CN106169684B - A kind of radio frequency adapter - Google Patents
A kind of radio frequency adapter Download PDFInfo
- Publication number
- CN106169684B CN106169684B CN201610795518.8A CN201610795518A CN106169684B CN 106169684 B CN106169684 B CN 106169684B CN 201610795518 A CN201610795518 A CN 201610795518A CN 106169684 B CN106169684 B CN 106169684B
- Authority
- CN
- China
- Prior art keywords
- outer conductor
- conductor
- center conductor
- female
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/32—Conductive members located in slot or hole in screw
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The present invention relates to electromagnetism field more particularly to a kind of radio frequency adapters, male connector and female including being separately positioned on two coaxial cable transmission line one end；The male connector includes the first center conductor, the first outer conductor of tubular and first insulator；The inner wall of first outer conductor is equipped with internal screw thread；The female includes the second outer conductor, the second center conductor, capacitor dielectric body and the second insulator of tubular；The capacitor dielectric body and second insulator are respectively sleeved on the second center conductor, and between second outer conductor and the second center conductor；The outer wall of second outer conductor is equipped with the external screw thread matched with the internal screw thread on the inner wall of the first outer conductor.The threaded connection of male connector and female in radio frequency adapter provided by the invention is to realize the fine tuning of length of transmission line by way of spiral, and the cooperation after fine tuning by screw makes male connector and the fixed relative position of female, so that the length of transmission line after fine tuning is more stable.
Description
Technical field
The present invention relates to electromagnetism field more particularly to a kind of radio frequency adapters.
Background technique
Radio frequency adapter is also referred to as radio frequency (RF) coaxial connector, is a kind of critical elements interconnected between instrument and equipment, penetrates
Frequency adapter is that cooperation coaxial radio-frequency transmission line uses, and the electricity for needing to continuously adjust coaxial radio-frequency transmission line under normal conditions is long
Degree, following situation:
1, each short circuit or open circuit minor matters of impedance matching, needs the length of each minor matters of Field adjustment, to realize best resistance
Anti- matching；
2, Phase Continuation fine tuning is carried out, in the case where needing be slightly variable electric Phase Continuation to realize optimum impedance
Match；
3, in multichannel coupling network, since the coaxial radio frequency cable of coupling network makes tolerance and source port and load
The difference of the impedance operator of port causes coupling network performance in kind poorer than simulation result, is needed at this time by coupling network
Each coaxial transmission line carries out the adjustment of length to realize the field adjustable to coupling network in kind, to make whole coupling network
Performance is optimal.
However, there is presently no the electrical length that can adjust coaxial radio-frequency transmission line to realize that the radio frequency of optimum impedance turns
Connector.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of coaxial radio-frequency transmission line of adjustable electrical length to realize
The radio frequency adapter of optimal impedance matching.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of radio frequency adapter, male connector and female including being separately positioned on two coaxial cable transmission line one end；
The male connector includes the first center conductor, the first outer conductor of tubular and first insulator；It leads at first center
Body is co-axially located inside first outer conductor, and the first insulator is filled in first outer conductor and first
Between heart conductor；Described first center conductor axial direction one end is stretched out except the first outer conductor；On the inner wall of first outer conductor
Equipped with internal screw thread；The inner wall of first outer conductor is equipped with threaded hole；
The female includes the second outer conductor, the second center conductor, capacitor dielectric body and the second insulator of tubular；It is described
Second center conductor, capacitor dielectric body and second insulator are co-axially located inside second outer conductor；The capacitor dielectric
Body and second insulator are respectively sleeved on the second center conductor, and be located at second outer conductor and the second center conductor it
Between；
The outer wall of second outer conductor is equipped with the external screw thread matched with the internal screw thread on the inner wall of the first outer conductor；
First center conductor is the protrusion of cylindrical shape；Second center conductor is equipped with axial blind hole and mutually fits with the protrusion
Match；First center conductor is slidably connected with the second center conductor；
Screw, which passes through the threaded hole locking on the first outer conductor inner wall, makes male connector and the fixed relative position of female.
The beneficial effects of the present invention are: male connector and female in the prior art using threaded connection be in order to install with it is solid
It is fixed, and the threaded connection of male connector and female in radio frequency adapter provided by the invention is to realize transmission by way of spiral
The fine tuning of line electrical length, the cooperation after fine tuning by screw makes male connector and the fixed relative position of female, so that the transmission after fine tuning
Line electrical length is more stable.Capacitor dielectric body is increased on the basis of existing female, so that in the first center conductor and second
When heart conductor matches the length of fine tuning coaxial radio-frequency transmission line, transmission line performance will not deteriorate, and radio frequency provided by the invention turns
For connector in the case where influencing minimum to radio-frequency performance, Insertion Loss is not inferior to 0.008dB, and standing-wave ratio is not inferior to 1.1, can be realized DC
Consecutive variations in the length 20mm of~400MHz frequency range to finely tune coaxial radio-frequency transmission line.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the male connector of radio frequency adapter of the invention；
Fig. 2 is the structural schematic diagram of the female of radio frequency adapter of the invention；
Fig. 3 is the schematic diagram of the characteristic impedance of radio frequency adapter of the invention；
Label declaration:
1, male connector；11, the first center conductor；12, the first outer conductor；121, threaded hole；13, first insulator；2, female；
21, the second outer conductor；22, the second center conductor；23, capacitor dielectric body；24, second insulator.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: the threaded connection of male connector and female in radio frequency adapter provided by the invention
It is to realize the fine tuning of length of transmission line by way of spiral, the cooperation after fine tuning by screw makes male connector and female stationary phase
To position, so that the length of transmission line after fine tuning is more stable.
Fig. 1 and Fig. 2, a kind of radio frequency adapter provided by the invention are please referred to, including is separately positioned on two coaxial electricals
The male connector 1 and female 2 of cable transmission line one end；
The male connector 1 includes the first center conductor 11, the first outer conductor 12 of tubular and first insulator 13；Described first
Center conductor 11 is co-axially located inside first outer conductor 12, and the first insulator 13 is filled with outside described first
Between conductor 12 and the first center conductor 11；The axial one end of first center conductor 11 is stretched out except the first outer conductor 12；Institute
The inner wall for stating the first outer conductor 12 is equipped with internal screw thread；The inner wall of first outer conductor 12 is equipped with threaded hole 121；
The female 2 includes the second outer conductor 21, the second center conductor 22, capacitor dielectric body 23 and the second insulation of tubular
Body 24；Second center conductor 22, capacitor dielectric body 23 and second insulator 24 are co-axially located at second outer conductor 21
It is internal；The capacitor dielectric body 23 and second insulator 24 are respectively sleeved on the second center conductor 22, and are located at described second
Between outer conductor 21 and the second center conductor 22；
The outer wall of second outer conductor 21 is outer equipped with what is matched with the internal screw thread on the inner wall of the first outer conductor 12
Screw thread；First center conductor 11 is the protrusion of cylindrical shape；Second center conductor 22 be equipped with axial blind hole and with institute
Protrusion is stated to be adapted；First center conductor 11 is slidably connected with the second center conductor 22；
Screw, which passes through the locking of threaded hole 121 on 12 inner wall of the first outer conductor, aligns male connector 1 and 2 stationary phase of female
It sets.
As can be seen from the above description, the beneficial effects of the present invention are: male connector and female in the prior art are connected using screw thread
Connect is to install and fixed, and internal screw thread and mother on the first outer conductor of the male connector in radio frequency adapter provided by the invention
External screw thread on second outer conductor of head is threadedly coupled, and the fine tuning of length of transmission line is realized by way of spiral, is finely tuned
Male connector and the fixed relative position of female are made by the cooperation of screw afterwards, so that the length of transmission line after fine tuning is more stable.Existing
Female on the basis of increase capacitor dielectric body so that the first center conductor matches fine tuning with the second center conductor and coaxial penetrates
When the length of frequency transmission line, transmission line performance will not deteriorate, and radio frequency adapter provided by the invention is influencing pole to radio-frequency performance
In the case where small, Insertion Loss is not inferior to 0.008dB, and standing-wave ratio is not inferior to 1.1, and it is coaxial to finely tune to can be realized DC~400MHz frequency range
Consecutive variations in radio frequency transmission line length 20mm.Described first center conductor axial direction one end is stretched out except the first outer conductor, can
Realize the adjusting of length of transmission line.
The working principle of radio frequency adapter of the invention are as follows:
The first outer conductor in male connector is first contacted with the second outer conductor in female, and passes through the interior spiral shell on the first outer conductor
Line is matched with the external screw thread on the second outer conductor, and during spiral, the first center conductor (protrusion) in male connector protrudes into
Two center conductors (axial blind hole), the first center conductor are slidably connected with the second center conductor, are being set in the second center conductor
On capacitor dielectric body under the action of, realize length of transmission line adjust simultaneously, performance does not receive influence, male connector and the mutual spiral of female
When, drive the first center conductor constantly to change with the second center conductor relative position, length of transmission line is also constantly changing at this time,
When length of transmission line is adjusted to it is best when, using screw, screw passes through the threaded hole that is arranged on the first outer conductor, and screw is withstood
The outer wall of second outer conductor stops so that the second outer conductor and the first outer conductor keep opposite, and then ensures best transmission wire length
Degree.
Protrusion is inserted into groove by male connector and female by way of spiral, during insertion, in capacitor dielectric body
When effect is lower to be can be achieved to adjust length of transmission line, transmission line performance is unaffected, when length of transmission line reaches it is best when, stop spiral shell
Rotation makes male connector and the fixed relative position of female using the cooperation of screw, so that the length of transmission line after fine tuning is more stable.
Further, the top of the protrusion is tip-like.It is blind convenient for the compatible axial direction of protrusion insertion using tip-like
Hole.
Further, the distance of the protrusion protrusion first insulator is 20mm.Illustrate that protrusion can go deep into axial blind hole
20mm, since Design of Screw Thread needs, in 2mm to 20mm at a distance from protrusion and axial blind hole are deep, characterisation impedance it is adjustable
Distance is 2mm to 20mm.
Further, the inner wall of the first outer conductor of the male connector is equipped with the cricoid first weak property magnet；The female
The outer wall of the second outer conductor be equipped with cricoid the second weak property magnet to attract each other with the first weak property magnet.In male connector and mother
It when head contraposition, is attracted each other by the first weak property magnet and the second weak property magnet, realizes rapid-aligning, and reduce protrusion not
Good collision, and then influence electric property.
Please refer to Fig. 1-2, the embodiment of the present invention one are as follows:
A kind of radio frequency adapter provided by the invention, the male connector including being separately positioned on two coaxial cable transmission line one end
1 and female 2；
The male connector 1 includes the first center conductor 11, the first outer conductor 12 of tubular and first insulator 13；Described first
Center conductor 11 is co-axially located inside first outer conductor 12, and the first insulator 13 is filled with outside described first
Between conductor 12 and the first center conductor 11；The axial one end of first center conductor 11 is stretched out except the first outer conductor 12；Institute
The inner wall for stating the first outer conductor 12 is equipped with internal screw thread；The inner wall of first outer conductor 12 is equipped with threaded hole 121；
The female 2 includes the second outer conductor 21, the second center conductor 22, capacitor dielectric body 23 and the second insulation of tubular
Body 24；Second center conductor 22, capacitor dielectric body 23 and second insulator 24 are co-axially located at second outer conductor 21
It is internal；The capacitor dielectric body 23 and second insulator 24 are respectively sleeved on the second center conductor 22, and are located at described second
Between outer conductor 21 and the second center conductor 22；
The outer wall of second outer conductor 21 is outer equipped with what is matched with the internal screw thread on the inner wall of the first outer conductor 12
Screw thread；First center conductor 11 is the protrusion of cylindrical shape；Second center conductor 22 be equipped with axial blind hole and with institute
Protrusion is stated to be adapted；First center conductor 11 is slidably connected with the second center conductor 22；
Screw, which passes through the locking of threaded hole 121 on 12 inner wall of the first outer conductor, aligns male connector 1 and 2 stationary phase of female
It sets.
Protrusion is inserted into groove by male connector and female by way of spiral, during insertion, in capacitor dielectric body
Adjustable length of transmission line under effect, simultaneous transmission linearly can it is unaffected, when characteristic impedance reaches it is best when, stop spiral,
Make male connector and the fixed relative position of female using the cooperation of screw, so that the length of transmission line after fine tuning is more stable.
The top of the protrusion is tip-like.Compatible axial blind hole is inserted into convenient for protrusion using tip-like.
The distance of the protrusion protrusion first insulator is 20mm.Illustrate that protrusion can go deep into axial blind hole 20mm, due to spiral shell
Line design need, protrusion with axial blind hole it is deep at a distance from 2mm to 20mm, the adjustable distance of characterisation impedance arrives for 2mm
20mm。
The inner wall of first outer conductor of the male connector is equipped with the cricoid first weak property magnet；It is led outside the second of the female
The outer wall of body is equipped with cricoid the second weak property magnet to attract each other with the first weak property magnet.When male connector and female align,
It is attracted each other by the first weak property magnet and the second weak property magnet, realizes rapid-aligning, and reduce the bad collision of protrusion, into
And influence electric property.
Such as Fig. 3, impedance of the microwave transmission line theory about any point on transmission line, wherein ZLFor load impedance, l is to pass
The wire length of defeated line, Z0For the characteristic impedance of transmission line, ZinIt is the impedance value entered in terms of input port.Then there is formula:
Wherein β is propagation constant, it can be seen that transmission wire length l changes then ZinAlso it will change.Assuming that load impedance ZL
For short-circuit then ZLIt is 0, then Zin=jZ0th β l, then port Impedance ZinIt will change with β l at tangent.And the l in practical application
The wire length that transmission line should be equal to gos deep into distance with groove plus the protrusion in radio frequency adapter, therefore adjusts protrusion and go deep into groove
Distance is, it can be achieved that entire transmission line output impedance ZinFine tuning.
In conclusion the threaded connection of male connector and female in radio frequency adapter provided by the invention is the side by spiral
Formula realizes the fine tuning of length of transmission line, and the cooperation after fine tuning by screw makes male connector and the fixed relative position of female, so that fine tuning
Length of transmission line afterwards is more stable.Capacitor dielectric body is increased on the basis of existing female so that the first center conductor with
When second center conductor matches adjusting length of transmission line, the performance of coaxial radio-frequency transmission line is unaffected, provided by the invention
For radio frequency adapter in the case where influencing minimum to radio-frequency performance, Insertion Loss is not inferior to 0.008dB, and standing-wave ratio is not inferior to 1.1, can
DC~400MHz frequency range is realized to finely tune the length of transmission line of coaxial radio-frequency transmission line.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (4)
1. a kind of radio frequency adapter, which is characterized in that including be separately positioned on two coaxial cable transmission line one end male connector and
Female；
The male connector includes the first center conductor, the first outer conductor of tubular and first insulator；First center conductor is same
Axis is arranged inside first outer conductor, and the first insulator, which is filled with, to be led in first outer conductor with the first center
Between body；Described first center conductor axial direction one end is stretched out except the first outer conductor；The inner wall of first outer conductor is equipped with
Internal screw thread；The inner wall of first outer conductor is equipped with threaded hole；
The female includes the second outer conductor, the second center conductor, capacitor dielectric body and the second insulator of tubular；Described second
Center conductor, capacitor dielectric body and second insulator are co-axially located inside second outer conductor；The capacitor dielectric body and
Second insulator is respectively sleeved on the second center conductor, and between second outer conductor and the second center conductor；Institute
The outer wall for stating the second outer conductor is equipped with the external screw thread matched with the internal screw thread on the inner wall of the first outer conductor；In described first
Heart conductor is the protrusion of cylindrical shape；Second center conductor is equipped with axial blind hole and is adapted with the protrusion；Described
One center conductor is slidably connected with the second center conductor；
Screw, which passes through the threaded hole locking on the first outer conductor inner wall, makes male connector and the fixed relative position of female.
2. radio frequency adapter according to claim 1, which is characterized in that the top of the protrusion is tip-like.
3. radio frequency adapter according to claim 1, which is characterized in that it is described protrusion protrusion first insulator distance be
20mm。
4. radio frequency adapter according to claim 1, which is characterized in that set on the inner wall of the first outer conductor of the male connector
There is the cricoid first weak property magnet；The outer wall of second outer conductor of the female is equipped with cricoid mutual with the first weak property magnet
The the second weak property magnet attracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795518.8A CN106169684B (en) | 2016-08-31 | 2016-08-31 | A kind of radio frequency adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795518.8A CN106169684B (en) | 2016-08-31 | 2016-08-31 | A kind of radio frequency adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106169684A CN106169684A (en) | 2016-11-30 |
| CN106169684B true CN106169684B (en) | 2019-04-30 |
Family
ID=57376338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610795518.8A Active CN106169684B (en) | 2016-08-31 | 2016-08-31 | A kind of radio frequency adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106169684B (en) |
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| CN2481019Y (en) * | 2001-05-16 | 2002-03-06 | 四川省中光高技术研究所 | Coaxial adapter |
| CN1431738A (en) * | 2003-02-14 | 2003-07-23 | 王德言 | High performance radio frequeney connector |
| CN2598207Y (en) * | 2003-02-14 | 2004-01-07 | 王德言 | High-performance radio frequency connector |
| CN2899175Y (en) * | 2006-04-17 | 2007-05-09 | 成都新欣神风电子科技有限公司 | Coaxial radio-frequency filter connector |
| CN101217223A (en) * | 2007-01-04 | 2008-07-09 | 南京依纳科技有限公司 | Small RF coaxial connector |
| CN204045890U (en) * | 2014-08-28 | 2014-12-24 | 北京无线电计量测试研究所 | A kind of phase place adjustable radio frequency cable connector |
| CN103354450B (en) * | 2012-10-24 | 2015-12-02 | 杭州祺来电子有限公司 | Radio frequency signal ground return isolator |
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| CN201230088Y (en) * | 2008-06-04 | 2009-04-29 | 富士康(昆山)电脑接插件有限公司 | RF connector |
| CN102157870B (en) * | 2010-12-31 | 2014-04-30 | 上海航天科工电器研究院有限公司 | Magnetic radio frequency (RF) coaxial connector |
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| CN203521813U (en) * | 2013-10-29 | 2014-04-02 | 成都九华圆通科技发展有限公司 | Adjustable radio frequency coaxial connector |
| CN204464684U (en) * | 2015-03-27 | 2015-07-08 | 福州迈可博电子科技有限公司 | A kind of SMA phase place adjustable radio frequency joint |
| CN205992645U (en) * | 2016-08-31 | 2017-03-01 | 福建星海通信科技有限公司 | A kind of radio frequency adapter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481019Y (en) * | 2001-05-16 | 2002-03-06 | 四川省中光高技术研究所 | Coaxial adapter |
| CN1431738A (en) * | 2003-02-14 | 2003-07-23 | 王德言 | High performance radio frequeney connector |
| CN2598207Y (en) * | 2003-02-14 | 2004-01-07 | 王德言 | High-performance radio frequency connector |
| CN2899175Y (en) * | 2006-04-17 | 2007-05-09 | 成都新欣神风电子科技有限公司 | Coaxial radio-frequency filter connector |
| CN101217223A (en) * | 2007-01-04 | 2008-07-09 | 南京依纳科技有限公司 | Small RF coaxial connector |
| CN103354450B (en) * | 2012-10-24 | 2015-12-02 | 杭州祺来电子有限公司 | Radio frequency signal ground return isolator |
| CN204045890U (en) * | 2014-08-28 | 2014-12-24 | 北京无线电计量测试研究所 | A kind of phase place adjustable radio frequency cable connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106169684A (en) | 2016-11-30 |
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