KR102634481B1 - System for fast antenna testing in multi-band and method thereof - Google Patents

Abstract

A multi-band antenna high-speed measurement system and method are disclosed. The multi-band antenna high-speed measurement system includes a first arc and a second arc that intersect each other at a predetermined intersection point, an arc structure such that a sphere space is formed inside the first arc and the second arc, and the sphere space. A fixing part for fixing the target antenna that is to be tested on the fixed part, a positioner for controlling the rotation of the target antenna by controlling the fixing part, and a predetermined interval on the sphere space side of the first arc to receive the signal of the first band. A first probe set including a plurality of first probes spaced apart from each other, and a plurality of second probes spaced apart from each other at predetermined intervals on the sphere space side of the second arc to receive signals of a second band. It includes a second probe set including:

Description

{System for fast antenna testing in multi-band and method thereof}

The present invention relates to a multi-band antenna high-speed measurement system and method.

More specifically, it relates to a system and method that can measure antenna performance in multiple bands at high speed.

As the demand for radio resources increases rapidly, such as increased wireless traffic and large-capacity data transmission, the need for technology that can measure antenna performance at high speed in a short period of time is increasing.

In particular, in recent communication environments such as 5G, new technology antennas have the characteristic of performing multiple beamforming based on multiple antenna elements.

However, for such antenna measurement (testing), measuring the signal radiation performance of the antenna while moving one or a few probes, as in the existing method, inevitably takes a considerable amount of time and resources.

1 is a diagram for explaining an example of a conventional antenna measurement method.

Figure 1 illustrates the antenna performance measurement method of the NFTF (Near Field to Far Field Transform) method, which has recently been widely used for antenna measurement in high frequency bands.

As shown in Figure 1, NFTF antenna measurement methods exist in planar, cylindrical, and spherical performance measurement methods.

This method can be selectively used depending on the antenna's directivity or radiation pattern.

The conventional method generally moves the probe for receiving the signal output from the antenna under test (AUT) to each predetermined grid point, receives the signal output from the antenna under test (AUT), analyzes it, and determines the radiation performance (radiation pattern). , signal strength, etc.) are being used.

In addition, in the case of a cylindrical or sphere-type measurement method, measurements are performed by rotating the antenna under test (AUT) along with the movement of the probe. If necessary, in the case of a spherical measurement method, a plurality of devices are applied to the arc corresponding to one outer circumference of the sphere. By installing a probe, signal reception is performed for each grid point corresponding to the entire sphere.

However, this conventional method alone inevitably takes a considerable amount of time and resources as described above, and only antennas corresponding to one frequency band can be tested, and in order to perform tests on antennas in other bands, other bands must be measured. There is the problem of having to perform tests in separate measurement systems.

Korean Patent Publication No. 1020200093759 “Method for measuring antenna performance and chamber for the same”

The present invention is an invention made to solve the problems of the prior art, and provides a multi-band antenna high-speed measurement system and method capable of high-speed measurement of antenna performance for multiple frequency bands.

The multi-band antenna high-speed measurement system according to one aspect of the present invention includes a first arc and a second arc that intersect each other at a predetermined intersection point, and a sphere space is formed inside the first arc and the second arc. An arc structure, a fixing part for fixing a target antenna to be tested in the sphere space, a positioner for controlling the rotation of the target antenna by controlling the fixing part, and the first arc for receiving a signal of a first band. A first probe set including a plurality of first probes arranged at predetermined intervals on the sphere space side, and disposed at predetermined intervals on the sphere space side of the second arc to receive signals of a second band. and a second probe set including a plurality of second probes.

The multi-band antenna high-speed measurement system includes a band selection switch for selecting either the first probe set or the second probe set, and one of the probes included in the probe set selected by the band selection switch. a probe selection switch for controlling the band selection switch and the probe selection switch, and receiving signal data corresponding to the input signal from the selected probe through a signal processing device to derive the radiation performance of the target antenna. More may be included.

The control unit may control the positioner to perform a test while rotating the target antenna at a certain angle in the elevation direction and then rotating it in the azimuth direction.

The arc structure may be formed at the intersection point so that a first probe corresponding to the first band or a second probe corresponding to the second band can be selectively replaced.

Broadband probes corresponding to both the first band and the second band may be disposed at the intersection point.

The first probes and the second probes may be disposed to be spaced apart from each other at a predetermined interval, but the probe may not be disposed at the intersection point.

The fixing unit may be characterized in that the direction of the target antenna is arranged in a direction perpendicular to the intersection point.

The multi-band antenna high-speed measurement system is installed on the outside of the arc structure and further includes at least one phase reference pro unit that receives a signal generated by the target antenna and transmits it to a signal processing device, and the control unit receives the signal generated by the target antenna and transmits it to a signal processing device. The phase information of the signal received from the probe can be used as a reference phase.

The multi-band antenna high-speed measurement system includes a plurality of phase reference probes, and the control unit may utilize the phase of a signal with higher power among signals received by each of the plurality of phase reference probes as a reference phase.

The control unit may control at least one phase reference probe to perform the same rotation as the rotation of the target antenna.

A multi-band antenna high-speed measurement method for implementing the technical idea of the present invention is a multi-band antenna high-speed measurement system that includes a first arc and a second arc that intersect each other at a predetermined intersection point, and the first arc and the second arc intersect each other at a predetermined intersection point. In order to test the target antenna disposed in the sphere space formed inside the arc, selecting either the first arc or the second arc, included in the probe set selected by the multi-band antenna high-speed measurement system It may include sequentially selecting probes and receiving an input signal transmitted from the selected probe, and measuring performance of the target antenna based on the input signal received by the multi-band antenna high-speed measurement system.

The above methods can be implemented by a computer program stored in a computer-readable recording medium.

According to an embodiment of the present invention, a plurality of arcs are installed to be suitable for measuring the performance of a specific signal band, and a plurality of probes are placed on each of the plurality of arcs to connect to multiple band antennas or broadband antennas. This has the effect of enabling high-speed performance measurement (testing).

In order to more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing is provided.
1 is a diagram for explaining a conventional antenna measurement method.
Figure 2 is a diagram showing the schematic structure of a multi-band antenna high-speed measurement system according to an embodiment of the present invention.
Figure 3 is a diagram illustrating the configuration of a multi-band antenna high-speed measurement system according to an embodiment of the present invention.
Figure 4 is a diagram for explaining an arc structure according to an embodiment of the present invention.
Figure 5 is a diagram for explaining an example of an intersection point of an arc structure according to an embodiment of the present invention.
Figure 6 is a diagram for explaining an example of a fixing unit according to an embodiment of the present invention.
7 is a diagram for explaining this example of a positioner according to an embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more other It should be understood that this does not exclude in advance the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, in this specification, when one component 'transmits' data to another component, the component may transmit the data directly to the other component, or through at least one other component. This means that the data can be transmitted to the other components. Conversely, when one component 'directly transmits' data to another component, it means that the data is transmitted from the component to the other component without going through the other component.

Hereinafter, the present invention will be described in detail focusing on embodiments of the present invention with reference to the attached drawings. The same reference numerals in each drawing indicate the same member.

Figure 2 is a diagram showing the schematic structure of a multi-band antenna high-speed measurement system according to an embodiment of the present invention.

Referring to FIG. 2, in order to implement a high-speed antenna measurement method in multiple bands according to the technical idea of the present invention, a multi-band antenna high-speed measurement system 1000 may be provided.

The multi-band antenna high-speed measurement system 1000 can be installed in a predetermined chamber, and as shown in FIG. 2, a number of radio wave absorbers (e.g., pyramid-shaped radio wave absorbers) are installed on the inner wall of the chamber to form a test target antenna ( It is possible to prevent signals emitted by AUT, 10) from being reflected within the chamber.

The multi-band antenna high-speed measurement system 1000 includes an arc structure 100.

The arc structure 100 may form a plurality of arcs, and a sphere space may be formed on the inside by the plurality of arcs.

In one embodiment of the present invention, for convenience of explanation, the case where the arc structure 100 includes two arcs is exemplarily described, but the technical idea of the present invention can be easily applied even when it has three or more arcs. An average expert in the technical field of the present invention can easily infer that this is possible. Therefore, the scope of the present invention is not limited to this embodiment.

Likewise, a radio wave absorber may be installed on the outer wall of the arc structure 100 to suppress reflection of the signal output from the test target antenna 10.

Each of the arcs provided in the arc structure 100 may correspond to the outer periphery of the sphere space formed inside the arc structure 100, and each of the arcs may be provided to correspond to one frequency band.

The fact that each of the arcs corresponds to a certain frequency band may mean that one arc can be used for testing a specific frequency band, and the other arc can be used for testing a different frequency band.

To this end, a plurality of probes 400 and 500 designed to effectively receive signals of corresponding frequency bands may be disposed in each arc.

Figure 4 is a diagram for explaining an arc structure according to an embodiment of the present invention. Referring to Figures 3 and 4, the arc structure 100 includes at least a first arc 110 and a second arc 120. can do.

In an embodiment of the present invention, the arc structure 100 includes two arcs, but as described above, the scope of the present invention is not limited thereto.

The first arc 110 and the second arc 120 may be formed to intersect at a predetermined intersection point 130.

Additionally, a supporter for supporting the first arc 100 and the second arc 120 may be provided as shown in FIG. 3 .

A first probe set including a plurality of first probes 400 may be disposed inside the first arc.

Additionally, a second probe set including a plurality of second probes 500 may be disposed inside the second arc.

A radio wave absorber may be attached to the outside of the arc structure 100 as shown in FIG. 4 to have a shape as shown in FIG. 2.

In each arc, positions where probes can be placed may be predetermined. At each position, the front side that receives the signal is placed toward the sphere space, and a probe coupling structure may be formed outside the sphere space so that a signal line through which signals input to the probe can be transmitted can be installed.

The coupling structure may have various embodiments, such as a probe into which a probe can be inserted, or a method where it can be mounted or fastened in a predetermined manner.

The position of the probe coupling structure may be fixed. Additionally, the position where the probe is coupled in each of the arcs 110 and 120 may be determined to have a fixed, predetermined interval.

According to another embodiment, the binding positions of the probes may be implemented to be variable. For example, a predetermined groove is formed inside each of the arcs 110 and 120 in the longitudinal direction of the arc, and a portion of each probe is fastened to the groove and slides along the groove, so as to be coupled to the arc. may be implemented to be variably selected. Alternatively, the positions of the probes may be moved in various other ways.

Meanwhile, the test target antenna 10 is located inside the sphere space formed by the arc structure 100, and can radiate signals under the control of the multi-band antenna high-speed measurement system 1000 or spontaneously.

The signal radiated by the test target antenna 10 is received by probes disposed in each of the arcs, and the received input signal can be transmitted to the control unit through a signal processing device as will be described later.

Then, a test of the antenna in which radiation performance (radiation pattern and signal strength, etc.) is measured can be performed by the control unit.

The test target antenna 10 is fixed by a predetermined fixing part 200, and the fixing part 200 can be rotated by the positioner 300.

It is sufficient for the fixing part 200 to be implemented so that it can be fixed by mounting, attaching, or fastening the antenna to be tested 10, and the fixing part 200 also preferably has a radio wave absorber attached to the outside or has reflection characteristics of radio waves. This can be implemented with low-quality materials.

The movement of the fixing part 200 may be controlled by the positioner 300.

As will be described later, the positioner 300 controls the fixing unit 200 to rotate the antenna under test 10 in the azimuth direction (e.g., the horizontal direction of the arc structure 100) or performs elevation. It can be rotated in the (elevation) direction (for example, the vertical direction of the arc structure 100).

The positioner 300 can perform the test while rotating the test target antenna 10 in the azimuth direction under the control of the control unit, and when the sampling interval on the sphere is wide, the test is performed in the elevation direction through the positioner 300. By rotating the target antenna 10 at a certain angle, tilting the test antenna 10, and then rotating it in the azimuth direction, it is possible to obtain an input signal at locations with narrower sampling intervals in space.

Meanwhile, as shown in FIG. 2, a walkway 20 for a person's movement path must be placed within the chamber, and it is preferable that the walkway 20 is also implemented as a radio wave absorber.

At this time, the walkway 20 may be designed to have a wedge shape between the arc structures 100 as shown in FIG. 2, thereby improving accessibility to the center of the arc structure 100. You can.

The multi-band antenna high-speed measurement system 1000 shown in FIG. 2 is explained mainly on the structure within the chamber, and the configuration in terms of data processing for performance measurement may be the same as FIG. 3.

Figure 3 is a diagram illustrating the configuration of a multi-band antenna high-speed measurement system according to an embodiment of the present invention.

Referring to FIG. 3, the multi-band antenna high-speed measurement system 1000 according to the technical idea of the present invention includes a control unit 800 in addition to the arc structure 100, fixture 200, and positioner 300 described in FIG. 2. ) may include.

Additionally, the multi-band antenna high-speed measurement system 1000 may further include a signal analyzer 700.

The control unit 800 includes other components (e.g., positioner 300, signal analyzer) provided in the multi-band antenna high-speed measurement system 1000 to implement the multi-band antenna high-speed measurement method according to the technical idea of the present invention. 700, band selection switch 600, and/or probe selection switches 610, 620, etc.) can be controlled.

To this end, the control unit 800 may include a processor and a storage medium to implement the functions defined in this specification. The processor may refer to a computing device capable of executing a predetermined program (software code), and may be referred to as an implementation example of the data processing device or by various names such as vendor mobile processor, microprocessor, CPU, single processor, and multiprocessor. can be named

An average expert in the field of the present invention will clearly infer that the processor can drive the program to perform data processing (e.g., control of other configurations, derivation of radiation performance, etc.) necessary for the technical idea of the present invention. You will be able to.

The storage medium may refer to a device in which a program for implementing the technical idea of the present invention is stored/installed. Depending on the implementation, the storage medium may be divided into a plurality of different physical devices, and a portion of the storage medium may exist inside the processor. Depending on the implementation example, the storage medium may be implemented as a hard disk, solid state disk (SSD), optical disk, random access memory (RAM), and/or other various types of storage media, and if necessary, the control unit It may also be implemented in a detachable manner in (800).

The control unit 800 may be implemented as a data processing device such as a computer, laptop, or server, but is not limited thereto and may be implemented as any data processing device (e.g., mobile terminal, etc.) capable of executing the program. It can be.

In addition, the control unit 800 is configured to connect the processor, the storage medium, and various peripheral devices (e.g., input/output devices, display devices, audio devices, etc.) provided in the control unit 800 with these devices. An average expert in the technical field of the present invention can easily deduce that a communication interface (eg, a communication bus, etc.) may be provided.

The control unit 800 can perform a multi-band antenna high-speed measurement method according to the technical idea of the present invention while communicating with a predetermined manager terminal 900.

Although FIG. 3 shows an example in which the control unit 800 and the manager terminal 900 are implemented as separate devices, depending on the case, the manager terminal 900 and the control unit 800 may be implemented as one physical device. An average expert in the technical field of the present invention can easily deduce that it can be implemented as a device.

The control unit 800 controls the band selection switch 600 to select a frequency band to be tested, that is, an arc. For example, one of the first arc 110 and the second arc 120 may correspond to the first band (eg, 3.5 GHz), and the other may correspond to the second band (28 GHz).

The control unit 800 can select the frequency band corresponding to the antenna 10 under test through the band selection switch 600. Then, the first arc 110 corresponding to the selected frequency band (eg, first band) may be selected.

Then, the control unit 800 sequentially receives input signals from the probes included in the first probe set 400 corresponding to the selected arc (e.g., the first arc 110) through the signal analyzer 700. can do.

The control unit 800 may control the probe selection switches 610 and 620 to sequentially select probes.

The first probe selection switch 610 may be configured to select one probe from the first probe set 400, and the second probe selection switch 620 may be configured to select one probe from the second probe set 500. This may be a configuration for selecting a probe.

The input signal received by each of the probes may be transmitted to the signal analyzer 700 through the probe selection switches 610 and 620. Of course, each of the probes can transmit input signals corresponding to two channels (H-pol, V-pol).

Additionally, the transmitted input signal may be amplified through low-noise amplifiers 640 and 650 and transmitted to the signal analyzer 700, if necessary.

The signal analyzer 700 can process input signals received from probes to extract data for measuring radiation performance and transmit it to the control unit 800.

Then, the control unit 800 can derive the radiation performance (eg, radiation pattern, intensity, etc.) of the antenna under test 10 based on the data received from the signal analyzer 700.

The function or operation of the signal analyzer 700 for extracting necessary data from input signals received from a plurality of probes, and the algorithm for deriving radiation performance from such data are widely known, so detailed descriptions will be omitted in this specification. do.

Meanwhile, the control unit 800 can control the signal analyzer 700 to transmit the output signal output from the antenna under test 10. Even in this case, a low noise amplifier may be provided between the signal analyzer 700 and the test target antenna 10.

And in the case of this method, the control unit 800 can know the phase of the output signal it transmits, so a separate reference phase is not needed. However, for an antenna that independently outputs signals in an OTA (Over The Air) manner, an accurate reference phase may be required to measure radiation performance. And based on the reference phase, the phase information of the input signal received from each probe can be estimated.

For this purpose, the multi-band antenna high-speed measurement system 1000 may be further equipped with at least one phase reference probe (510, 510-1).

The phase reference probes 510 and 510-1 may be installed at a predetermined location within the chamber and outside the arc structure 100.

The phase reference probes 510 and 510-1 can also receive signals generated by the test target antenna 10 and transmit them to the signal analyzer 700, and the signal analyzer 700 measures phase information and performs the control. It can be transmitted to unit 800.

According to one embodiment, the multi-band antenna high-speed measurement system 1000 may be equipped with a plurality of phase reference probes 510 and 510-1, and each of the phase reference probes 510 and 510-1 is constant to each other. It can be placed more than a distance away.

And at this time, the control unit 800 may use the phase of a signal with higher power among the signals received by each of the plurality of phase reference probes 510 and 510-1 as reference phase information. When a plurality of phase reference probes 510 and 510-1 are provided, there is an effect of preventing the risk of the phase reference probes 510 and 510-1 being in a null direction/position.

Additionally, each of the phase reference probes 510 and 510-1 may also be connected to a driving device (not shown) capable of performing a predetermined rotational movement.

The control unit 800 may control the rotation of the phase reference probes 510 and 510-1 by controlling the driving device (not shown).

For example, the control unit 800 may control the driving device (not shown) to perform the same rotation as the rotation of the test target antenna 10. In this case, even when the test target antenna 10 rotates The phase reference probes 510 and 510-1 can be controlled to be located at the same point in the radiation pattern of the antenna 10 under test.

In order for the control unit 800 to measure the performance of the antenna under test 10, the arc corresponding to the antenna under test 10 may be selected through the band selection switch 600.

For example, when the first arc 110 is selected, the control unit 800 sequentially selects probes included in the first probe set 400 using the first probe selection switch 610, and the signal analyzer ( Input data can be received from 700).

When input data is received from all probes included in 1 probe set 400, the control unit 800 controls the positioner 300 to rotate the test target antenna 10 at a certain angle in the elevation direction. . Additionally, the test target antenna 10 can be rotated at a certain angle in the azimuth direction. The order of rotation in the elevation direction and rotation in the azimuth direction may be changed. Then, the probes included in the first probe set 400 can be sequentially selected to receive input data from the signal analyzer 700.

In this way, while repeatedly receiving input data after performing rotation in the elevation direction and/or azimuth direction of the target antenna, when input data for sufficient grid points in the sphere space are collected, the control unit 800 determines the radiation performance. The test can be completed by deriving the

Afterwards, when performing a test of the same antenna or a different antenna, if a test of the second band is necessary, the control unit 800 can also perform a test of the second band by simply selecting the second band.

Referring again to FIG. 3, the arc structure 100 has a first arc 110 and a second arc 120 intersecting at the intersection point 130, and at this time, a predetermined probe is applied to the intersection point 130. When installed, the probe preferably corresponds to both the first band and the second band.

For this purpose, the probe placed at the intersection point 130 may be a wideband probe capable of receiving signals corresponding to both the first band and the second band.

Meanwhile, since the difference in frequency bands between the first band and the second band is large, it may not be easy to implement a probe that covers both. For various other reasons, it may not be desirable or easy to place a broadband probe at the intersection point 130.

In this case, the arc structure 100 may be implemented with a probe coupling structure corresponding to the intersection point 130 so that the probes can be easily replaced. For example, in order to selectively and easily replace the probe, the probe coupling structure corresponding to the intersection point 130 has a groove for inserting and removing the probe, a mounting structure for easy attachment and detachment, or a variety of other ways to attach the probe. Replacement can be easily implemented.

In this way, when a coupling structure that facilitates replacement of the probe is adopted at the intersection point 130, when testing an antenna corresponding to the first band, a probe corresponding to the first band is placed at the intersection point 130, When testing an antenna corresponding to the second band, a probe corresponding to the second band is placed, which has the effect of allowing multiple band antennas to be tested quickly by simply replacing the probe at the position corresponding to the intersection point 130. .

According to another embodiment, the first probes 400 disposed on the first arc 110 and the second probes 500 disposed on the second arc 120 may be spaced apart from each other at a predetermined interval. You can. Of course, the spacing between the first probes 400 and the spacing between the second probes 500 may be different.

And at this time, no probe may be placed at all at the intersection point 130 due to the arrangement of the probes for the gap. This is because the intersection point 130 of the arc has different physical/spatial characteristics compared to other locations due to the intersection of the structure, and due to this problem, it is preferable not to measure the signal at the location corresponding to the intersection point 130 if possible. Because you can.

Additionally, when testing the antenna under test 10, it may be desirable to ensure that the direction of the main beam of the antenna under test 10 is not directed toward the intersection point 130.

To this end, the fixing unit 200 may be arranged so that the direction (i.e., main beam direction) of the antenna under test 10 is perpendicular to the intersection point 130. For example, in FIG. 2, when the intersection point 130 is located vertically above the antenna under test 10 in the drawing, the antenna under test 10 is perpendicular to the line connecting the intersection point 130 and the antenna. It may be installed in a direction (eg, a predetermined direction on a horizontal plane).

Meanwhile, an example of the intersection point 130 is shown in FIG. 5.

Figure 5 is a diagram for explaining an example of an intersection point of an arc structure according to an embodiment of the present invention.

Figure 5 shows an enlarged photograph of the first arc 110 and the second arc 120 and the intersection point 130 of the first arc 110 and the second arc 120. As shown, first probes are arranged at regular intervals in the first arc 110, and second probes are arranged at regular intervals in the second arc 120, but there are no probes at the intersection point 130. It may not be placed.

This has the effect of reducing the inconvenience of replacing probes or problems caused by errors due to physical/spatial specificity at the location even if a broadband probe is used.

Figure 6 is a diagram for explaining an example of a fixing unit according to an embodiment of the present invention.

Referring to FIG. 6, the fixing part 200 has an attachment structure (for example, a disk-shaped structure in FIG. 6) to which the antenna to be tested 10 can be added as shown in FIG. 6, and the attachment structure is vertically attached. It may include a vertical support supported by.

Since this vertical support may affect the radiation of radio waves in the case of an omnidirectional antenna, it may be desirable to implement it to have as narrow a width as possible.

In addition, when the vertical support is parallel to the axis of rotation of the positioner 300, there is a problem in that the rotation of the antenna under test 10 occurs only in an overly limited range. Therefore, as shown in FIG. 6, in order to expand the rotation radius, A horizontal supporter may be further provided, and one end of the horizontal supporter may be connected to the rotation axis of the positioner 300 and the other end may be connected to the vertical supporter.

Of course, other embodiments of the fixing unit 200 may vary.

Figure 7 is a diagram for explaining this example of a positioner according to an embodiment of the present invention.

Referring to FIG. 7 , the positioner 300 may be a mechanical device that controls the rotation of the fixing unit 200 under the control of the control unit 800.

That is, the rotation of the test target antenna 10 can be controlled, the test target antenna 10 can be rotated in the azimuth direction (AZ Axis), and the test target antenna 10 can be rotated in the elevation direction (Tilt Axis). Any device that can do this is sufficient.

According to one embodiment, the positioner 300 may be provided with an upper positioner 310 to which the fixing part 200 is coupled and a lower positioner 320 that drives rotation of the upper positioner 310.

When performing a test, the upper positioner 310 may be implemented to rotate the test target antenna 10 in the azimuth direction and may be implemented to be able to rotate independently from the lower positioner 320.

In addition, the lower positioner 320 is implemented to rotate the upper positioner 310 to a position suitable for the arc when selecting an arc, and moves the upper positioner 310 in the vertical direction, that is, in the elevation direction (Tilt Axis). It can also be rotated at a certain angle.

Additionally, as shown in FIG. 7, a radio wave absorber may be provided on the outside of the lower positioner 320.

Ultimately, according to the technical idea of the present invention, each arc is provided for a plurality of bands, and a plurality of probes are placed in each arc, so that antenna performance for different bands can be measured at high speed through these.

Meanwhile, the multi-band antenna high-speed measurement method according to an embodiment of the present invention can be implemented in the form of computer-readable program instructions and stored in a computer-readable recording medium, and the control program and The target program may also be stored in a computer-readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system.

Program instructions recorded on the recording medium may be those specifically designed and configured for the present invention, or may be known and available to those skilled in the software field.

Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and floptical disks. Includes magneto-optical media such as ROM, RAM, flash memory, and other hardware devices specifically configured to store and execute program instructions. Additionally, computer-readable recording media can be distributed across computer systems connected to a network, so that computer-readable code can be stored and executed in a distributed manner.

Examples of program instructions include not only machine language code such as that created by a compiler, but also high-level language code that can be executed by a device that electronically processes information using an interpreter, for example, a computer.

The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. .

Claims (12)

It includes the first arc and the second arc that intersect each other at a predetermined intersection point - the intersection point is a common area where the first arc and the second arc meet. an arc structure that allows a sphere space to be formed inside;
a fixing unit for fixing a target antenna to be tested in the sphere space;
a positioner for controlling the rotation of the target antenna by controlling the fixing part;
a first probe set including a plurality of first probes disposed at predetermined intervals on the sphere space side of the first arc to receive a signal of a first band; and
A multi-band antenna high-speed measurement system comprising a second probe set including a plurality of second probes disposed at predetermined intervals on the sphere space side of the second arc to receive signals of the second band.
The method of claim 1, wherein the multi-band antenna high-speed measurement system,
a band selection switch for selecting either the first probe set or the second probe set;
a probe selection switch for selecting one of probes included in the probe set selected by the band selection switch; and
High-speed measurement of a multi-band antenna further comprising a control unit for controlling the band selection switch and the probe selection switch to receive signal data corresponding to an input signal from the selected probe through a signal analyzer and deriving the radiation performance of the target antenna. system.
In claim 2, the control unit is:
By controlling the positioner,
A multi-band antenna high-speed measurement system characterized in that the test is performed by rotating the target antenna at a certain angle in the elevation direction and then rotating it in the azimuth direction.
The method of claim 1, wherein the arc structure:
A high-speed measurement system for a multi-band antenna, wherein a first probe corresponding to the first band or a second probe corresponding to the second band can be selectively replaced at the intersection point.
The method of claim 1, wherein at the intersection point,
A multi-band antenna high-speed measurement system, characterized in that broadband probes corresponding to both the first band and the second band are disposed.
The method of claim 1, wherein the first probes and the second probes are:
Each is spaced apart at predetermined intervals,
A multi-band antenna high-speed measurement system, characterized in that no probe is placed at the intersection point.
The method of claim 1, wherein the fixing unit,
A multi-band antenna high-speed measurement system, characterized in that the direction of the target antenna is arranged in a direction perpendicular to the intersection point.
The method of claim 2, wherein the multi-band antenna high-speed measurement system,
It is installed outside the arc structure and further includes at least one phase reference pro unit that receives a signal generated by the target antenna and transmits it to a signal processing device,
The control unit is,
A multi-band antenna high-speed measurement system that uses the phase information of the signal received from the phase reference probe as a reference phase.
The method of claim 8, wherein the multi-band antenna high-speed measurement system,
Contains a plurality of phase reference probes,
The control unit is,
A multi-band antenna high-speed measurement system that uses the phase of a signal with higher power among the signals received by each of the plurality of phase reference probes as a reference phase.
The method of claim 8, wherein the control unit:
A multi-band antenna high-speed measurement system, characterized in that at least one phase reference probe is controlled to perform the same rotation as the rotation of the target antenna.
In a method of testing a target antenna,
The multi-band antenna high-speed measurement system includes the first arc and the second arc that intersect each other at a predetermined intersection point - the intersection point is a common area where the first arc and the second arc meet. Selecting either the first arc or the second arc to test the target antenna disposed in the sphere space formed inside the first arc and the second arc - the first arc includes a first arc In order to receive signals in a band, a first probe set including a plurality of first probes is disposed at a predetermined interval on the sphere space side of the first arc, and receives signals in a second band in the second arc. To do so, a second probe set including a plurality of second probes is disposed at a predetermined interval on the sphere space side of the second arc;
sequentially selecting probes corresponding to an arc selected by the multi-band antenna high-speed measurement system and receiving an input signal transmitted from the selected probe; and
A multi-band antenna high-speed measurement method comprising measuring the performance of the target antenna based on the input signal received by the multi-band antenna high-speed measurement system.
A computer program installed in a data processing device and stored on a medium for performing the method described in claim 11.