A method of calling s2p file to obtain loss compensation data in noise figure analyzer

Abstract

The present invention provides a method for calling S2P files in a noise figure analyzer to obtain loss compensation data, which includes the following steps: step 1, load the S2P file from the network analyzer, and parse the S2P format file data; step 2, extract Valid parameters in the S2P data, calculate the loss compensation value suitable for the noise figure analyzer; step 3, create a new frequency-loss value list to correct the system loss in the noise figure measurement; step 4, save the loss in LOS format Compensation file, generate a LOS format file with the same name as the S2P file, or save it as a LOS file with the user's own name. The invention is easy to operate, the whole algorithm can be embedded in the host software of the noise coefficient analyzer, and can be automatically completed by one-key operation in the menu, and can also be realized by program control outside the instrument; it provides a method for establishing a loss compensation table in noise coefficient measurement. A new fast and efficient input method.

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

Images