Method for acquiring load pull parameter of radio frequency power amplifier

A radio frequency power amplifier and parameter technology, applied in the field of radio frequency communication, can solve the problems of long debugging time and the inability to directly apply loadpull parameters, and achieve the effect of simplifying the calibration steps, shortening the test period, and avoiding environmental pollution.

Active Publication Date: 2017-08-01
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Problems solved by technology

Therefore, the loadpull parameters tested by the special test system cannot be directly applied to the finished product used in the test, and the debugging time when the loadpull parameters are applied to the product is longer

Method used

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  • Method for acquiring load pull parameter of radio frequency power amplifier
  • Method for acquiring load pull parameter of radio frequency power amplifier
  • Method for acquiring load pull parameter of radio frequency power amplifier

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Embodiment Construction

[0043] 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 only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] see figure 1 , which is a schematic flowchart of a method for obtaining loadpull parameters of a radio frequency power amplifier provided by an embodiment of the present invention, including steps S1 to S8:

[0045] S1, judging whether at least one of the N product finished products configured with the same radio frequency power amplifier belongs to a determined good product, if so, execute S2, otherwise execute S4; the determined good product means that ...

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Abstract

The invention provides a method for acquiring load pull parameters of a radio frequency power amplifier. The method adopts finished products to test, and comprises the following steps: judging whether at least one finished product in N finished products that are configured with the same radio frequency power amplifier belongs to determined high-quality products; if yes, determining a load impedance value of the radio frequency power amplifier of each determined high-quality product by using an impedance parameter system, and measuring the electrical parameters of the radio frequency power amplifier of each determined high-quality product under active conditions by using an electrical parameter system as the load pull parameters of the radio frequency power amplifier; and otherwise, selecting one of the finished products as a finished product to be tested, and changing the matching network parameters of the finished product to be tested to find a set of load pull parameters that meet the use requirements. According to the method provided by the invention, the finished products are adopted to test, a test printed circuit board customized for each DUT is not required, the test cycle can be shortened, resources can be saved, and the additional environmental pollution can be avoided.

Description

technical field [0001] The invention relates to the field of radio frequency communication, in particular to a method for obtaining load pull parameters of radio frequency power amplifiers. Background technique [0002] At present, the load pull parameters of power amplifier devices are obtained mainly through a dedicated instrument suite (hereinafter collectively referred to as "special test system"). [0003] The special test system changes the bias voltage (Bias) of the circuit and adjusts the matching impedance value corresponding to the Tuner, and observes the changes in the electrical parameters of the device under test (DUT), such as output power, efficiency, and signal quality, so as to obtain the load of the device under test. pull parameters. [0004] Before testing with a dedicated test system, it is necessary to first measure the S-parameters of components such as high-frequency wires, adapters, input and output impedance tuners (Input tuner\output tuner), and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/10H04B17/11H04B17/15H04B17/21H04B17/29
CPCH04B17/101H04B17/11H04B17/15H04B17/21H04B17/29
Inventor 陈永佑
Owner TP-LINK
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