CN209911474U - Testing device - Google Patents
Testing device Download PDFInfo
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- CN209911474U CN209911474U CN201920437099.XU CN201920437099U CN209911474U CN 209911474 U CN209911474 U CN 209911474U CN 201920437099 U CN201920437099 U CN 201920437099U CN 209911474 U CN209911474 U CN 209911474U
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Abstract
The utility model discloses a testing arrangement for it is stable to guarantee to be tested piece received power, include: an arc-shaped track providing part and an antenna; the antenna is used for transmitting a wireless radio frequency signal to the tested piece; the antenna is connected with the arc-shaped track providing part; the arc-shaped track providing part is used for enabling the antenna to move with a track as an arc by taking the measured piece as a circle center; and when the antenna performs circular motion, the preset angle of the antenna is aligned to the tested piece. The utility model discloses in, the stability and the accuracy of the received power of the measured piece (DUT) can be guaranteed in the cooperation of arc orbit portion of providing and antenna.
Description
Technical Field
The utility model relates to a microwave darkroom correlation technique field especially relates to a testing arrangement for it is stable to guarantee to be tested a received power.
Background
As shown in fig. 1, an antenna 2 'is mounted on the mast and transmits a radio frequency signal to a device under test 1' (DUT). The antenna 2 'and the tested piece 1' (DUT) are on the same horizontal plane, and meanwhile, the antenna 2 'can also move on a linear slide rail 3', so that the scene that the antennas at different azimuth angles transmit radio signals is simulated.
Since the antenna 2' has a corresponding pattern (different patterns for different antennas), as shown in the polar plot of fig. 2 above, the scalar is expressed as the magnitude of the antenna transmit power, and the angle is expressed as the different directions of the antenna. The transmitting power of the antenna 2' in different directions is different, so when the antenna 2' slides on the linear slide 3', different angles of the antenna 2' are aligned with the device under test 1' (DUT), and the power of the antenna at different angles is different, so that the accuracy of the receiving power of the device under test 1' (DUT) or the antenna 2' cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a testing device to ensure the stability of the receiving power of the tested device.
The utility model provides a testing device for it is stable to guarantee to be tested a received power, include: an arc-shaped track providing part and an antenna; the antenna is used for transmitting a wireless radio frequency signal to the tested piece; the antenna is connected with the arc-shaped track providing part; the arc-shaped track providing part is used for enabling the antenna to move with a track as an arc by taking the measured piece as a circle center; and when the antenna performs circular motion, the preset angle of the antenna is aligned to the tested piece.
Further, in the above test apparatus, the arc track providing portion is one or more arc-shaped sliding rail assemblies.
Further, in the above testing apparatus, the arc slide rail assembly includes a first antenna connecting unit and a first arc slide rail; the circle center of the first arc-shaped sliding rail is the measured piece; the antenna is fixedly connected to the first antenna connecting unit; the first antenna connecting unit is connected in the first arc-shaped sliding rail in a sliding mode.
Further, in the above testing apparatus, the arc slide rail assembly further includes a second antenna connection unit and a second arc slide rail; the second antenna connecting unit is connected in the second arc-shaped slide rail in a sliding manner; the circle center of the second arc-shaped sliding rail is also the measured piece; and the radius of the second arc-shaped slide rail is different from that of the first arc-shaped slide rail.
Further, in the above test apparatus, the first arc-shaped slide rail is in a horizontal direction or a vertical direction.
Further, in the above test apparatus, the first arc-shaped slide rail and the second arc-shaped slide rail are in a horizontal direction; or the first arc-shaped sliding rail and the second arc-shaped sliding rail are in the vertical direction.
Further, in the above test apparatus, the first antenna connection unit and the second antenna connection unit are poles.
Further, in the above test apparatus, the arc track providing part comprises a mechanical arm and a controller; the antenna is connected to the mechanical arm; the mechanical arm is electrically connected with the controller; the controller is used for controlling the mechanical arm to perform circular arc motion by taking the measured piece as a circle center.
Further, in the above testing apparatus, the predetermined angle of the antenna to the tested object is: and the peak point of the directional diagram of the normal line of the antenna aperture surface is aligned to the tested piece.
The utility model provides a testing arrangement is when using, and arc orbit provides the portion and makes the antenna use the piece of being surveyed to carry out the motion that the orbit is the circular arc as the centre of a circle. Thus, a certain angular alignment of the antenna to the Device Under Test (DUT) can always be ensured when the antenna is moved by means of the arc-shaped track provider. Therefore, when the input power of the antenna is stable, the gain of the antenna is also stable, and the angle of the antenna alignment to the tested piece (DUT) is also fixed; the space loss of the electromagnetic wave at a fixed distance is fixed under the same environment, and finally the power received by a tested piece (DUT) is also stable.
In view of this, the arc-shaped track providing part and the antenna are matched, so that the stability and the accuracy of the receiving power of the tested Device (DUT) can be ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a prior art testing apparatus;
FIG. 2 is a diagram of the transmission power when the antenna is at different angles in the prior art;
FIG. 3 is a schematic structural diagram of a first embodiment of the testing device of the present invention;
fig. 4 is a schematic structural diagram of a second embodiment of the testing device of the present invention.
Description of the reference numerals
1' measured part
2' antenna
3' linear slide rail
1 measured part
2 aerial
3 first arc slide rail
4 first antenna connection unit
5 second arc slide rail
6 second antenna connection unit
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the information processing apparatus of the present invention are described in detail below.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the testing device according to the first embodiment of the present invention. The test device of the embodiment is used for ensuring the stability of the receiving power of the tested piece and comprises an antenna 2 and an arc-shaped track providing part. The antenna 2 is used for transmitting radio frequency signals to the tested piece 1.
In this embodiment, the arc track providing portion is a circular arc slide rail assembly. This convex slide rail set spare includes: a first antenna connecting unit 4 and a first arc-shaped slide rail 3; the circle center of the first arc-shaped sliding rail 3 is the measured piece 1; the antenna 2 is fixedly connected to the first antenna connecting unit 4; the first antenna connecting unit 4 is slidably connected in the first arc-shaped slide rail 3.
The antenna 2 can move with the track as a circular arc by taking the measured piece 1 as a circle center.
Further, when the antenna 2 performs the circular arc motion, the antenna 2 may be aligned with the object 1 at a predetermined angle, for example, in a specific implementation, a peak point of a pattern of a normal line of the mouth surface of the antenna 2 may be set to be aligned with the object 1.
In one embodiment, the first antenna connection unit 4 may be a pole.
In addition, it should be noted that the first arc-shaped sliding rail 3 may be disposed in a horizontal direction or a vertical direction, or disposed at any angle with reference to the horizontal direction, and the present invention does not limit the configuration.
When the testing device is used, the first arc-shaped sliding rail enables the antenna to move with the track as an arc by taking the tested piece as the center of a circle. Therefore, when the antenna is arranged on the first arc-shaped sliding rail, a specific angle of the antenna can be always aligned with a tested part (DUT). Therefore, when the input power of the antenna is stable, the gain of the antenna is also stable; the angle of the antenna alignment to the tested piece (DUT) is fixed, and the space loss of the electromagnetic wave at a fixed distance under the same environment is also fixed, so that the power received by the tested piece (DUT) is finally ensured to be stable.
It can be seen that the first arc-shaped sliding rail 3 is matched with the antenna 2, so that the stability and accuracy of the received power of a tested part (DUT) can be ensured.
Due to different application requirements, for example, when millimeter wave radars are measured, multiple radar targets are needed to be simulated, one radar target needs to be matched with one sliding rail, and multiple radar targets need to be matched with multiple sliding rails. This is the case in the following examples testing the device.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a testing device according to a second embodiment of the present invention. This embodiment includes two circular arc shaped slide rail assemblies. The method comprises the following steps:
the arc-shaped slide rail assembly comprises a first antenna connecting unit 4 and a first arc-shaped slide rail 3; the circle center of the first arc-shaped sliding rail 3 is the measured piece 1; the antenna 2 is fixedly connected to the first antenna connecting unit 4; the first antenna connecting unit 4 is slidably connected in the first arc-shaped slide rail 3.
The other arc-shaped sliding rail component comprises a second antenna connecting unit 6 and a second arc-shaped sliding rail 5; the second antenna connecting unit 6 is slidably connected in the second arc-shaped slide rail 5; the circle center of the second arc-shaped sliding rail 5 is also the measured part 1; the radius of the second circular arc slide rail 5 is different from that of the first circular arc slide rail 3. In fig. 4, it can be seen that, in the present embodiment, the radius of the second circular arc slide rail 5 is larger than that of the first circular arc slide rail 3.
Each antenna 2 can move on the first arc-shaped slide rail 3 and the second arc-shaped slide rail 5 by taking the measured piece 1 as the center of a circle and taking the track as an arc.
As in the above embodiment, when the antenna 2 performs the circular arc motion, the measured object 1 is aligned by using the predetermined angle of the antenna 2, for example, in the specific implementation, the peak point of the directional diagram of the normal line of each antenna aperture surface may be set to be aligned with the measured object 1. The first antenna connecting unit and the second antenna connecting unit can be poles.
In addition, in one embodiment, the first circular arc slide rail 3 and the second circular arc slide rail 5 may be arranged in a horizontal direction, or both may be arranged in a vertical direction. Of course, any angle with the horizontal as a reference may be set, and may be selected according to actual conditions. The utility model discloses do not limit to this.
When the device is used, the two antennas respectively move with the track as a circular arc by taking the measured piece as the center of a circle under the constraint of the first circular arc slide rail and the second circular arc slide rail. The antennas on the two arc-shaped slide rails respectively transmit radio frequency signals to the tested piece, and the tested piece achieves the test purpose by receiving the two radio frequency signals. When the input power of each antenna is stable, the gain of each antenna is also stable; the angle of each antenna aligned to the tested piece (DUT) is fixed, and the space loss of the electromagnetic wave at a fixed distance is also fixed under the same environment, so that the power received by the tested piece (DUT) is also stable.
It should be noted that, although this embodiment is given two circular arc slide rails, the utility model discloses not being limited to the quantity of circular arc slide rail, according to the application requirement of difference, three or more also circular arc slide rails cooperate mutually, accomplish the test jointly, also be within the scope of protection of the utility model.
In the embodiment of fig. 3 and 4, the movement of the circular arc path is achieved by a circular arc slide rail assembly. The motion mode of the same effect path of the arc-shaped sliding rail can be realized by other mechanical devices. For example by a robotic arm.
In one embodiment, the arcuate trajectory provider may include a robotic arm and a controller. In implementation, the antenna is fixedly connected to the mechanical arm; the mechanical arm is electrically connected with the controller; the controller is used for controlling the mechanical arm to perform circular arc motion by taking the measured piece as a circle center. It is well known to those skilled in the art that the controller controls the mechanical arm to move along an arc trajectory, and the detailed description thereof is omitted here.
Of course, the arm is also the utility model discloses give the example, also can be for other mechanical structure, as long as the antenna uses the measured piece as the centre of a circle, and the motion mode according to the route motion of arc slide rail is all within the protection scope of the utility model.
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications can be made to the embodiments without substantially departing from the spirit and scope of the present invention. Therefore, all such modifications are included in the scope of the present invention.
Claims (9)
1. A test device for ensuring stable received power of a piece under test, comprising:
an arc-shaped track providing part and an antenna;
the antenna is used for transmitting a wireless radio frequency signal to the tested piece;
the antenna is connected with the arc-shaped track providing part;
the arc-shaped track providing part is used for enabling the antenna to move with a track as an arc by taking the measured piece as a circle center; and is
And when the antenna performs circular motion, the antenna is aligned to the measured piece at a preset angle.
2. The test device of claim 1,
the arc track providing part is one or more arc-shaped sliding rail components.
3. The test device of claim 2,
the arc-shaped slide rail assembly comprises a first antenna connecting unit and a first arc-shaped slide rail;
the circle center of the first arc-shaped sliding rail is the measured piece;
the antenna is fixedly connected to the first antenna connecting unit;
the first antenna connecting unit is connected in the first arc-shaped sliding rail in a sliding mode.
4. The test device of claim 3,
the arc-shaped slide rail assembly further comprises a second antenna connecting unit and a second arc-shaped slide rail;
the second antenna connecting unit is connected in the second arc-shaped slide rail in a sliding manner;
the circle center of the second arc-shaped sliding rail is also the measured piece; and the number of the first and second electrodes,
the radius of the second arc-shaped sliding rail is different from that of the first arc-shaped sliding rail.
5. The test device of claim 3,
the first arc-shaped sliding rail is in the horizontal direction or the vertical direction.
6. The test device of claim 4,
the first arc-shaped sliding rail and the second arc-shaped sliding rail are in the horizontal direction; or the like, or, alternatively,
the first arc-shaped sliding rail and the second arc-shaped sliding rail are in the vertical direction.
7. The test device of claim 6,
the first antenna connecting unit and the second antenna connecting unit are pole clasps.
8. The test device of claim 1,
the arc-shaped track providing part comprises a mechanical arm and a controller;
the antenna is connected to the mechanical arm;
the mechanical arm is electrically connected with the controller;
the controller is used for controlling the mechanical arm to perform circular arc motion by taking the measured piece as a circle center.
9. The test device of claim 2 or 8,
the preset angle of the antenna is aligned with the tested piece as follows: and the peak point of a directional diagram of the normal line of the opening surface of the antenna is aligned to the tested piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437099.XU CN209911474U (en) | 2019-04-02 | 2019-04-02 | Testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437099.XU CN209911474U (en) | 2019-04-02 | 2019-04-02 | Testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209911474U true CN209911474U (en) | 2020-01-07 |
Family
ID=69034861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437099.XU Active CN209911474U (en) | 2019-04-02 | 2019-04-02 | Testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209911474U (en) |
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2019
- 2019-04-02 CN CN201920437099.XU patent/CN209911474U/en active Active
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