CN206313241U - A kind of high frequency coaxial probe - Google Patents
A kind of high frequency coaxial probe Download PDFInfo
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- CN206313241U CN206313241U CN201621476762.XU CN201621476762U CN206313241U CN 206313241 U CN206313241 U CN 206313241U CN 201621476762 U CN201621476762 U CN 201621476762U CN 206313241 U CN206313241 U CN 206313241U
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- external member
- high frequency
- outer tube
- thimble
- inner catheter
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- 239000000523 sample Substances 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000037237 body shape Effects 0.000 claims abstract description 3
- 238000005476 soldering Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 15
- 239000007769 metal material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
The utility model is related to a kind of high frequency coaxial probe, including outer tube, insulation body, inner catheter, multiple thimble external members and compensation post, the inner catheter is integrated with outer tube by being set with insulating body electric insulation, the outer tube is provided with multiple along the radially-arranged mounting hole of same circumference, multiple thimble external members are removably respectively arranged in the mounting hole, an other thimble external member is removably set in the inner catheter, the compensation post is the pipe body shape of two ends insertion, its inner chamber is bonded together with the front end of the inner catheter, the thimble external member being set in the inner catheter is passed through from the inner chamber of the compensation post and the end face of its head is concordant with the head end of the thimble external member on outer tube.The utility model is applicable frequency range and can reach 6GHz, and its is stable and reliable for performance, and can be easily reached the purpose of the thimble external member of quick-replaceable damage, and not only stable and reliable for performance, its manufacturing process is also greatly simplified.
Description
Technical field
The utility model is related to detecting probe technical field, more particularly to a kind of high frequency for circuitry testing substrate to refer to
Target probe.
Background technology
As panel computer, the electronic functionalities such as wireless router are more and more, quality requirements get up higher, radio frequency letter
Number test be must less test in actual production, install antenna before be necessary to ensure that circuit board performance meet will
Ask, can all carry out radiofrequency signal test to circuit board.
In high-frequency range, electric shock quality higher is particularly important, so as to by the reflection unfavorable for measurement signal or
Decay is minimized.Additionally, there are for constructional simple design and beneficial to the demand safeguarded, because this for various (logical
It is often multipole contact) element of test probe apparatus of test probe can wear and tear or otherwise be damaged, and must be by more
Change.The test frequency scope of the test probe of prior art is not high, general only to arrive 1GHz or so, it is impossible to which reaching frequency higher will
Ask (such as 3GHz, 6GHz etc.), on the other hand, change probe also inconvenient.
Utility model content
In order to solve the above problems, one of the purpose of this utility model is to provide and a kind of is applicable frequency range high frequency higher
Coaxial probe, is on the other hand the high frequency coaxial probe for improving fast changeable, therefore, the technical solution of the utility model is to carry
For a kind of high frequency coaxial probe, including outer tube, insulation body, inner catheter and multiple thimble external members, the inner catheter leads to outer tube
Cross insulation body electric insulation ground suit to be integrated, the outer tube is provided with multiple along the radially-arranged mounting hole of same circumference, many
The individual thimble external member is removably respectively arranged in the mounting hole, and a thimble external member in addition removably covers
Loaded in the inner catheter, the compensation post of the pipe body shape also including two ends insertion, the inner chamber of the compensation post and the inner catheter
Front end is bonded together, and the thimble external member being set in the inner catheter is passed through and its head from the inner chamber of the compensation post
End face it is concordant with the head end of the thimble external member on outer tube.
Preferably, when the thimble external member is elastically compressed and terminates in the front end face of the compensation post, the compensation post
The head portion of the thimble external member exposed with front end on outer tube forms impedance-compensated region.
Preferably, the inner chamber of the compensation post is bonded together by soldering mode with the front end of the inner catheter.
Preferably, the inner catheter is connected through a screw thread with compensation post and is bonded together.
Preferably, the compensation post is T section and the larger body of point diameter.
Preferably, the outer wall of the outer tube is provided with the annular groove that radially circumference is laid, and makes to be installed on the installation
The thimble external member in hole exposes.
Preferably, also including C-shaped ring, the C-shaped ring is installed in the annular groove, is used to bind the annular groove
The thimble external member for inside exposing.
Preferably, the outer wall for corresponding to each mounting hole is provided with stuck point, and each stuck point forms clamping thimble in mounting hole
The projection of external member.
Preferably, the thimble suite number amount installed on the outer tube is four.
Preferably, when the radial circumference where the thimble external member arrangement on the outer tube is a diameter of 6 millimeters, the compensation
A diameter of 2.4 millimeters~2.6 millimeters of post.
The beneficial effects of the utility model：
High frequency coaxial probe of the present utility model, compensation post is set by contact front end, makes to be applicable frequency range raising
To the level of 6GHz, its is stable and reliable for performance, is configured by the engaging of C-shaped snap ring and annular groove, using the binding of C-shaped snap ring
Power, can make the thimble external member on shell not come off easily, as long as with C-shaped snap ring under tool ejector, so that it may easily remove damage
Thimble external member, reach quick-replaceable purpose.
What deserves to be explained is, in the test of existing radio circuit, often use switching connector and measuring head to enter
Row radiofrequency signal is tested, and switching connector is no longer needed using this high frequency coaxial probe, so as to further save testing cost.
Brief description of the drawings
Fig. 1, Fig. 2 are a kind of two kinds of structural representations at visual angle of high frequency coaxial probe of the new most preferred embodiment of this reality.
Fig. 3 A are the generalized section of the high frequency coaxial probe cutting vertically shown in Fig. 1, Fig. 2.
Fig. 3 B are the partial enlarged drawing after amplification three times in X regions in Fig. 3 A.
Fig. 4 is that the high frequency coaxial probe for being not inserted into ejector pin component does not engage the view of compensation post in its front end.
Fig. 5 is view of the high frequency coaxial probe in its front end engagement compensation post for being not inserted into ejector pin component.
Fig. 6 is the appearance schematic diagram of ejector pin component.
Specific embodiment
Of the present utility model to describe in detail as follows, described preferred embodiment is merely illustrative, not for limiting
The utility model.
It should be noted that the test of entire chapter with high frequency coaxial probe touches face as front end herein, set with being connected to instrument
Standby connection end is description benchmark of the rear end as reference azimuth.
The structure of most preferred embodiment of the present utility model is described below in detail：
Refer to shown in Fig. 1 to Fig. 6, a kind of high frequency coaxial probe 00 of most preferred embodiment of the present utility model, with SMA
Standard interface 11, its one end is connected on external testing instrument (not shown) by SMA interfaces 11, and the other end can cross thimble external member
20 flexibly abut on the respective pad (not shown) on circuit board, so as to the radio-frequency performance to circuit board and its functional part
Tested, the inner catheter 40 and five that outer tube 10 that it is made including metal material, insulation body 50/51, metal material are made
Individual identical thimble external member 20, the supporting role electric insulation ground that the inner catheter 40 passes through the body 50 and 51 that insulate with outer tube 10
Suit is integrated, and the inner catheter 40 is coaxially disposed according to microwave transmission principle with the internal diameter of outer tube 10 by 50 ohmages,
So as to form high frequency signal transmission passage, four mounting holes 132, four are radially distributed with along same circumference on the outer tube 10
The thimble external member 20 passes through removably to be inserted on outer tube 20 on the mounting hole 132, a tailstock barrel in addition
Part 20 is removably sleeved in the inner catheter 40.
As seen from Figure 1, Figure 2, the rear end of the outer tube 10 is SMA standard interfaces 11, and is provided with flange 12, is used to install solid
Determine and connect and external testing instrument.
Further referring to shown in Fig. 3 A, 3B and Fig. 5, the high frequency coaxial probe 00 also includes compensation post 30, the compensation
Post 30 is made up of metal material, preferably copper alloy, is the T-shaped body in the section of two ends insertion, and center has inner chamber 301, bag
The less tube body 32 of the connector portions 31 being relatively large in diameter and diameter positioned at front end is included, is so set and is advantageous in that, due to connecing
The diameter of head 31 is smaller, can be that the thimble external member on outer tube on side stays enough enough compression strokes, it is to avoid interference,
Simultaneously because tube body 32 is relatively large in diameter, will not reduce influences contact stabilization with the contact area of pad.The inner catheter 40
Front end 401 is exposed outside from the front end face of outer tube 10 and insulation body 51, and is housed in the inner chamber 301 of the rear end of the tube body 32
And be bonded together, in the present embodiment, the front end 401 of inner catheter is to be weldingly fixed on one by the rear end of soldering and tube body
Rise, in other embodiments, inner catheter 40 can be bonded together with compensation post 30 using thread connecting mode, shape
Into electrical connection, such as, the front end 401 of inner catheter is designed to external screw thread and the interior cavity wall for compensating post 30 is designed to corresponding rule
The internal thread of lattice, makes inner catheter 40 be bonded together with compensation post 30 by the tight fit of internal and external threads, and such benefit exists
In, when post 30 is compensated because needing to change using abrasion, can be by only removing the directly replacing of compensation post 30 easily, no
Needs scrap whole high frequency coaxial probe, and the thimble external member 20 being set in the inner catheter 40 compensates post 30 from described
Inner chamber pass through and the end face of its head is concordant with the head end of the thimble external member 20 on outer tube 10, i.e., installed in high frequency
(shown in reference picture 3A, 3B) that the front end surface of all thimble external members 20 on coaxial probe 00 is generally flush with.
Refer again to shown in Fig. 3 A, 3B and Fig. 6, the thimble external member 20 is can to remove replacing by what metal material was made
An entirety, including thimble outer tube 23, the syringe needle 21 that is set in the thimble outer tube 23 and be set in thimble outer tube 23
The spring 23 for making the syringe needle 21 flexibly can be axially moved in thimble outer tube 23, the syringe needle 21 is provided with multiple pawls
Tooth 211.Further combined with shown in Fig. 1 and Fig. 2, four thimble external members 20 on outer tube 20 pass through the thimble first 21 of head
On the ground potential that flexibly abuts to circuit board of blade tooth 211 pad on, ground connecting path is formed, on inner catheter 40
Pad of the thimble external member 20 by the signal potential that flexibly abuts to circuit board of blade tooth 211 of top 21 on, form signal
Path.
The front end face that the end face of blade tooth 211 and compensation post 30 are elastically compressed when the syringe needle 21 of thimble external member 20 is substantially
When mutually neat, the thimble external member 20 is exposed by the front end face backstop of compensation post 30, now the compensation post 30 with front end on outer tube
The head portion of thimble external member 20 form impedance-compensated region, such that it is able to the diameter by adjusting compensation post 30 come right
The region of this section of unmasked between the outer tube front end face and board pads of high frequency coaxial probe 00 carries out impedance mismatching area and enters
Row is effective impedance-compensated, reaches the impedance matching effect of optimization, in the present embodiment, by test of many times and test, works as institute
When radial circumference where stating the thimble external member arrangement on outer tube 20 is a diameter of 6 millimeters, the diameter design of the compensation post 30 is
At 2.4 millimeters~2.6 millimeters, the RF index of high frequency coaxial probe 00 is optimal, and the standing-wave ratio index in 6GHz can reach 1.2
Within.
In other embodiments, three can be only installed on outer tube 10 or four more thimble external members of ratio is installed
20, in this case, it is necessary to the quantity according to thimble external member 20 compensates the diameter of post 30 in response to ground design alteration, so as to reach
To more preferable impedance-compensated effect.
As shown in Figure 1, Figure 2 with the annular groove that radially circumference laying shown in Fig. 3 A, is provided with the outer wall of the outer tube 10
131, the thimble external member 20 for being installed on the mounting hole 132 is exposed, the high frequency coaxial probe 00 also includes C-shaped ring 60, institute
State C-shaped ring 60 to be installed in the annular groove 131, in the present embodiment, C-shaped ring 60 is two, be arranged in the one section of axle in interval
To the two ends of distance, thimble external member 20 is bound in the annular groove 131 well.
What deserves to be explained is, the mode for preventing thimble external member 20 from being come off from outer tube 10 and inner catheter 40 also has very
It is many, for example controlled by riveting tool on the outer wall of mounting hole 132 and extrude stuck point by force, so that each stuck point is in mounting hole
The raised (not shown) of clamping thimble external member 20 is formed in 132, the thimble external member 20 in the present embodiment is exactly by this
The mode checked card a little is held in the inner chamber of inner catheter 40.
As the assembling process of above-mentioned high frequency coaxial probe 00 is about, first by inner catheter 40, insulation body 50,51
Suit is fixed on outer tube 10, and the front end 401 of the inner catheter 40 exposes outside one section from the end face of front end, then by inner catheter 40
The front end 401 exposed links together with compensation post soldering, then after, four thimble external members 20 are inserted the peace to outer tube 20 respectively
In dress hole 132, and a thimble external member 20 is inserted into the inner chamber of inner catheter 40, make the blade tooth end face of all thimble external members 20
Concordantly, it is installed in being arranged in the annular groove 131 of outer tube 10 finally by C-shaped ring 60, makes the tailstock barrel of all outer tubes
The binding contact of part 20 is integrated.
High frequency coaxial probe 00 of the present utility model is applicable frequency range and can reach 6GHz, and its is stable and reliable for performance, by C
The engaging configuration of shape snap ring and annular groove, can be easily reached the purpose of the thimble external member of quick-replaceable damage, and not only performance is steady
Fixed reliable, its manufacturing process is also greatly simplified.
The above, only lists most preferred embodiment of the present utility model, it is impossible to limit the utility model implementation with this
Scope, any similar technical scheme should all belong to the content disclosed in the utility model.
Claims (10)
1. a kind of high frequency coaxial probe, including outer tube, insulation body, inner catheter and multiple thimble external member, the inner catheter with it is outer
Pipe is integrated by being set with insulating body electric insulation, and the outer tube is provided with multiple along the radially-arranged installation of same circumference
Hole, multiple thimble external members are removably respectively arranged in the mounting hole, and a thimble external member in addition is removable
Be set in unloading in the inner catheter, it is characterised in that the compensation post of the pipe body shape also including two ends insertion, the compensation post it is interior
Chamber is bonded together with the front end of the inner catheter, and the thimble external member being set in the inner catheter is from the compensation post
Inner chamber passes through and the end face of its head is concordant with the head end of the thimble external member on outer tube.
2. a kind of high frequency coaxial probe according to claim 1, it is characterised in that：When the thimble external member is elastically compressed
And when terminating in the front end face of the compensation post, the head portion of the thimble external member that the compensation post exposes with front end on outer tube is formed
Impedance-compensated region.
3. a kind of high frequency coaxial probe according to claim 1 and 2, it is characterised in that：The inner chamber of the compensation post passes through
Soldering mode is bonded together with the front end of the inner catheter.
4. a kind of high frequency coaxial probe according to claim 1 and 2, it is characterised in that：The inner catheter leads to compensation post
Threaded connection is crossed to be bonded together.
5. a kind of high frequency coaxial probe according to claim 1 and 2, it is characterised in that：It is described compensation post be T section and
The larger body of point diameter.
6. a kind of high frequency coaxial probe according to claim 1 and 2, it is characterised in that：The outer wall of the outer tube is provided with
The annular groove that radially circumference is laid, exposes the thimble external member for being installed on the mounting hole.
7. a kind of high frequency coaxial probe according to claim 6, it is characterised in that：Also include C-shaped ring, the C-shaped ring card
Loaded in the annular groove, being used to bind the thimble external member that is exposed in the annular groove.
8. a kind of high frequency coaxial probe according to claim 1 and 2, it is characterised in that：The outer wall of corresponding each mounting hole
Stuck point is provided with, each stuck point forms the projection of clamping thimble external member in mounting hole.
9. a kind of high frequency coaxial probe according to claim 1, it is characterised in that：The thimble installed on the outer tube
External member quantity is four.
10. a kind of high frequency coaxial probe according to claim 9, it is characterised in that：When the thimble external member on the outer tube
When radial circumference where arrangement is a diameter of 6 millimeters, a diameter of 2.4 millimeters~2.6 millimeters of the compensation post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476762.XU CN206313241U (en) | 2016-12-30 | 2016-12-30 | A kind of high frequency coaxial probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476762.XU CN206313241U (en) | 2016-12-30 | 2016-12-30 | A kind of high frequency coaxial probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313241U true CN206313241U (en) | 2017-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476762.XU Active CN206313241U (en) | 2016-12-30 | 2016-12-30 | A kind of high frequency coaxial probe |
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| Country | Link |
|---|---|
| CN (1) | CN206313241U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019115071A1 (en) * | 2017-12-14 | 2019-06-20 | Ingun Prüfmittelbau Gmbh | High-frequency test connector device, high-frequency testing system and use of same |
| CN111596097A (en) * | 2020-05-12 | 2020-08-28 | 渭南高新区木王科技有限公司 | Probe type radio frequency test connector |
| TWI855832B (en) * | 2022-09-07 | 2024-09-11 | 旺矽科技股份有限公司 | Probe card, method that design the probe card, method for producing semiconductor device under test. method for testing unpackagged semiconductor by probe card, device under test and probe system |
-
2016
- 2016-12-30 CN CN201621476762.XU patent/CN206313241U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019115071A1 (en) * | 2017-12-14 | 2019-06-20 | Ingun Prüfmittelbau Gmbh | High-frequency test connector device, high-frequency testing system and use of same |
| US11747364B2 (en) | 2017-12-14 | 2023-09-05 | Ingun Prüfmittelbau Gmbh | High-frequency test connector device, high frequency testing system and use of same |
| CN111596097A (en) * | 2020-05-12 | 2020-08-28 | 渭南高新区木王科技有限公司 | Probe type radio frequency test connector |
| TWI855832B (en) * | 2022-09-07 | 2024-09-11 | 旺矽科技股份有限公司 | Probe card, method that design the probe card, method for producing semiconductor device under test. method for testing unpackagged semiconductor by probe card, device under test and probe system |
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