CN206096274U - Multiplying power sampling antenna testing system - Google Patents
Multiplying power sampling antenna testing system Download PDFInfo
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- CN206096274U CN206096274U CN201621091260.5U CN201621091260U CN206096274U CN 206096274 U CN206096274 U CN 206096274U CN 201621091260 U CN201621091260 U CN 201621091260U CN 206096274 U CN206096274 U CN 206096274U
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Abstract
The utility model discloses a multiplying power sampling antenna testing system. This system's transfer platform sets up in antenna probe ring holder bottom, is provided with a N antenna probe on the antenna probe ring holder, is the angle of relative antenna probe ring holder's central angle (360 between adjacent two antennas probe of an antenna probe from the 1st antenna probe to N2+1 X, ) N, X are the angle of the both ends of revolving stage mounted position for antenna probe ring holder's central angle, is the angle of relative antenna probe ring holder's central angle (360 between a N2+1 antenna probe and the N2+2 antenna probe X, ) / 2N, is the angle of relative antenna probe ring holder's central angle (360 between a N2+2 antenna probe and the N antenna probe X, ) N. The utility model provides a multiple probe technique SISO OTA test system measuring position quantity in the correlation technique limited, lead to the lower problem of measurement accuracy.
Description
Technical field
This utility model is related to radio-frequency performance field tests, in particular to a kind of multiplying power sampling Antenna testing system.
Background technology
The current test that whole machine radiance is increasingly paid close attention in mobile phone radio frequency performance test, this radiance reflection
The final transmitting of mobile phone and receptivity.Mainly there are two methods to investigate the radiance of mobile phone at present：One kind is
Judged from the radiance of antenna, be antenna test method more traditional at present, referred to as non-source test；Another kind be
In specific microwave dark room, the radiant power and receiving sensitivity of testing mobile phone, referred to as active test, it is also possible to become OTA (Over
The Air) active test.
The active tests of OTA stress the radioactivity that mobile phone is investigated in terms of the transmission power and receiving sensitivity of the whole machine of mobile phone
Energy.Active test is whole machine to be tested in specific microwave dark room in the transmission power of three dimensions all directions and is received sensitive
Degree, more can directly reflect the radiance of the whole machine of mobile phone.
The active tests of OTA, it is now many using single probe or Multi probe scheme.Wherein, Multi probe scheme is substantially than single probe
Scheme efficiency high.This Multi probe scheme, is uniformly arranged using antenna probes on circumference, turntable rotary shaft both sides antenna probes with regard to
The arrangement of turntable axisymmetry.Existing Multiple probe technique SISO OTA test systems, antenna probes symmetrically divide turntable rotating shaft
Cloth, its measure dot number is limited, and for example, although Multiple probe technique as shown in Figure 1 employs 23 probes, actually active measurement position
There are 23 points, this system cannot increase effective measurement position quantity；Using traditional switch case, radiofrequency signal switch speed is slow, leads
Cause whole time of measuring longer, if it is desired to improve effective measurement position quantity or reduce time of measuring that measurement efficiency is improved, can only
Rebuild system.
For the Multiple probe technique SISO OTA test system measurement position limited amounts in correlation technique, cause certainty of measurement
Relatively low problem, not yet proposes at present effective solution.
Utility model content
This utility model embodiment provides a kind of multiplying power sampling Antenna testing system, at least to solve in correlation technique
Multiple probe technique SISO OTA test system measurement position limited amounts, cause the technical problem that certainty of measurement is relatively low.
According to the one side of this utility model embodiment, there is provided a kind of multiplying power sampling Antenna testing system, including：If
Shielded anechoic chamber internal antenna probe ring support and turntable are placed in, wherein, turntable is arranged on antenna probes ring support bottom, antenna probes
N number of antenna probes are provided with ring support, wherein, setting angle of N number of antenna probes on antenna probes ring support is：From
1 antenna probes to relative antenna between the two neighboring antenna probes of the N/2+1 antenna probes is popped one's head in the central angle of ring support
Angle be (360-X)/N, wherein, X for turntable installation site two ends relative to the central angle of antenna probes ring support angle
Degree；The angle of the central angle of the probe ring support of relative antenna between N/2+1 antenna probes and the N/2+2 antenna probes is
(360-X)/2N；The angle of the central angle of the probe ring support of relative antenna between N/2+2 antenna probes and n-th antenna probes
Spend for (360-X)/N.
Further, setting angle of N number of antenna probes on antenna probes ring support is replaced by：From the 1st antenna
The angle popped one's head in the central angle of relative antenna probe ring support between the two neighboring antenna probes of the N/2 antenna probes is
(360-X)/N, wherein, X is the angle of the two ends relative to the central angle of antenna probes ring support of turntable installation site；N/2
Between individual antenna probes and the N/2+1 antenna probes relative antenna probe ring support central angle angle be (360-X)/
2N；The angle of the central angle of the probe ring support of relative antenna between N/2+1 antenna probes and n-th antenna probes is
(360-X)/N。
Further, N number of antenna probes are successively set on antenna probes ring support according to clockwise direction.
Further, system also includes：Control rack, by the antenna probes ring support in interface board and shielded anechoic chamber
The N number of antenna probes connection for arranging.
Further, speed-sensitive switch device is additionally provided with shielded anechoic chamber, wherein, interface board by speed-sensitive switch device with it is N number of
Antenna probes connect.
Further, control rack includes：Radio-frequency (RF) device, is connected by interface board with shielded anechoic chamber, for shielded anechoic chamber
Interior mulitpath is automatically switched.
Further, control rack also includes：Comprehensive test instrument, is connected by interface board with N number of antenna probes, is surveyed for launching
Amount signal simultaneously receives return signal, and shows measurement data.
Further, control rack also includes：Network Analyzer, is connected by interface board with shielded anechoic chamber, for screen
Cover darkroom to be calibrated, and measure calibration data.
Further, control rack also includes：Turntable controller, is connected by interface board with turntable, for controlling turntable
Rotation.
Further, the value of N is the positive integer more than or equal to 12.
In this utility model embodiment, multiplying power sampling Antenna testing system includes：It is arranged at the spy of shielded anechoic chamber internal antenna
Headring support and turntable, wherein, turntable is arranged on antenna probes ring support bottom, and N number of day is provided with antenna probes ring support
Line is popped one's head in, wherein, setting angle of N number of antenna probes on antenna probes ring support is：From the 1st antenna probes to N/2+
The angle of the central angle of relative antenna probe ring support is (360-X)/N between the two neighboring antenna probes of 1 antenna probes, its
In, X is the angle of the two ends relative to the central angle of antenna probes ring support of turntable installation site；The N/2+1 antenna probes
The angle of the central angle of relative antenna probe ring support is (360-X)/2N between the N/2+2 antenna probes；N/2+2
The angle of the central angle of relative antenna probe ring support is (360-X)/N between antenna probes and n-th antenna probes, is reached
Optimization antenna probes configuration improves the purpose of measurement efficiency and certainty of measurement, it is achieved thereby that improving to Multiple probe technique test system
Measurement efficiency and certainty of measurement technique effect, and then solve the Multiple probe technique SISO OTA test systems in correlation technique
Measurement position limited amount, causes the technical problem that certainty of measurement is relatively low.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain this utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of the Multiple probe technique SISO OTA test systems according to prior art；
Fig. 2 is the schematic diagram according to the multiplying power of this utility model embodiment sampling Antenna testing system；
Fig. 3 is the schematic diagram of the set location of the antenna probes according to this utility model embodiment；
Fig. 4 is the distribution of 24 antenna probes according to prior art；
Fig. 5 is the distribution of 12 antenna probes according to this utility model embodiment；
Fig. 6 is the distribution of 64 antenna probes according to prior art；
Fig. 7 is the distribution of 32 antenna probes according to this utility model embodiment；
Fig. 8 is the schematic diagram that track is measured according to the Multiple probe technique of prior art；
Fig. 9 is the measurement track (180 ° of rotation) of the Multiple probe technique turntable rotating shaft side antenna probes according to prior art
Schematic diagram；
Figure 10 is the measurement track (rotation of the Multiple probe technique turntable rotating shaft side antenna probes according to this utility model embodiment
Turn 180 °) schematic diagram；
Figure 11 is turntable rotating shaft both sides antenna under the efficient pretest pattern of Multiple probe technique according to this utility model embodiment
The schematic diagram of the measurement track (180 ° of rotation) of probe；
Figure 12 is turntable rotating shaft side antenna under the efficient pretest pattern of Multiple probe technique according to this utility model embodiment
The schematic diagram of the measurement track (being rotated by 360 °) of probe；And
Figure 13 is turntable rotating shaft both sides antenna under Multiple probe technique high precision measurement pattern according to this utility model embodiment
The schematic diagram of the measurement track (being rotated by 360 °) of probe.
Specific embodiment
In order that those skilled in the art more fully understand this utility model scheme, below in conjunction with this utility model reality
The accompanying drawing in example is applied, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of this utility model part, rather than the embodiment of whole.Based on the reality in this utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all should
When the scope for belonging to this utility model protection.
It should be noted that specification and claims of the present utility model and the term " first " in above-mentioned accompanying drawing,
" second " etc. is the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that so
The data for using can be exchanged in the appropriate case, so that embodiment of the present utility model described herein can be with except at this
In diagram or describe those beyond order implement.Additionally, term " comprising " and " having " and their any deformation, meaning
Figure is that covering is non-exclusive to be included, and for example, a series of process, system, product or the equipment for containing units is not necessarily limited to clearly
Those units listed to Chu, but may include clearly not listing or intrinsic for these processes, product or equipment
Other units.
According to this utility model embodiment, there is provided a kind of embodiment of multiplying power sampling Antenna testing system.
Fig. 2 is the schematic diagram according to the multiplying power of this utility model embodiment sampling Antenna testing system, as shown in Fig. 2 should
System can include：Shielded anechoic chamber internal antenna probe ring support and turntable are arranged at, wherein, turntable is arranged on antenna probes ring
Frame bottom, is provided with N number of antenna probes on antenna probes ring support, herein it should be noted that this utility model embodiment is to N
Value be not specifically limited, the value of N can be the positive integer more than or equal to 12, such as 12,32,64 etc..
Alternatively, setting angle of N number of antenna probes on antenna probes ring support can include two kinds of optional modes：
The first set-up mode can be：As shown in figure 3, adjacent to the N/2+1 antenna probes from the 1st antenna probes
The angle of the central angle of relative antenna probe ring support can be (360-X)/N between two antenna probes, wherein, X is turntable
Angle of the two ends of installation site relative to the central angle of antenna probes ring support；N/2+1 antenna probes and N/2+2 are individual
The angle of the central angle of relative antenna probe ring support can be (360-X)/2N between antenna probes；The N/2+2 antenna is visited
The angle of the central angle of relative antenna probe ring support can be (360-X)/N between head and n-th antenna probes.
Second set-up mode can be：From the 1st antenna probes to the two neighboring antenna probes of the N/2 antenna probes
Between relative antenna probe ring support central angle angle can be (360-X)/N, wherein, X for turntable installation site two
Hold the angle of the central angle relative to antenna probes ring support；Phase between the N/2 antenna probes and the N/2+1 antenna probes
Can be (360-X)/2N to the angle of the central angle of antenna probes ring support；The N/2+1 antenna probes is visited with n-th antenna
The angle of the central angle of relative antenna probe ring support can be (360-X)/N between head.
Set location of the above-mentioned cited antenna probes on antenna probes ring support can be described as：Antenna probes ring
Antenna probe installation location is with regard to antenna probes ring center non-uniform Distribution on support；Antenna probes peace on antenna probes ring support
Holding position is asymmetric with respect to big ring cutting face that turntable rotating shaft is located；On antenna probes ring support one on big ring cutting face that turntable rotating shaft is located
Angle on-fixed between the antenna probes installation site of side.
Alternatively, N number of antenna probes can be successively set on antenna probes ring support according to clockwise direction, it is also possible to
It is successively set on antenna probes ring support according to counter clockwise direction, this utility model embodiment is not specifically limited to it.
As shown in Fig. 2 the system can also include：Control rack, the control rack can be dark with shielding by interface board
The N number of antenna probes connection arranged on indoor antenna probes ring support.Alternatively, it is also provided with shielded anechoic chamber at a high speed
Derailing switch, wherein, interface board can be connected by speed-sensitive switch device with N number of antenna probes.
As shown in Fig. 2 the control rack in this utility model embodiment can include following component：
High-speed radio-frequency device, can be connected by interface board with shielded anechoic chamber, be can be used for a plurality of road in shielded anechoic chamber
Footpath is automatically switched, and switch speed is very fast, it is ensured that the stability in net system switching process.
Comprehensive test instrument, can be connected by interface board with N number of antenna probes, be can be used for emission measurement signal and received return
Signal, and show measurement data.
Network Analyzer, can be connected by interface board with shielded anechoic chamber, can be used for calibrating shielded anechoic chamber, and
Measurement calibration data.
Turntable controller, can be connected by interface board with turntable, can be used for controlling turntable rotation.
Following two alternative embodiments provide the contrast that two kinds of this utility model are distributed with the antenna probes of prior art
Example, Fig. 4 show the distribution of 24 antenna probes of the prior art, and Fig. 5 show 12 antennas in this utility model
The distribution of probe；Fig. 6 show the distribution of 64 antenna probes of the prior art, and Fig. 7 show 32 in this utility model
The distribution of individual antenna probes.
Can be obtained by contrast, the multiplying power sampling Antenna testing system of this utility model embodiment can realize following product
Pole meaning：
(1) antenna probes service efficiency is improved, improves space angle resolution.The multiplying power sampling of this utility model embodiment
Antenna testing system only can reach tradition using the antenna probes of traditional Multiple probe technique SISO OTA test system half quantity
The space angle resolution of Multiple probe technique SISO OTA test systems, referring specifically to analysis below：
Space angle resolution=the 360/X (X is antenna probes quantity) of traditional Multiple probe technique SISO OTA test systems,
For example：The scheme of 24 antenna probes shown in Fig. 4, its space angle resolution=360/24=15 °.
(X is antenna to the space angular resolution=360/2X of the multiplying power sampling Antenna testing system of this utility model embodiment
Probe quantity), for example：The scheme of 12 antenna probes shown in Fig. 5, its space angle resolution=360/24=15 °.
The position that this utility model passes through optimization antenna probes, is reduced in the case of space angle resolution identical is ensured
The quantity of the antenna probes for being used, in other words in the case of the antenna probes using equal number, this utility model reality
Applying the multiplying power sampling Antenna testing system of example can realize higher space angle resolution, and then can realize improving measurement effect
The effect of rate and certainty of measurement.For example：The scheme of 24 antenna probes can both realize the efficient mould of 15 ° of space angle resolution
Formula, can realize the high precision mode of 7.5 ° of space angle resolution again.
(2) to be integrated with single probe scheme accuracy of measurement good for the multiplying power sampling Antenna testing system of this utility model embodiment
And the advantage that Multi probe scheme measurement efficiency is high.
(3) the multiplying power sampling Antenna testing system of this utility model embodiment coordinates switching radio frequency case at a high speed, can be not
In the case of reducing measurement efficiency, with the certainty of measurement that less antenna probes number realizes multiple antennas.
Below will several Multi probe schemes of contrast measurement track, with it is vivider illustrate this utility model embodiment times
The beneficial effect of rate sampling Antenna testing system：Fig. 8 show the schematic diagram that existing Multiple probe technique measures track；Shown in Fig. 9
For the measurement track (180 ° of rotation) of existing Multiple probe technique turntable rotating shaft side antenna probes；Figure 10 show new Multi probe
The measurement track (180 ° of rotation) of method turntable rotating shaft side antenna probes；Figure 11 show new Multiple probe technique and efficiently predicts die trial
The measurement track (180 ° of rotation) of turntable rotating shaft both sides antenna probes under formula；Figure 12 show the efficient pretest of new Multiple probe technique
The measurement track (being rotated by 360 °) of turntable rotating shaft side antenna probes under pattern；Figure 13 show new Multiple probe technique high accuracy and surveys
The measurement track (being rotated by 360 °) of turntable rotating shaft both sides antenna probes under die trial formula.By contrast as can be seen that the system is relative
Low cost, efficiency high is practical, both can efficiently do low side pretest, and high-end high precision measurement can be realized again.
Above-mentioned this utility model embodiment sequence number is for illustration only, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment
Without the part described in detail, the associated description of other embodiment is may refer to.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of multiplying power is sampled Antenna testing system, it is characterised in that included：
Shielded anechoic chamber internal antenna probe ring support and turntable are arranged at, wherein, the turntable is arranged on antenna probes ring support bottom
Portion, on the antenna probes ring support N number of antenna probes are provided with,
Wherein, setting angle of the N number of antenna probes on the antenna probes ring support is：
From the 1st antenna probes to relatively described antenna probes ring between the two neighboring antenna probes of the N/2+1 antenna probes
The angle of the central angle of support is (360-X)/N, wherein, X is that the two ends of the turntable installation site are visited relative to the antenna
The angle of the central angle of headring support；
The central angle of the relative antenna probes ring support between the N/2+1 antenna probes and the N/2+2 antenna probes
Angle is (360-X)/2N；
The angle of the central angle of the relative antenna probes ring support between the N/2+2 antenna probes and n-th antenna probes
For (360-X)/N.
2. system according to claim 1, it is characterised in that N number of antenna probes are in the antenna probes ring support
On setting angle be replaced by：
From the 1st antenna probes to relatively described antenna probes ring between the two neighboring antenna probes of the N/2 antenna probes
The angle of the central angle of frame is (360-X)/N, wherein, X is the two ends of the turntable installation site relative to the antenna probes
The angle of the central angle of ring support；
The angle of the central angle of the relative antenna probes ring support between the N/2 antenna probes and the N/2+1 antenna probes
Spend for (360-X)/2N；
The angle of the central angle of the relative antenna probes ring support between the N/2+1 antenna probes and n-th antenna probes
For (360-X)/N.
3. system according to claim 1 and 2, it is characterised in that N number of antenna probes are according to clockwise successively
It is arranged on the antenna probes ring support.
4. system according to claim 1 and 2, it is characterised in that the system also includes：
Control rack, by the described N number of day arranged on the antenna probes ring support in interface board and the shielded anechoic chamber
Line probe connection.
5. system according to claim 4, it is characterised in that speed-sensitive switch device is additionally provided with the shielded anechoic chamber,
Wherein, the interface board is connected by the speed-sensitive switch device with N number of antenna probes.
6. system according to claim 4, it is characterised in that the control rack includes：
Radio-frequency (RF) device, is connected by the interface board with the shielded anechoic chamber, for entering to the mulitpath in the shielded anechoic chamber
Row automatically switches.
7. system according to claim 4, it is characterised in that the control rack also includes：
Comprehensive test instrument, is connected by the interface board with N number of antenna probes, for emission measurement signal and receive return letter
Number, and show measurement data.
8. system according to claim 4, it is characterised in that the control rack also includes：
Network Analyzer, is connected by the interface board with the shielded anechoic chamber, for calibrating to the shielded anechoic chamber, and
Measurement calibration data.
9. system according to claim 4, it is characterised in that the control rack also includes：
Turntable controller, is connected by interface board with the turntable, for controlling the turntable rotation.
10. system according to claim 1 and 2, it is characterised in that the value of N is the positive integer more than or equal to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091260.5U CN206096274U (en) | 2016-09-28 | 2016-09-28 | Multiplying power sampling antenna testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091260.5U CN206096274U (en) | 2016-09-28 | 2016-09-28 | Multiplying power sampling antenna testing system |
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| CN206096274U true CN206096274U (en) | 2017-04-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154825A (en) * | 2017-06-26 | 2017-09-12 | 北京中科国技信息系统有限公司 | The OTA test systems and method of NB IoT equipment |
| CN108508393A (en) * | 2018-07-03 | 2018-09-07 | 上海益麦电磁技术有限公司 | A kind of Multi probe Antenna testing system probe calibration system and calibration method |
| CN112083234A (en) * | 2019-06-14 | 2020-12-15 | 中兴通讯股份有限公司 | Array antenna total radiation power measuring method, device and computer storage medium |
| US11187737B2 (en) | 2019-06-06 | 2021-11-30 | Rohde & Schwarz Gmbh & Co. Kg | System and method for calibrating radio frequency test chambers |
| CN115102635A (en) * | 2022-06-14 | 2022-09-23 | 西安交通大学 | Air interface test system and method |
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2016
- 2016-09-28 CN CN201621091260.5U patent/CN206096274U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154825A (en) * | 2017-06-26 | 2017-09-12 | 北京中科国技信息系统有限公司 | The OTA test systems and method of NB IoT equipment |
| CN108508393A (en) * | 2018-07-03 | 2018-09-07 | 上海益麦电磁技术有限公司 | A kind of Multi probe Antenna testing system probe calibration system and calibration method |
| US11187737B2 (en) | 2019-06-06 | 2021-11-30 | Rohde & Schwarz Gmbh & Co. Kg | System and method for calibrating radio frequency test chambers |
| CN112083234A (en) * | 2019-06-14 | 2020-12-15 | 中兴通讯股份有限公司 | Array antenna total radiation power measuring method, device and computer storage medium |
| US11879926B2 (en) | 2019-06-14 | 2024-01-23 | Xi'an Zhongxing New Software Co., Ltd. | Method, device, system and terminal for measuring total radiation power of array antenna and computer storage medium |
| CN112083234B (en) * | 2019-06-14 | 2024-06-11 | 中兴通讯股份有限公司 | Method and device for measuring total radiation power of array antenna and computer storage medium |
| CN115102635A (en) * | 2022-06-14 | 2022-09-23 | 西安交通大学 | Air interface test system and method |
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