CN214151026U - Calibrating device for network analyzer - Google Patents
Calibrating device for network analyzer Download PDFInfo
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- CN214151026U CN214151026U CN202120089032.9U CN202120089032U CN214151026U CN 214151026 U CN214151026 U CN 214151026U CN 202120089032 U CN202120089032 U CN 202120089032U CN 214151026 U CN214151026 U CN 214151026U
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- network analyzer
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- microwave switches
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- 238000012795 verification Methods 0.000 claims abstract description 33
- 238000003556 assay Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003012 network analysis Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a calibrating device for a network analyzer, which comprises two microwave switches, wherein each microwave switch is provided with a main port and a plurality of branch ports; the plurality of verification components are respectively connected with the branch ports of the two microwave switches so as to form a plurality of verification channels between the two microwave switches; and the circuit board is electrically connected to the two microwave switches so as to control the two microwave switches to open one of the verification channels in an alternative mode and close the other verification channels when the network analyzer is verified. The utility model discloses a connect a plurality of verification components and form multichannel examination passageway between two microwave switches, in the verification process, utilize circuit board control microwave switch to put through corresponding examination passageway one by one as required to once only accomplish the examination of a plurality of parameters of network analyzer, improve the convenience of examining and determine the operation, have compact structure, convenient operation, stability advantage such as good.
Description
Technical Field
The utility model relates to an electronic equipment examination measurement technical field specifically is a calibrating installation for network analyzer.
Background
The network analyzer is a comprehensive microwave measuring instrument capable of scanning and measuring in a wide frequency band to determine network parameters, is widely applied to the fields of development, production, maintenance, measurement and the like of new-generation military electronic equipment represented by phased array radars, and can also be applied to various fields of accurate guidance, stealth and anti-stealth, aerospace, satellite communication, radar detection and monitoring, teaching experiments, antenna and RCS (radar cross section) testing, component testing, material testing and the like.
To calibrate the performance of a network analyzer, the relevant standards require that the network analyzer be certified using a network analyzer test piece. The network analyzer inspection piece consists of a 20dB attenuator, a 40dB/50dB attenuator, a standard air line and a standard off-line, and is used for respectively inspecting four parameters of a 20dB transmission amplitude, a 40dB/50dB transmission amplitude, a transmission phase and a port reflection coefficient module value of the network analyzer.
Limited by the structure of the network analyzer test piece, the conventional verification process is to sequentially connect each part of the test piece into two ports of the network analyzer, and then sequentially verify four parameters of the network analyzer.
In addition, the network analyzer adopts various types of coaxial interfaces, such as 7mm type, N type, L16 type, 3.5mm type, 2.92mm type, 2.4mm type and the like, and for the network analyzer with different coaxial interfaces, a test piece in a corresponding interface form is required to perform verification on the network analyzer, thereby further increasing the complexity of verification operation.
SUMMERY OF THE UTILITY MODEL
For solving traditional calibrating installation, examine and determine inconvenient technical problem, the utility model provides a calibrating installation for network analyzer can effectively improve the convenience of network analyzer examination.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
a calibrating device for a network analyzer comprises two microwave switches, wherein each microwave switch is provided with a main port and a plurality of branch ports; the plurality of verification components are respectively connected with the branch ports of the two microwave switches so as to form a plurality of verification channels between the two microwave switches; and the circuit board is electrically connected to the two microwave switches so as to control the two microwave switches to open one of the verification channels in an alternative mode and close the other verification channels when the network analyzer is verified.
By adopting the technical scheme, when the network analyzer is checked, two ports of the network analyzer to be checked are electrically connected with the main port of the microwave switch, one path of checking channel is opened by utilizing a computer or other control terminal control circuit boards to finish the checking of one parameter of the network analyzer, then the circuit boards are switched to the other path of checking channel to check the next parameter, and after multiple switching, the checking of all parameters of the network analyzer is automatically finished at one time without repeated physical disassembly, so that the operation convenience and the checking efficiency are greatly improved.
Preferably, the microwave switches, the verification components and the circuit board are integrated in a casing, and main ports of the two microwave switches are respectively connected with lead-out connectors led out of the casing and used for connecting two ports of a network analyzer during network analyzer verification. The scheme can ensure the structural performance of the calibrating device and facilitate the installation of each part.
Preferably, turntables are respectively and rotatably installed on the outer side of the shell at positions corresponding to the two leading-out joints, at least two conversion joints with different models are installed on the turntables, and the leading-out joints can be selectively butted with any one conversion joint by rotating the turntables. Through the design, the calibrating device can be matched with various interfaces of the network analyzer, and the universality of equipment, namely the operation convenience, is improved.
Preferably, the shell is provided with fixing rods on one sides of the two leading-out connectors respectively, the rotary disc is movably sleeved on the fixing rods, and the end parts of the fixing rods are provided with external threads matched with the internal threads in the inner hole of the rotary disc. Therefore, after the rotary table is used, the rotary table can be fixed by using the external thread at the end part of the fixing rod, and damage is avoided.
Preferably, the two microwave switches are opposite to each other, the main port and the branch port are arranged on the end face of one side opposite to the two microwave switches, the circuit board is connected with the upper edges of the two microwave switches, and the end faces of one sides, far away from each other, of the two microwave switches are respectively connected with the circuit board through the wiring terminal and the connecting wire. The two microwave switches are arranged in a radial symmetrical mode, and the circuit board and the plurality of verification components are arranged between the two microwave switches, so that the design is convenient to install and maintain, and the compactness of the whole structure of the verification device is ensured.
In order to further improve the structural compactness of the calibrating device, the main port is arranged in the middle of the end face of the microwave switch, the branch ports are distributed on the circumferential outer side of the main port in an array mode, the leading-out connector is connected with the main port through a bent-angle coaxial connector, and a flange fixed with the shell is arranged on the leading-out connector. Meanwhile, the design can ensure the symmetry and consistency of all the verification channels, and has positive effects on ensuring the stability of the verification device and the accuracy of verification results.
In order to facilitate the connection of a power supply, a power supply interface is arranged on the circuit board and is exposed on the outer wall of the shell.
The verification component at least comprises a 20dB attenuator, a 40dB/50dB attenuator, a standard air line and a standard off-line so as to verify four parameters of 20dB transmission amplitude, 40dB/50dB transmission amplitude, transmission phase and port reflection coefficient module value of the network analyzer respectively.
Has the advantages that:
adopt the utility model provides a calibrating installation for network analyzer forms multichannel examination passageway through connecting a plurality of examination parts between two microwave switches, and in the verification process, utilize circuit board control microwave switch to put through corresponding examination passageway one by one as required to once only accomplish the examination of a plurality of parameters of network analyzer, improve the convenience of examining and determine the operation, have compact structure, convenient operation, stability advantage such as good.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the calibrating apparatus for a network analyzer according to the present invention;
FIG. 2 is a schematic diagram of the external structure of the assay device for a network analyzer shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a microwave switch;
FIG. 4 is a schematic structural view of a turntable;
FIG. 5 is a schematic structural view of a fixing rod;
fig. 6 is a reference diagram of the use state when the network analyzer is used.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
The calibrating device for the network analyzer comprises a shell 4 in a hollow cuboid structure, wherein the outer wall of the front side of the shell 4 is provided with a plurality of symmetrically arranged leading-out joints 5, one side of each of the two leading-out joints 5 is respectively provided with a rotary table 6 through a fixing rod 62, the two rotary tables 6 are symmetrically arranged along the length direction of the shell 4, and the rotary table 6 is provided with two conversion joints 61 with different models along the circumferential direction.
Fig. 1 shows in detail the internal structure of the calibrating apparatus for a network analyzer shown in fig. 2, two microwave switches 1 arranged in a mirror symmetry manner are arranged in a housing 4, and the two microwave switches 1 are connected with a plurality of calibrating components 2 through a circuit board 3 to form a multi-path calibrating channel 2a between the two microwave switches 1.
As shown in fig. 3, the microwave switch 1 used in this embodiment has a main port 11 at a central position of an end portion of one end thereof, 4 branch ports 12 uniformly distributed along a circumferential direction of the main port 11, and a terminal 13 at the other end of the microwave switch 1.
The end faces of the two microwave switches 1, which are provided with the main ports 11 and the branch ports 12, are opposite to each other, in this embodiment, in order to meet the requirements of the existing verification standard, 4 verification components 2 are provided, which are respectively a 20dB attenuator, a 40dB/50dB attenuator, a standard air line and a standard off-line, and of course, the number of the verification components 2 and the number of the branch ports 12 can be adaptively adjusted according to different verification requirements. The 4 verification components 2 are connected to one sub-port of the other microwave switch 1 by the sub-port 12 of one microwave switch 1 in a one-to-one correspondence manner.
The circuit board 3 is connected at the upper side between two microwave switches 1 to as the holding member of two microwave switches 1, the wiring end 13 of two microwave switches 1 is respectively through connecting wire 14 and circuit board 3 electric connection, installs power source 8 on the circuit board 3, and after accomplishing the assembly with casing 4, power source 8 exposes on the front side outer wall of casing 4, so that for circuit board 3 power supply.
The main ports 11 of the two microwave switches 1 are respectively connected to the leading-out interfaces 5 on the outer wall of the front side of the casing 4 through the bent-angle coaxial connectors 7 bent at 90 degrees in a one-to-one correspondence manner, and in order to be fixed with the casing 4, the leading-out interfaces 5 are further provided with flanges 51 so as to be fixed with the casing 4 through the flanges 51.
The main port 11 and the branch port 12 of the microwave switch 1, each verification component 2, the bent angle coaxial connector 7 and the lead-out interface 5 all adopt connector structures with the same specification.
Fig. 4 and 5 are schematic structural views of the rotary disc 6 and the fixing rod 62, respectively, wherein the rotary disc 6 is a disc structure, and the center of the rotary disc has an inner hole 6a matched with the fixing rod 62 and can rotate around the fixing rod 62.
Two crossover sub 61 use hole 6a as the center of symmetry and be central symmetry distribution on the same toroid of carousel 6, crossover sub 61 includes the first end 61a that matches with leading out interface 5 and is used for connecting the second end 61b of waiting to examine and determine the network analysis appearance, first end 61a and second end 61b set up the front and back surface at carousel 6 with coaxial mode, through rotating carousel 6, the first end 61a of each crossover sub 61 all can rotate to the position just right with the corresponding interface 5 of leading out.
Although the embodiment adopts a mode of mounting two adapters 61 on the rotating disc 6, according to actual requirements, the adapters 61 on the rotating disc 6 may be multiple, and have different specifications, for example, 7mm type, N type, L16 type, 3.5mm type, 2.92mm type, 2.4mm type, and so on, so as to meet the connection requirements of different types of ports of the network analyzer.
The fixing rod 62 is integrally fixed to the outer wall of the front side of the shell 4 in a welding or threaded mode, the fixing rod 62 comprises a rod portion 62a with a smooth outer wall, the far end of the rod portion 62a protrudes outwards in the radial direction to form a limiting portion 62b to prevent the rotary disc 6 from falling off, external threads 62c are further processed on the position, close to the limiting portion 62b, of the rod portion 62a, internal threads matched with the external threads 62c are processed in an inner hole of the rotary disc 6, when the rotary disc 6 is located on the smooth rod portion 62a, the rotary disc 6 can rotate freely to enable the corresponding conversion connector 61 to be in butt joint with the leading-out connector 5, when verification is finished and a verification device is not used, the rotary disc 6 can be screwed to the end portion of the fixing rod 62, and the rotary disc is fixed through the external threads 62 to prevent damage.
The utility model discloses a use please refer to fig. 6, utilize the net twine will the utility model is used for network analyzer's calibrating installation is connected with computer 9, and supply power to calibrating installation, 6 rotatory interface forms to corresponding with network analyzer of carousel, be connected corresponding crossover sub 61 with extraction joint 5, utilize coaxial cable to wait to examine two ports of network analyzer 10 and be connected with crossover sub 61 on the carousel 6 respectively, send out instruction through computer 9 and utilize circuit board 3 control microwave switch 1, with the help of microwave switch 1's route function, put through each examination passageway 2a in proper order, and then accomplish the examination to four parameters of network analyzer 20dB transmission amplitude, 40dB 50dB transmission amplitude, the transmission phase place, port reflection coefficient modulus value.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (8)
1. An assay device for a network analyzer, comprising:
two microwave switches (1), said microwave switches (1) having one main port (11) and a plurality of sub-ports (12);
the calibration components (2) are respectively connected with the branch ports (12) of the two microwave switches (1) so as to form a multi-path calibration channel (2a) between the two microwave switches (1); and
and the circuit board (3) is electrically connected to the two microwave switches (1) so as to control the two microwave switches (1) to alternatively open one of the verification channels (2a) and close the other verification channels (2a) when the network analyzer is verified.
2. The certification apparatus for a network analyzer according to claim 1, wherein: the network analyzer is characterized in that the microwave switch (1), the verification component (2) and the circuit board (3) are integrated in a shell (4), and main ports (11) of the two microwave switches (1) are respectively connected with a leading-out connector (5) led out of the shell (4) and used for being connected with two ports of the network analyzer when the network analyzer is detected.
3. The certification apparatus for a network analyzer according to claim 2, wherein: casing (4) outside is corresponding two leading-out joint (5) positions and is installing carousel (6) with rotatable mode respectively, install crossover sub (61) of two at least different models on carousel (6), through rotating carousel (6), leading-out joint (5) can selectively dock with arbitrary one crossover sub (61).
4. The certification apparatus for a network analyzer according to claim 3, wherein: a fixing rod (62) is respectively arranged on one side of each of the two leading-out connectors (5) of the shell (4), the rotary table (6) is movably sleeved on the fixing rod (62), and the end part of the fixing rod (62) is provided with an external thread matched with an internal thread in an inner hole of the rotary table (6).
5. The certification apparatus for a network analyzer according to claim 3, wherein: two microwave switch (1) are just right each other, main port (11) and branch port (12) set up at two microwave switch (1) just right side end face, two microwave switch (1) are connected to circuit board (3) and are followed, and two microwave switch (1) keep away from one side end face each other and are connected with circuit board (3) through wiring end (13) and connecting wire (14) respectively.
6. The certification apparatus for a network analyzer according to claim 5, wherein: the main port (11) is arranged in the middle of the end face of the microwave switch (1), the branch ports (12) are distributed on the outer side of the main port (11) in the circumferential direction in an array mode, the leading-out connector (5) is connected with the main port (11) through a bent-angle coaxial connector (7), and a flange (51) fixed with the shell (4) is arranged on the leading-out connector (5).
7. The certification apparatus for a network analyzer according to claim 5, wherein: and a power supply interface (8) is mounted on the circuit board (3), and the power supply interface (8) is exposed on the outer wall of the shell (4).
8. The certification apparatus for a network analyzer according to any one of claims 1 to 7, wherein: the certification part (2) at least comprises a 20dB attenuator, a 40dB/50dB attenuator, a standard air line and a standard off-line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020232219371 | 2020-12-28 | ||
| CN202023221937 | 2020-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214151026U true CN214151026U (en) | 2021-09-07 |
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ID=77547844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120089032.9U Expired - Fee Related CN214151026U (en) | 2020-12-28 | 2021-01-13 | Calibrating device for network analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214151026U (en) |
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2021
- 2021-01-13 CN CN202120089032.9U patent/CN214151026U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210907 |