CN213813791U - S, PIM parameter public test jumper wire - Google Patents
S, PIM parameter public test jumper wire Download PDFInfo
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- CN213813791U CN213813791U CN202021443329.2U CN202021443329U CN213813791U CN 213813791 U CN213813791 U CN 213813791U CN 202021443329 U CN202021443329 U CN 202021443329U CN 213813791 U CN213813791 U CN 213813791U
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Abstract
The utility model discloses a S, PIM public test wire jumper of parameter, include: the interface connection shell, the cable connection shell, and the contact pin and the radio frequency coaxial cable which are connected in sequence; the contact pin is sleeved with an insulating sleeve, and the tail end of the radio frequency coaxial cable is sleeved with a pipeline type positioning piece; the interface connecting shell is sleeved on the insulating sleeve, a first connecting limiting block is arranged at the tail end of the pipeline type positioning piece corresponding to the insulating sleeve, and the cable connecting shell is connected with the interface connecting shell corresponding to the first connecting limiting block; the head end of the contact pin is provided with a slot, and a wire core of the radio frequency coaxial cable is inserted into the slot and is in seamless connection with the contact pin. The utility model has reasonable and ingenious structural design, simple structure, strong loss resistance performance and wide applicable frequency, is suitable for the transmission and acquisition of S, PIM parameters, can realize the public use of S, PIM parameters, and can not cause the distortion of S, PIM parameters due to the loss resistance or the substandard intermodulation index; in addition, the production cost is effectively reduced, and the product assembly flow is simplified.
Description
Technical Field
The utility model relates to a radio frequency test wire jumper technical field, concretely relates to S, PIM public test wire jumper of parameter.
Background
At present, a PIM + S parameter tester capable of measuring both an intermodulation index and an S parameter index of a passive device is introduced in the market, wherein the PIM parameter is worth of the intermodulation index, and the S parameter refers to a scattering parameter, which are important parameters in a radio frequency test.
The jumper wire available for radio frequency test in the market has two types, one is a braided high-frequency coaxial cable for testing signal loss, and the other is a corrugated pipe cable for testing intermodulation index, but for the braided cable, the performance of the whole base station is lowered due to the fact that intermodulation does not meet corresponding requirements, interference and loss are increased, the transmission quality of signals and the transmission performance of the base station are reduced, and the corrugated pipe cable is poor in flexibility;
when a passive device product is tested, the PIM + S parameter tester needs to be connected with the product by two test lines respectively, the steps are complicated, and the convenience body for measuring two parameters simultaneously by the PIM + S parameter tester cannot be presented well; furthermore, the market urgently needs a test jumper wire with S, PIM parameter public.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a common test wire jumper of S, PIM parameter.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
an S, PIM parameter utility test jumper comprising: the interface connection shell, the cable connection shell, and the contact pin and the radio frequency coaxial cable which are connected in sequence; the contact pin is sleeved with an insulating sleeve, and the tail end of the radio frequency coaxial cable is sleeved with a pipeline type positioning piece; the interface connecting shell is sleeved on the insulating sleeve, a first connecting limiting block is arranged at the tail end of the pipeline type positioning piece corresponding to the insulating sleeve, and the cable connecting shell is connected with the interface connecting shell corresponding to the first connecting limiting block; the head end of the contact pin is provided with a slot, and a wire core of the radio frequency coaxial cable is inserted into the slot and is in seamless connection with the contact pin.
And the outer wall surface of the contact pin is also provided with a through welding hole communicated with the slot.
The socket connecting shell extends along the axial direction of the contact pin to form an anti-interference sleeve surrounding the contact pin.
The radio frequency coaxial cable is sequentially provided with a wire core, an insulating woven layer and an outer sheath from inside to outside, the tail end of the insulating woven layer extends out of the tail end of the outer sheath to form an insulating exposed section, and the tail end of the wire core extends out of the tail end of the insulating woven layer to form a wire core exposed section; the pipeline type positioning piece is sleeved on the insulating exposed section corresponding to the outer sheath.
The head end of the pipeline type positioning piece corresponds to the outer protective sleeve and is provided with a second connecting limiting block.
The wire core exposed section is inserted into the slot and is in seamless connection with the contact pin; and the tail end of the contact pin is also provided with an insulating gasket corresponding to the insulating exposed section.
And a bushing sleeved on the insulating gasket is further arranged between the insulating sleeve and the first connecting limiting block.
The interface connecting shell is provided with an internal thread connecting part, and the cable connecting shell is provided with an external thread connecting part; the cable connecting shell corresponds to the internal thread connecting portion and is connected with the interface connecting shell through the external thread connecting portion.
It also comprises a threaded sleeve; a first snap ring accommodating groove is formed in the interface connecting shell, and a second snap ring accommodating groove is formed in the inner wall of the threaded sleeve corresponding to the first snap ring accommodating groove; and the compression snap ring is arranged in the first snap ring accommodating groove and the second snap ring accommodating groove to ensure that the threaded sleeve is movably connected with the interface connection shell.
The contact pin is a beryllium bronze contact pin, and the wire core is a beryllium bronze wire core.
The utility model has the advantages that: the utility model has reasonable and ingenious structural design, simple structure, strong loss resistance performance and wide applicable frequency, is suitable for the transmission and acquisition of S, PIM parameters, can realize the public use of S, PIM parameters, and can not cause the distortion of S, PIM parameters due to the loss resistance or the substandard intermodulation index; the wire core is inserted into the slot and is in seamless connection with the contact pin, so that the contact area of the contact pin and the wire core is increased to the maximum extent on the premise of not increasing the diameter of the wire core, and the loss resistance of the product is improved; in addition, the tail end of the pipeline type positioning piece can be correspondingly clamped with the connecting shell through the first connecting limiting block; and after the interface connection shell and the cable connection shell are connected, the complete positioning of the wire core and the contact pin is realized, an additional positioning mechanism is not required, and additional welding and other connecting processes are not required, so that the production cost of the product is effectively reduced, and the product assembly flow is simplified.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a perspective view of an S, PIM parameter utility test jumper in an embodiment of the invention;
fig. 2 is a schematic diagram of an internal structure of an S, PIM parameter common test jumper according to an embodiment of the present invention;
fig. 3 is an exploded view of an S, PIM parameter common test jumper according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pin, a radio frequency coaxial cable, an insulating sleeve, and a pipe type positioning element in an embodiment of the present invention;
FIG. 5 is a schematic view of the connection between the threaded sleeve and the interface connection housing according to an embodiment of the present invention;
fig. 6 is a loss test chart of an S, PIM parameter common test jumper in an embodiment of the present invention;
fig. 7 is an intermodulation test chart of an S, PIM-parameter common test jumper at an input frequency of 900Mhz according to an embodiment of the present invention.
Detailed Description
An embodiment, the utility model discloses mainly used combines together the pin of paster component and the pad that moves the looks ware through melting cooling of solder to the welding that moves the looks ware, realizes the automatic weld to moving the looks ware.
Referring to fig. 1 to 7, the present embodiment provides an S, PIM parameter common test jumper, including: the interface comprises an interface connecting shell 1, a cable connecting shell 2, a contact pin 3 and a radio frequency coaxial cable 4 which are connected in sequence; an insulating sleeve 5 is sleeved on the contact pin 3, and a pipeline type positioning piece 6 is sleeved at the tail end of the radio frequency coaxial cable 4; the interface connecting shell 1 is sleeved on the insulating sleeve 5, the tail end of the pipeline type positioning piece 6 is provided with a first connecting limiting block 61 corresponding to the insulating sleeve 5, and the cable connecting shell 2 is connected with the interface connecting shell 1 corresponding to the first connecting limiting block 61; the head end of the pin 3 is provided with a slot 31, and a wire core 41 of the radio frequency coaxial cable 4 is inserted into the slot 31 and is in seamless connection with the pin 3.
Specifically, the wire core 41 is inserted into the slot 31 and is connected with the pin 3 without a gap, so that the contact area between the pin 3 and the wire core 41 is increased to the maximum extent on the premise of not increasing the diameter of the wire core 41, and the loss resistance of the product is improved on the premise of ensuring the economic principle.
Meanwhile, due to seamless connection, a tiny punctured gap cannot be formed, namely, the transmission of signals cannot intervene in other media except the contact pin 3 and the wire core 41, intermodulation is effectively reduced, and the method and the device can be suitable for a wider frequency band. Therefore, S, PIM parameters can be shared, and S, PIM parameters are not distorted due to loss resistance or unqualified intermodulation indexes.
Meanwhile, the rigidity of the product used for connecting products or connecting interface parts is ensured through the connection of the cable connecting shell 2 and the interface connecting shell 1, the stability of the internal structure and the space of the product is ensured, and the performance parameters of the product when connecting each device are effectively ensured to be unchanged.
And insulating sleeve 5's setting separates contact pin 3 and cable junction casing 2, avoids contact of contact pin 3 and cable junction casing 2 to cause the intermodulation increase, can't satisfy the test demand.
The traditional connection mode of the wire core 41 and the contact pin 3 is generally provided with a hollow spare position or gap, so that air is broken down to form a signal propagation medium, and the product effectively solves the problem, thereby greatly improving the loss resistance performance, effectively reducing intermodulation and being suitable for wider frequency bands.
Further, the insulating sleeve 5 includes an upper positioning section 51 with a smaller cross-sectional diameter and a lower isolating section 52 with a larger cross-sectional diameter, and the upper positioning section 51 and the lower isolating section 52 are tightly fitted with the pin 3. The advantage is through the great lower part isolation section 52 of cross-sectional diameter, has increased the whole footpath width of interface connection casing 1, can reduce the interference of outside to contact pin 3 better, reduces the interference of outside to transmission signal promptly, increases the interference killing feature of this product.
The outer wall surface of the pin 3 is also provided with a through welding hole 32 communicated with the slot 31.
Specifically, the through-welding holes 32 are formed, so that the welding material can be melted into the slot 31 through a precision welding technology such as high-frequency induction welding, and gaps between the wire core 41 and the contact pin 3 are filled, and seamless connection is realized. The solder material here may be tin or beryllium bronze.
The socket connection housing 1 has an anti-interference sleeve 11 extending axially along the pin 3 and surrounding the pin 3.
In particular, since the socket connection housing 1 is made of metal or alloy material for meeting the rigidity requirement, some of the materials also have ferromagnetism, and the ferromagnetism has a great influence on the intermodulation. The anti-interference sleeve 11 is arranged to isolate interference of the socket connection housing 1 to the pin 3.
Further, the anti-interference sleeve 11 is a magnetizer.
The radio frequency coaxial cable 4 is sequentially provided with a wire core 41, an insulating braided layer 42 and an outer sheath 43 from inside to outside, the tail end of the insulating braided layer 42 extends out of the tail end of the outer sheath 43 to form an insulating exposed section, and the tail end of the wire core 41 extends out of the tail end of the insulating braided layer 42 to form a wire core 41 exposed section; the pipeline type positioning piece 6 is sleeved on the insulating exposed section corresponding to the outer sheath 43.
The head end of the pipe-type positioning piece 6 is provided with a second connection limiting block 62 corresponding to the outer sheath 43.
Specifically, the core 41, the insulating braid 42, and the outer sheath 43 are all available for the conventional rf coaxial cable 4, and will not be described in detail herein; the tail end of the insulating braided layer 42 at one end for connection extends out of the tail end of the outer sheath 43 to form an insulating exposed section, and the tail end of the wire core 41 extends out of the tail end of the insulating braided layer 42 to form an exposed section of the wire core 41; the pipeline-type positioning piece 6 is sleeved on the insulation exposed section corresponding to the outer sheath 43, so that the head end of the pipeline-type positioning piece 6 can be clamped corresponding to the outer sheath 43 of the radio frequency coaxial cable 4 through the second connection limiting block 62, and the tail end of the pipeline-type positioning piece 6 can be clamped corresponding to the connection shell through the first connection limiting block 61; after the interface connection shell 1 and the cable connection shell 2 are connected, the complete positioning of the wire core 41 and the contact pin 3 is realized, an additional positioning mechanism is not needed, and additional welding and other connection processes are not needed, so that the production cost of the product is effectively reduced.
The exposed section of the wire core 41 is inserted into the slot 31 and is in seamless connection with the pin 3; and the tail end of the contact pin 3 is also provided with an insulating gasket 7 corresponding to the insulating exposed section.
Specifically, because insulating braid 42 may have copper, can electrically conduct, through the setting of insulating gasket 7, can avoid electric charge to puncture the air, contact pin 3 uses the air to make contact with insulating braid 42 as the medium, causes unnecessary hidden danger.
And a bushing 8 sleeved on the insulating gasket 7 is further arranged between the insulating sleeve 5 and the first connecting limiting block 61.
Specifically, because the production and manufacturing of the insulating sleeves 5 are relatively difficult, for the contact pins 3 with different specifications and sizes, it is difficult to configure the insulating sleeves 5 with corresponding specifications and sizes one by one; furthermore, in view of the simpler structure of the bushing 8, the conventional cylindrical bushing is more convenient to manufacture, and the bushing 8 is provided with a plurality of replaceable models for assembling the product together with the insulating sleeve 5.
The interface connecting shell 1 is provided with an internal thread connecting part, and the cable connecting shell 2 is provided with an external thread connecting part; the cable connecting shell 2 corresponds to the internal thread connecting portion and is connected with the interface connecting shell 1 through the external thread connecting portion.
Specifically, the interface connection housing 1 and the cable connection housing 2 are connected through threads and screwed to the first connection limiting block 61, so that the connection and positioning of the product are realized.
It also comprises a threaded sleeve 9; a first snap ring accommodating groove 12 is further formed in the interface connection shell 1, and a second snap ring accommodating groove 91 is formed in the inner wall of the threaded sleeve 9 corresponding to the first snap ring accommodating groove 12; a compression snap ring 13 is disposed in the first snap ring receiving groove 12 and the second snap ring receiving groove 91 to movably connect the threaded sleeve 9 with the interface connection housing 1.
Specifically, swivel nut 9 is used for being connected fixedly this product with standard interface, and wherein compression snap ring 13's setting for swivel nut 9 can make the rotatory slip of self, can not drive this product the rest and rotate in step when rotatory, avoids excessive twist to influence the performance of this product. Meanwhile, the compression snap ring 13 brings good damping feeling to the rotation of the threaded sleeve 9, on one hand, the rotation of the threaded sleeve 9 is better in hand feeling, on the other hand, unnecessary sliding cannot be generated between the threaded sleeve 9 and the interface connection shell 1 under the condition of not receiving external force, and the use stability of the product is improved.
The contact pin 3 is a beryllium bronze contact pin 3, and the wire core 41 is a beryllium bronze wire core 41.
In particular, it was found during testing that the level of intermodulation generated increases when either pin 3 or core 41 is made of ferromagnetic material (e.g., steel, nickel, cobalt, etc.). And because the contact pin 3 and the wire core 41 of the product are made of the same metal material (beryllium bronze), the intermodulation level can be further reduced.
Further, during the test, the longer the cable length is, the better the inhibition effect on the large signal of the tested piece can be generated, and further, in this embodiment, the length of the radio frequency coaxial cable 4 is at least 100 cm.
In conclusion, the product has strong loss resistance and wide applicable frequency, is suitable for S, PIM parameter transmission acquisition, can realize the public use of S, PIM parameters, and cannot cause the distortion of S, PIM parameters due to loss resistance or unqualified intermodulation indexes.
In the product detection and verification stage, a loss test, an intermodulation test of 900Mhz input frequency, an intermodulation test of 1800Mhz input frequency and an intermodulation test of 2100Mhz input frequency are respectively carried out;
referring to fig. 6, the loss test chart of the present invention shows that the loss resistance performance is good;
referring to fig. 7, it can be seen that (F1, F2 represent the actual frequencies of two different input signals), the product has an input 900Mhz input frequency, F1Max 914Mhz, dbc-169.86, dbm-126.86, F1Min 911Mhz, dbc-175.934, dbm-132.934, F2Max 911Mhz, dbc-172.107, dbm-129.107, F2Min 912Mhz, dbc-178.131, and dbm-135.131; wherein the comprehensive maximum value is-126.86 dbm.
In addition, under the input of 1800Mhz frequency (F1 and F2 represent actual frequencies of two different input signals), when the 1800Mhz input frequency is input, F1Max 1740Mhz, dbc-168.059, dbm-125.059, F1Min 1770Mhz, dbc-176.874, dbm-133.874, F2Max 1755Mhz, dbc-169.942, dbm-169.942, F2Min 1750Mhz, dbc-181.154 and dbm-138.154; wherein the comprehensive maximum value is-125.059 dbm.
In addition, at the input 2100Mhz frequency (F1, F2 represent the actual frequencies of two different input signals), when the 2100Mhz input frequency is input, F1Max is 2059Mhz, dbc is-168.867, dbm is-125.867, F1Min is 2058Mhz, dbc is-182.972, dbm is-139.972, F2Max is 2054Mhz, dbc is-168.064, dbm is-125.064, F2Min is 2052Mhz, dbc is-178.576, and dbm is-135.576; wherein the comprehensive maximum value is-125.064 dbm.
The loss resistance, the frequency width and the intermodulation index of the product can be verified to reach the test transmission standard of PIM parameters and S parameters.
When the device is used, one end of the pin 3 of the device is inserted into a connecting hole of a tested piece, the pin is screwed tightly through the threaded sleeve 9, the other end of the device is connected with the PIM + S parameter tester, and the test of the PIM parameters and the S parameters of the tested piece can be realized.
The utility model has reasonable and ingenious structural design, simple structure, strong loss resistance performance and wide applicable frequency, is suitable for the transmission and acquisition of S, PIM parameters, can realize the public use of S, PIM parameters, and can not cause the distortion of S, PIM parameters due to the loss resistance or the substandard intermodulation index; the wire core 41 is inserted into the slot 31 and is in seamless connection with the pin 3, so that the contact area between the pin 3 and the wire core 41 is increased to the maximum extent on the premise of not increasing the diameter of the wire core 41, and the loss resistance of the product is improved; in addition, the tail end of the pipeline type positioning piece 6 can be correspondingly clamped with the connecting shell through the first connecting limiting block 61; after the interface connection shell 1 and the cable connection shell 2 are connected, the complete positioning of the wire core 41 and the contact pin 3 is realized, an additional positioning mechanism is not needed, and additional welding and other connection processes are not needed, so that the production cost of the product is effectively reduced, and the product assembly flow is simplified.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. An S, PIM parameter utility test jumper comprising: the interface connection shell, the cable connection shell, and the contact pin and the radio frequency coaxial cable which are connected in sequence;
the contact pin is sleeved with an insulating sleeve, and the tail end of the radio frequency coaxial cable is sleeved with a pipeline type positioning piece;
the interface connecting shell is sleeved on the insulating sleeve, a first connecting limiting block is arranged at the tail end of the pipeline type positioning piece corresponding to the insulating sleeve, and the cable connecting shell is connected with the interface connecting shell corresponding to the first connecting limiting block;
the head end of the contact pin is provided with a slot, and a wire core of the radio frequency coaxial cable is inserted into the slot and is in seamless connection with the contact pin.
2. The S, PIM parameter utility test jumper of claim 1, wherein the pin has a through-hole in the outer wall that communicates with the slot.
3. The S, PIM parametric utility test jumper of claim 1, wherein the interface connection housing has a tamper resistant sleeve extending axially around the pin.
4. The S, PIM parameter public test jumper of claim 1, wherein the RF coaxial cable is provided with a wire core, an insulating braid and an outer sheath from inside to outside,
the tail end of the insulating braid extends out of the tail end of the outer sheath to form an insulating exposed section, and the tail end of the wire core extends out of the tail end of the insulating braid to form a wire core exposed section;
the pipeline type positioning piece is sleeved on the insulating exposed section corresponding to the outer sheath.
5. The S, PIM parameter public test jumper wire of claim 4, wherein the head end of the pipe-type positioning piece is sleeved with a second connection limiting block corresponding to the outer sheath.
6. The S, PIM parameter utility test jumper of claim 5, wherein the core exposed segment is inserted into the slot in seamless connection with the pin;
and the tail end of the contact pin is also provided with an insulating gasket corresponding to the insulating exposed section.
7. The S, PIM parameter utility test jumper of claim 6, wherein a bushing is disposed between the insulation sleeve and the first connection limiting block and sleeved on the insulation spacer.
8. The S, PIM parameter utility test jumper of claim 1, wherein the interface connection housing is provided with an internal threaded connection, and the cable connection housing is provided with an external threaded connection;
the cable connecting shell corresponds to the internal thread connecting portion and is connected with the interface connecting shell through the external thread connecting portion.
9. The S, PIM parameter utility test jumper of claim 1, further comprising a threaded sleeve;
a first snap ring accommodating groove is formed in the interface connecting shell, and a second snap ring accommodating groove is formed in the inner wall of the threaded sleeve corresponding to the first snap ring accommodating groove;
and the compression snap ring is arranged in the first snap ring accommodating groove and the second snap ring accommodating groove to ensure that the threaded sleeve is movably connected with the interface connection shell.
10. The S, PIM parameter utility test jumper of claim 1, wherein the pins are beryllium bronze pins and the core is a beryllium bronze core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443329.2U CN213813791U (en) | 2020-07-21 | 2020-07-21 | S, PIM parameter public test jumper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443329.2U CN213813791U (en) | 2020-07-21 | 2020-07-21 | S, PIM parameter public test jumper wire |
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| Publication Number | Publication Date |
|---|---|
| CN213813791U true CN213813791U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021443329.2U Active CN213813791U (en) | 2020-07-21 | 2020-07-21 | S, PIM parameter public test jumper wire |
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|---|---|
| CN (1) | CN213813791U (en) |
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- 2020-07-21 CN CN202021443329.2U patent/CN213813791U/en active Active
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