CN204649862U - A kind of Multi probe near field antenna test macro - Google Patents
A kind of Multi probe near field antenna test macro Download PDFInfo
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- CN204649862U CN204649862U CN201520292701.7U CN201520292701U CN204649862U CN 204649862 U CN204649862 U CN 204649862U CN 201520292701 U CN201520292701 U CN 201520292701U CN 204649862 U CN204649862 U CN 204649862U
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- 238000005070 sampling Methods 0.000 claims abstract description 25
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 6
- 238000010079 rubber tapping Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 36
- 230000010287 polarization Effects 0.000 claims description 9
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- 238000004891 communication Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
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- 238000010295 mobile communication Methods 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of Multi probe near field antenna test macro, comprise Multi probe near field antenna testing apparatus, this equipment comprises supporting construction, arch ring, electronic box, radio-frequency radiation signal sampling probe, pole, luggage carrier, turntable, servomotor; Probe number is 10-200, and be evenly arranged on arch ring according to certain angle interval, arch ring is fixing on the support structure, U-shaped suction ripple is provided with cotton inside arch ring, inhale ripple cotton by arch ring entirety parcel for some pieces, probe stretches out from the cotton tapping of suction ripple and points to arch ring center respectively, pole lower end connects turntable through arch ring, luggage carrier is located at pole upper end, and luggage carrier carrying measured object makes measured object be in arch ring center, described turntable is multi-axis turntable, and described servomotor is connected to described multi-axis turntable and drives described multi-axis turntable to rotate.The utility model testing efficiency significantly improves, measuring accuracy is high, has greatly saved place scope simultaneously, has also improved the convenience of operation.
Description
Technical field
The present invention relates to antenna measurement system, more particularly, relate to the Multi probe near field antenna measurements system of a kind of antenna active and passive measurement.
Background technology
The fast development of mobile communication has promoted the R&D work of antenna, domestic occurred some produce per year antennas reach millions of, kind reach hundreds of more than enterprise, the product of these enterprises covers the small size antenna of consumer electronics product use, the medium-sized or large-scale antenna of the equipment use such as mobile communication base station, war industry equipment.The speed of antenna measurement, precision and the bottleneck that measured object type coverage rate has become the Corporation R & D progress of work can be surveyed.
There is following defect in traditional single probe antenna measuring system: in measurement tested antenna must before a single probe Two Dimensional Rotating, to guarantee to surround the field of this tested antenna on a sphere, because this Two Dimensional Rotating needs the at substantial time, cause single probe measurement systematic survey inefficiency; Measuring Time is long; Due to environmental change, the probability that the measurement problem that the external factors such as instrument instability cause occurs is higher; Traditional single probe measurement system, in order to obtain higher efficiency, often reduces sampling density; Traditional far field test system needs very large test site when building, floor area needs nearly thousand square meters even larger; In addition, small-sized its measured object full-size of Multi probe near field antenna measurements system is restricted.
Above defect, is worth solving.
Summary of the invention
In order to overcome the deficiency of existing technology, the utility model provides a kind of Multi probe near field antenna test macro.
Technical solutions of the utility model are as described below:
A kind of Multi probe near field antenna test macro, comprise testing system software carrier, surveying instrument, Multi probe near field antenna testing apparatus, it is characterized in that, described Multi probe near field antenna testing apparatus comprises supporting construction, arch ring, electronic box, radio-frequency radiation signal sampling probe, pole, luggage carrier, turntable and servomotor, described radio-frequency radiation signal sampling probe is 10-200, and be evenly arranged on described arch ring according to certain angle interval, described arch ring is fixed in described supporting construction, U-shaped suction ripple is provided with cotton inside described arch ring, some blocks of described suction ripples are cotton by described arch ring entirety parcel, described radio-frequency radiation signal sampling probe stretches out from the cotton tapping of described suction ripple and points to described arch ring center respectively, described pole lower end connects described turntable through described arch ring, described luggage carrier is located at described pole upper end, and described luggage carrier carrying measured object makes measured object be in turntable described in described arch ring center is multi-axis turntable, described servomotor is connected to described multi-axis turntable and drives described multi-axis turntable to rotate.
According to the utility model of such scheme, described testing system software carrier is general commercial computing machine, special purpose computer, independently arrange or be integrated in the computer module that Multi probe marches into the arena in antenna measurement equipment.
According to the utility model of such scheme, described surveying instrument is passive measurement instrument or active surveying instrument, described passive measurement instrument is the instrument group that network analyzer or signal source and frequency spectrograph are combined into, and described active surveying instrument is the instrument group of communication synthesis tester or signal generator and signal analyzer composition.
According to the utility model of such scheme, described electronic box is integrated electronic box, or the assembly of the separation electronic box of more than 2 or 2.
Further, described electronic box comprises instrument switching device shifter, probe control device, turntable control device, power module, reception amplifier, emission amplifier and transmission switching device shifter.
Further, in described electronic box, being provided with multiple multipath high-speed electronic switch, opening by controlling multipath high-speed electronic switch, close different path and can select corresponding described radio-frequency radiation signal sampling probe and polarization.
According to the utility model of such scheme, there is axially extending bore described pole inside, and is connected to the transmission switching device shifter of electronic box by the radio frequency line in axially extending bore.
According to the utility model of such scheme, described radio-frequency radiation signal sampling probe is for having the covering ultra wideband sampling probe of the polarization of two mutual square crossings.
According to the utility model of such scheme, the described turntable number of axle is 1-5 axle, and the number of axle and the described servomotor quantity of described multi-axis turntable match, and described multi-axis turntable often increases by an axle correspondence and increases a described servomotor.
According to the utility model of such scheme, described turntable is provided with urgent trigger switch, the trigger emergency switch when turntable occurs mobile excessive, moving process emergency termination.
According to the utility model of said structure, its beneficial effect is,
1, the utility model testing efficiency significantly improves, the dual polarization ultra broadband linear transducer array that 360 degree are surrounded measured object is enclosed outside measured object, replace slow mechanical scanning by swift electron scanning, measured object only needs one dimension rotation can determine to surround the field on a sphere of this tested antenna.
2, the utility model measuring accuracy is high, and without the need to sacrificing sampling precision, measuring accuracy has significant advantage.
3, about the utility model measurement place only needs 100 square meters, place scope has greatly been saved.
4, the utility model maximum detection measured object size can reach 4.6 meters, and measured object size has clear superiority.
5, in the utility model, the field of test macro to measured object of 23 probes describes sampling number is 2208, and this process need turntable turned position changes 2 times, and each revolving table position turntable angular turn 11 times, relatively single probe system testing efficiency improves more than 43 times.
6, the utility model is without the need to manual switchover testing tool, and automatic switchover instrument, operation ease obviously promotes.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture block diagram;
Fig. 2 is the utility model electric box structure block diagram;
Fig. 3 is the utility model intermediate station structural representation;
Fig. 4 is the signal path schematic diagram in the utility model embodiment one;
Fig. 5 measures agent structure schematic diagram in the utility model embodiment one;
Fig. 6 is the structural representation of luggage carrier in the utility model embodiment one;
Fig. 7 is the structural representation of U-shaped suction ripple cotton in the utility model embodiment one.
Fig. 8 is the signal path schematic diagram in the utility model embodiment two;
Fig. 9 is the structural representation of the miniature antenna in the utility model embodiment two;
Figure 10 is the measurement agent structure schematic diagram in the utility model embodiment three;
Figure 11 is the front view of the turntable in the utility model embodiment three;
Figure 12 is the structural representation of the turntable in the utility model embodiment three;
Figure 13 is the goods rack structure schematic diagram in the utility model embodiment three;
In the drawings, 1, arch ring; 2, support; 3, ripple is inhaled cotton; 4, radio-frequency radiation signal sampling probe; 5, pole; 6, turntable; 7, servomotor; 8, trigger switch; 9, electronic box; 10, Multi probe near field antenna testing apparatus.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is conducted further description:
As Figure 1-3, the utility model provides a kind of Multi probe near field antenna test macro, comprise testing system software carrier, surveying instrument, Multi probe near field antenna testing apparatus 10, Multi probe near field antenna testing apparatus 10 comprises supporting construction, arch ring 1, electronic box 9, radio-frequency radiation signal sampling probe 4, pole 5, luggage carrier, turntable 6 and servomotor 7.
Preferably, radio-frequency radiation signal sampling probe 4 is for having the covering ultra wideband sampling probe of the polarization of two mutual square crossings, its number is 10-200, and be evenly arranged on arch ring 1 according to certain angle interval, arch ring 1 is fixing on the support structure, U-shaped suction ripple cotton 3 is provided with inside arch ring 1, inhale ripple cotton 3 by arch ring 1 entirety parcel for some pieces, radio-frequency radiation signal sampling probe 4 stretches out from cotton 3 tappings of suction ripple and points to arch ring 1 center respectively, pole 5 lower end connects turntable 6 through arch ring 1, luggage carrier is located at pole 5 upper end, and luggage carrier carrying measured object makes measured object be in arch ring 1 center, turntable 6 is multi-axis turntable, servomotor 7 is connected to multi-axis turntable and drives multi-axis turntable to rotate.
Preferably, there is axially extending bore pole 5 inside, and is connected to the transmission switching device shifter of electronic box 9 by the radio frequency line in axially extending bore.
Electronic box 9 is integrated electronic box, or the assembly of the separation electronic box of more than 2 or 2.Electronic box 9 comprises instrument switching device shifter, probe control device, turntable control device, power module, reception amplifier, emission amplifier and transmission switching device shifter.Being provided with multiple multipath high-speed electronic switch in electronic box 9, opening by controlling multipath high-speed electronic switch, close different path corresponding radio-frequency radiation signal sampling can be selected to pop one's head in 4 and polarization.
Testing system software carrier is general commercial computing machine, special purpose computer, independently arrange or be integrated in the computer module that Multi probe marches into the arena in antenna measurement equipment.
Preferably, the turntable number of axle is 1-5 axle, and the number of axle and servomotor 7 quantity of multi-axis turntable match, and multi-axis turntable often increases by an axle correspondence and increases a servomotor 7.Turntable is provided with urgent trigger switch 8, the trigger emergency switch 8 when turntable 6 occurs mobile excessive, moving process emergency termination.
Embodiment one
As shown in figs. 4-7 in the present embodiment, radio-frequency radiation signal sampling 4 numbers of popping one's head in are 127, software carrier operating measurement software control system carries out passive measurement, its carrier is connected to surveying instrument and measuring equipment and software carrier communication, and software carrier is connected to electronic box 9 and is controlled all modules of whole electronic box 9 by the control circuit board in electronic box 9.Surveying instrument is passive measurement instrument, and passive measurement instrument is used for realizing measuring antenna radiation pattern, gain, the sourceless characteristics such as efficiency.The network analyzer that passive measurement instrument can use market common, the multiple stage instrument that also integrated level can be used lower realizes network analyzer function, is combined into as used signal source and frequency spectrograph the instrument group realizing non-source test.
Turntable 6 in the present embodiment uses 5 axle turntables, and electronic box 9 is divided into multiple combining and becomes rack and independently place.Software carrier is connected to the control circuit board of electronic box 9 by network interface, and is communicated with servomotor 7 by control circuit board, thus control 5 axle turntables drive measured objects to carry out at surface level, and arch ring 1 rotation, adjust up and down, vertical arch face moves, and falls and lifts.Why adopt the turntable 6 of 5 axles to be because 127 probe system volumes are large, the dismounting of measured object, move operation just, achieve pole 5 easily and fell and lifted and measured object fine position.After measured object places and adjusts position, measured object only carries out the rotation of surface level and arch ring 1, measured object often rotates to a state and just keeps current pose, control 127 probes by software carrier by electronic box and open scanning one by one, carry out one-shot measurement, so repeatedly until measure all point data software on encirclement measured object 360 sphere.
Adopt dual polarization ultra broadband 127 linear transducer array, during measurement, only need tested antenna to carry out one dimension 180 degree rotation, measure efficiency and greatly promote.Because the test duration is short, test and carry out under the unreflected dark room conditions of shielding, relative to far field test, 127 probe near field antenna measurements system stability, the performances such as accuracy have better guarantee.Because 127 probe near field antenna measurements systems adopt near field measurements, sample to Near-field Data and the strict algorithm such as pass through to push away outside the venue draws far-field radiation parameter, (about 10m*10m*12m) realization measurement in less space, greatly saves space cost.
Embodiment two
As Figure 8-9, with embodiment one unlike, in the present embodiment, surveying instrument is active surveying instrument, and active surveying instrument is used for realizing measuring the radiation power of measured object, the active nature such as receiving sensitivity.The communication synthesis tester that active surveying instrument can use market common, the multiple devices that also integrated level can be used lower realize communication and increase and tester function, and the instrument group as signal generator plus signal analyser composition realizes the function of active surveying instrument.
Embodiment three
As shown in figures 10-13, with embodiment one unlike, in the present embodiment, radio-frequency radiation signal sampling 4 numbers of popping one's head in are 23, and turntable uses the turntable 6 of 2 axles.It is 2208 that the field of this test macro to measured object describes sampling number, and this process need turntable 6 turned position changes 2 times, and each turntable 6 position turntable angular turn 11 times, relatively single probe system testing efficiency improves more than 43 times.
In the present embodiment, software carrier operating measurement software control system carries out active or passive measurement.As shown in figure 13, luggage carrier during active test is cylindrical structural, and carrier is connected to surveying instrument and measuring equipment and software carrier communication, and software carrier is connected to electronic box 9 and is controlled all modules of whole electronic box 9 by the control circuit board in electronic box 9.
Software carrier is connected to the control circuit board of electronic box 9 by network interface, and communicated with servomotor 7 by control circuit board, thus the turntable 6 controlling 2 axles drives measured object to carry out in surface level and arch ring 1 rotation, measured object often rotates to a state and just keeps current pose, control 23 probes by software carrier by electronic box 9 and open scanning one by one, carry out one-shot measurement, so repeatedly until measure all point data software on encirclement measured object 360 sphere.
Specific practice when measuring each time is described below:
Surveying instrument is connected to electronic box by its radio frequency interface and is finally connected to each probe on arch ring and the radio frequency line in pole.During system works, software carrier control electronic box and instrument also carry out information interaction with it, and control signal is generally digital signal.Measured signal belongs to radiofrequency signal, its path is as shown in Fig. 1,8, in measured object passive transmitting performance measurement, radiofrequency signal reaches electronic box from the output port of network analyzer and carries out processing the radio frequency line reached again pole, reach measured object that pole radio frequency line is connected to again and transfer wireless signal transmission to by measured object, probe receives wireless signal that measured object launches and is reached electronic box and carry out the receiving port that then single treatment passes network analyzer back again.
When measured object dumb performance measurement, the transmission direction of radiofrequency signal is reverse with above-mentioned direction, namely radiofrequency signal reaches electronic box from the delivery outlet of network analyzer, carry out processing reaching probe again, give off wireless signal through probe, measured object receives wireless signal and reaches by the radio frequency line in pole the receiving port that electronic box reaches network analyzer again.Above-mentioned process comprises amplification, filtering but be not limited to this.
In active measurement, during for measured object measurement of emitting performance, radiofrequency signal reaches by the radio frequency line in electronic box and pole the miniature antenna that radio frequency line is connected to from comprehensive tester emission port, carries out information interaction by the mode of wireless connections and measured object.Measured object is sent signal and is received by popping one's head in and the receiving port being reached comprehensive tester by electronic box.When measuring for measured object receptivity in active measurement, radiofrequency signal sends from comprehensive tester emission port and enters probe through electronic box, and the wireless signal that probe is launched is received by measured object.Measured object and miniature antenna carry out wireless connections and interactive information, and these information enter comprehensive tester receiving port by pole radio frequency line through electronic box.
The utility model encloses the dual polarization ultra broadband linear transducer array that 360 degree are surrounded measured object outside measured object, replaces slow mechanical scanning by swift electron scanning, and measured object only needs one dimension rotation can determine to surround the field on a sphere of this tested antenna.Measure on efficiency theory and can improve more than 254 times.
It is long because measured object will carry out the Measuring Time that Two Dimensional Rotating causes that the utility model solves traditional single probe measurement system, measures efficiency low, measure the problem being subject to environment and instrumental effects.Solve traditional far field test easily affected by environment, and the problem that place dimensional requirement is strict.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to the utility model claims.
By reference to the accompanying drawings exemplary description is carried out to the utility model patent above; the realization of obvious the utility model patent is not subject to the restrictions described above; as long as have employed the various improvement that method is conceived and technical scheme is carried out of the utility model patent; or the design of the utility model patent and technical scheme directly applied to other occasion, all in protection domain of the present utility model without to improve.
Claims (10)
1. a Multi probe near field antenna test macro, comprise testing system software carrier, surveying instrument, Multi probe near field antenna testing apparatus, it is characterized in that, described Multi probe near field antenna testing apparatus comprises supporting construction, arch ring, electronic box, radio-frequency radiation signal sampling probe, pole, luggage carrier, turntable and servomotor;
Described radio-frequency radiation signal sampling probe is 10-200, and be evenly arranged on described arch ring according to certain angle interval, described arch ring is fixed in described supporting construction, U-shaped suction ripple is provided with cotton inside described arch ring, some blocks of described suction ripples are cotton by described arch ring entirety parcel, described radio-frequency radiation signal sampling probe stretches out from the cotton tapping of described suction ripple and points to described arch ring center respectively, described pole lower end connects described turntable through described arch ring, described luggage carrier is located at described pole upper end, and described luggage carrier carrying measured object makes measured object be in described arch ring center, described turntable is multi-axis turntable, described servomotor is connected to described multi-axis turntable and drives described multi-axis turntable to rotate.
2. a kind of Multi probe near field antenna test macro according to claim 1, it is characterized in that, described testing system software carrier is general commercial computing machine, special purpose computer, independently arrange or be integrated in the computer module that Multi probe marches into the arena in antenna measurement equipment.
3. a kind of Multi probe near field antenna test macro according to claim 1, it is characterized in that, described surveying instrument is passive measurement instrument or active surveying instrument, described passive measurement instrument is the instrument group that network analyzer or signal source and frequency spectrograph are combined into, and described active surveying instrument is the instrument group of communication synthesis tester or signal generator and signal analyzer composition.
4. a kind of Multi probe near field antenna test macro according to claim 1, it is characterized in that, described electronic box is integrated electronic box, or the assembly of the separation electronic box of more than 2 or 2.
5. a kind of Multi probe near field antenna test macro according to claim 4, it is characterized in that, described electronic box comprises instrument switching device shifter, probe control device, turntable control device, power module, reception amplifier, emission amplifier and transmission switching device shifter.
6. a kind of Multi probe near field antenna test macro according to claim 4, it is characterized in that, being provided with multiple multipath high-speed electronic switch in described electronic box, opening by controlling multipath high-speed electronic switch, close different path and can select corresponding described radio-frequency radiation signal sampling probe and polarization.
7. a kind of Multi probe near field antenna test macro according to claim 1, it is characterized in that, there is axially extending bore described pole inside, and is connected to the transmission switching device shifter of electronic box by the radio frequency line in axially extending bore.
8. a kind of Multi probe near field antenna test macro according to claim 1, is characterized in that, described radio-frequency radiation signal sampling probe is for having the covering ultra wideband sampling probe of the polarization of two mutual square crossings.
9. a kind of Multi probe near field antenna test macro according to claim 1, it is characterized in that, the described turntable number of axle is 1-5 axle, and the number of axle and the described servomotor quantity of described multi-axis turntable match, and described multi-axis turntable often increases by an axle correspondence and increases a described servomotor.
10. a kind of Multi probe near field antenna test macro according to claim 9, it is characterized in that, described turntable is provided with urgent trigger switch, the trigger emergency switch when turntable occurs mobile excessive, moving process emergency termination.
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