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The measurement method of the input power of the load pull system and its tested parts

A measurement method and input terminal technology, which is applied in the direction of electric power measurement by applying the square law characteristics of circuit components, and can solve the problem that power cannot be obtained in real time

Active Publication Date: 2021-02-23
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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AI Technical Summary

Problems solved by technology

The power injected into the load from the output end of the DUT can generally be obtained in real time by de-embedding and translating the readings of the power meter to the output end of the DUT. However, the power provided by the system to the input end of the DUT is in the traditional load pulling system is not available in real time

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  • The measurement method of the input power of the load pull system and its tested parts
  • The measurement method of the input power of the load pull system and its tested parts
  • The measurement method of the input power of the load pull system and its tested parts

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, the embodiments are provided to explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to particular intended uses.

[0030] refer to figure 1 , the load pull system of this embodiment includes a signal source 1 , a power amplifier 2 , a source impedance adjuster 3 , a feed-through 4 , a load impedance adjuster 5 , and a power meter 6 connected to the load impedance adjuster 5 connected in sequence.

[0031] Specifically, the signal source 1 is used to provide a source signal for the entire system, and the power amplifier 2 is used to ampli...

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Abstract

The invention provides a method for measuring the input end face power of a load-pull system and a device under test thereof, the method comprising the following steps: obtaining the S parameter of the source impedance adjuster through a vector network analyzer; turning on the signal source and the power amplifier, and The source impedance adjuster and the load impedance adjuster are placed at a predetermined position; the output power of the signal source is scanned within a predetermined range, and the power values ​​corresponding to the output power are respectively read from the power meter; The value is shifted to the input end face of the source impedance adjuster to obtain the power of the input end face of the source impedance adjuster; the power of the input end face of the DUT is calculated according to the S parameter and the power of the input end face of the source impedance adjuster . The load pulling system and the method for measuring the input end surface power of the tested piece provided by the invention can obtain the input end surface power of the tested piece in real time.

Description

technical field [0001] The invention belongs to the field of radio frequency microwave measurement, and in particular relates to a method for measuring the input end surface power of a load pulling system and a tested part thereof. Background technique [0002] The purpose of load pull measurement is to provide different impedances and different available powers to the DUT at the input and output ends of the device under test (DUT), and then measure the characteristics of the DUT in these different environments, such as output power, efficiency and other parameters. The load-pull system is an essential system for load-pull measurement of high-power RF microwave power devices. The load-pull system generally consists of a signal source, a power amplifier, an input impedance adjuster, an output impedance adjuster, an attenuator, a power meter and other accessories. composition. [0003] The input and output impedance of most RF microwave power devices are not 50 ohms, and ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/10
CPCG01R21/10
Inventor 余庭
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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