CN206876775U

CN206876775U - Antenna measurement system

Info

Publication number: CN206876775U
Application number: CN201720646900.2U
Authority: CN
Inventors: 陈奕铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-03
Filing date: 2017-06-03
Publication date: 2018-01-12
Anticipated expiration: 2027-06-03
Also published as: WO2018218794A1

Abstract

The utility model discloses a kind of antenna measurement system, including：For placing the plummer of measured object；The annular element of probe network is laid with, the measured object is placed at the geometric center of the probe network；And the drive device for driving the plummer or the annular element to be rotated around a rotating shaft at least one week, in the rotating shaft, the probe network includes the geometric center：Some probes being arranged on the annular element, the deflection angle of relatively described geometric center is the integral multiple of a references angle between each probe and the rotating shaft, and the references angle is：The deflection angle of relatively described geometric center between a probe adjacent with the rotating shaft and the rotating shaft.The utility model has the characteristics of cost is low, space is small.

Description

Antenna measurement system

Technical field

Antenna measurement technology is the utility model is related to, it is related to a kind of antenna measurement system.

Background technology

Antenna and the fast-developing of correlation technique propose to antenna measurement technology in precision, efficiency, test function etc. Requirements at the higher level.The measurement of antenna parameters has a variety of methods, and at present, main method includes three major types：The far field of antenna Measurement, the near field measurement for tightening field measurement, antenna of antenna.Antenna damnification is broadly divided into three major classes, planar near-field, post Face near field and sphere near field.Wherein, sphere near field is currently the only feasible full-scale antenna 3 D stereo radiance test Method, technical difficulty also highest.

Existing Multi probe antenna measurement system is using equally distributed design of popping one's head in, 180 ° of selection relative with supporting part of popping one's head in The data on a sphere can be drawn.However, using this detection mode, it is necessary to probe quantity it is relatively more, be unfavorable for Cost control of the enterprise to product.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of antenna measurement system, have The characteristics of cost is low, space is small.

To achieve the above object, the utility model provides following technical scheme：

A kind of antenna measurement system, including：

For placing the plummer of measured object；

The annular element of probe network is laid with, the measured object is placed at the geometric center of the probe network；With And

The plummer or the annular element are driven in the drive device of rotating shaft rotation at least one week, the geometry The heart in the rotating shaft,

The probe network includes：Some probes being arranged on the annular element, each probe and the rotating shaft Between relatively described geometric center deflection angle be a references angle integral multiple, the references angle is：With the rotating shaft The deflection angle of relatively described geometric center between an adjacent probe and the rotating shaft.

Pass through above technical scheme：Only need to control drive device to drive plummer or annular element to rotate 360 degree, i.e., A complete sphere near field measurement can be completed.

Preferably, 180 ° are equal to after the references angle is multiplied with the quantity popped one's head in.

Preferably, the quantity of the probe is 12,24,36,48 or 60.

Preferably, the drive device is one of them in following several turntables：Single-degree-of-freedom turntable, two degrees of freedom turn Platform, Three-degree of Freedom Rotational Platform, four-degree-of-freedom turntable, five degree of freedom turntable, Six Degree-of-Freedom Parallel Robot.

Preferably, the plummer is located near or at the geometric center.

Pass through above technical scheme：Enable to so that measurement effect is more accurate.

Preferably, it is provided with the inside of the annular element and inhales ripple cotton, some pieces of suction ripple cottons is overall by the annular element Parcel；The suction ripple cotton is provided with the perforate stretched out for probe.

Pass through above technical scheme：After there is provided ripple cotton is inhaled, influence of the interference signal to probe can be reduced.

Compared with prior art, the utility model has the advantages that：

1st, half probe can be reduced under identical size using asymmetric probe designs, relatively conventional symmetrical probe designs Use, greatly reduce system cost.

2nd, probe distribution density can be reduced, further can reduce antenna measurement system in the case of identical sampling density Diameter, greatly save place scope.

Brief description of the drawings

Fig. 1 is the front view of antenna measurement system in embodiment 1；

Fig. 2 is the measuring principle figure of antenna measurement system in embodiment 1；

Fig. 3 is the front view of antenna measurement system in embodiment 2；

Fig. 4 is the side view of antenna measurement system in embodiment 3.

Reference：1st, support；2nd, annular element；3rd, pop one's head in；4th, plummer；5th, drive device；6th, column；7th, support Frame；8th, geometric center；9th, rotating shaft；10th, sphere sampled contour.

Embodiment

With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model The mode of applying is not limited only to this.

Embodiment 1：

Reference picture 1, a kind of antenna measurement system, including support 1, be vertically arranged on support 1 annular element 2, be located at The plummer 4 and drive device 5 of the inner side of annular element 2；In the present embodiment, the drive device 5 is used to drive the plummer 4 Rotate.

The network of probe 3 being made up of some probes 3 is laid with the madial wall of the annular element 2.Each probe 3 is directed to The center of annular element 2, the center are the geometric center 8 of 3 networks of probe.

Ripple cotton is inhaled in addition, being enclosed with the inner side of annular element 2（Do not represented in accompanying drawing）, inhale ripple cotton annular element 2 is whole Body wraps up, and the suction ripple cotton can be U-shaped, taper or other shapes, and the present embodiment is not construed as limiting.Suction ripple cotton has to be stretched for probe 3 The perforate gone out, and then probe 3 can stretch out from corresponding perforate.

In the present embodiment, after the plummer 4 uses the formula structure of column 6, its bottom to pass through the bottom of annular element 2, installation In in drive device 5, the top of plummer 4 is located near or at above-mentioned geometric center 8 so that measured object is placed on plummer 4 When, it can also be located near or at above-mentioned geometric center 8.

In addition, the drive device 5 uses turntable, and can be one of them in following several turntables：Single-degree-of-freedom Turntable, two-degree-freedom turntable, Three-degree of Freedom Rotational Platform, four-degree-of-freedom turntable, five degree of freedom turntable, Six Degree-of-Freedom Parallel Robot.It is and then logical Control drive device 5 is crossed, plummer 4 can be driven along a rotating shaft 9（Virtually）Rotation, and above-mentioned geometric center 8 is located at this turn On axle 9.

In the present embodiment, 3 regularity of distribution on annular element 2 of probe is as follows：It is relatively several between each probe 3 and rotating shaft 9 The deflection angle at what center 8 is the integral multiple of a references angle A, and references angle A is：A probe 3 adjacent with rotating shaft 9 is with turning With respect to the deflection angle of geometric center 8 between axle 9.At specific arrangement probe 3, a kind of arrangement is：Can be by probe 3 all It is distributed in the side of rotating shaft 9；Another arrangement is：Part probe 3 is in the left side of rotating shaft 9, another part on the right side of rotating shaft 9 Side；Another arrangement is：Deflection angle of relative geometric center 8 is 0 ° between one of probe 3 and rotating shaft 9, i.e., with Rotating shaft 9 is located along the same line, and remaining probe 3 is arranged according to above two mode.

In addition, in order to obtain a uniform spherical surface measurement point, in the present embodiment, 3 quantity of popping one's head in needs to meet Following condition：References angle A is equal to 180 ° after being multiplied with the quantity of probe 3.And pop one's head in 3 quantity can be 12,24,36, 48 or 60 etc..

Therefore, as shown in Fig. 2 after plummer 4 rotates one week, the sample path of each probe 3 can be combined into one Uniform sphere sampled contour 10.

Embodiment 2：

The present embodiment is substantially the same manner as Example 1, and difference is：The drive device 5 is used for direct driving annular Part 2 rotates around the rotating shaft 9；Referring in particular to Fig. 3, as a kind of example, drive device 5 uses single-degree-of-freedom turntable, ring part Part 2 is arranged on single-degree-of-freedom turntable by support 1, and then by controlling single-degree-of-freedom turntable to rotate, equally being capable of drive ring Shape part 2 rotates one week (plummer 4 is motionless) around the rotating shaft 9, reaches measurement effect same as Example 1.

Embodiment 3：

The present embodiment is substantially the same manner as Example 1, and difference is, plummer 4 along not use the formula structure of column 6, But the mounting means of lateral arrangement is used, it is specific as follows：

As shown in figure 4, drive device 5 is installed on column 6, being horizontally disposed with column 6 has support frame 7, and plummer 4 can turn The end position of the support frame 7 is installed on dynamicly；And then in the present embodiment, the drive device 5 can use Chain conveyer, same The modes such as V belt translation are walked, driving plummer 4 rotates.

Claims

A kind of 1. antenna measurement system, it is characterised in that including：

For placing the plummer (4) of measured object；

The annular element (2) of probe (3) network is laid with, the measured object is placed in the geometric center of described probe (3) network (8) place；And

The drive device (5) for driving the plummer (4) or the annular element (2) to be rotated around a rotating shaft (9) at least one week, institute Geometric center (8) is stated in the rotating shaft (9),

Described probe (3) network includes：Some probes (3) being arranged on the annular element (2), it is each it is described probe (3) with The deflection angle of relatively described geometric center (8) is the integral multiple of a references angle between the rotating shaft (9), the references angle It is：The deflection of relatively described geometric center (8) between a probe (3) adjacent with the rotating shaft (9) and the rotating shaft (9) Angle.
2. antenna measurement system according to claim 1, it is characterised in that the quantity of the references angle and probe (3) It is equal to 180 ° after multiplication.
3. antenna measurement system according to claim 1 or 2, it is characterised in that the quantity of the probe (3) is 12,24, 36th, 48 or 60.
4. antenna measurement system according to claim 1, it is characterised in that the drive device (5) is following several turns One of them in platform：Single-degree-of-freedom turntable, two-degree-freedom turntable, Three-degree of Freedom Rotational Platform, four-degree-of-freedom turntable, five degree of freedom turn Platform, Six Degree-of-Freedom Parallel Robot.
5. antenna measurement system according to claim 1, it is characterised in that the plummer (4) is located near or at described Geometric center (8).
6. antenna measurement system according to claim 1, it is characterised in that be provided with the inside of the annular element (2) and inhale ripple Cotton, some pieces of suction ripple cottons integrally wrap up the annular element (2)；The suction ripple cotton is provided with what is stretched out for probe (3) Perforate.