CN106058403A - Device for lowering transmission loss in feeder tube - Google Patents
Device for lowering transmission loss in feeder tube Download PDFInfo
- Publication number
- CN106058403A CN106058403A CN201610399529.4A CN201610399529A CN106058403A CN 106058403 A CN106058403 A CN 106058403A CN 201610399529 A CN201610399529 A CN 201610399529A CN 106058403 A CN106058403 A CN 106058403A
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- China
- Prior art keywords
- flange
- loss
- groove
- pipe
- face
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
- H01P3/127—Hollow waveguides with a circular, elliptic, or parabolic cross-section
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- Waveguides (AREA)
- Waveguide Connection Structure (AREA)
Abstract
The invention discloses a device for lowering transmission loss in a feeder tube. The device has the characteristics that the device comprises an interface waveguide tube, a butt joint waveguide tube and a dust blocking net, wherein the head end of the interface waveguide tube is provided with an interface flange, the end surface of the interface flange is provided with at least one annular slot, the diameter of the annular sealing slot is greater than the diameter of a wedge-shaped annular slot, and an insulator filling material is arranged in one annular slot; the head end of the butt joint waveguide tube is provided with a butt joint flange, and the end surface of the butt joint flange is flat; and the dust blocking net is arranged between the end surface of the butt joint flange and the end surface of the interface flange, and the butt joint flange and the interface flange are fixed through a plurality of fasteners. When the device for lowering the transmission loss in the feeder tube is used, the diffraction and the leakage of electromagnetic wave on the butt joint flange interface in a waveguide tube transmission process can be effectively avoided, and transmission power is protected from losses so as to guarantee the transmission efficiency and the transmission safety of the waveguide tube.
Description
Technical field
The present invention relates to high-frequency transmission technical field, be specifically related to a kind of reduction and present the device of loss in pipe.
Background technology
Waveguide is conventional high-frequency transmission, power delivery means, but is because being commonly used in antivacuum sealing state, so
When the high frequency of transmission is the highest or the frequency wavelength of transmission be centimetre or millimeter time, it is easy in the generation of abutted flange seam
The diffraction of electromagnetic wave and leakage, cause the power of transmission loss occur.
Meanwhile, the electromagnetic wave revealed at flange-interface the most easily results in personal injury caused by an accident or other influences is to normal electromagnetic wave
The accident of work.
Additionally, traditional flange is also easily because reasons such as the infiltrations of the impurity such as water or dust, can cause bigger
Power attenuation or waveguide such as burn at the major accident.
The present invention is done for the loss of contingent electromagnetic power and electromagnetic wave leakage during waveguide transmissions just
Improvement process.
Summary of the invention
For the above-mentioned problems in the prior art, now provide a kind of and reduce the device of loss in feedback pipe, it is intended to
It is prevented effectively from abutted flange seam during waveguide transmissions and produces diffraction and the leakage of electromagnetic wave, prevent through-put power from occurring
Loss, and then ensure waveguide transmissions efficiency and transmission security.
Concrete technical scheme is as follows:
A kind of reduction presents the device of loss in pipe, has the feature that, including:
Interface wave conduit, the head end of described interface wave conduit is provided with flange, the end face of described flange be provided with to
A few endless groove；
The diameter of described annular seal pocket is more than the diameter of described wedge-shaped annular groove；
It is provided with insulator in endless groove described in and loads material；
Docking waveguide, the head end of described docking waveguide is provided with abutted flange, and the end face of described abutted flange is smooth；
Dust-break net, described dust-break net is located between the end face of described abutted flange and the end face of described flange；
The end face of described abutted flange offsets with the end face of described flange, makes described interface wave conduit dock with described
Waveguide is coaxial docking；
Described abutted flange is fixed by some securing members with described flange.
Above-mentioned a kind of reduction presents the device of loss in pipe, and wherein, the end face of described flange can be provided with one heart
The first endless groove and the second endless groove, the diameter of wherein said first endless groove is more than the diameter of described second endless groove.
Above-mentioned a kind of reduction presents the device of loss in pipe, wherein, is provided with described insulation in described first endless groove
Body loads material.
Above-mentioned a kind of reduction presents the device of loss in pipe, and wherein, the degree of depth of described first endless groove is the whole of λ/4
Several times, the wavelength of the high frequency in feedback pipe during wherein λ is described interface wave conduit.
Above-mentioned a kind of reduction presents the device of loss in pipe, and wherein, the diameter of described wedge-shaped annular groove connects with described
The integral multiple that difference in internal diameters is λ/4 of mouth waveguide.
Above-mentioned a kind of reduce the device of loss in feedback pipe, wherein, the diameter of described first endless groove and described the
The diameter difference of two endless grooves is the integral multiple of λ/4.
Above-mentioned a kind of reducing the device of loss in feedback pipe, wherein, the end face of described flange can be provided with one the
Three endless grooves.
Above-mentioned a kind of reduction presents the device of loss in pipe, wherein, is provided with described insulation in described 3rd endless groove
Body loads material.
Above-mentioned a kind of reduction presents the device of loss in pipe, and wherein, the degree of depth of described 3rd endless groove is
Wherein, ε is the dielectric constant of described sealed insulating material, and λ is the wavelength of the high frequency in the feedback pipe in described interface wave conduit.
Above-mentioned a kind of reduction presents the device of loss in pipe, and wherein, the diameter of described 3rd endless groove connects with described
The integral multiple that difference in internal diameters is λ/4 of mouth waveguide.
The good effect of technique scheme is:
Reduce the device of loss in feedback pipe and be opened at least one endless groove of the end face of flange by setting,
And insulator is set in an endless groove and loads material, thus realize sealing.Simultaneously as be provided with endless groove, thus effectively
When avoiding high frequency power to transmit in the waveguide produce power attenuation and high frequency reveal, especially at waveguide and waveguide
The loss of junction and leakage.Meanwhile, the present invention is in addition to reducing high frequency power loss in the transmission, moreover it is possible to reduce because
High frequency is revealed, especially the leakage of ultra-high frequency and the personnel that cause accidentally injure or damage peripheral equipment equipment.
Accompanying drawing explanation
Fig. 1 is that a kind of of the present invention reduces the structural representation of a kind of embodiment of the device of loss in feedback pipe.
Fig. 2 is that a kind of of the present invention reduces the structural representation of the another kind of embodiment of the device of loss in feedback pipe.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, real below
Execute the technical scheme that example combines accompanying drawing 1 to Fig. 2 and provide the present invention to be specifically addressed.
Fig. 1 is that a kind of of the present invention reduces the structural representation of a kind of embodiment of the device of loss in feedback pipe.Fig. 2
A kind of for the present invention reduces the structural representation of the another kind of embodiment of the device of loss in feedback pipe.Refer to Fig. 1 extremely
Shown in Fig. 2, it is shown that a kind of reduce the device of loss in feedback pipe, have the feature that, including: interface wave conduit 1, connect
Mouth flange 2, docking waveguide 3, abutted flange 4 and dust-break net 5.
Concrete, the head end of described interface wave conduit 1 is provided with flange 2, and the end face of described flange 2 is provided with at least
One endless groove 21.It is provided with insulator in endless groove 21 described in and loads material 22.It is right that the head end of described docking waveguide 3 is provided with
Acting flange 4, the end face of described abutted flange 4 is smooth.Described dust-break net 5 is located at the end face of described abutted flange 4 and described interface
Between the end face of flange 2.The end face of described abutted flange 4 offsets with the end face of described flange 2, makes described interface wave conduit
1 is coaxial docking with the described waveguide 3 that docks.Described abutted flange 4 is fixed by some securing members with described flange 2.
By above-mentioned setting, described endless groove can effectively avoid high frequency power at described interface wave conduit and described right
The power attenuation and the high frequency that produce when connecing transmission in waveguide are revealed, especially in described interface wave conduit and described docking waveguide
Pipe junction, the loss between the end face of the most described flange and described abutted flange and leakage.Meanwhile, described by arranging
Insulation loads material, can the most effectively prevent the impurity such as water or dust by the connection of described flange Yu described abutted flange
Place enters described interface wave conduit and docks in waveguide with described.Then it is prevented from entering into waveguide by arranging described dust-break net
The further diffusion of the impurity such as the dust in pipe.
Fig. 1 is that a kind of of the present invention reduces the structural representation of a kind of embodiment of the device of loss in feedback pipe.As
Shown in Fig. 1, as in a kind of preferred embodiment, the end face of described flange 2 can be provided with the first concentric endless groove 211 with
And second endless groove 212, the diameter of wherein said first endless groove 211 is more than the diameter of described second endless groove 212.
Meanwhile, in the above-described embodiments, it is provided with described insulator in described first endless groove 211 and loads material 22.
Further, in the above-described embodiments, the integral multiple that the degree of depth is λ/4 of described first endless groove 211, wherein λ is
The wavelength of the high frequency in feedback pipe in described interface wave conduit 2.
It addition, in the above-described embodiments, the diameter of described first endless groove 211 and the difference in internal diameters of described interface wave conduit 1
Integral multiple for λ/4.
Meanwhile, in the above-described embodiments, the diameter of described first endless groove 211 and the diameter of described second endless groove 212
Difference is the integral multiple of λ/4.
Above-described embodiment is the waveguide of a kind of non-coaxial feedback pipe, and its feed power is suitable frequency by hollow feedback pipe
Electromagnetic power be transported to destination.Arranged by the parameters in above-described embodiment, thus its feedback pipe links by described
Securing member is fixed link described flange and described abutted flange.Electromagnetic wave in feedback pipe is at described interface wave conduit
With when described docking waveguide is propagated, it is lost hardly, but when by described flange and described abutted flange,
Excess loss can occur.Electromagnetic wave can along the contact surface of described flange and described abutted flange from waveguide inner surface to
Described flange external diffraction, without described secondth endless groove, electromagnetic wave can to external diffraction and finally be leaked to always
Outside waveguide, thus cause added power dissipation or electromagnetic wave leakage accident, if there being described second endless groove and described
When described in the positional distance of the second endless groove, the inner surface of interface wave conduit is λ/4, electromagnetic wave will change original to external diffraction
Direction, and then diffraction in described second endless groove, because the wavelength of the design of described second endless groove groove and electromagnetic wave is close
Relevant, diffraction enters the electromagnetic wave of described second endless groove to be encountered bottom described second endless groove again to described second ring-type
During the outside diffraction of groove, can and later diffraction enter the electromagnetic wave of described second endless groove and cancel each other, thus realize stoping electricity
The purpose that magnetic wave is propagated along the end face of described flange to described flange external diffraction, and then reduce extra electromagnetism on earth
Power attenuation and the danger of electromagnetic wave leakage.
Fig. 2 is that a kind of of the present invention reduces the structural representation of the another kind of embodiment of the device of loss in feedback pipe.
As in figure 2 it is shown, as in a kind of preferred embodiment, the end face of described flange 2 can be provided with one the 3rd endless groove 213.
Meanwhile, in the above-described embodiments, it is provided with described insulator in described 3rd endless groove 213 and loads material 22.
Further, in the above-described embodiments, the degree of depth of described 3rd endless groove 213 isWherein, ε is described
The dielectric constant of sealed insulating material 22, λ is the wavelength of the high frequency in the feedback pipe in described interface wave conduit 1.
Meanwhile, in the above-described embodiments, the diameter of described 3rd endless groove 213 and the difference in internal diameters of described interface wave conduit 1
Integral multiple for λ/4.
Above-described embodiment is the waveguide of another kind of non-coaxial feedback pipe, and its feed power is suitable frequency by hollow feedback pipe
The electromagnetic power of rate is transported to destination.Arranged by the parameters in above-described embodiment, thus its feedback pipe links by institute
State securing member and described flange and described abutted flange are fixed link.Electromagnetic wave in feedback pipe is in described interface waveguides
When pipe and described docking waveguide are propagated, it is lost hardly, but by described flange and described abutted flange
Time, it may occur that excess loss.Electromagnetic wave can be along the contact surface of described flange and described abutted flange table in waveguide
Towards described flange external diffraction, without described 3rd endless groove, electromagnetic wave can to external diffraction and finally be revealed always
Outside waveguide, thus cause added power dissipation or electromagnetic wave leakage accident, if there being described 3rd endless groove, and institute
When stating that described in the positional distance of the 3rd endless groove, the inner surface of interface wave conduit is λ/4, electromagnetic wave will change and originally outwards spread out
Penetrate direction, and then diffraction in described 3rd endless groove, because the wavelength of the design of described 3rd endless groove groove and electromagnetic wave is close
Cut is closed, and diffraction enters the electromagnetic wave of described 3rd endless groove to be encountered bottom described 3rd endless groove again to described 3rd ring
During the outside diffraction of shape groove, can and later diffraction enter the electromagnetic wave of described 3rd endless groove and cancel each other, thus realize stoping
The purpose that electromagnetic wave is propagated along the end face of described flange to described flange external diffraction, and then reduce additional electric on earth
Magnetic power loss and the danger of electromagnetic wave leakage.
What the present embodiment provided reduces the device of loss in feedback pipe, is opened in the end face of flange by setting
At least one endless groove, and insulator filling material is set in an endless groove, thus realize sealing.Simultaneously as be provided with
Endless groove, thus the power attenuation produced when effectively avoiding high frequency power to transmit in the waveguide and high frequency are revealed, especially
In waveguide and the loss of waveguide junction and leakage.Meanwhile, the present invention is except reducing high frequency power damage in the transmission
Outside consumption, moreover it is possible to reduce the personnel caused because of the leakage of high frequency leakage, especially ultra-high frequency and accidentally injure or damage periphery instrument
Device equipment.
These are only preferred embodiment of the present invention, not thereby limit embodiments of the present invention and protection domain, right
For those skilled in the art, it should can appreciate that the equivalent done by all utilization description of the invention and diagramatic content is replaced
Change and obviously change obtained scheme, all should be included in protection scope of the present invention.
Claims (10)
1. one kind is reduced the device of loss in feedback pipe, it is characterised in that including:
Interface wave conduit, the head end of described interface wave conduit is provided with flange, and the end face of described flange is provided with at least one
Individual endless groove；
It is provided with insulator in endless groove described in and loads material；
Docking waveguide, the head end of described docking waveguide is provided with abutted flange, and the end face of described abutted flange is smooth；
Dust-break net, described dust-break net is located between the end face of described abutted flange and the end face of described flange；
The end face of described abutted flange offsets with the end face of described flange, makes described interface wave conduit dock waveguide with described
Pipe is coaxial docking；
Described abutted flange is fixed by some securing members with described flange.
A kind of reduction the most according to claim 1 presents the device of loss in pipe, it is characterised in that described flange
End face can be provided with the first concentric endless groove and the second endless groove, the diameter of wherein said first endless groove is more than described the
The diameter of two endless grooves.
The most according to claim 2 a kind of reduce the device of loss in feedback pipe, it is characterised in that described first ring-type
It is provided with described insulator in groove and loads material.
The most according to claim 2 a kind of reduce the device of loss in feedback pipe, it is characterised in that described first ring-type
The degree of depth of groove is the integral multiple of λ/4, and wherein, λ is the wavelength of the high frequency in the feedback pipe in described interface wave conduit.
The most according to claim 2 a kind of reduce the device of loss in feedback pipe, it is characterised in that described first ring-type
The diameter of groove and the integral multiple that difference in internal diameters is λ/4 of described interface wave conduit.
The most according to claim 2 a kind of reduce the device of loss in feedback pipe, it is characterised in that described first ring-type
The diameter of groove and the integral multiple that diameter difference is λ/4 of described second endless groove.
A kind of reduction the most according to claim 1 presents the device of loss in pipe, it is characterised in that described flange
End face can be provided with one the 3rd endless groove.
The most according to claim 7 a kind of reduce the device of loss in feedback pipe, it is characterised in that described 3rd ring-type
It is provided with described insulator in groove and loads material.
The most according to claim 7 a kind of reduce the device of loss in feedback pipe, it is characterised in that described 3rd ring-type
The degree of depth of groove isWherein, ε is the dielectric constant of described sealed insulating material, and λ is the feedback pipe in described interface wave conduit
In the wavelength of high frequency.
A kind of reduction the most according to claim 7 presents the device of loss in pipe, it is characterised in that described 3rd ring
The diameter of shape groove and the integral multiple that difference in internal diameters is λ/4 of described interface wave conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399529.4A CN106058403A (en) | 2016-06-07 | 2016-06-07 | Device for lowering transmission loss in feeder tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399529.4A CN106058403A (en) | 2016-06-07 | 2016-06-07 | Device for lowering transmission loss in feeder tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106058403A true CN106058403A (en) | 2016-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399529.4A Pending CN106058403A (en) | 2016-06-07 | 2016-06-07 | Device for lowering transmission loss in feeder tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058403A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04284701A (en) * | 1991-03-14 | 1992-10-09 | Fujitsu Ltd | Connection member for waveguide |
| JP2009218794A (en) * | 2008-03-10 | 2009-09-24 | Nec Corp | Flange device and choke flange |
| US20090309680A1 (en) * | 2006-10-31 | 2009-12-17 | Mitsubishi Electric Corporation | Waveguide connection structure |
| CN201838688U (en) * | 2009-12-16 | 2011-05-18 | 中国电子科技集团公司第十六研究所 | Microwave low-loss waveguide vacuum window |
| CN204031496U (en) * | 2014-08-29 | 2014-12-17 | 南京三乐微波技术发展有限公司 | A kind of preventing dust high-temperature medium waveguide assembly |
| CN105633524A (en) * | 2016-03-14 | 2016-06-01 | 成都天奥电子股份有限公司 | Ridge waveguide structure capable of improving passive intermodulation in ridge waveguide connection |
-
2016
- 2016-06-07 CN CN201610399529.4A patent/CN106058403A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04284701A (en) * | 1991-03-14 | 1992-10-09 | Fujitsu Ltd | Connection member for waveguide |
| US20090309680A1 (en) * | 2006-10-31 | 2009-12-17 | Mitsubishi Electric Corporation | Waveguide connection structure |
| JP2009218794A (en) * | 2008-03-10 | 2009-09-24 | Nec Corp | Flange device and choke flange |
| CN201838688U (en) * | 2009-12-16 | 2011-05-18 | 中国电子科技集团公司第十六研究所 | Microwave low-loss waveguide vacuum window |
| CN204031496U (en) * | 2014-08-29 | 2014-12-17 | 南京三乐微波技术发展有限公司 | A kind of preventing dust high-temperature medium waveguide assembly |
| CN105633524A (en) * | 2016-03-14 | 2016-06-01 | 成都天奥电子股份有限公司 | Ridge waveguide structure capable of improving passive intermodulation in ridge waveguide connection |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161026 |