CN209045725U - A kind of modified coaxial load - Google Patents
A kind of modified coaxial load Download PDFInfo
- Publication number
- CN209045725U CN209045725U CN201821953977.5U CN201821953977U CN209045725U CN 209045725 U CN209045725 U CN 209045725U CN 201821953977 U CN201821953977 U CN 201821953977U CN 209045725 U CN209045725 U CN 209045725U
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- China
- Prior art keywords
- assembly hole
- carrier sheet
- claw
- load
- pawl spring
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- 239000004020 conductor Substances 0.000 claims abstract description 72
- 238000009434 installation Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 239000002184 metal Substances 0.000 claims description 39
- 210000000078 claw Anatomy 0.000 claims description 33
- 239000000758 substrate Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 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 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000004697 Polyetherimide Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229920001601 polyetherimide Polymers 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000004727 Noryl Substances 0.000 description 2
- 229920001207 Noryl Polymers 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 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
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 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
- 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
- 238000012545 processing Methods 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
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a kind of coaxial loads comprising: shell is inside formed with installation cavity；Load component comprising the core cylinder for being formed with loaded cavity and the carrier sheet in the loaded cavity being installed in the core cylinder, wherein the load component is placed on the inside of the installation cavity；Connection component, it includes the elastic conductor contact of the sleeve for being formed with conductor cavity, the inner conductor positioned at the middle part of the conductor cavity, the insulation sleeve that is sheathed on the inner conductor and is immobilizated on the sleeve lining and the inner end for being assembled in the inner conductor, wherein the connection component is placed in the installation cavity and is located on the outside of the load component, and the inner conductor is electrical connected by the elastic conductor contact and one end of the carrier sheet.Length is reduced using monoblock type shell in the utility model, improves installation consistency, it is subsequent using more stable.
Description
Technical field
The utility model relates to arrive coaxial load field, specifically, being related specifically to a kind of modified 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.
Fig. 1 shows a kind of existing coaxial load.The coaxial load includes swivel nut 21, inner conductor 22, pressure ring 23, first
Shell 24, lantern ring 25, dielectric 26, snap ring 27, sleeve 28, spring 29, contact cap 30, carrier sheet 31 and second housing 32.
As seen from Figure 1, in which: die sinking casting connects lantern ring 25 and inner conductor 22 after 26 high temperature melt of Noryl castable (PPO)
It is connected in an entirety, the structure size needed, it is done so that processing cost is high, and performance is unstable under high temperature；Inside lead
Body 22 passes through contact cap 30) add spring 29 to contact with carrier sheet 31, spring 29 reduce 22 length of inner conductor can not, contact cap 30
Contact that there are gaps to cause performance unstable with inner wall；Bottom annular knurl second housing 32 increases device contour length.
In summary, it is accordingly required in particular to a kind of follow-on coaxial load, so as to solve the deficiencies in the prior art.
Utility model content
The purpose of this utility model is to provide a kind of coaxial loads, it is intended to meet high-frequency test requirement, reduce structure ruler
It is very little, further improve the reliability and consistency of device.
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；Load component comprising be formed with load
Carrier sheet in the core cylinder of cavity and the loaded cavity being installed in the core cylinder, wherein the load component be placed on it is described
The inside of installation cavity；Connection component comprising be formed with the sleeve of conductor cavity, in the middle part of the conductor cavity
Conductor, the insulation sleeve for being sheathed on the inner conductor and being immobilizated on the sleeve lining and the inner end for being assembled in the inner conductor
Elastic conductor contact, wherein the connection component is placed in the installation cavity and is located at outside the load component
Side, the inner conductor are electrical connected by the elastic conductor contact and one end of the carrier sheet.
In a preferred embodiment, the coaxial load further includes hollow pressure shell, snap ring and swivel nut, the pressure
Shell is installed in the outside in the installation cavity and being located at the connection component, and the snap ring is sheathed on the groove of the shell
Interior, the swivel nut is sheathed on the outside of the shell by the snap ring.
In a preferred embodiment, there are two corresponding card slot, the carrier sheets for setting on the inner wall of the core cylinder
Two sides be inserted into and be immobilizated in the card slot and be electrically connected with the card slot wall.
In a preferred embodiment, the coaxial load further includes having: positioned at the installation cavity bottom wall and
Metal ring plate between the core cylinder, the two sides of the carrier sheet are welded in the card slot, the carrier sheet and the gold
Belong to ring plate to weld together.
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 monoblock type shell reduces length, improves installation
Consistency, it is subsequent using more stable.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of existing coaxial load；
Fig. 2 is the schematic diagram of internal structure of the coaxial load 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 range can be from direct current to 40GHz.Fig. 2 is that this is practical new
The schematic diagram of internal structure of coaxial load in type, as shown in Fig. 2, the coaxial load in the utility model includes shell 10, bears
Carry component and connection component.
Installation cavity is formed in the shell 10.Enter in the installation that one end of the shell 10 forms the installation cavity
Mouthful, the other end of the shell 10 forms the bottom wall 101 of the installation cavity.The load component includes being formed with loaded cavity
Core cylinder 7 and the loaded cavity that is installed in the core cylinder 7 in carrier sheet 9, wherein the load component be placed on it is described
The bottom wall 101 of the inside of installation cavity and the close installation cavity.The connection component includes the set for being formed with conductor cavity
Cylinder 4, positioned at the middle part of the conductor cavity inner conductor 1, be sheathed on the inner conductor 1 and be immobilizated in 4 inner wall of sleeve
On insulation sleeve 3 and be assembled in the inner conductor 1 inner end elastic conductor contact 6, wherein the connection component is placed
In the outside of the installation cavity, the inner conductor 1 is electric by the elastic conductor contact 6 and one end of the carrier sheet 9
Property be connected.
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
Sleeve 5 distinguishes front and back sides when avoiding installation dielectric 3, different insulative medium 3 will not mix after cutting, greatly
Ground improves installation effectiveness.
The inner conductor 2 is manufactured using tin-phosphor bronze, is not necessarily to nickel plating.Old edition sun inner conductor uses brass to compare for raw material
It is soft, need nickel plating to improve hardness, but nickel can improve loss, therefore be changed to that cost is close and the higher tin-phosphor bronze of hardness, nothing
Nickel plating is needed to reduce loss.
As shown in Fig. 2, in one embodiment, the coaxial load in the utility model further includes hollow pressure shell 2, described
Pressure shell 2 is installed in the outside in the installation cavity and being located at the connection component.Pressure shell 2 is compressed with press, by inside
Structure is fixed.
As shown in Figure 2, in one embodiment, the coaxial load in the utility model further includes snap ring 5 and swivel nut 11.
The snap ring 5 is sheathed in the groove of the shell 10, and the swivel nut 11 is sheathed on the outer of the shell 10 by the snap ring 5
Side.In the embodiment shown in Figure 2, the inner conductor 2 is positive inner conductor, and can also according to fig. 2 in coaxial load knot
Structure realizes the coaxial load with negative inner conductor 2, snap ring 5 and swivel nut 11 is removed, and the positive inner conductor in Fig. 2 is changed into yin
Conductor, while replacing the shape of shell 10, so that it may form the coaxial load with negative inner conductor 2.
As shown in Fig. 2, in one embodiment, there are two corresponding card slots for setting on the inner wall of the core cylinder 7, described negative
The two sides of slide glass 9 are inserted into and are immobilizated in the card slot and are electrically connected with the card slot wall.It is preferred at one
In embodiment, the two sides of the carrier sheet 9 are welded in the card slot.When installation, by 9 left and right sides metal area of carrier sheet
It coats scaling powder to be stained in the card slot for being packed into core cylinder 7 after scolding tin, scolding tin be distributed and uneven in slot at this time, and heating keeps scolding tin equal
The even card slot for filling up the core cylinder 7.This mounting means no longer needs earth clip, therefore carrier sheet is not required to the both sides metal area increased
Width facilitate earth clip to install, reduce carrier sheet width.Scolding tin flowing stays the cooperation between carrier sheet 9 and core cylinder 7
There is leeway, improves the consistency of installation.It is individually reloaded into after outside installs carrier sheet 9 in addition, core cylinder 7 is separated
In shell 10, does not influence performance and operate greatly simply, improve the consistency of installation, reduce installation difficulty.
As shown in Fig. 2, in one embodiment, the coaxial load in the utility model further includes being located at the installation cavity
Bottom wall 101 and the core cylinder 7 between metal ring plate 8.The carrier sheet 9 and the metal ring plate 8 weld together.It is described
Metal ring plate 8 is circular copper rings piece of the 0.1mm to 0.2mm thickness, and copper ring piece one side is directly welded with the bottom end of carrier sheet 9, one
Face is contacted with the bottom wall 101 of shell 10.8 outer diameter of copper ring piece and core cylinder 7 are consistent, and inner hole outer diameter is 1.8mm.Due to the material of shell 10
Material is not suitble to scolding tin all, and the bottom end of carrier sheet 9 can not be directly directly welded to the bottom wall 101 of shell 10.Therefore it will load
It is heated after tin on piece 9 after welding together with copper ring piece 8, then contacted with shell 10.The design of copper ring piece can improve load
Standing wave performance, compared with the space for directly staying a cone on the bottom wall of shell 10 before, performance is more superior.
The shell 12 is integral type, can reduce product length, has improved the consistency of installation, has used product
It is more stable in the process.The shell of integral type does not need nip drum flower second housing (32 in Fig. 1), both reduces installation steps,
Also reduce 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 1 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 1
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 1 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 the elastic conductor contact 6 in Fig. 2 is exactly one
Pawl spring.
Fig. 4 is the assembling schematic diagram of a state of inner conductor 1 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 1 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 1001 is formed on the end face of the inner end of the inner conductor 1, the head 63 of the pawl spring 6 is put
It is placed in the assembly hole 1001, the end of the claw 64 of the pawl spring 6 is exposed to since size is greater than the assembly hole 1001
Outside the assembly hole 1001, the opening edge edge of the assembly hole 1001 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 1001, the guide ramp 641 of the claw 64 guides the pawl spring 6 and enters the assembly hole 1001, 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 1001.
The head 63 is cylindricality, and the assembly hole 1001 is cylindrical hole, and the outer diameter of cylindrical head 63 is slightly smaller than described group
The internal diameter in hole 1001 is filled so that the cylindrical head can be freely contained in just in the assembly hole 1001, the claw
The outer diameter of 64 end is greater than the internal diameter of the assembly hole 1001, 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 1 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 1 length of inner conductor, since the length of inner conductor 1 reduces, so as to
Reduce the length of shell 10, and then reduces the length of entire coaxial load.Simultaneously as only one part of pawl spring 6, therefore group
Dress is convenient, 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. 2, the coaxial load in the utility model can be assembled together via following process.
Pawl spring 6 is packed into the assembly hole of the inner end of inner conductor 1, 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 1 and is consolidated
It is fixed, it puts aside stand-by.9 the right and left metal area of carrier sheet is coated after scaling powder is stained with scolding tin and is packed into core cylinder 7, by copper ring
Piece 8 is placed on the bottom of the installation cavity of shell 10, and the core cylinder 7 for installing carrier sheet 9 is placed on copper ring piece 8, with the method for heating
It flows out the scolding tin in the card slot of core cylinder 7 and welds copper ring piece 8 and carrier sheet 9, become an entirety.It interior is led mounted
The whole outside being put into the installation cavity of shell 10 and be located at core cylinder 7 of body 1, sleeve 4, insulation sleeve 3, pawl spring 6, pawl spring 6 and negative
9 Elastic Contact of slide glass.Pressure shell 2 is put into again later, is compressed with press, internal structure is fixed.Outside by 5 sets of snap ring finally
In the respective slot of shell 10, the push-in of swivel nut 11 is blocked after tightening.
The mean power of coaxial load in the utility model can be 2W or other performance numbers, and frequency range can be
DC-40GHz, certain frequency range, which also can according to need, to be adjusted.
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；
Load component comprising the core cylinder for being formed with loaded cavity and the load in the loaded cavity being installed in the core cylinder
Piece, wherein the load component is placed on the inside of the installation cavity；
Connection component comprising be formed with conductor cavity sleeve, positioned at the middle part of the conductor cavity inner conductor, be sheathed on
On the inner conductor and the elastic conductor of the insulation sleeve being immobilizated on the sleeve lining and the inner end for being assembled in the inner conductor
Contact, wherein the connection component is placed in the installation cavity and is located on the outside of the load component, it is described in lead
Body is electrical connected by the elastic conductor contact and one end of the carrier sheet.
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.
3. coaxial load as described in claim 1, which is characterized in that
There are two corresponding card slots for setting on the inner wall of the core cylinder, and the two sides of the carrier sheet are inserted into and are immobilizated in the card
It is electrically connected in slot and with the card slot wall,
The coaxial load further includes hollow pressure shell, wherein the pressure shell is installed in the installation cavity and is located at described
The outside of connection component.
4. coaxial load as claimed in claim 3, which is characterized in that it further includes having:
Metal ring plate between the bottom wall and the core cylinder of the installation cavity,
The two sides of the carrier sheet are welded in the card slot, and the carrier sheet and the metal ring plate weld together.
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 and extend metal electrode area and metal connects
Film resistor area between area,
The film resistor area is electrical connected with metallic ground area, metal electrode area,
Metallic ground area and the inner wall of the core cylinder are electrical connected,
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953977.5U CN209045725U (en) | 2018-11-26 | 2018-11-26 | A kind of modified coaxial load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953977.5U CN209045725U (en) | 2018-11-26 | 2018-11-26 | A kind of modified coaxial load |
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| Publication Number | Publication Date |
|---|---|
| CN209045725U true CN209045725U (en) | 2019-06-28 |
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| CN201821953977.5U Active CN209045725U (en) | 2018-11-26 | 2018-11-26 | A kind of modified coaxial load |
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| CN (1) | CN209045725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030615A (en) * | 2021-03-01 | 2021-06-25 | 南方科技大学 | Multichannel high-voltage radio frequency sampling device |
-
2018
- 2018-11-26 CN CN201821953977.5U patent/CN209045725U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030615A (en) * | 2021-03-01 | 2021-06-25 | 南方科技大学 | Multichannel high-voltage radio frequency sampling device |
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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. |