Method for acquiring loss compensation data by calling S2P document in noise coefficient analyzer

Abstract

The invention presents a method for acquiring loss compensation data by calling S2P document in a noise coefficient analyzer, which includes steps of, step one, loading a S2P document originated from a network analyzer, and analyzing the S2P format document data; step two, extracting effective parameter in S2P data, and calculating the loss compensation value in the noise coefficient analyzer; step three, building up a new frequency-loss value list for modifying the system loss in the noise coefficient measurement; step four, storing the LOS format loss compensation document, and generating the LOS format document with the same name as the S2P document; or naming the file by the user in LOS format. The method is simple to operate; the whole algorithm can be embedded in host machine software of the noise coefficient analyzer, and can be automatically completed through one-button operation of the menu or a programming method at the outer part of an instrument; the method provides a new rapid and effective input way for the building of the loss compensation table in the noise coefficient measurement.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a method for calling an S2P file in a noise figure analyzer to obtain loss compensation data. Background technique [0002] The rapid development and application of modern electronic technology has made people's demand for the receiver's ability to process and detect weak signals increasingly stronger. Among the parameters that characterize the ability of the system to process low-level signals, the noise figure is the only parameter that is suitable for characterizing the entire receiver system and the components such as amplifiers, mixers, and transistors. It is used in radar, communication, and low-noise receiving systems. , Microwave manufacturing and other fields are widely used. The rapid and accurate measurement of noise figure can not only shorten the verification and development cycle of new designs, but also greatly improve the efficiency of production testing and meas...

AI Technical Summary

Problems solved by technology

[0009] Only input a single fixed loss value and apply it to the entire measurement frequency band. Due to the characteristics of the loss parts, in many cases, the loss characteristics of the loss parts in the scanning frequency band cannot be fully characterized;

[0010] By editing the loss compensation table, it is necessary to manually input the frequency-loss characterization values ​​of the loss parts one by one. Although the loss characteristics of different measurement frequencies can be represented, the manual input operation is cumbersome and time-consuming, and human input errors are prone to occur;

[0011] Although the LOS loss file can be directly loaded and called, the file format is unique to the noise figure analyzer and cannot be used with other instruments. Every time a new loss part is replaced, it must be edited and input again and then saved for the next call. It is inconvenient to use and operate, which increases the cost of user measurement and the complexity of user use

[0012] When the connectors to be compensated are non-standard parts, the network analyzer is usually used to perform dual-port S-parameter measurement first, and the measurement results are saved in the S2P file format. The S2P file and its S11, S21, S12 and S22 network parameters, Cannot be directly used by existing noise meters

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