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Vector network measuring device and measuring method thereof

A vector network and measurement device technology, applied in the field of vector network, can solve the problems of huge cost, inability to measure the vector characteristics of vector network, complex technology of vector network analyzer, etc., and achieve the effect of simple and efficient operation process

Active Publication Date: 2018-10-09
SHENZHEN CITY SIGLENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To measure the amplitude-frequency and phase-frequency characteristics of a network, it is generally necessary to use a vector network analyzer for measurement. However, the vector network analyzer is complex in technology and high in cost, and the price of the simplest configuration is more than 10,000 yuan
For scientific research institutes or enterprises that study microwave radio frequency, it will cost a lot to configure several such vector network analyzers.
In addition, although ordinary spectrum analysis instruments have the ability to measure amplitude frequency and phase frequency, they are powerless to measure the vector characteristics of vector networks, thus causing the embarrassing situation that spectrum analysis instruments cannot be fully used

Method used

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  • Vector network measuring device and measuring method thereof
  • Vector network measuring device and measuring method thereof
  • Vector network measuring device and measuring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1. A measuring device for a vector network, such as figure 1 shown.

[0029] In this embodiment, the vector network measurement device includes a scanning signal generating module 101, a bidirectional coupler 102, a first switch 104, a second switch 105, a first network port 103, a second network port 106, a spectrum receiving channel 107 and an IQ analysis module 108 .

[0030] The bidirectional coupler 102 includes a scanning signal input port 1021 , a scanning signal output port 1022 , a forward coupling signal output port 1023 and a reflection coupling signal output port 1024 . The first switch 104 includes two signal input ports 1041 , 1042 and one signal output port 1043 , and the second switch 105 includes two signal input ports 1051 , 1052 and one signal output port 1053 .

[0031] The scan signal input port 1021 is signally connected to the scan signal generating module 101 for receiving the scan signal generated by the scan signal generating modul...

Embodiment 2

[0041] Embodiment 2. A spectrum analyzer, such as figure 2 shown.

[0042] The spectrum analyzer provided by this embodiment includes a scanning signal generation module 101, a bidirectional coupler 102, a spectrum receiving channel 107, an IQ analysis module 108, a first switch 104, a second switch 105, a first network port 103 and a second network Port 106, as well as digitally controlled attenuator and display (not marked in the figure), wherein, scanning signal generating module 101, spectrum receiving channel 107, digitally controlled attenuator and display are commonly used functional modules of existing spectrum analyzers, and the rest of the functional modules are new Add function module, its detailed description is as follows.

[0043] The spectrum analyzer has ports for externally connecting the measured vector network, which are respectively the first network port 103 and the second network port 106, and the two ports are arranged on the interface panel of the spe...

Embodiment 3

[0048] Embodiment three, single-port vector network measurement method, such as image 3 shown.

[0049] The single-port vector network measurement method provided in this embodiment utilizes the vector network measurement device provided in Embodiment 1, see Figure 4 , the signal of the single-port vector network N1 is connected to the first network port 103 of the vector network measuring device. In this embodiment, the single-port vector network N1 has a communication port, which realizes the signal input and signal output functions, therefore, the communication port is only connected to the first network port 103, and the vector network measuring device The second network port 106 is floating.

[0050] According to formula (1), it can be seen that the calculation of the reflection coefficient of a single-port network can be done by Г N need to first know the S parameter matrix of the bidirectional coupler 102, that is, to know the S 11 , S 12 , S 21 , S 22 , due to...

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Abstract

The invention discloses a vector network measuring device and a vector network measuring method thereof. Since a scanning signal generating module and a bidirectional coupler in the vector network measuring device are conventional functional devices, functions of the scanning signal generating module, a spectrum receiving channel and an IQ analysis module can be realized by means of a spectrum analyzer, so that the vector network measuring device has the advantages of simple structure and low development cost. The vector network measuring method is implemented by means of the vector network measuring device, the vector network measuring method is used for completing the signal transmission, reception and analysis processes, can acquire vector features of a measured vector network, and canachieve the measurement effect equivalent to that of an existing vector network analyzer.

Description

technical field [0001] The invention relates to a vector network, in particular to a measuring device and a measuring method for a vector network. Background technique [0002] With the development of modern technology, the communication system is becoming more and more complex. In order to improve the overall performance of the communication system, only measuring the amplitude-frequency transmission characteristics of the equipment can no longer meet the system design requirements. The accurate measurement of more vector parameter characteristics can improve the system performance. more and more important. [0003] To measure the amplitude-frequency and phase-frequency characteristics of a network, it is generally necessary to use a vector network analyzer for measurement. However, a vector network analyzer is complex in technology and high in cost, and the price of the simplest configuration is more than 10,000 yuan. However, for scientific research institutes or enterpr...

Claims

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Application Information

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IPC IPC(8): G01R25/00G01R23/02
CPCG01R23/02G01R25/00
Inventor 罗勇章磊刘山
Owner SHENZHEN CITY SIGLENT TECH
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