CN101452013B - Switch filter array box system - Google Patents
Switch filter array box system Download PDFInfo
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- CN101452013B CN101452013B CN2009100760206A CN200910076020A CN101452013B CN 101452013 B CN101452013 B CN 101452013B CN 2009100760206 A CN2009100760206 A CN 2009100760206A CN 200910076020 A CN200910076020 A CN 200910076020A CN 101452013 B CN101452013 B CN 101452013B
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- box system
- array box
- filter
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- 238000001228 spectrum Methods 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 abstract description 15
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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Abstract
The invention provides a switch filter array case system, used for calibration of a spectrum analyzer and a vector signal analyzer. The switch filter array case system, comprises a transformer used for converting AC into DC and providing control voltage and eight switches, two 8-to-1 RF switches and a plurality of RF lines and the like. According to the inventive switch filter array case system, a single discrete filter is integrated together, after connecting an input port and an output port of the switch filter array case system, the required filter is selected through the switch, thereby realizing filtering, accordingly once connecting, multiple usage, testing time and manpower are greatly saved. The invention can be conveniently applied to a spectrum analyzer automatic calibration system and the automatic calibration requiring the filters.
Description
Technical field
The present invention relates generally to the switch filter system, relate more specifically to the switch filter system of a kind of spectrum analyzer and VSA calibration usefulness.
Background technology
At the radio communication metering field, spectrum analyzer and VSA be the right and wrong instrument of usefulness usually all, according to the national regulation needs its parameters is calibrated.Calibration spectrum analyzer and VSA two, need use the low-pass filter of institute's measured frequency point when third harmonic distortion and the third order intermodulation distortion of calibrating spectrum analyzer.Because required wave filter is more, that often uses has 8, connects each filters to test respectively, very time-consuming, does not also utilize automatic test.
Therefore; In view of the foregoing; Need the switch filter system that a kind of spectrum analyzer and VSA calibration usefulness are provided badly, can the wave filter of 8 Frequency points commonly used in testing at ordinary times be incorporated in the middle of the system, when testing like this; Only need the switch filter system be inserted, can connect this wave filter path by required wave filter corresponding switch then.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of switch filter array box system, it is characterized in that comprising:
Transformer is used for exchanging the commentaries on classics direct current, and control voltage is provided;
N switch is used for manually control and selects a corresponding N RF switch path, and wherein N is a natural number, and N >=2;
2 N select 1 RF switch, are used for selecting a road of N RF switch path;
N wave filter selects between 1 RF switch at said 2 N, constitutes a corresponding N RF switch path; And
Radio frequency line is used to connect a said N switch, and 2 N select 1 RF switch, N wave filter.
According to a preferred embodiment of the invention, wherein the power supply of all switches and RF switch provides by transformer, and this transformer converts 220 volts of alternating voltages into DC voltage.
According to a preferred embodiment of the invention; When pressing one of them switch; The wave filter input/output terminal that 2 N select 1 RF switch to connect simultaneously to choose; After thereby the signal that gets into the switch filter array box system input end selects 1 RF switch through N, through selecting 1 RF switch to output to output terminal through second N again behind one of them wave filter.
According to a preferred embodiment of the invention, the number N of wherein said N switch=8.
According to a preferred embodiment of the invention, wherein said switch filter array box system uses radio frequency line to link to each other with spectrum analyzer with signal generator, is used to calibrate spectrum analyzer.
According to a preferred embodiment of the invention, wherein said switch filter array box system uses radio frequency line to link to each other with VSA with signal generator, is used for the calibration vector signal analyzer.
The present invention is applied to above-mentioned switch filter array box system in the automatic calibration system of frequency spectrum analyzer; Can realize PSA, ESA, 856 and 859 series to Aglient company; The R31 of Advantest company, R32 series, the full-automation calibration of the spectrum analyzer of the FSU of Rohde&Schwarz company and FSP series or the like.After this filter system has been arranged, can accelerate to test the efficient of spectrum analyzer and VSA, save time.
Switch filter array box system according to the present invention has been realized the function that the single filter with separation is integrated together; After connecting the IO port of switch filter array box; Through the wave filter that the switch selection needs, just can realize filter function, accomplished once to connect; Repeatedly use, saved test duration and manpower greatly.Can very conveniently be applied in the automatic calibration system of frequency spectrum analyzer, and other need be used in the automated calibration system of these wave filters.
Though will combine certain exemplary enforcement and method of application to describe the present invention hereinafter, and it will be appreciated by those skilled in the art that to not being intended to the present invention is limited to these embodiment.Otherwise, be intended to cover all substitutes, correction and the equivalent that are included in defined spirit of the present invention of appending claims and the scope.
Other advantages of the present invention, target; To in instructions subsequently, set forth to a certain extent with characteristic; And to a certain extent,, perhaps can from practice of the present invention, obtain instruction based on being conspicuous to those skilled in the art to investigating of hereinafter.Target of the present invention and other advantages can be passed through following instructions, claims, and the structure that is particularly pointed out in the accompanying drawing realizes and obtains.
Description of drawings
In order to make the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is made further detailed description below, wherein:
Fig. 1 shows the systematic schematic diagram according to switch filter array box of the present invention;
Fig. 2 is the synoptic diagram according to test spectrum analyzer harmonic wave of the present invention.
Embodiment
Do further to describe in detail below in conjunction with the accompanying drawing specific embodiments of the invention.It should be noted that embodiment according to switch filter array box system of the present invention as just example, but the invention is not restricted to this embodiment.
Fig. 1 shows according to switch filter array box system schematic diagram of the present invention.The basic comprising of this system comprises transformer, is used for exchange changeing direct current, and control voltage is provided, and 8 switches, select 1 RF switch and some radio frequency lines for 28, or the like.
As shown in Figure 1, the power supply of all switches and RF switch is all provided by transformer, and this transformer converts 220 volts of alternating voltages into DC voltage.8 switches are respectively applied for manual control and select corresponding 8 RF switch paths.And 28 selected 1 RF switch, is used for selecting a road of 8 RF switch paths.8 wave filters in this switch filter array select between 1 RF switch at said 28, constitute corresponding 8 RF switch paths.
When pressing one of them switch; Select for 281 RF switch to connect the wave filter input/output terminal of choosing simultaneously; After thereby the signal that gets into the switch filter array box system input end selects 1 RF switch through 8, through selecting 1 RF switch to output to output terminal through second 8 again behind one of them wave filter.
Next, will the present invention be described by means of an application example.
Around this principle, we can select the wave filter that needs ourselves, are linked in this system, like 11MHz, 110MHz, 330MHz and 1.1GHz or the like.Can greatly facilitate our test, when measuring the harmonic wave of spectrum analyzer, during like needs filtering high-frequency signal, can use.
For instance, when test spectrum analyzer harmonic wave (Fig. 2 shows the synoptic diagram of test spectrum analyzer harmonic wave), signal generator output is received seized spectrum analyzer input end through low-pass filter (with the harmonic wave in filtered signal source).
Put signal generator f
0=2GHz, level are transferred to-10dBm.Put spectrum analyzer scan width 100kHz, the resolving power bandwidth is 1kHz, and input attenuation 0dB, datum are-10dBm that all the other are automatic.Regulate the spectrum analyzer centre frequency to f
0, 2f
0, 3f
0, read first-harmonic, secondary, third harmonic level L with peak value vernier function
1, L
2, L
3(dBm).
By formula second harmonic distortion is calculated in (1).By formula third harmonic distortion is calculated in (2).
α
2＝L
2-L
1 (dBc) (1)
α
3＝L
3-L
1 (dBc) (2)
Put Frequency Of Signal Generator f respectively
0Be other Frequency points, get final product by above method repetitive operation.
In the spectrum analyzer Auto-Test System, test secondary, third harmonic use switch filter array box system also easily quick.The secondary of test vector signal analyzer, third harmonic method are the same.
In sum; Switch filter array box system according to the present invention has been realized the function that the single filter with separation is integrated together, connect the IO port of switch filter array box after, the wave filter that needs through the switch selection; Just can realize filter function; Accomplished once to connect, repeatedly used, saved test duration and manpower greatly.Can very conveniently be applied in the automatic calibration system of frequency spectrum analyzer, and other need be used in the automated calibration system of these wave filters.Such as, when being used for the calibration vector signal analyzer, use radio frequency line to link to each other with VSA switch filter array box system, and get final product with the spectrum analyzer in the direct alternate figures 2 of VSA with signal generator.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (5)
1. switch filter array box system is characterized in that comprising:
Transformer is used for exchanging the commentaries on classics direct current, and control voltage is provided;
N switch is used for manually control and selects a corresponding N RF switch path, and wherein N is a natural number, and N >=2;
2 N select 1 RF switch, are used for selecting a road of N RF switch path;
N wave filter selects between 1 RF switch at said 2 N, constitutes a corresponding N RF switch path; And
Radio frequency line is used to connect a said N switch, and 2 N select 1 RF switch, N wave filter;
When pressing one of them switch; The wave filter input/output terminal that 2 N select 1 RF switch to connect simultaneously to choose; After thereby the signal that gets into the switch filter array box system input end selects 1 RF switch through N, through selecting 1 RF switch to output to output terminal through second N again behind one of them wave filter.
2. according to the switch filter array box system of claim 1, wherein the power supply of all switches and RF switch provides by transformer, and this transformer converts 220 volts of alternating voltages into DC voltage.
3. according to each switch filter array box system of claim 1-2, number N=8 of a wherein said N switch.
4. according to each switch filter array box system of claim 1-2, wherein said switch filter array box system uses radio frequency line to link to each other with spectrum analyzer with signal generator, is used to calibrate spectrum analyzer.
5. according to each switch filter array box system of claim 1-2, wherein said switch filter array box system uses radio frequency line to link to each other with VSA with signal generator, is used for the calibration vector signal analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100760206A CN101452013B (en) | 2009-01-04 | 2009-01-04 | Switch filter array box system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100760206A CN101452013B (en) | 2009-01-04 | 2009-01-04 | Switch filter array box system |
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| Publication Number | Publication Date |
|---|---|
| CN101452013A CN101452013A (en) | 2009-06-10 |
| CN101452013B true CN101452013B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100760206A Expired - Fee Related CN101452013B (en) | 2009-01-04 | 2009-01-04 | Switch filter array box system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IL243028A (en) | 2015-12-10 | 2017-09-28 | Elbit Systems Land & C4I Ltd | Multi-channel digital radio |
| CN107819396A (en) * | 2016-09-14 | 2018-03-20 | 方惠娥 | A kind of comprehensive forceful electric power isolation and electric source filter circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332130Y (en) * | 1998-07-10 | 1999-08-04 | 龙永庆 | Multi-segment addressable controlled amplification user concentrator |
| CN1226768A (en) * | 1997-12-29 | 1999-08-25 | 三星电子株式会社 | Base station transceiver for FH/CDMA system |
| CN2612188Y (en) * | 2003-04-29 | 2004-04-14 | 施志纣 | Addressing branching device having function of graded selection of channels |
| CN1578135A (en) * | 2003-06-26 | 2005-02-09 | 三星电子株式会社 | Switching filter module for dynamic multi-channel selection |
| CN101320965A (en) * | 2007-06-08 | 2008-12-10 | 中国科学院声学研究所 | Broadband low loss sonic surface wave switchable wave filter group |
-
2009
- 2009-01-04 CN CN2009100760206A patent/CN101452013B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226768A (en) * | 1997-12-29 | 1999-08-25 | 三星电子株式会社 | Base station transceiver for FH/CDMA system |
| CN2332130Y (en) * | 1998-07-10 | 1999-08-04 | 龙永庆 | Multi-segment addressable controlled amplification user concentrator |
| CN2612188Y (en) * | 2003-04-29 | 2004-04-14 | 施志纣 | Addressing branching device having function of graded selection of channels |
| CN1578135A (en) * | 2003-06-26 | 2005-02-09 | 三星电子株式会社 | Switching filter module for dynamic multi-channel selection |
| CN101320965A (en) * | 2007-06-08 | 2008-12-10 | 中国科学院声学研究所 | Broadband low loss sonic surface wave switchable wave filter group |
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| CN101452013A (en) | 2009-06-10 |
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