CN106161703A - The test system of wireless terminal and be used for its control method - Google Patents
The test system of wireless terminal and be used for its control method Download PDFInfo
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- CN106161703A CN106161703A CN201510168603.7A CN201510168603A CN106161703A CN 106161703 A CN106161703 A CN 106161703A CN 201510168603 A CN201510168603 A CN 201510168603A CN 106161703 A CN106161703 A CN 106161703A
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Abstract
The invention discloses test system and the control method for it of a kind of wireless terminal, this system includes: measured piece, and measured piece is wireless terminal；Reflecting surface, for being totally reflected to the wireless signal of Radioterminal Transmit；Rotating mechanism, is used for fixing measured piece, and drives measured piece to rotate, so that the wireless signal directive reflecting surface successively that wireless terminal is launched to multiple directions；Test antenna, is used for receiving wireless signal；Absorbing screen；Measured piece, the corresponding same ellipsoid of the position relationship of test antenna and reflecting surface, wherein, measured piece and test antenna are separately positioned in two focuses of same ellipsoid, and reflecting surface is arranged on ellipsoid；Absorbing screen is arranged on the straight line between measured piece and test antenna.The test system of the wireless terminal of the embodiment of the present invention, simplifies system architecture, and avoids test operation is repeated several times, thus has that test result repeatability error is little, test result is stable, and testing efficiency is high, low cost and other advantages.
Description
Technical field
The present invention relates to technical field of wireless terminals, particularly to the test system of a kind of wireless terminal and for its control
Method.
Background technology
In the radiance of wireless terminal is tested, need to measure the radiation signal size of multiple directions, multiple radiation direction
Receiving sensitivity size, and obtain total radiant power, global radiation sensitivity by mathematical computations.Due to mobile radio telecommunications
The antenna of terminal is frequently not directional aerial, but has radiation to space all directions, therefore, in the nothing to mobile terminal
When linearly can test, measured piece is placed in a centre of sphere by basic thought exactly, with test multiple positions on sphere for the antenna
Putting the intensity of measurement signal, the laggard row operation of measured value obtaining all positions obtains total radiation intensity.
At present, the testing standard according to CTIA, main measuring method is big circule method: tested mobile terminal is placed in one
The center of three-dimensional turntable, measured piece can rotate around 2 axles with turntable, use a test antenna, measured piece and test days
Line is all disposed within microwave dark room, and measured piece receives towards the tested antenna of direct signal of test antenna, and measured piece is to other
The radiation signal in direction is absorbed by the absorbing material arranging in microwave dark room, according to testing requirement during test, with default angle
Interval rotates measured piece, often turns to a position and just stops and carry out the test of signal strength signal intensity；Can be by adjusting angle of rotation
The measurement time is reduced at degree interval.After the radiation signal of all directions is measured, through data process such as integrations, generate test
Result.
But the measuring speed of this system is relatively slow, again due to require to test distance between antenna and measured piece more than far field away from
From, so that part to be measured is in the plane wave illumination of test antenna, this results in the bulky of measurement system, and manufacturing cost is high,
And the scope of application is little.
Content of the invention
It is contemplated that one of technical problem solving at least to a certain extent in correlation technique.To this end, the one of the present invention
Purpose is to propose the test system of a kind of wireless terminal, simplifies test system structure, reduces system dimension, has test
Result repeatability error is little, test result is stable, and testing efficiency is high, low cost and other advantages.
For reaching above-mentioned purpose, embodiment proposes the test system of a kind of wireless terminal according to a first aspect of the present invention, including by
Surveying part, described measured piece is wireless terminal；Reflecting surface, for being totally reflected to the wireless signal of described Radioterminal Transmit；
Rotating mechanism, is used for fixing described measured piece, and drives described measured piece to rotate, so that described wireless terminal is to multiple directions
Reflecting surface described in the wireless signal directive successively launched；Test antenna, is used for receiving wireless signal；Absorbing screen, is used for absorbing
Radio wave；Described measured piece, the corresponding same ellipsoid of the position relationship of described test antenna and described reflecting surface, its
In, described measured piece and described test antenna are separately positioned in two focuses of same ellipsoid, and described reflecting surface is arranged
On described ellipsoid；Described absorbing screen is arranged on the straight line between described measured piece and described test antenna.
The test system of wireless terminal according to embodiments of the present invention, can arrange reflecting surface according to the testing requirement of measured piece,
And drive wireless terminal to rotate by rotating mechanism, so that the wireless signal of the multiple directions of measured piece is reflected face and converges to survey
Try antenna, and the wireless signal of multiple directions can reach superposition and the power combing of homophase phase place at measurement antenna, from
And the power sum of multiple directions wireless signal can be recorded by rotating measured piece.Relative to the test system in conventional method
For, test speed faster, and avoids test operation is repeated several times, and part to be measured is no longer necessary to be in test antenna
Plane wave illumination, therefore, distance therebetween can be less than far field distance required in legacy test system, thus simplifies
Test system structure, reduces system dimension, has that test result repeatability error is little, test result is stable, testing efficiency
High, low cost and other advantages, is particularly suited for the aspects such as wireless terminal wireless performance certification, research and development, production.
In addition, the test system of wireless terminal according to the above embodiment of the present invention can also have a following additional technical characteristic:
The number of described reflecting surface is 1, and described reflecting surface is to distance and the described reflecting surface of described measured piece to described test
The distance of antenna is equal.
The number of described reflecting surface is 4, described 4 reflectings surface be separately positioned on the upper left of described measured piece, lower-left, upper right,
In orientation, 4, bottom right.
Described system also includes: microwave dark room, described measured piece, tests antenna, and reflecting surface and absorbing screen are arranged on described micro-
In ripple darkroom, wherein, described microwave dark room includes: shielding case body, and is laid on the suction ripple material within described shielding case body
Material.
Described system also includes: tester, is connected with described test antenna, for receive according to described test antenna
Described measured piece is tested by wireless signal.
Described absorbing screen is made up of absorbing material.
Described absorbing material is the sponge after soaking carbon dust.
Described measured piece, tests antenna, and reflecting surface and absorbing screen use the support member of non-metallic material to be arranged on corresponding position
On.
Described 1 reflecting surface is the ring of Guan Bi.
Second aspect present invention embodiment provides the control method of a kind of test system for wireless terminal, wherein, described
The test system of wireless terminal includes: wireless terminal, for receiving the test antenna of wireless signal, sends out described wireless terminal
The reflecting surface that the wireless signal penetrated is totally reflected, for fixing described wireless terminal and driving described wireless terminal to rotate
Rotating mechanism, for the absorbing screen of radio wave absorbing, wherein, described wireless terminal and described test antenna are separately positioned on
In two focuses of same ellipsoid, described reflecting surface is arranged on described ellipsoid, and described absorbing screen is arranged on described nothing
On straight line between line terminal and described test antenna, said method comprising the steps of: S1, described Radioterminal Transmit without
Line signal, wherein, the wireless signal of reflecting surface described in directive is tested antenna by described reflective surface to described；S2, will be anti-
The reflected signal being incident upon described test antenna tests in-phase stacking at antenna described；S3, the result according to in-phase stacking is to institute
The wireless signal stating reflecting surface described in wireless terminal directive is tested；S4, controls described rotating mechanism and rotates to preset direction
Predetermined angle, to update the wireless signal of reflecting surface described in directive, repeats step S1-S4, until completing to default many prescriptions
To the test of wireless signal.
The control method of test system for wireless terminal of the embodiment of the present invention, can set according to the testing requirement of measured piece
Put reflecting surface, and drive wireless terminal to rotate by rotating mechanism, so that the wireless signal of the multiple directions of measured piece is reflected
Face converges to test antenna, and the wireless signal of multiple directions can reach superposition and the work(of homophase phase place at measurement antenna
Rate synthesizes, such that it is able to recorded the power sum of multiple directions wireless signal by rotating measured piece.Relative in conventional method
Test system for, test speed faster, and avoids test operation is repeated several times, and part to be measured is no longer necessary to be in
The plane wave illumination of test antenna, therefore, distance therebetween can be less than far field distance required in legacy test system,
Thus simplify test system structure, reduce system dimension, have that test result repeatability error is little, test result is stable,
Testing efficiency is high, low cost and other advantages, is particularly suited for the aspects such as wireless terminal wireless performance certification, research and development, production.
In addition, the control method for the test system of wireless terminal according to the above embodiment of the present invention can also have as follows
Additional technical characteristic:
The number of described reflecting surface is 1, and described reflecting surface is to distance and the described reflecting surface of described measured piece to described test
The distance of antenna is equal.
The number of described reflecting surface is 4, described 4 reflectings surface be separately positioned on the upper left of described measured piece, lower-left, upper right,
In orientation, 4, bottom right.
Brief description
The present invention above-mentioned and/or that add aspect and advantage will be apparent from from the following description of the accompanying drawings of embodiments
With easy to understand, wherein,
The structural representation of the test system for the wireless terminal according to one embodiment of the invention for the Fig. 1；
The structural representation of the test system for the wireless terminal according to another embodiment of the present invention for the Fig. 2；
Fig. 3 is the schematic diagram according to reference frame in the embodiment of the present invention；
The position view for the reflecting surface according to the embodiment of the present invention of Fig. 4 a-d；
The flow chart of the control method for the test system for wireless terminal according to one embodiment of the invention for the Fig. 5.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, wherein identical from start to finish
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the test system of wireless terminal according to embodiments of the present invention and the test system for wireless terminal are described
The control method of system.
The structural representation of the test system for the wireless terminal according to one embodiment of the invention for the Fig. 1.
As it is shown in figure 1, the test system of wireless terminal according to embodiments of the present invention, comprising: the 2nd, measured piece the 1st, reflecting surface is surveyed
Examination antenna the 3rd, absorbing screen 4 and rotating mechanism 5 (not shown).
Specifically, measured piece 1 is wireless terminal, can launch wireless signal to reflecting surface 2.
Reflecting surface 2 is for being totally reflected to the wireless signal of Radioterminal Transmit.
Rotating mechanism 5 is used for fixing measured piece 1, and drives measured piece 1 to rotate, so that the nothing that wireless terminal is launched to multiple directions
Line signal directive reflecting surface successively.
Test antenna 3 is used for receiving wireless signal.
Wherein, measured piece 1, the corresponding same ellipsoid of the position relationship of test antenna 3 and reflecting surface 2, wherein, measured piece
1 is separately positioned on two focuses a and the b of same ellipsoid with test antenna 3, and reflecting surface 2 is arranged on ellipsoid.Wherein,
Reflecting surface 2 is arranged on ellipsoid and refers to that reflecting surface 2 overlaps with its ellipsoid arranging position.
In the embodiment of the present invention, the wireless signal of Radioterminal Transmit can be electromagnetic wave signal.The thing reflecting according to ellipsoid
Reason principle understands, the electromagnetic wave signal sending from a focus can incide another focus after the reflection of ellipsoid, and
On ellipsoid any point to two focuses of ellipsoid distance and be a fixed value.Therefore, the electromagnetic wave of Radioterminal Transmit
Signal can reflex to after being reflected face 2 test antenna 3, and from multiple electromagnetic wave signals of Radioterminal Transmit through reflecting surface 2
The length of the propagation path inciding test 3 processes of antenna after reflection is identical.For example, as it is shown on figure 3, Fig. 3
The length that 3 electromagnetic wave signals of middle Radioterminal Transmit reflex to test the path of antenna 3 is respectively L1, L2 and L3, and
L1=L2=L3.Thus it is identical that propagation path causes the phase difference of above-mentioned multiple electromagnetic wave signal, test antenna 3 receives
Wireless signal can realize in-phase stacking.
It should be appreciated that and an ellipsoid is not set in systems in reality test.Above-mentioned ellipsoid is virtual ellipsoid,
It is only used for measured piece the 1st, testing antenna 3 and the position relationship of reflecting surface 2 is described, with the position relationship of clear and definite three.
The wireless signal that measured piece 1 is launched to test antenna 3 direction can be transmitted directly to test antenna 3, this part without reflection
It is referred to alternatively as direct signal without the signal of reflection.By direct signal and reflected signal the propagation path of process different,
Then the phase difference that propagation path causes is likely to difference, therefore, direct signal and reflected signal meeting when reaching test antenna 3
Because phase place is different, and the effect of counteracting or partial stack may be produced, thus differ and reach in-phase stacking, work(surely
The purpose of rate synthesis.Therefore, in order to avoid this kind of impact, in an embodiment of the present invention, at measured piece 1 and test antenna 3
Between straight line on be provided with absorbing screen 4, be used for radio wave absorbing, thus, can be absorbed by absorbing screen 4 (or stop)
Measured piece 1 is to the direct projection wireless signal of test antenna 3.
In one embodiment of the invention, absorbing screen 4 can be made up of absorbing material.Wherein, absorbing material can be leaching carbon dust
After sponge.
Owing to measured piece 1 is absorbed to the direct signal of test antenna 3 by absorbing screen 4, do not consider further that straight in an embodiment of the present invention
Penetrate the impact of signal.
In one embodiment of the invention, as in figure 2 it is shown, may also include microwave dark room and tester on the basis of Fig. 1.
Wherein, microwave dark room includes: shielding case body 5 and be laid on absorbing material 6 within shielding case body 5.
The effect of shielding case body 5 is the Electromagnetic Interference of shielding extraneous (such as microwave dark room), and absorbing material can be laid on shielded box
On the inwall of body 5, for being absorbed into the electromagnetic wave being mapped to shielding case body 5 inwall, reduce the reflection within metallic shield case.
In one embodiment of the invention, measured piece 1, tests antenna 3, and reflecting surface 2 and absorbing screen 4 use non-metallic material
Support member be arranged on corresponding position.It is thus possible to avoid because of use metal material support member and reflected radio signal is made
The interference becoming and error.
Tester 7 is connected with test antenna 3, surveys measured piece 1 for the wireless signal receiving according to test antenna 3
Examination.
Specifically, multiple wireless signals that test antenna 3 can be received by tester 7 carry out power combing, and according to power
Synthesis result is tested.
Below in conjunction with the wireless terminal to the embodiment of the present invention for Fig. 3, Fig. 4 a-d test system realize that principle illustrates.
Embodiments of the invention can be according to the position of the number of the measurement demand selection reflecting surface 2 to measured piece 1 and placement.
In one embodiment of the invention, a reflecting surface can be set, it is preferable that this reflecting surface may be configured as measured piece
Distance and reflecting surface equal to the distance of test antenna.Thus controlling rotary mechanism drives measured piece to turn according to preset rules
Dynamic, thus the wireless signal transmission in each direction can be made successively to this reflecting surface, and by reflective surface to testing antenna,
And completed the power combing of the wireless signal to each direction by tester, to complete test.
Certainly, in another embodiment of the present invention, it is possible to multiple reflecting surface is set, for example, 4 reflectings surface can be set.Excellent
Selection of land, 4 reflectings surface be separately positioned on the upper left of measured piece, lower-left, upper right, in orientation, 4, bottom right.Thus, wireless end
End is when turning to each position, and test antenna 3 all can receive by the wireless signal of 4 reflective surface, accordingly, with respect to
For the situation of one reflecting surface is only set, test antenna can be made to receive whole nothing to be measured by the rotation of less number of times
The reflected signal of line signal, rotate the number of times of wireless terminal when can being about reduced to, a reflecting surface is set number of revolutions 1/4,
Thus it is greatly improved testing efficiency.
For convenience, we use the coordinate system that Fig. 3 represents, measured piece is as a example by mobile phone, with the length side of mobile phone
For Z axis, the top of mobile phone is Z axis forward, and X-axis is perpendicular to mobile phone screen, and Y-axis is perpendicular to the plane of X-axis and Z axis place,
Wherein, the pros of X-axis and Y-axis are as shown in Figure 3.
If according to test request, need test (θ=30 °, φ=90 °), (θ=30 °, φ=270 °), (θ=150 °,
φ=90 °) radiation signal in three directions is (wherein, as it is shown on figure 3, θ is for needing the direction of radiation signal and the Z of test
The angle of axle positive direction, φ is the angle of the projection at X/Y plane for the direction of the radiation signal needing test and X-axis positive direction),
So can be (θ=30 °, φ=90 °), (θ=30 °, φ=270 °), (θ=150 °, φ=90 °) three
Corresponding reflecting surface is placed in direction respectively.Wherein, reflecting surface has the shape of the virtual ellipsoid local of position, and puts
Put and fit like a glove with virtual ellipsoid when this position.
Under this configuration, it is positioned at the measured piece 1 (mobile phone) of focus a to (θ=30 °, φ=90 °), (θ=30 °, φ
=270 °), the incoming signal in (θ=150 °, φ=90 °) three directions reaches through set reflective surface and is positioned at
The test antenna 3 of focus b, test antenna 3 receives, and the output of test antenna 3 is exactly the power sum of three direction signals.By
This, tester 7 can obtain measured piece 1 in (θ=30 °, φ=90 °), (θ=30 °, φ=270 °), (θ=150 °,
φ=90 °) three direction power sums.
Certainly, it is possible to a reflecting surface is only set, and by control wireless terminal rotate so that make when rotating every time (θ=30 °,
φ=90 °), (θ=30 °, φ=270 °), one of the radiation signal in (θ=150 °, φ=90 °) three directions
By this reflective surface to test antenna 3, and the power of the reflected signal being received by test antenna 3 output, and by surveying
Test instrument 7 completes the power combing in three directions.
Thus, the number of reflecting surface 2 can be determined according to testing requirement and position is set.For example, Fig. 4 a-d for according to this
The position view of the reflecting surface of inventive embodiments.
If needing, to need to survey the wireless signal of one week all directions for uniform measured piece 1 for radiation intensity
Examination, therefore can arrange a vertical major axis toroidal reflective surface with ellipsoid, i.e. this reflecting surface is the ring of Guan Bi, annular
The position of reflecting surface can need to arrange according to test, for example, can be arranged on as shown in fig. 4 a around the focus at measured piece 1 place, or
Person is arranged between measured piece 1 and test antenna 3 as shown in Figure 4 b.It is thus possible to disposably to each of reflecting surface place one week
The wireless signal in direction is tested, for only arranging the scheme of one or more partially reflecting surface, it is not necessary to rotate quilt
Survey part 1 so that the signal directive reflecting surface launched to all directions of measured piece 1 such that it is able to reduce the testing time, it is achieved that soon
Speed test.
If measured piece 1 needs to test the wireless signal of three or six direction, can exist respectively according to θ and φ of all directions
Corresponding position sets reflecting surface.If needing to test the wireless signal in three directions, then can arrange three as illustrated in fig. 4 c instead
Penetrating face, wherein, three reflectings surface are positioned at around the focus of measured piece 1 place, and are perpendicular to the major axis of ellipsoid, measured piece 1
The plane of place focus intersects with three reflectings surface and three reflectings surface are not relative.If needing to test the wireless communication of six direction
Number, then six reflectings surface can be set as shown in figure 4d, wherein, three reflectings surface are with Fig. 4 c, relative with the other three reflecting surface
And be generally aligned in the same plane, this plane is perpendicular to the major axis of ellipsoid, and the other three reflecting surface is positioned at measured piece 1 place focus week
Enclose.
It can thus be seen that scheme proposed by the invention, according to the requirement that measured piece 1 is tested, by more than 1 sides of measured piece
To radiation signal converge to test antenna 3, the radiation signal of multiple directions test antenna 3s at reach homophase phase place superposition,
Power combing, such that it is able to once record the power sum of multiple directions radiation signal.If used conventional methods, it is necessary to
By measure each direction radiation signal, then measurement result is carried out data process, power be added.
It is pointed out that the direction towards test antenna 3 for the measured piece 1, due to set absorbing screen 4 so that measured piece 1
Cannot be measured towards the wireless signal in direction of test antenna 3.If needing to measure the wireless signal of the direction, then can pass through
Rotating measured piece 1 makes measured piece 1 go to towards reflecting surface 2 towards the wireless signal testing antenna 3 direction, so that this wireless signal
By reflective surface to test antenna 3, and test.
Because the reception of wireless signal, transmitting are reciprocity, in like manner foregoing description is also applied for measured piece 1 and receives test, ability
Territory those skilled in the art are not it will be understood that repeat them here.
The test system of the wireless terminal of the embodiment of the present invention, can arrange reflecting surface according to the testing requirement of measured piece, and lead to
Crossing rotating mechanism drives wireless terminal to rotate, so that the wireless signal of the multiple directions of measured piece is reflected face converges to test days
Line, and the wireless signal of multiple directions can reach superposition and the power combing of homophase phase place at measurement antenna, thus can
To be recorded the power sum of multiple directions wireless signal by rotating measured piece.For the test system in conventional method,
Test speed faster, and avoids test operation is repeated several times, and part to be measured is no longer necessary to be in the plane wave of test antenna
Irradiating, therefore, distance therebetween can be less than far field distance required in legacy test system, thus simplifies test
System architecture, reduces system dimension, has that test result repeatability error is little, test result is stable, and testing efficiency is high, become
The advantages such as this is low, are particularly suited for the aspects such as wireless terminal wireless performance certification, research and development, production.
In order to realize above-described embodiment, the present invention also proposes the control method of a kind of test system for wireless terminal.
The flow chart of the control method for the test system for wireless terminal according to one embodiment of the invention for the Fig. 5.
Wherein, the test system of this wireless terminal includes wireless terminal, for receiving the test antenna of wireless signal, to wireless
The reflecting surface that the wireless signal of terminal transmission is totally reflected, be used for fixed radio terminal and drive that wireless terminal rotates turn
Motivation structure, absorbing screen, wherein, wireless terminal and test antenna are separately positioned in two focuses of same ellipsoid, instead
The face of penetrating is arranged on ellipsoid, and absorbing screen is arranged on the straight line between wireless terminal and test antenna.
As it is shown in figure 5, the control method of the test system for wireless terminal according to embodiments of the present invention, comprise the following steps.
S1, Radioterminal Transmit wireless signal, wherein, the wireless signal of directive reflecting surface by reflective surface to testing antenna.
Embodiments of the invention can be according to the position of the number of the measurement demand selection reflecting surface 2 to measured piece 1 and placement.
In one embodiment of the invention, a reflecting surface can be set, it is preferable that this reflecting surface may be configured as measured piece
Distance and reflecting surface equal to the distance of test antenna.Thus controlling rotary mechanism drives measured piece to turn according to preset rules
Dynamic, thus the wireless signal transmission in each direction can be made successively to this reflecting surface, and by reflective surface to testing antenna,
And completed the power combing of the wireless signal to each direction by tester, to complete test.
Certainly, in another embodiment of the present invention, it is possible to multiple reflecting surface is set, for example, 4 reflectings surface can be set.Excellent
Selection of land, 4 reflectings surface be separately positioned on the upper left of measured piece, lower-left, upper right, in orientation, 4, bottom right.Thus, wireless end
End is when turning to each position, and test antenna 3 all can receive by the wireless signal of 4 reflective surface, accordingly, with respect to
For the situation of one reflecting surface is only set, test antenna can be made to receive whole nothing to be measured by the rotation of less number of times
The reflected signal of line signal, rotate the number of times of wireless terminal when can being about reduced to, a reflecting surface is set number of revolutions 1/4,
Thus it is greatly improved testing efficiency.
S2, tests the reflected signal of antenna in-phase stacking at test antenna by reflexing to.
S3, tests according to the wireless signal to wireless terminal directive reflecting surface for the in-phase stacking result.
Specifically, the in-phase stacking result of reflected signal that can be received according to test antenna by tester is to wireless terminal
Test.
S4, it may be judged whether complete to default many prescriptions to the test of wireless signal.
If it is not, then perform S5, if it is, terminate.
S5, control rotating mechanism rotates predetermined angle to preset direction, updating the wireless signal of directive reflecting surface, and repeats
S1-S4。
In the embodiment of the present invention, the wireless signal of Radioterminal Transmit can be electromagnetic wave signal.The thing reflecting according to ellipsoid
Reason principle understands, the electromagnetic wave signal sending from a focus can incide another focus after the reflection of ellipsoid, and
On ellipsoid any point to two focuses of ellipsoid distance and be a fixed value.Therefore, the electromagnetic wave of Radioterminal Transmit
Signal can reflex to after being reflected face 2 test antenna 3, and from multiple electromagnetic wave signals of Radioterminal Transmit through reflecting surface 2
The length of the propagation path inciding test 3 processes of antenna after reflection is identical.For example, as it is shown on figure 3, Fig. 3
The length that 3 electromagnetic wave signals of middle Radioterminal Transmit reflex to test the path of antenna is respectively L1, L2 and L3, and
L1=L2=L3.Thus it is identical that propagation path causes the phase difference of above-mentioned multiple electromagnetic wave signal, test antenna 3 receives
Wireless signal can realize in-phase stacking.
It should be appreciated that and an ellipsoid is not set in systems in reality test.Above-mentioned ellipsoid is virtual ellipsoid,
It is only used for being described the position relationship of measured piece, test antenna and reflecting surface, with the position relationship of clear and definite three.
Measured piece can be transmitted directly to test antenna without reflection to the wireless signal that test antenna direction is launched, and this part is not
Signal through reflection is referred to alternatively as direct signal.By direct signal and reflected signal the propagation path of process different, then
Being likely to difference by the phase difference that propagation path causes, therefore, direct signal and reflected signal can be because of when reaching test antenna
For phase place is different, and the effect of counteracting or partial stack may be produced, thus differ and reach in-phase stacking, power surely
The purpose of synthesis.Therefore, in order to avoid this kind of impact, in an embodiment of the present invention, measured piece 1 and test antenna 3 it
Between straight line on be provided with absorbing screen, thus, (or stop) measured piece can be absorbed to the direct projection testing antenna by absorbing screen
Signal.
In one embodiment of the invention, absorbing screen can be made up of absorbing material.Wherein, absorbing material can be leaching carbon dust
After sponge.
Owing to measured piece is absorbed to the direct signal of test antenna by absorbing screen, do not consider further that direct projection in an embodiment of the present invention
The impact of signal.
In one embodiment of the invention, measured piece, tests antenna, and reflecting surface and absorbing screen use propping up of non-metallic material
Support member is arranged on corresponding position.It is thus possible to avoid because of use metal material support member and what reflected radio signal caused
Interference and error.
Specifically, the test system of the wireless terminal of the embodiment of the present invention realize that principle can refer to implement shown in Fig. 3, Fig. 4 a-d
Example, does not repeats them here.
The control method of test system for wireless terminal of the embodiment of the present invention, can set according to the testing requirement of measured piece
Put reflecting surface, and drive wireless terminal to rotate by rotating mechanism, so that the wireless signal of the multiple directions of measured piece is reflected
Face converges to test antenna, and the wireless signal of multiple directions can reach superposition and the work(of homophase phase place at measurement antenna
Rate synthesizes, such that it is able to recorded the power sum of multiple directions wireless signal by rotating measured piece.Relative in conventional method
Test system for, test speed faster, and avoids test operation is repeated several times, and part to be measured is no longer necessary to be in
The plane wave illumination of test antenna, therefore, distance therebetween can be less than far field distance required in legacy test system,
Thus simplify test system structure, reduce system dimension, have that test result repeatability error is little, test result is stable,
Testing efficiency is high, low cost and other advantages, is particularly suited for the aspects such as wireless terminal wireless performance certification, research and development, production.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ",
The orientation of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " or position relationship are for based on shown in the drawings
Orientation or position relationship, be for only for ease of description the present invention and simplify describe, rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
Person implies the quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two,
Three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", the art such as " fixing "
Language should be interpreted broadly, for example, it may be fixing connect, it is also possible to be to removably connect or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part or the interaction relationship of two elements, limit unless otherwise clear and definite.Ordinary skill for this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
One and second feature directly contact, or the first and second features pass through intermediary mediate contact.And, fisrt feature is
Two features " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or are merely representative of first
Characteristic level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature
It immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specific example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiment described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, change, replace and modification.
Claims (12)
1. the test system of a wireless terminal, it is characterised in that include:
Measured piece, described measured piece is wireless terminal；
Reflecting surface, for being totally reflected to the wireless signal of described Radioterminal Transmit；
Rotating mechanism, is used for fixing described measured piece, and drives described measured piece to rotate, so that described wireless terminal is to multiple
Reflecting surface described in the wireless signal directive successively that direction is launched；
Test antenna, is used for receiving wireless signal；
Absorbing screen, is used for radio wave absorbing；
Described measured piece, the corresponding same ellipsoid of the position relationship of described test antenna and described reflecting surface, wherein, institute
Stating measured piece and described test antenna being separately positioned in two focuses of same ellipsoid, described reflecting surface is arranged on described
On ellipsoid；
Described absorbing screen is arranged on the straight line between described measured piece and described test antenna.
2. system according to claim 1, it is characterised in that the number of described reflecting surface is 1, and described reflecting surface
Equal to the distance of described test antenna with described reflecting surface to the distance of described measured piece.
3. system according to claim 1, it is characterised in that the number of described reflecting surface is 4, described 4 reflections
Face be separately positioned on the upper left of described measured piece, lower-left, upper right, in orientation, 4, bottom right.
4. system according to claim 1, it is characterised in that also include:
Microwave dark room, described measured piece, test antenna, reflecting surface and absorbing screen are arranged in described microwave dark room, wherein,
Described microwave dark room includes:
Shielding case body, and it is laid on the absorbing material within described shielding case body.
5. system according to claim 1, it is characterised in that also include:
Tester, is connected with described test antenna, for according to the described wireless signal that receives of antenna of testing to described quilt
Survey part to test.
6. system according to claim 1, it is characterised in that described absorbing screen is made up of absorbing material.
7. system according to claim 6, it is characterised in that described absorbing material is the sponge after soaking carbon dust.
8. system according to claim 1, it is characterised in that described measured piece, tests antenna, reflecting surface and absorption
Screen uses the support member of non-metallic material to be arranged on corresponding position.
9. system according to claim 2, it is characterised in that described 1 reflecting surface is the ring of Guan Bi.
10. the control method for the test system of wireless terminal, it is characterised in that the test system of described wireless terminal
System includes: wireless terminal, for receiving the test antenna of wireless signal, carries out the wireless signal of described Radioterminal Transmit
The reflecting surface of total reflection, for fixing described wireless terminal the rotating mechanism driving described wireless terminal to rotate, is used for inhaling
Receiving the absorbing screen of radio wave, wherein, described wireless terminal and described test antenna are separately positioned on the two of same ellipsoid
In individual focus, described reflecting surface is arranged on described ellipsoid, and described absorbing screen is arranged on described wireless terminal and described test
On straight line between antenna, said method comprising the steps of:
S1, described Radioterminal Transmit wireless signal, wherein, the wireless signal of reflecting surface described in directive is anti-by described reflecting surface
It is incident upon described test antenna；
The reflected signal reflexing to described test antenna is tested in-phase stacking at antenna described by S2；
S3, the wireless signal of reflecting surface described in described wireless terminal directive of the result according to in-phase stacking is tested；
S4, controls described rotating mechanism and rotates predetermined angle to preset direction, to update the wireless signal of reflecting surface described in directive,
Repeat step S1-S4, until complete to default many prescriptions to the test of wireless signal.
11. methods according to claim 10, it is characterised in that the number of described reflecting surface is 1, and described reflection
Face is equal to the distance of described test antenna with described reflecting surface to the distance of described measured piece.
12. methods according to claim 11, it is characterised in that the number of described reflecting surface is 4, described 4 anti-
The face of penetrating be separately positioned on the upper left of described measured piece, lower-left, upper right, in orientation, 4, bottom right.
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| CN201510168603.7A CN106161703B (en) | 2015-04-10 | 2015-04-10 | The test macro of wireless terminal and control method for it |
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| CN201510168603.7A CN106161703B (en) | 2015-04-10 | 2015-04-10 | The test macro of wireless terminal and control method for it |
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| CN106161703B CN106161703B (en) | 2019-11-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872801A (en) * | 2017-04-02 | 2017-06-20 | 深圳市通用测试系统有限公司 | A kind of near field test system |
| CN108833026A (en) * | 2018-05-02 | 2018-11-16 | 四川斐讯信息技术有限公司 | A kind of method, apparatus and system of test equipment wireless signal strength |
| CN111212177A (en) * | 2018-11-22 | 2020-05-29 | 深圳市通用测试系统有限公司 | Test system of wireless terminal |
| CN112867045A (en) * | 2021-01-15 | 2021-05-28 | 中国信息通信研究院 | Multi-compact range measuring system and method |
| CN115276836A (en) * | 2022-07-18 | 2022-11-01 | 深圳市通用测试系统有限公司 | Compact range testing system |
| CN116721608A (en) * | 2023-06-13 | 2023-09-08 | 云谷（固安）科技有限公司 | Reflection surface assembly, display panel and wireless communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931798A (en) * | 1987-06-03 | 1990-06-05 | Tokin Corporation | Electromagnetic anechoic chamber with an inner electromagnetic wave reflection surface and an electromagnetic wave absorption small ball disposed in the chamber |
| CN101802625A (en) * | 2007-09-28 | 2010-08-11 | 安立股份有限公司 | Radiated power measuring method, coupler for radiate power measurement, and radiated power measuring device |
| CN103237108A (en) * | 2013-05-13 | 2013-08-07 | 百度在线网络技术（北京）有限公司 | Test method and test terminal for mobile terminal |
-
2015
- 2015-04-10 CN CN201510168603.7A patent/CN106161703B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4931798A (en) * | 1987-06-03 | 1990-06-05 | Tokin Corporation | Electromagnetic anechoic chamber with an inner electromagnetic wave reflection surface and an electromagnetic wave absorption small ball disposed in the chamber |
| CN101802625A (en) * | 2007-09-28 | 2010-08-11 | 安立股份有限公司 | Radiated power measuring method, coupler for radiate power measurement, and radiated power measuring device |
| CN103237108A (en) * | 2013-05-13 | 2013-08-07 | 百度在线网络技术（北京）有限公司 | Test method and test terminal for mobile terminal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872801A (en) * | 2017-04-02 | 2017-06-20 | 深圳市通用测试系统有限公司 | A kind of near field test system |
| CN106872801B (en) * | 2017-04-02 | 2024-04-30 | 深圳市通用测试系统有限公司 | Near field test system |
| CN108833026A (en) * | 2018-05-02 | 2018-11-16 | 四川斐讯信息技术有限公司 | A kind of method, apparatus and system of test equipment wireless signal strength |
| CN111212177A (en) * | 2018-11-22 | 2020-05-29 | 深圳市通用测试系统有限公司 | Test system of wireless terminal |
| CN111212177B (en) * | 2018-11-22 | 2021-06-25 | 深圳市通用测试系统有限公司 | Test system of wireless terminal |
| CN112867045A (en) * | 2021-01-15 | 2021-05-28 | 中国信息通信研究院 | Multi-compact range measuring system and method |
| CN115276836A (en) * | 2022-07-18 | 2022-11-01 | 深圳市通用测试系统有限公司 | Compact range testing system |
| CN116721608A (en) * | 2023-06-13 | 2023-09-08 | 云谷（固安）科技有限公司 | Reflection surface assembly, display panel and wireless communication device |
| CN116721608B (en) * | 2023-06-13 | 2024-03-08 | 云谷（固安）科技有限公司 | Reflection surface assembly, display panel and wireless communication device |
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| CN106161703B (en) | 2019-11-22 |
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