CN107147451A - S11 parameter test methods, device, equipment and the storage medium of ethernet port - Google Patents
S11 parameter test methods, device, equipment and the storage medium of ethernet port Download PDFInfo
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- CN107147451A CN107147451A CN201710438287.XA CN201710438287A CN107147451A CN 107147451 A CN107147451 A CN 107147451A CN 201710438287 A CN201710438287 A CN 201710438287A CN 107147451 A CN107147451 A CN 107147451A
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- supplemental characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/103—Reflected power, e.g. return loss
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Abstract
The present invention is applicable field of computer technology there is provided S11 parameter test methods, device, equipment and the storage medium of a kind of ethernet port, and this method includes：The S11 parameter testings request of the tested ethernet port of user's input is received, S11 parameter testings request includes tested input impedance, and it is 85 or 115 ohm to be tested input impedance；The S11 supplemental characteristics of tested ethernet port when input impedance is default input impedance are tested, it is 50 or 100 ohm to preset input impedance；The S11 supplemental characteristics obtained according to test, the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port are calculated by the first preset formula；According to the characteristic impedance real part and characteristic impedance imaginary part of the ethernet port, S11 supplemental characteristics when tested ethernet port is tested impedance are calculated by the second preset formula；S11 supplemental characteristics when the tested ethernet port of output is tested impedance, so as to simplify S11 supplemental characteristic test process when tested ethernet port is tested impedance.
Description
Technical field
The invention belongs to S11 parameter test methods, the dress of field of computer technology, more particularly to a kind of ethernet port
Put, equipment and storage medium.
Background technology
At present, ethernet port is the COM1 of most of communication equipments, and the S11 parameter testings of ethernet port are tools
There is one of communication equipment test item of ethernet port.According to Ethernet protocol IEEE802.3 regulation, ethernet port
S11 parameters need to meet certain limit requirement under the conditions of 85 ohm, 100 ohm and 115 ohm three kinds.However, existing radio frequency
Cable, balun change-over circuit, the output impedance of ethernet line and Network Analyzer are all single-ended 50 ohm or the Europe of difference 100
Nurse, it is difficult to realize the parameter testing of ethernet port S11 under 85 ohm and 115 ohmic conditions.
The content of the invention
It is situated between it is an object of the invention to provide a kind of S11 parameter test methods of ethernet port, device, equipment and storage
Matter, it is intended to solve, because prior art can not provide a kind of effective ethernet port S11 parameter test methods, to cause Ethernet
S11 parameter testings process it is complicated the problem of.
On the one hand, the invention provides a kind of S11 parameter test methods of ethernet port, methods described includes following steps
Suddenly：
The S11 parameter testings request of the tested ethernet port of user's input is received, is wrapped in the S11 parameter testings request
Tested input impedance is included, the tested input impedance is 85 or 115 ohm；
Asked according to the S11 parameter testings, tested ethernet side when test input impedance is default input impedance
The S11 supplemental characteristics of mouth, the default input impedance is 50 or 100 ohm；
According to the S11 supplemental characteristics tested and obtained, the tested ethernet port is calculated by the first preset formula
Characteristic impedance real part and characteristic impedance imaginary part；
According to the characteristic impedance real part and characteristic impedance imaginary part of the tested ethernet port, pass through the second preset formula meter
S11 supplemental characteristics when calculating the tested ethernet port for the tested impedance；
S11 supplemental characteristics when exporting the tested ethernet port for the tested impedance.
On the other hand, the invention provides a kind of S11 parameter test devices of ethernet port, described device includes：
Request reception unit, the S11 parameter testings request of the tested ethernet port for receiving user's input is described
S11 parameter testings request includes tested input impedance, and the tested input impedance is 85 or 115 ohm；
Data capture unit, for being asked according to the S11 parameter testings, when test input impedance is default input impedance
The S11 supplemental characteristics of the tested ethernet port, the default input impedance is 50 or 100 ohm；
Impedance computation unit, for testing obtained S11 supplemental characteristics according to described, institute is calculated by the first preset formula
State the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port；
Parameter calculation unit, for the characteristic impedance real part and characteristic impedance imaginary part according to the tested ethernet port,
S11 supplemental characteristics when the tested ethernet port is the tested impedance are calculated by the second preset formula；And
Data outputting unit, S11 supplemental characteristics during for exporting the tested ethernet port for the tested impedance.
On the other hand, present invention also offers a kind of ethernet port test equipment, including memory, processor and deposit
Store up the computer program that can be run in the memory and on the processor, computer journey described in the computing device
The step of S11 parameter test methods such as above-mentioned ethernet port are realized during sequence.
On the other hand, present invention also offers a kind of computer-readable recording medium, the computer-readable recording medium
Be stored with computer program, realizes that the S11 parameters such as above-mentioned ethernet port are surveyed when the computer program is executed by processor
The step of method for testing.
The present invention after receiving and including tested input impedance, tested ethernet port S11 parameter testings request, according to
The S11 supplemental characteristics of tested ethernet port when the input impedance of S11 parameter testing request for test is default input impedance, according to survey
Obtained S11 supplemental characteristics are tried, the characteristic impedance real part and characteristic for calculating tested ethernet port by the first preset formula hinder
Anti- imaginary part, according to the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port, quilt is calculated by the second preset formula
Survey S11 supplemental characteristics when ethernet port is tested impedance, S11 parameters when the tested ethernet port of output is tested impedance
Data, so as to be tested the S11 supplemental characteristics of ethernet port during input impedance default by test, are realized to being tested ethernet side
The test of S11 supplemental characteristics when mouth is tested impedance, simplifies S11 parameter numbers when tested ethernet port is tested impedance
According to test process.
Brief description of the drawings
Fig. 1 is the implementation process figure of the S11 parameter test methods for the ethernet port that the embodiment of the present invention one is provided；
Fig. 2 is the structural representation of the S11 parameter test devices for the ethernet port that the embodiment of the present invention two is provided；
Fig. 3 is the preferred structure schematic diagram of the S11 parameter test devices for the ethernet port that the embodiment of the present invention two is provided；
And
Fig. 4 is the structural representation for the ethernet port test equipment that the embodiment of the present invention three is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Implementing for the present invention is described in detail below in conjunction with specific embodiment：
Embodiment one：
Fig. 1 shows the implementation process of the S11 parameter test methods for the ethernet port that the embodiment of the present invention one is provided, and is
It is easy to explanation, illustrate only the part related to the embodiment of the present invention, details are as follows：
In step S101, the S11 parameter testings request of the tested ethernet port of user's input, the S11 parameters are received
Test request includes tested input impedance, and the tested input impedance is 85 or 115 ohm.
The embodiment of the present invention is applied to ethernet port test equipment or system, is damaged with the echo for testing ethernet port
Consumption, that is, test the S11 parameters of ethernet port.Herein, the S11 parameter testings request of reception includes tested input impedance,
The tested input impedance is 85 or 115 ohm, the ethernet port in the case of testing input impedance as 85 ohm or 115 ohm
S11 parameters.
In step s 102, asked according to the S11 parameter testings of reception, quilt when test input impedance is default input impedance
The S11 supplemental characteristics of ethernet port are surveyed, it is 50 or 100 ohm to preset input impedance.
In embodiments of the present invention, after the S11 parameter testings request of 85 or 115 ohm of tested input impedance is received,
Start the Network Analyzer connected, it is that default input impedance is 85 or 115 ohm to test input impedance by Network Analyzer
When tested ethernet port S11 supplemental characteristics, wherein, S11 supplemental characteristics include the angle in S11 numerical value and S11 supplemental characteristics
Angle value.
In step s 103, the S11 supplemental characteristics obtained according to test, tested Ethernet is calculated by the first preset formula
The characteristic impedance real part and characteristic impedance imaginary part of port.
In embodiments of the present invention, the angle value in the S11 numerical value and S11 supplemental characteristics in S11 supplemental characteristics, leads to
Cross formulaEstimated performance impedance real part, passes through formula Calculate special
Property imaginary impedance, so as to calculate the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port exactly.Wherein, Z0
Default input impedance is represented, R represents reflectance factor real part of the tested ethernet port in default input impedance, and X represents tested
Reflectance factor imaginary part of the ethernet port in default input impedance, R, X are joined by the S11 numerical value in S11 supplemental characteristics and S11
Angle value in number data, which is calculated, to be obtained.
Specifically, R=TMag*cos(TAng), X=TMag*sin(TAng), wherein, TMag=10(S/20),S represents the S11 numerical value in S11 supplemental characteristics, and A represents the angle value in S11 supplemental characteristics.
In step S104, according to the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port, pass through second
Preset formula calculates S11 supplemental characteristics when tested ethernet port is tested impedance.
In embodiments of the present invention, formula is passed throughCalculate tested ether
S11 supplemental characteristics when port is tested impedance are netted, wherein, Z0' represent tested input impedance, R1Characterization impedance real part, X1
Characterization imaginary impedance, S11 parameter numbers when tested ethernet port is tested impedance can be accurately obtained by the formula
According to, thus the S11 supplemental characteristics for being tested ethernet port under 50 or 100 ohm by Network Analyzer calculate obtain it is tested with
S11 supplemental characteristics when too net port is tested impedance, simplify S11 parameter numbers when tested ethernet port is tested impedance
According to acquisition process.Specifically, when tested input impedance is 85,When
When tested input impedance is 115 ohm,
In step S105, S11 supplemental characteristics when the tested ethernet port of output is tested impedance.
It all it is single-ended 50 or 100 ohm in view of Network Analyzer output impedance, it is impossible to be directly realized by 85 or 115 ohm of quilts
The S11 parameter measurements of input impedance are surveyed, therefore, in embodiments of the present invention, pass through the default input impedance (i.e. 50 or 100 of test
Ohm) when tested ethernet port S11 supplemental characteristics, realize the S11 parameters to being tested when ethernet port is tested impedance
Data test, simplifies S11 supplemental characteristic test process when tested ethernet port is tested impedance, reduces tested impedance
When S11 supplemental characteristics testing cost.
Embodiment two：
Fig. 2 shows the structure of the S11 parameter test devices for the ethernet port that the embodiment of the present invention two is provided, in order to just
In explanation, the part related to the embodiment of the present invention is illustrate only, including：
Request reception unit 21, the S11 parameter testings request of the tested ethernet port for receiving user's input, S11
Parameter testing request includes tested input impedance, and it is 85 or 115 ohm to be tested input impedance；
Data capture unit 22, for being asked according to S11 parameter testings, quilt when test input impedance is default input impedance
The S11 supplemental characteristics of ethernet port are surveyed, it is 50 or 100 ohm to preset input impedance；
Impedance computation unit 23, for the S11 supplemental characteristics obtained according to test, calculates tested by the first preset formula
The characteristic impedance real part and characteristic impedance imaginary part of ethernet port；
Parameter calculation unit 24, for the characteristic impedance real part and characteristic impedance imaginary part according to tested ethernet port, leads to
It is S11 supplemental characteristics when being tested impedance to cross the second preset formula and calculate tested ethernet port；And
Data outputting unit 25, for exporting S11 supplemental characteristics when tested ethernet port is tested impedance.
As shown in figure 3, in a preferred embodiment of the embodiment of the present invention, it is single that data capture unit 22 includes data acquisition
Member 221, for starting the Network Analyzer connected, quilt when input impedance is default input impedance is tested by Network Analyzer
Survey the S11 supplemental characteristics of ethernet port.
Impedance computation unit 23 includes impedance computation subelement 231, for the S11 numerical value in S11 supplemental characteristics and
Angle value in S11 supplemental characteristics, passes through formulaEstimated performance impedance real part, passes through formulaEstimated performance imaginary impedance, wherein, Z0Default input impedance is represented, R represents tested Ethernet
Reflectance factor real part of the port in default input impedance, X represents reflection of the tested ethernet port in default input impedance
Coefficient imaginary part, R, X are calculated by the angle value in the S11 numerical value and S11 supplemental characteristics in S11 supplemental characteristics and obtained.
Parameter calculation unit 24 includes parameter computation unit 241, for passing through the second preset formulaIt is when being tested impedance to calculate tested ethernet port
S11 supplemental characteristics, wherein, Z '0Represent tested input impedance, R1Characterization impedance real part, X1Characterization imaginary impedance.
In embodiments of the present invention, each unit of the S11 parameter test devices of ethernet port can by corresponding hardware or
Software unit realizes that each unit can be independent soft and hardware unit, can also be integrated into a soft and hardware unit, herein not
To limit the present invention.The embodiment of each unit refers to each correspondence step in embodiment one, will not be repeated here.
Embodiment three：
Fig. 4 shows the structure for the ethernet port test equipment that the embodiment of the present invention three is provided, for convenience of description, only
Show the part related to the embodiment of the present invention.
The ethernet port test equipment 4 of the embodiment of the present invention includes processor 40, memory 41 and is stored in storage
In device 41 and the computer program 42 that can be run on processor 40.The processor 40 is realized above-mentioned when performing computer program 42
Step in the S11 parameter test method embodiments of ethernet port, such as the step S101 to S105 shown in Fig. 1.Or, place
The work(of each unit in the S11 parameter test device embodiments of above-mentioned ethernet port is realized during the reason execution computer program 42 of device 40
Can, such as the function of module 21 to 25 shown in Fig. 2.
In embodiments of the present invention, when the processor 40 performs computer program 42, tested input impedance is included receiving
, be default defeated according to the input impedance of S11 parameter testing request for test after the S11 parameter testings request of tested ethernet port
Enter the S11 supplemental characteristics of tested ethernet port during impedance, the S11 supplemental characteristics obtained according to test pass through the first default public affairs
Formula calculates the characteristic impedance real part and characteristic impedance imaginary part of tested ethernet port, according to the characteristic impedance of tested ethernet port
Real part and characteristic impedance imaginary part, S11 parameter numbers when tested ethernet port is tested impedance are calculated by the second preset formula
According to S11 supplemental characteristics when the tested ethernet port of output is tested impedance, so that tested during input impedance default by test
The S11 supplemental characteristics of ethernet port, realize and test being tested S11 supplemental characteristics when ethernet port is tested impedance, letter
S11 supplemental characteristic test process when tested ethernet port is tested impedance is changed.Locate in the ethernet port test equipment 4
The step of reason device 40 is realized when performing computer program 42 specifically refers to the description of preceding method embodiment, no longer goes to live in the household of one's in-laws on getting married herein
State.
Example IV：
In embodiments of the present invention there is provided a kind of computer-readable recording medium, the computer-readable recording medium is deposited
Computer program is contained, the computer program realizes the S11 parameter test methods of above-mentioned ethernet port when being executed by processor
Step in embodiment, for example, the step S101 to S105 shown in Fig. 1.Or, it is real when the computer program is executed by processor
The function of each unit, such as function of module 21 to 25 shown in Fig. 2 in existing said apparatus embodiment.
In embodiments of the present invention, when the computer program is executed by processor, receiving includes tested input impedance, quilt
The S11 parameter testings request of ethernet port is surveyed, is when presetting input impedance according to the input impedance of S11 parameter testing request for test
The S11 supplemental characteristics of tested ethernet port, the S11 supplemental characteristics obtained according to test calculate quilt by the first preset formula
The characteristic impedance real part and characteristic impedance imaginary part of ethernet port are surveyed, according to the characteristic impedance real part of tested ethernet port and spy
Property imaginary impedance, S11 supplemental characteristics when tested ethernet port is tested impedance are calculated by the second preset formula, quilt is exported
S11 supplemental characteristics when ethernet port is tested impedance are surveyed, so that tested ethernet side during input impedance default by test
The S11 supplemental characteristics of mouth, realize the S11 supplemental characteristics test to being tested when ethernet port is tested impedance, simplify tested
S11 supplemental characteristic test process when ethernet port is tested impedance.On being realized when the computer program is executed by processor
The description that the step in the S11 parameter test method embodiments of ethernet port refers to preceding method embodiment is stated, herein not
Repeat again.
The computer-readable recording medium of the embodiment of the present invention can include that any of computer program code can be carried
Entity or device, recording medium, for example, the memory such as ROM/RAM, disk, CD, flash memory.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. the S11 parameter test methods of a kind of ethernet port, it is characterised in that methods described comprises the steps：
The S11 parameter testings request of the tested ethernet port of user's input is received, the S11 parameter testings request includes quilt
Input impedance is surveyed, the tested input impedance is 85 or 115 ohm；
Asked according to the S11 parameter testings, tested ethernet port when test input impedance is default input impedance
S11 supplemental characteristics, the default input impedance is 50 or 100 ohm；
According to the S11 supplemental characteristics tested and obtained, the spy of the tested ethernet port is calculated by the first preset formula
Property impedance real part and characteristic impedance imaginary part；
According to the characteristic impedance real part and characteristic impedance imaginary part of the tested ethernet port, institute is calculated by the second preset formula
S11 supplemental characteristics when stating tested ethernet port for the tested impedance；
S11 supplemental characteristics when exporting the tested ethernet port for the tested impedance.
2. the method as described in claim 1, it is characterised in that test input impedance when being default input impedance it is described it is tested with
The step of netting very much the S11 supplemental characteristics of port, including：
Start the Network Analyzer connected, when testing input impedance by the Network Analyzer for the default input impedance
The S11 supplemental characteristics of the tested ethernet port.
3. the method as described in claim 1, it is characterised in that according to the S11 supplemental characteristics tested and obtained, pass through first
The step of preset formula calculates characteristic impedance real part and the characteristic impedance imaginary part of the tested ethernet port, including：
The angle value in S11 numerical value and S11 supplemental characteristics in the S11 supplemental characteristics, passes through formulaThe characteristic impedance real part is calculated, passes through formulaCalculate described
Characteristic impedance imaginary part, wherein, the Z0The default input impedance is represented, R represents the tested ethernet port described pre-
If reflectance factor real part during input impedance, X represents reflection of the tested ethernet port in the default input impedance
Coefficient imaginary part, R, X are calculated by the angle value in the S11 numerical value and S11 supplemental characteristics in the S11 supplemental characteristics and obtained.
4. the method as described in claim 1, it is characterised in that according to the characteristic impedance real part of the tested ethernet port and
Characteristic impedance imaginary part, S11 parameters when the tested ethernet port is the tested impedance are calculated by the second preset formula
The step of data, including：
Pass through the second preset formulaCalculate the quilt
S11 supplemental characteristics when ethernet port is the tested impedance are surveyed, wherein, the Z '0Represent the tested input impedance, R1
Represent the characteristic impedance real part, X1Represent the characteristic impedance imaginary part.
5. the S11 parameter test devices of a kind of ethernet port, it is characterised in that described device includes：
Request reception unit, the S11 parameter testings request of the tested ethernet port for receiving user's input, the S11 ginsengs
Number test request includes tested input impedance, and the tested input impedance is 85 or 115 ohm；
Data capture unit, for being asked according to the S11 parameter testings, described in when test input impedance is default input impedance
The S11 supplemental characteristics of tested ethernet port, the default input impedance is 50 or 100 ohm；
Impedance computation unit, for testing obtained S11 supplemental characteristics according to described, the quilt is calculated by the first preset formula
Survey the characteristic impedance real part and characteristic impedance imaginary part of ethernet port；
Parameter calculation unit, for the characteristic impedance real part and characteristic impedance imaginary part according to the tested ethernet port, passes through
Second preset formula calculates S11 supplemental characteristics when the tested ethernet port is the tested impedance；And
Data outputting unit, S11 supplemental characteristics during for exporting the tested ethernet port for the tested impedance.
6. device as claimed in claim 5, it is characterised in that the data capture unit includes：
Data acquisition subelement, for starting the Network Analyzer connected, input impedance is tested by the Network Analyzer
The S11 supplemental characteristics of tested ethernet port during for the default input impedance.
7. device as claimed in claim 5, it is characterised in that the impedance computation unit includes：
Impedance computation subelement, for the angle value in the S11 numerical value and S11 supplemental characteristics in the S11 supplemental characteristics,
Pass through formulaThe characteristic impedance real part is calculated, passes through formula
The characteristic impedance imaginary part is calculated, wherein, the Z0The default input impedance is represented, R represents the tested ethernet port
Reflectance factor real part in the default input impedance, X represents the tested ethernet port in the default input impedance
When reflectance factor imaginary part, R, X are calculated by angle value in the S11 numerical value and S11 supplemental characteristics in the S11 supplemental characteristics
Obtain.
8. device as claimed in claim 5, it is characterised in that the parameter calculation unit includes：
Parameter computation unit, for passing through the second preset formulaCalculate
S11 supplemental characteristics when the tested ethernet port is the tested impedance, wherein, the Z '0Represent the tested input
Impedance, R1Represent the characteristic impedance real part, X1Represent the characteristic impedance imaginary part.
9. a kind of ethernet port test equipment, including memory, processor and it is stored in the memory and can be in institute
State the computer program run on processor, it is characterised in that realized described in the computing device during computer program as weighed
The step of profit requires any one of 1 to 4 methods described.
10. a kind of computer-readable recording medium, the computer-readable recording medium storage has computer program, its feature exists
In the step of realizing such as any one of Claims 1-4 methods described when the computer program is executed by processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710438287.XA CN107147451A (en) | 2017-06-12 | 2017-06-12 | S11 parameter test methods, device, equipment and the storage medium of ethernet port |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710438287.XA CN107147451A (en) | 2017-06-12 | 2017-06-12 | S11 parameter test methods, device, equipment and the storage medium of ethernet port |
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| US20080195344A1 (en) * | 2007-02-14 | 2008-08-14 | Suss Microtec Test Systems Gmbh | Method for determining measurement errors in scattering parameter measurements |
| CN103399286A (en) * | 2013-07-16 | 2013-11-20 | 中国电子科技集团公司第四十一研究所 | Measurement calibration method for multi-characteristic impedance network |
| CN106772173A (en) * | 2016-11-15 | 2017-05-31 | 中国电子科技集团公司第四十研究所 | Electronic Calibration part Port Identification Method based on impedance conversion |
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2017
- 2017-06-12 CN CN201710438287.XA patent/CN107147451A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523363A (en) * | 2003-02-18 | 2004-08-25 | ���루����������˾ | Method of testing transmission line characteristic impedance |
| US20080195344A1 (en) * | 2007-02-14 | 2008-08-14 | Suss Microtec Test Systems Gmbh | Method for determining measurement errors in scattering parameter measurements |
| CN103399286A (en) * | 2013-07-16 | 2013-11-20 | 中国电子科技集团公司第四十一研究所 | Measurement calibration method for multi-characteristic impedance network |
| CN106772173A (en) * | 2016-11-15 | 2017-05-31 | 中国电子科技集团公司第四十研究所 | Electronic Calibration part Port Identification Method based on impedance conversion |
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Application publication date: 20170908 |