CN209119289U - Novel coaxial load - Google Patents
Novel coaxial load Download PDFInfo
- Publication number
- CN209119289U CN209119289U CN201821953983.0U CN201821953983U CN209119289U CN 209119289 U CN209119289 U CN 209119289U CN 201821953983 U CN201821953983 U CN 201821953983U CN 209119289 U CN209119289 U CN 209119289U
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- China
- Prior art keywords
- assembly hole
- carrier sheet
- claw
- pawl spring
- coaxial load
- Prior art date
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- 239000004020 conductor Substances 0.000 claims abstract description 81
- 238000009434 installation Methods 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 229910017083 AlN Inorganic materials 0.000 claims description 6
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 6
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 claims description 3
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000004697 Polyetherimide Substances 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229920001601 polyetherimide Polymers 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BSPSZRDIBCCYNN-UHFFFAOYSA-N phosphanylidynetin Chemical compound [Sn]#P BSPSZRDIBCCYNN-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004727 Noryl Substances 0.000 description 1
- 229920001207 Noryl Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- -1 metallic ground Area Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model discloses a kind of coaxial loads comprising: shell is inside formed with installation cavity；Inner housing is assembled in the installation cavity, is inside formed with inner cavity；The carrier sheet being assembled on rear side of the inner cavity of the inner housing；The connection component being assembled on front side of the inner cavity of the inner housing, it includes inner conductor, is sheathed on the inner conductor and is immobilizated in the inner housing the insulation sleeve on inner wall and be assembled in the inner conductor inner end elastic conductor contact, wherein the inner conductor is electrical connected by the elastic conductor contact and one end of the carrier sheet；Be assembled in the installation cavity and be placed on the inner housing rear side on sheath body.The sheath body is assembled in the installation cavity of shell, so that the length of coaxial load is mainly determined by the length of shell, thus reduced entire length.
Description
Technical field
The utility model relates to arrive coaxial load field, specifically, being related specifically to a kind of novel coaxial load.
Background technique
Coaxial load is mainly used for absorbing the power of radio frequency or microwave system, and fictitious load and the transmitter that can be used as antenna are whole
End, can also be used as the matching port of multiport microwave device such as circulator, directional coupler, to guarantee that characteristic impedance obtains
Matching carries out precise measurement.Previous coaxial load is since shape is too long and high frequency electrical performance is bad, according to this configuration
Coaxial load is unable to satisfy the monnolithic case requirement to system or multiport device, and wants to the test of high frequency 18GHz or more
It asks, and the index in electric property, such as standing-wave ratio are excessive, causes mismatch excessive, it will measurement result is generated biggish
Error.
A kind of existing coaxial load is always about 24.4mm, and length is too long, it is made to there is certain limitation in use, can not
Meet the requirement of monnolithic case.The 2.4 coaxial load shell is that former and later two parts are linked together with screw thread, therefore is difficult
Entire length is further reduced under this structure.
In conclusion in view of the drawbacks of the prior art, it is accordingly required in particular to a kind of improvement coaxial load, to solve the prior art
It is insufficient.
Utility model content
The purpose of this utility model is to provide a kind of loads of novel coaxial, it is intended to meet high-frequency test requirement, reduce knot
Structure size.
In order to solve the above technical problems, the utility model can be realized using following technical scheme:
A kind of coaxial load comprising: shell is inside formed with installation cavity；It is empty to be assembled in the installation for inner housing
It is intracavitary, inside it is formed with inner cavity；The carrier sheet being assembled on rear side of the inner cavity of the inner housing；It is assembled in the inner cavity of the inner housing
The connection component of front side comprising exhausted on inner conductor, the inner wall for being sheathed on the inner conductor and being immobilizated in the inner housing
Edge covers and is assembled in the elastic conductor contact of the inner end of the inner conductor, wherein the inner conductor connects by the elastic conductor
One end of contact element and the carrier sheet is electrical connected；Be assembled in the installation cavity and be placed on the rear side of the inner housing
On sheath body.
In a preferred embodiment, the coaxial load further includes snap ring and swivel nut, and the snap ring is sheathed on institute
It states in the groove of shell, the swivel nut is sheathed on the outside of the shell by the snap ring, wherein the inner conductor is in sun
Conductor.
In a preferred embodiment, there are two corresponding card slot, the loads for setting on the inner wall of the inner housing
The two sides of piece are inserted into and are immobilizated in the card slot and are electrically connected with the card slot wall.
In a preferred embodiment, the inner conductor is negative inner conductor.
In a preferred embodiment, the elastic conductor contact is pawl spring, and the pawl spring includes head and from institute
Multiple claws mutually with gap that head is extended to form to side are stated, the outside dimensions of the end of the multiple claw is greater than
The outside dimensions on the head, the end of the claw have guide ramp, are formed on the end face of the inner end of the inner conductor
Assembly hole, the head of the pawl spring are placed into the assembly hole, and the end of the claw of the pawl spring is described since size is greater than
Assembly hole and be exposed to outside the assembly hole, the opening edge of the assembly hole along being contacted with the guide ramp of the end of the claw,
The contact face of the claw and one end of the carrier sheet are in electrical contact.
In a preferred embodiment, apply thrust for the pawl spring to the assembling in the contact face of the claw
When pushing away in hole, the guide ramp of the claw guides the pawl spring and enters the assembly hole, and then enables to the pawl spring
The inside elastic deformation of claw, when the thrust applied in the contact face removes, the claw of the pawl spring can restore to the original state
So that the pawl spring exits certain distance out of described assembly hole.
In a preferred embodiment, the head is cylindricality, and the assembly hole is cylindrical hole, the outer diameter of cylindrical head
Less than the assembly hole internal diameter so that the cylindrical head can be freely contained in the assembly hole, the claw
The outer diameter of end is greater than the internal diameter of the assembly hole, and the angular range of the axis direction on the guide ramp and the head is 30
Degree is to 60 degree.
In a preferred embodiment, the carrier sheet include substrate, from the middle part of the first end edge of the substrate to the
Metal electrode area that two end edges extend to form, the metallic ground area for extending first side, the second end edge and second side extend
Film resistor area between metal electrode area and metallic ground area, the film resistor area and metallic ground area, metal electrode area
It is electrical connected, metallic ground area and the inner wall of the core cylinder are electrical connected, metal electrode area and elastic conductor contact electricity
Property be connected.
In a preferred embodiment, the carrier sheet further include: the electricity being formed in the first end face of the substrate
Pole contact zone, the electrode contact zone are electrical connected with the metal electrode area, which contacts with the elastic conductor
Part is electrical connected.
In a preferred embodiment, the part in the formation metal electrode area of the first end edge of the carrier sheet is to second
End edge is recessed to form recessed portion, and two angles positioned at the first end edge in metal electrode area form chamfering, the width in metal electrode area
Greater than the width of recessed portion.
In a preferred embodiment, the material of the substrate is aluminium nitride, aluminium oxide or beryllium oxide, metallic ground
Area, metal electrode area material be TaN, TiW and/or Au, the film resistor area be TaN；The thickness of the substrate is from 0.1mm
To 0.8mm.
Compared with prior art, the utility model has the advantages that the sheath body is assembled in the installation cavity of shell,
So that the length of coaxial load is mainly determined by the length of shell, thus reduced entire length.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the coaxial load with positive inner conductor in the utility model；
Fig. 2 is the schematic diagram of internal structure of the coaxial load with negative inner conductor in the utility model；
Fig. 3 is the assembling schematic diagram of inner conductor, spring and contact cap；
Fig. 4 is the assembling schematic diagram of a state of inner conductor and pawl spring in the utility model, wherein the non-shape of the pawl spring
Become；
Fig. 5 be the utility model in another of inner conductor and pawl spring state assembling schematic diagram, wherein the pawl spring because
External thrust and deformation occurs；
Fig. 6 is the side cross sectional views of pawl spring；
Fig. 7 is the schematic top plan view of pawl spring；
Fig. 8 is the overlooking structure diagram of carrier sheet in one embodiment described in the utility model；
Fig. 9 is the side structure schematic view of the carrier sheet in Fig. 8.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
The utility model provides a kind of coaxial load, and frequency can be from direct current to 50GHz, and certain frequency range can also
To be adjusted as needed.Fig. 1 is the schematic diagram of internal structure of the coaxial load with positive inner conductor in the utility model.
As shown in Figure 1, the coaxial load with positive inner conductor in the utility model includes J shell 7, inner housing 4, load
Piece 9, connection component, sheath body 8, snap ring 5 and swivel nut 1.
Installation cavity is formed in the J shell 7.The inner housing 4 is assembled in the installation cavity, is inside formed with
Inner cavity.The carrier sheet 9 is assembled on rear side of the inner cavity of the inner housing 4.The connection component is assembled in the interior of the inner housing
On front side of chamber.The connection component includes inner conductor 2, is sheathed on the inner conductor 2 and is immobilizated on the inner wall of the inner housing 4
Insulation sleeve 3 and be assembled in the inner conductor 2 inner end elastic conductor contact 6, wherein the inner conductor 2 is by the bullet
Property conductive contact 6 and one end of the carrier sheet 9 are electrical connected.The sheath body 8 is assembled in the installation cavity and is placed on
On the rear side of the inner housing 4.The snap ring 5 is sheathed in the groove of the shell 7, and the swivel nut 1 passes through 5 sets of the snap ring
Set on the outside of the shell 7, wherein the inner conductor 2 is positive inner conductor.
Fig. 2 is the schematic diagram of internal structure of the coaxial load with negative inner conductor in the utility model.As shown in Fig. 2,
The coaxial load with negative inner conductor in the utility model includes K shell 10, inner housing 4, carrier sheet 9, connection component, sheath body
8。
The structure of the coaxial load with positive inner conductor in the coaxial load and Fig. 1 with negative inner conductor in Fig. 2
Difference is: in Fig. 2 there is the coaxial load of negative inner conductor not have snap ring 5 and swivel nut 1, inner conductor 11 is negative inner conductor, outside
The shape of shell 10 is different, remaining structure can refer to mutually substantially.
The insulation sleeve 3 (also referred to as dielectric) is made of PEI (polyetherimide, Polyetherimide),
It is directly processed into the shape of needs with the stable raw material of performance, improves mounting means, improves installation effectiveness and consistency,
Properties of product are stablized.Unstable performance is fabricated to excessively high when heating compared with Noryl castable (PPO) before
Originally it compares, more stable economy.3 mounting means of dielectric is also improved, and original dielectric is cut to after two halves again
The mode of installation is changed to, endless slitting-up dielectric, so that the two halves cut is connected, then be installed on inner conductor 2 and be pressed into
Inner housing 4 distinguishes front and back sides when avoiding installation dielectric 3, different insulative medium 3 will not mix after cutting, pole
The earth improves installation effectiveness.
The sun inner conductor 2 is manufactured using tin-phosphor bronze, and negative inner conductor 11 is manufactured using beryllium-bronze, is not necessarily to nickel plating.Old edition
Positive inner conductor uses brass relatively soft for raw material, needs nickel plating to improve hardness, but nickel can improve loss, therefore is changed to cost phase
The closely higher tin-phosphor bronze of hardness, reduces loss without nickel plating.Negative inner conductor is then adopted to guarantee preferable elasticity simultaneously
With all preferable beryllium-bronze production of consistency and elasticity.The yin inner conductor 11 reduces the size and length of fluting, leads in yin
Body slotting length is smaller compared in the past, and groove width is reduced to 0.1mm, and the performance for effectively improving product in high band refers to
Mark.
As shown in Figure 1, 2, in one embodiment, there are two corresponding card slot, institutes for setting on the inner wall of the inner housing 4
The two sides for stating carrier sheet 9 are inserted into and are immobilizated in the card slot and are electrically connected with the card slot wall.It is excellent at one
In the embodiment of choosing, the two sides of the carrier sheet 9 are welded in the card slot.When installation, by carrier sheet 9 left and right sides gold
Belong to area and coat scaling powder and be stained in the card slot for being packed into inner housing 4 after scolding tin, scolding tin is distributed and uneven in slot at this time, and heating makes
Scolding tin uniformly fills up the card slot of the inner housing 4.This mounting means no longer needs earth clip, therefore carrier sheet is not required to increase two
The width of side metal area facilitates earth clip to install, and reduces carrier sheet width.Scolding tin flowing make carrier sheet 9 and inner housing 4 it
Between cooperation allow some leeway, improve the consistency of installation.
As shown in Figure 1, 2, in one embodiment, the center towards the carrier sheet 9 of the sheath body 8 is provided with
Conical socket 81 can improve the electrical performance indexes of coaxial load in this way.
The shell 10,7 is integral type, and the sheath body 8 is assembled in the installation cavity of shell 10,7, so that coaxial load
Length mainly determined by the length of shell, thus reduced entire length.The shell of integral type does not need as connection front and back in advance
Screw thread is stayed, installation steps are both reduced, also reduces entire length and installation risk.
As shown in Figure 3, in one embodiment, the elastic conductor contact 6 may include spring 61 and contact cap
62.Here the embodiment of spring 61 and contact cap 62 as the elastic conductor contact 6 is first introduced.As shown in Figure 3,
The inner conductor 2 is only displayed for part, and rest part has been not shown, shape on the end face of the end face of the inner end of the inner conductor 2
At there is assembly hole, the spring 61 is placed in the assembly hole, and the contact cap 62 is also assembled into the assembly hole later
It is interior.In this way, if there is external thrust pushes the contact cap 62, then the spring 61 will deformation, if external thrust is removed
It goes, the spring 61 will restore to the original state.The contact surface of the contact cap 62 can be electrically connected with one end of the carrier sheet 9
Touching.However, such mode still has some problems, for example need to be arranged longer assembly hole so that the spring is placed,
Make entire 2 whole length of inner conductor elongated in this way, for another example contact cap 62 contacted with the inner wall of assembly hole there are gap may
Cause performance unstable, contact cap 62 may be easy to be stuck in assembly hole for another example, and the service life is short for another example, and there are two portions for another example
Part, assembling are inconvenient.
The utility model additionally provides a kind of structure more preferably elastic conductor contact 6, i.e. pawl spring.As shown in figs. 4-7, exist
In this embodiment, the elastic conductor contact 6 can be pawl spring, and wherein Fig. 1, the elastic conductor contact 6 in 2 are exactly one
A pawl spring.
Fig. 4 is the assembling schematic diagram of a state of inner conductor 2 and pawl spring 6 in the utility model, wherein the pawl spring is not
Deformation, Fig. 5 be the utility model in another state of inner conductor 2 and pawl spring 6 assembling schematic diagram, wherein the pawl spring 6 because
External thrust and deformation occurs, Fig. 6 be pawl spring side cross sectional views, Fig. 7 be pawl spring schematic top plan view.
The pawl spring 6 includes head 63 and the multiple pawls mutually with gap extended to form from the head 63 to side
Portion 64, the outside dimensions of the end of the multiple claw 64 are greater than the outside dimensions on the head 63, the end of the claw 64
With guide ramp 641.Assembly hole 2001 is formed on the end face of the inner end of the inner conductor 2, the head 63 of the pawl spring 6 is put
It is placed in the assembly hole 2001, the end of the claw 64 of the pawl spring 6 is exposed to since size is greater than the assembly hole 2001
Outside the assembly hole 2001, the opening edge edge of the assembly hole 2001 is contacted with the guide ramp 641 of the end of the claw 64.
The contact face 642 of the claw 64 and one end of the carrier sheet 9 are in electrical contact.Four claws 64 are shown in figure, at it
In his example, or 2,3,5 etc. is multiple.
It is as shown in Figure 5, apply thrust F for the pawl spring 6 to the assembly hole in the contact face 642 of the claw 64
When pushing away in 2001, the guide ramp 641 of the claw 64 guides the pawl spring 6 and enters the assembly hole 2001, and then can make
The inside elastic deformation of claw 64 of the pawl spring 6 is obtained, the gap between the claw 64 becomes smaller at this time, in the contact face
When the thrust F applied on 642 is removed, the claw 64 of the pawl spring 6 can restore to the original state so that the pawl spring 6 is from the assembling
Certain distance is exited in hole 2001.
The head 63 is cylindricality, and the assembly hole 2001 is cylindrical hole, and the outer diameter of cylindrical head 63 is slightly smaller than described group
The internal diameter in hole 2001 is filled so that the cylindrical head can be freely contained in just in the assembly hole 2001, the claw
The outer diameter of 64 end is greater than the internal diameter of the assembly hole 2001, the axis direction of the guide ramp 641 and the head 63
Angular range be 30 degree to 60 degree, preferably 45 degree.
In this way, in 9 Elastic Contact of pawl spring 6 and carrier sheet, the adjustable length outside assembly hole of pawl spring 6, to adapt to
The distance between inner conductor 2 and carrier sheet 9 at different temperatures.The bigger adjustment force of angle of the guide ramp 641 is bigger, but
Adjustment distance becomes smaller, therefore takes 45° angle comprehensive performance best.
Pawl spring 6 cooperates without spring therefore can reduce 2 length of inner conductor, since the length of inner conductor 2 reduces, so as to
Reduce the length of shell 7,10, and then reduces the length of entire coaxial load.Simultaneously as only one part of pawl spring 6, therefore
It is easy to assembly, and the service life of pawl spring 6 is longer than the form of contact cap and spring.
Fig. 8 is the schematic top plan view of one embodiment of carrier sheet 9 in the utility model, and Fig. 9 is the carrier sheet 9 in Fig. 8
Schematic side view.It is as Figure 8-9, the carrier sheet 9 include substrate 91, from the middle part of the first end edge of the substrate 91 to
Metal electrode area 92 that second end edge extends to form, the metallic ground area for extending first side, the second end edge and second side
94, the film resistor area 96 between metal electrode area 92 and metallic ground area 94 is extended, which connects with metal
Area 94, metal electrode area 92 are electrical connected, and metallic ground area 94 and the inner wall of the core cylinder 7 are electrical connected, metal electrode area
92 are electrical connected with the elastic conductor contact 6.
The material of the substrate 91 can be aluminium nitride, aluminium oxide or beryllium oxide.Metallic ground area 94, metal electrode area 92
Material can be TaN, TiW and/or Au, the material in the film resistor area 96 can be TaN.The thickness of the substrate 91 from
0.1mm to 0.8mm, according to the substrate 91 of the different selection different-thickness of the applicable frequency of the carrier sheet 9.Wherein, it is applicable in
Frequency it is higher, the thickness of the substrate 91 is thinner, and in one embodiment of the utility model, the carrier sheet 9 can be applicable in
Frequency range from DC to 40GHz, substrate thickness is about 0.254 millimeter or so, and the characteristic impedance of the carrier sheet 9 is 50
Ohm.Metallic ground area 94, metal electrode area 92, film resistor 96 are located at the same side of the substrate 92.
As it can be seen that the carrier sheet 9 makees substrate and advanced resistance technique using novel metal oxide, make its power density
Height, resistance value are stablized.Specifically, the carrier sheet 9 can be by being splashed on aluminium nitride medium substrate 91 with thin-film technique high frequency
It penetrates made of tantalum nitride resistance, it can be rapidly the heat transfer of carrier sheet by using the carrier sheet 9 of aluminium nitride medium substrate 91
Onto shell 10.Aluminium nitride coefficient of thermal expansion compared with old Materials Hydrogenated aluminium is lower, and change in size is smaller under high temperature can be to avoid negative
Slide glass fragmentation.
As Figure 8-9, carrier sheet 9 shown in further includes the electrode contact being formed in the first end face of the substrate 91
Area 97, the electrode contact zone 97 are electrical connected with the metal electrode area 92, which connects with the elastic conductor
Contact element is electrical connected.In this way, the process in the first end face painting conducting resinl of carrier sheet 9 can be reduced, the one of installation is improved
Cause property and efficiency.
As Figure 8-9, the part in the formation metal electrode area 92 of the first end edge of the carrier sheet 9 is recessed to the second end edge
It falls into and forms recessed portion 98, two angles positioned at the first end edge in metal electrode area 92 form chamfering 921, the width in metal electrode area 92
Degree is greater than the width of recessed portion 98.It can be obviously improved the standing-wave ratio of carrier sheet in this way.
Referring to Fig. 1, the coaxial load in the utility model can be assembled together via following process.
Carrier sheet 9 is inserted into from the card slot of 4 back-end aligned intracavity bottom of inner housing, after vertically shifting it onto inner housing 4
Behind end, checks position of the carrier sheet 9 in inner housing 4 in the card slot, confirm that it is just stuck in vertical symmetry inner housing 4
In.Carrier sheet 9 and inner housing 4 are welded together with scolding tin later.
Pawl spring 6 is packed into the assembly hole of the inner end of inner conductor 2, is gently flattened；It is same that insulation sleeve 3 is cut to two halves with blade
When side on stay a little apart from endless slitting-up, the two halves insulation sleeve 3 to connect together is closed to be fitted into sleeve 4 on inner conductor 2 and is consolidated
It is fixed ((notice when installation that 3 inner circle of insulation sleeve is big one faces outwardly, inner circle it is small one facing to 2 end of inner conductor), then it is three is whole
6 end of body pawl spring is downward, and fixed from the front loaded inner housing 4 with carrier sheet 9,3 surface of insulation sleeve is equal with inner housing 4,
Pawl spring 6 and the electrode contact zone 97 of carrier sheet 9 are in contact.It is wholy placed in after installing in J shell 7, puts on sheath body 9, compressed
Fix internal structure.Finally by 5 sets of snap ring in the respective slot of J shell 7, the push-in of swivel nut 1 is blocked after tightening, is determined
It can be freely rotated.
The installation method with the coaxial load of negative head load in Fig. 2 is consistent with the above method, replaces corresponding inner conductor
With shell, snap ring 5 and swivel nut 1 are not needed.
The mean power of coaxial load in the utility model can be 2W or other performance numbers, and frequency range can be
DC-50GHz。
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these changes and improvements all in the scope of the claimed invention, want by the utility model
Protection scope is asked to be defined by the appending claims and its equivalent thereof.
Claims (11)
1. a kind of coaxial load, it is characterised in that: comprising:
Shell is inside formed with installation cavity；
Inner housing is assembled in the installation cavity, is inside formed with inner cavity；
The carrier sheet being assembled on rear side of the inner cavity of the inner housing；
The connection component being assembled on front side of the inner cavity of the inner housing comprising inner conductor is sheathed on the inner conductor and consolidates
The elastic conductor contact of the insulation sleeve that is held on the inner wall of the inner housing and the inner end for being assembled in the inner conductor, wherein institute
Inner conductor is stated to be electrical connected by the elastic conductor contact and one end of the carrier sheet；With
It is assembled in the sheath body in the installation cavity and being placed on the rear side of the inner housing.
2. coaxial load as described in claim 1, which is characterized in that it further includes snap ring and swivel nut,
The snap ring is sheathed in the groove of the shell, and the swivel nut is sheathed on the outside of the shell by the snap ring,
Wherein the inner conductor is positive inner conductor.
3. coaxial load as described in claim 1, which is characterized in that
Setting is inserted into there are two corresponding card slot, the two sides of the carrier sheet and is immobilizated in described on the inner wall of the inner housing
It is electrically connected in card slot and with the card slot wall.
4. coaxial load as described in claim 1, which is characterized in that
The inner conductor is negative inner conductor.
5. coaxial load as described in claim 1, which is characterized in that
The elastic conductor contact is pawl spring, and the pawl spring includes head and extends to form from the head to side mutual
Multiple claws with gap, the outside dimensions of the end of the multiple claw are greater than the outside dimensions on the head, the pawl
The end in portion has guide ramp,
Assembly hole is formed on the end face of the inner end of the inner conductor, the head of the pawl spring is placed into the assembly hole, institute
The end for stating the claw of pawl spring is exposed to outside the assembly hole, the opening edge of the assembly hole since size is greater than the assembly hole
Edge is contacted with the guide ramp of the end of the claw,
The contact face of the claw and one end of the carrier sheet are in electrical contact.
6. coaxial load as claimed in claim 5, which is characterized in that
When the contact face of the claw applies thrust and pushes away the pawl spring into the assembly hole, the guiding of the claw is oblique
Face guides the pawl spring and enters the assembly hole, and then enables to the inside elastic deformation of the claw of the pawl spring, connects described
When the thrust applied on contravention face removes, the claw of the pawl spring can restore to the original state so that the pawl spring is from the assembly hole
Inside exit certain distance.
7. coaxial load as claimed in claim 5, which is characterized in that
The head is cylindricality, and the assembly hole is cylindrical hole, the outer diameter of cylindrical head be less than the internal diameter of the assembly hole so that
Obtaining the cylindrical head can freely be contained in the assembly hole, and the outer diameter of the end of the claw is greater than the assembly hole
Internal diameter, the angular range of the axis direction on the guide ramp and the head is 30 degree to 60 degree.
8. coaxial load as described in claim 1, which is characterized in that
The metal electrode that the carrier sheet includes substrate, is extended to form from the middle part of the first end edge of the substrate to the second end edge
Area, the metallic ground area for extending first side, the second end edge and second side, extend metal electrode area and metallic ground area
Between film resistor area,
The film resistor area is electrical connected with metallic ground area, metal electrode area,
Metallic ground area is electrical connected with the inner housing,
Metal electrode area is electrical connected with the elastic conductor contact.
9. coaxial load as claimed in claim 8, which is characterized in that
The carrier sheet further include: be formed in the electrode contact zone in the first end face of the substrate, the electrode contact zone and institute
It states metal electrode area to be electrical connected, which is electrical connected with the elastic conductor contact.
10. coaxial load as claimed in claim 8, which is characterized in that
The part in the formation metal electrode area of the first end edge of the carrier sheet is to the second end edge concave shape at recessed portion, metal electricity
Two angles positioned at the first end edge of polar region form chamfering, and the width in metal electrode area is greater than the width of recessed portion.
11. coaxial load as claimed in claim 8, which is characterized in that
The material of the substrate be aluminium nitride, aluminium oxide or beryllium oxide,
Metallic ground area, metal electrode area material be TaN, TiW and/or Au,
The film resistor area is TaN；
The thickness of the substrate is from 0.1mm to 0.8mm.
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| CN201821953983.0U CN209119289U (en) | 2018-11-26 | 2018-11-26 | Novel coaxial load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2750862C1 (en) * | 2020-12-28 | 2021-07-05 | Акционерное общество "Научно-производственная фирма "Микран" | Medium-power ultrabroadband coaxial load |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2750862C1 (en) * | 2020-12-28 | 2021-07-05 | Акционерное общество "Научно-производственная фирма "Микран" | Medium-power ultrabroadband coaxial load |
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Effective date of registration: 20240116 Address after: 200120, Room 704, Building 2, No. 2388 Xiupu Road, Pudong New Area, Shanghai Patentee after: SHANGHAI XIN XUN MICROWAVE TECHNOLOGY Co.,Ltd. Address before: 200120, Room 202, Building 5, No. 2388 Xiupu Road, Pudong New Area, Shanghai Patentee before: SHANGHAI XIN XUN MICROWAVE TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU XINXUN CABLE TECHNOLOGY Co.,Ltd. |