistor and a first capacitor which are connected in series; the load-pull impedance of the radio frequency amplifier under different frequencies is obtained through testing; based on the load-pull impedance, an output equivalent circuit is obtained; the output equivalent circuit comprises a second inductor, a second resistor and a second capacitor; the second resistor and the second capacitor are connected in parallel and then are connected in series with the second inductor. According to the design method, based on the application characteristics of the amplifier, the circuit design process is optimized, the convergence problem is solved, and the amplifier design efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of amplifier design, in particular to a design method of a radio frequency amplifier circuit and the radio frequency amplifier circuit. Background technique [0002] Traditional design methods for amplifier circuits (such as MMIC, monolithic microwave integrated circuits) generally include: [0003] After obtaining the PDK (Process Design Kit) model of the manufacturer, the designer first conducts IV simulation to obtain the static operating point (see figure 1 shown); and then perform load-pull (when the power amplifier is working with a large signal, the optimal load impedance of the transistor will change significantly with the increase of the input signal power; therefore, it is necessary to use the Smith chart for different When the input power level is given, the equal output power curve at different load impedances is drawn every time an input power value is given to help find the optimal load impeda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/367H03F1/56H03F3/195H03F3/213
CPCG06F30/367H03F1/56H03F3/195H03F3/213H03F2200/451
Inventor 卢益锋万亮毛朝武
Owner XIAMEN SANAN INTEGRATED CIRCUIT
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