CN216351003U - Intermodulation test fixture for antenna combiner - Google Patents
Intermodulation test fixture for antenna combiner Download PDFInfo
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- CN216351003U CN216351003U CN202122923656.9U CN202122923656U CN216351003U CN 216351003 U CN216351003 U CN 216351003U CN 202122923656 U CN202122923656 U CN 202122923656U CN 216351003 U CN216351003 U CN 216351003U
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- ground connection
- antenna combiner
- transmission line
- joint
- copper billet
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Abstract
The utility model discloses an intermodulation test fixture for an antenna combiner, which comprises an insulating tray, a plurality of switching parts and adapters, wherein each switching part comprises a grounding copper block and a transmission line which are arranged on the insulating tray, each grounding copper block is provided with a grounding channel for a cable joint on the antenna combiner to be tested to pass through, each adapter comprises a joint and a cable, each joint is arranged on the insulating tray, one end of each cable is arranged in the joint, and the other end of each cable is electrically connected with the grounding copper block and the transmission line; the accuracy of intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved.
Description
Technical Field
The utility model relates to the technical field of antenna combiner testing, in particular to an intermodulation testing jig for an antenna combiner.
Background
With the increasing development of communication technology, the requirements on equipment and devices are higher and higher, and the volume, weight, electrical indexes, cost and the like become indexes for improving the devices or the equipment; the demand for antenna combiners as an important component of antennas has increased accordingly. After the existing antenna combiner is assembled, a performance test is generally performed; when the performance test is carried out, the cable connector on the antenna combiner is connected with intermodulation test equipment through a cable. Because the antenna combiner is usually connected with the intermodulation test equipment through a cable, the slight shaking of the cable can cause errors of test data; meanwhile, the cable joint is easy to wear after being tested and switched for many times, so that the yield of the antenna combiner is reduced. Therefore, for an intermodulation test fixture for an antenna combiner, when performing performance test, the antenna combiner is usually connected with intermodulation test equipment through a cable, and fine shaking of the cable can cause errors of test data; the problem that cable connectors on an antenna combiner are prone to abrasion after being tested and switched for multiple times is to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above disadvantages, the present invention aims to provide an intermodulation test fixture for an antenna combiner, which has a simple structure and is suitable for testing intermodulation indexes of various antenna combiners; the accuracy of intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved.
In order to achieve the above purposes, the utility model adopts the technical scheme that: the utility model provides an intermodulation test fixture for antenna combiner, including insulating tray, a plurality of switching portions and adapter, every switching portion all is including setting up ground connection copper billet and the transmission line on insulating tray, all be provided with the ground connection passageway that the cable joint that supplies on the antenna combiner under test passed on every ground connection copper billet, every adapter all sets up on insulating tray including joint and cable and every joint, the one end of every cable all sets up in the interface, the other end all is connected with ground connection copper billet and transmission line electricity.
The intermodulation test fixture for the antenna combiner has the advantages that when the intermodulation index test of a product is carried out, the tested antenna combiner is placed on the insulating tray and is pushed forward stably, each cable joint of the tested antenna combiner passes through the grounding channel, and the tested antenna combiner is grounded by fastening the silver-plated screws; and then each cable joint is electrically connected with the transmission line (other modes such as wire connection, thread fastening and crimping process and the like can be realized). Because one end of each cable is arranged in the interface, and the other end of each cable is already electrically connected with the grounding copper block and the transmission line, the tested antenna combiner realizes the test of intermodulation indexes through the plurality of grounding copper blocks, the transmission lines, the joints and the cables as long as the interface is externally connected with intermodulation test equipment. After the test is finished, the pressing block connecting rod is lifted, the cable connector is separated from the transmission line, the cable connector is taken out from the grounding channel, and the tested antenna combiner is taken down from the insulating tray. The testing device can test the antenna combiners of different models, and the number of the switching parts and the number of the adapters can be adjusted according to the increase or decrease of the number of the cable connectors on the tested antenna combiner. Wherein, the joint is the standard joint, reduces and connects the expense, plays the effect of saving cost. The arrangement of the insulating tray effectively enables the tested antenna combiner to be stable during testing; the connector and the cable can be kept stable when the tested antenna combiner is tested, so that shaking is avoided, misjudgment of intermodulation indexes caused by unstable contact with intermodulation test equipment is reduced, and the accuracy of the intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved. The testing jig for the antenna combiner with the structure has a simple structure, and can be suitable for testing intermodulation indexes of various antenna combiners; the accuracy of intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved.
The improved grounding copper block comprises a plurality of grounding copper blocks, a plurality of transmission lines and a plurality of supporting grooves, wherein each grounding copper block is of a U-shaped structure, each transmission line is located in the U-shaped groove of the grounding copper block, each grounding channel is arranged on one U-shaped arm of the grounding copper block, each supporting groove is arranged on the other U-shaped arm of the grounding copper block, and one end, far away from the interface, of each cable can penetrate through the supporting grooves and is welded with the grounding copper blocks and the transmission lines. The grounding channel and the supporting groove are respectively positioned on two sides of the grounding copper block. The supporting groove plays a supporting role for the cable.
The grounding copper block is provided with a plurality of grounding screws, each grounding copper block is provided with a screw hole communicated with the grounding channel, and each grounding screw can penetrate through the screw hole to the grounding channel in a threaded manner. After the cable joint of the tested antenna combiner passes through the grounding channel, each grounding screw penetrates through the screw hole to the grounding channel in a threaded manner and is in contact with the cable joint, so that the tested antenna combiner is further stably grounded, misjudgment of intermodulation indexes caused by unstable contact of the cable joint and a transmission line is reduced, and the accuracy is further improved. The grounding screw is a silver-plated brass screw, so that the good grounding of the tested antenna combiner is further ensured.
The utility model is further improved by comprising a pin, a pressing seat arranged on the insulating tray and a connecting rod hinged on the insulating tray, wherein the pressing seat corresponds to the connecting rod, a plurality of switching parts are arranged between the pressing seat and the connecting rod, each transmission line is arranged below the connecting rod, a first pressing hole is formed in the pressing seat, a second pressing hole is formed in the free end of the connecting rod, the pin can penetrate through the first pressing hole and the second pressing hole and lock the free end of the connecting rod on the pressing seat, pressing blocks are arranged at positions of the connecting rod corresponding to the transmission lines, and a semicircular groove is formed in each pressing block. Each cable joint of the tested antenna combiner passes through the grounding channel, and the tested antenna combiner realizes grounding; then the connecting rod is rotated, and the pin can pass through the first pressing hole and the second pressing hole to lock the free end of the connecting rod on the pressing seat; at the moment, each semicircular groove is contacted with the cable joint and can compress the cable joint on the transmission line, so that the cable joint is electrically connected with the transmission line. And after the test is finished, taking out the pin and lifting the connecting rod. After the cable joint is tightly pressed on the transmission line, the intermodulation index of the tested antenna combiner can be accurately tested, the misjudgment of the intermodulation index caused by unstable contact of the cable joint and the transmission line is reduced, and the accuracy is further improved. Wherein, the briquetting can be the insulating material such as PTFE.
The insulating tray comprises a bottom plate and a side plate which are connected in a threaded mode, a plurality of grounding copper blocks and transmission lines are arranged on the bottom plate, the grounding copper blocks and the transmission lines are arranged on the same vertical plane, a plurality of connectors are arranged on the side plate, the connectors are arranged on the same vertical plane, and each grounding copper block, each transmission line and each connector are arranged on the same horizontal plane.
As a further improvement of the utility model, one end of the bottom plate far away from the side plate is provided with a step-shaped structure. When the performance test is carried out, the tested antenna combiner is placed at the step-shaped structure at one end of the bottom plate.
The utility model is further improved in that a fifth axle pin hole is formed in the bottom plate, a first axle pin hole is formed in the side plate, and the side plate can be locked on the bottom plate through the first axle pin, the first axle pin hole and the fifth axle pin hole.
The utility model is further improved in that a plurality of third shaft pin holes and fourth shaft pin holes are arranged on the bottom plate, each grounding copper block is provided with a connecting hole and can be locked on the bottom plate through the third shaft pin, the connecting hole and the third shaft pin hole, each transmission line is provided with a fixing hole and can be locked on the bottom plate through the fourth shaft pin, the fixing hole and the fourth shaft pin hole.
The utility model is further improved in that a plurality of second shaft pin holes are formed in the side plate, each joint is provided with a positioning piece, each positioning piece is provided with a positioning hole, and each joint can be locked on the side plate through the second shaft pin, the positioning holes and the second shaft pin holes.
As a further improvement of the utility model, the insulating tray is made of bakelite.
Drawings
FIG. 1 is a structural view of the present embodiment;
fig. 2 is a structural diagram of the tested antenna combiner of the present embodiment when placed on the test fixture;
FIG. 3 is a structural diagram of the adapter of the present embodiment;
FIG. 4 is a structural diagram of the grounding copper block of the present embodiment;
fig. 5 is a structural view of the link of the present embodiment.
In the figure:
1. a base plate; 2. a side plate; 3. a grounding copper block; 31. a ground path; 32. a support groove; 33. a screw hole; 4. a transmission line; 5. a ground screw; 6. a joint; 7. a cable; 8. a stepped configuration; 9. positioning plates; 10. a pressing seat; 11. a connecting rod; 12. briquetting; 13. a pin; 14. a semicircular groove.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1-5, the intermodulation test fixture for the antenna combiner of the present embodiment includes an insulating tray, a plurality of switching portions and each switching portion of the adapter includes a grounding copper block 3 and a transmission line 4 which are arranged on the insulating tray, a grounding channel 31 for a cable connector on the antenna combiner to be tested to pass through is arranged on each grounding copper block 3, each adapter includes a connector 6 and a cable 7, each connector 6 is arranged on the insulating tray, one end of each cable 7 is arranged in the connector, and the other end is electrically connected with the grounding copper block 3 and the transmission line 4.
In the implementation process of this embodiment, when the intermodulation index test of the product is performed, the antenna combiner to be tested is placed on the insulating tray and pushed forward stably, so that each cable joint of the antenna combiner to be tested passes through the grounding channel 31, and the cable of the antenna combiner to be tested is grounded by fastening with the silver-plated screws; and then each cable connector is electrically connected with the transmission line 4 (wire connection, thread fastening and crimping process and other modes can be realized). Because one end of each cable 7 is arranged in the interface, and the other end is already electrically connected with the grounding copper block 3 and the transmission line 4, the tested antenna combiner realizes the test through the grounding copper blocks 3, the transmission lines 4, the joints 6 and the cables 7 as long as the interface is externally connected with the intermodulation index. After the test is finished, the pressing block connecting rod 11 is lifted, the cable connector is separated from the transmission line 4, the cable connector is taken out from the grounding channel 31, and the tested antenna combiner is taken down from the insulating tray. The testing device can test the antenna combiners of different models, and the number of the switching parts and the number of the adapters can be adjusted according to the increase or decrease of the number of the cable connectors on the tested antenna combiner. Wherein, the joint 6 is a standard joint, which reduces the joint expense and plays a role in saving the cost. The arrangement of the insulating tray effectively enables the tested antenna combiner to be stable during testing; the connector 6 and the cable 7 can be kept stable when the tested antenna combiner is tested, so that shaking is avoided, misjudgment of intermodulation indexes caused by unstable contact with intermodulation test equipment is reduced, and the accuracy of the intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved. The testing jig for the antenna combiner with the structure has a simple structure, and can be suitable for testing intermodulation indexes of various antenna combiners; the accuracy of intermodulation indexes is effectively improved; meanwhile, the cable joint of the tested antenna combiner is prevented from being abraded, and the yield is further improved.
This embodiment still includes a plurality of support grooves 32, and every ground connection copper billet 3 is U type structure and every transmission line 4 all is located the U type inslot of ground connection copper billet 3, and every ground connection passageway 31 all sets up on a U type arm of ground connection copper billet 3, every support groove 32 all sets up on another U type arm of ground connection copper billet 3, and the one end homoenergetic that the interface was kept away from to every cable 7 can pass support groove 32 and with ground connection copper billet 3 and transmission line 4 welding. The grounding channel 31 and the supporting groove 32 are respectively positioned at two sides of the grounding copper block 3. The support groove 32 supports the cable 7.
The embodiment further comprises a plurality of grounding screws 5, each grounding copper block 3 is provided with a screw hole 33 communicated with the grounding channel 31, and each grounding screw 5 can penetrate through the screw hole 33 to the grounding channel 31 in a threaded manner. After the cable joint of the tested antenna combiner passes through the grounding channel 31, each grounding screw 5 penetrates through the screw hole 33 to the grounding channel 31 and contacts with the cable joint, so that the tested antenna combiner is further stably grounded, misjudgment of intermodulation indexes caused by unstable contact of the cable joint and the transmission line 4 is reduced, and the accuracy is further improved. Wherein, the grounding screw 5 is a silver-plated brass screw, thereby further ensuring the good grounding of the tested antenna combiner.
This embodiment still includes pin 13, the setting compresses tightly seat 10 and the articulated connecting rod 11 that sets up on insulating tray and compresses tightly seat 10 and connecting rod 11 corresponding, a plurality of switching portions all are located and compress tightly between seat 10 and the connecting rod 11 and every transmission line 4 all is located the below of connecting rod 11, it is provided with first compaction hole on the seat 10 to compress tightly, be provided with the second compaction hole on the free end of connecting rod 11, pin 13 can pass first compaction hole and second compaction hole and lock the free end of connecting rod 11 on compressing tightly seat 10, all be provided with briquetting 12 and all be provided with semicircular groove 14 on every briquetting 12 on connecting rod 11 and the position that every transmission line 4 corresponds. Each cable joint of the tested antenna combiner passes through the grounding channel 31, and the tested antenna combiner is grounded; then, the connecting rod 11 is rotated and the pin 13 can pass through the first pressing hole and the second pressing hole to lock the free end of the connecting rod 11 on the pressing seat 10, and each semicircular groove 14 is contacted with the cable connector and can press the cable connector on the transmission line 4, so that the cable connector is electrically connected with the transmission line 4. And after the test is finished, the pin 13 is taken out, and the connecting rod 11 is lifted. After the cable joint is tightly pressed on the transmission line 4, the intermodulation index of the tested antenna combiner can be accurately tested, the misjudgment of the intermodulation index caused by unstable contact of the cable joint and the transmission line 4 is reduced, and the accuracy is further improved. Wherein, the pressing block 12 may be made of PTFE material.
The insulating tray of this embodiment includes threaded connection's bottom plate 1 and curb plate 2, and a plurality of ground connection copper billet 3 and transmission line 4 all set up on bottom plate 1 and a plurality of ground connection copper billet 3 and transmission line 4 are in same perpendicular, and a plurality of joints 6 all set up on curb plate 2 and a plurality of joints 6 are in same perpendicular, and every ground connection copper billet 3, transmission line 4 and joint 6 all are in same horizontal plane.
The end of the bottom plate 1 away from the side plate 2 in this embodiment is provided with a step-shaped structure 8. When the performance test is carried out, the tested antenna combiner is placed at the step-shaped structure 8 at one end of the bottom plate 1.
The bottom plate 1 of this embodiment is provided with the fifth pin hole, is provided with the first axle pin hole on the curb plate 2, and curb plate 2 can be through first axle pin, first axle pin hole and fifth pin hole locking on bottom plate 1.
The bottom plate 1 of this embodiment is provided with a plurality of third axle pinholes and fourth axle pinhole, all is provided with the connecting hole on every ground connection copper billet 3 and every ground connection copper billet 3 homoenergetic is locked on bottom plate 1 through third pivot, connecting hole and third axle pinhole, all is provided with the fixed orifices on every transmission line 4 and every ground connection copper billet 3 homoenergetic is locked on bottom plate 1 through fourth pivot, fixed orifices and fourth axle pinhole.
The curb plate 2 of this embodiment is provided with a plurality of second axle pin holes, all is provided with spacer 9 and all is provided with the locating hole on every spacer 9 on every connects 6, and every connects 6 homoenergetic and passes through second axle pin, locating hole and second axle pin hole locking on curb plate 2.
The insulating tray of this embodiment is bakelite material.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an intermodulation test fixture for antenna combiner which characterized in that: including insulating tray, a plurality of switching portion and adapter, every switching portion all is including setting up ground connection copper billet (3) and transmission line (4) on insulating tray, every all be provided with on ground connection copper billet (3) and supply to be measured cable joint on the antenna combiner and pass ground connection passageway (31), every the adapter all sets up on insulating tray including joint (6) and cable (7) and every joint (6), every the one end of cable (7) all sets up in the joint, the other end all is connected with ground connection copper billet (3) and transmission line (4) electricity.
2. The intermodulation test fixture for an antenna combiner of claim 1, wherein: still include a plurality of support grooves (32), every ground connection copper billet (3) are U type structure and every transmission line (4) all are located the U type inslot of ground connection copper billet (3), every ground connection passageway (31) all set up on a U type arm of ground connection copper billet (3), every support groove (32) all set up on another U type arm of ground connection copper billet (3), every one end homoenergetic that interface was kept away from in cable (7) is passed and is supported groove (32) and with ground connection copper billet (3) and transmission line (4) welding.
3. The intermodulation test fixture for an antenna combiner of claim 2, wherein: the grounding copper block is characterized by further comprising a plurality of grounding screws (5), each grounding copper block (3) is provided with a screw hole (33) communicated with the grounding channel (31), and each grounding screw (5) can penetrate through the screw hole (33) to the inside of the grounding channel (31) in a threaded mode.
4. The intermodulation test fixture for an antenna combiner of claim 1, wherein: still include pin (13), set up compressing tightly seat (10) and articulated connecting rod (11) that set up on insulating tray and compress tightly seat (10) and connecting rod (11) corresponding, it is a plurality of the switching portion all is located and compresses tightly between seat (10) and connecting rod (11) and every transmission line (4) all is located the below of connecting rod (11), it is provided with first compaction hole, is provided with the second compaction hole on the free end of connecting rod (11) to compress tightly seat (10), pin (13) can pass first compaction hole and second compaction hole and lock the free end of connecting rod (11) on compressing tightly seat (10), all be provided with briquetting (12) and all be provided with semicircular groove (14) on every briquetting (12) on connecting rod (11) and the position that every transmission line (4) correspond.
5. The intermodulation test fixture for an antenna combiner of claim 1, wherein: insulating tray includes threaded connection's bottom plate (1) and curb plate (2), and is a plurality of ground connection copper billet (3) and transmission line (4) all set up on bottom plate (1) and a plurality of ground connection copper billet (3) and transmission line (4) are in same perpendicular, and are a plurality of joint (6) all set up on curb plate (2) and a plurality of joint (6) are in same perpendicular, every ground connection copper billet (3), transmission line (4) and joint (6) all are in same horizontal plane.
6. The intermodulation test fixture for an antenna combiner of claim 5, wherein: and a step-shaped structure (8) is arranged at one end of the bottom plate (1) far away from the side plate (2).
7. The intermodulation test fixture for an antenna combiner of claim 5, wherein: the bottom plate (1) is provided with a fifth pin hole, the side plate (2) is provided with a first pin hole, and the side plate (2) can be locked on the bottom plate (1) through the first pin, the first pin hole and the fifth pin hole.
8. The intermodulation test fixture for an antenna combiner of claim 5, wherein: be provided with a plurality of third axle pinhole and fourth axle pinhole on bottom plate (1), every all be provided with connecting hole and every ground connection copper billet (3) homoenergetic on ground connection copper billet (3) and lock on bottom plate (1) through third axle pivot, connecting hole and third axle pinhole, every all be provided with fixed orifices and every ground connection copper billet (3) homoenergetic on transmission line (4) and lock on bottom plate (1) through fourth axle pivot, fixed orifices and fourth axle pinhole.
9. The intermodulation test fixture for an antenna combiner of claim 5, wherein: the side plate (2) is provided with a plurality of second shaft pin holes, each joint (6) is provided with a positioning piece (9), each positioning piece (9) is provided with a positioning hole, and each joint (6) can be locked on the side plate (2) through a second shaft pin, the positioning holes and the second shaft pin holes.
10. The intermodulation test fixture for an antenna combiner of claim 1, wherein: the insulating tray is made of bakelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923656.9U CN216351003U (en) | 2021-11-25 | 2021-11-25 | Intermodulation test fixture for antenna combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122923656.9U CN216351003U (en) | 2021-11-25 | 2021-11-25 | Intermodulation test fixture for antenna combiner |
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| Publication Number | Publication Date |
|---|---|
| CN216351003U true CN216351003U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122923656.9U Active CN216351003U (en) | 2021-11-25 | 2021-11-25 | Intermodulation test fixture for antenna combiner |
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| CN (1) | CN216351003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298555A (en) * | 2023-05-19 | 2023-06-23 | 佛山市波谱达通信科技有限公司 | Wide-band antenna test system and application method thereof |
| CN116520137A (en) * | 2023-06-27 | 2023-08-01 | 北京智芯微电子科技有限公司 | Low-noise chip pin interference measurement auxiliary device and measurement system |
-
2021
- 2021-11-25 CN CN202122923656.9U patent/CN216351003U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298555A (en) * | 2023-05-19 | 2023-06-23 | 佛山市波谱达通信科技有限公司 | Wide-band antenna test system and application method thereof |
| CN116298555B (en) * | 2023-05-19 | 2023-08-18 | 佛山市波谱达通信科技有限公司 | Wide-band antenna test system and application method thereof |
| CN116520137A (en) * | 2023-06-27 | 2023-08-01 | 北京智芯微电子科技有限公司 | Low-noise chip pin interference measurement auxiliary device and measurement system |
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