CN108281742A - Exempt to inflate elliptical waveguide and preparation method thereof - Google Patents
Exempt to inflate elliptical waveguide and preparation method thereof Download PDFInfo
- Publication number
- CN108281742A CN108281742A CN201810053078.8A CN201810053078A CN108281742A CN 108281742 A CN108281742 A CN 108281742A CN 201810053078 A CN201810053078 A CN 201810053078A CN 108281742 A CN108281742 A CN 108281742A
- Authority
- CN
- China
- Prior art keywords
- inflate
- elliptical
- waveguide
- round tube
- low loss
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims description 15
- 238000011049 filling Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 29
- 229920001684 low density polyethylene Polymers 0.000 claims description 18
- 239000004702 low-density polyethylene Substances 0.000 claims description 18
- 229920001903 high density polyethylene Polymers 0.000 claims description 17
- 239000004700 high-density polyethylene Substances 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- -1 polyethylene Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 239000002667 nucleating agent Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 206010000269 abscess Diseases 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000010261 cell growth Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000006911 nucleation Effects 0.000 claims description 3
- 238000010899 nucleation Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01P3/122—Dielectric loaded (not air)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
- H01P11/002—Manufacturing hollow waveguides
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides one kind and exempts to inflate elliptical waveguide, including：Low loss dielectric obturator, elliptical wave conduit and oversheath；The elliptical wave catheter interior is full of the low loss dielectric obturator；The oversheath is coated on the outer wall of the elliptical wave conduit.It the advantage is that the filling by low loss dielectric so that without gas in waveguide, just there is no causing vapor to pour in down a chimney into the situation inside waveguide due to draught head, under the premise of without using charger, can ensure the long-term drying in elliptical wave conduit；And it can be slightly increased the mechanical strength of waveguide, improve convenience when storage uses.
Description
Technical field
The present invention relates to a kind of waveguide and preparation method thereof, more particularly to one kind is exempted to inflate elliptical waveguide and its preparation side
Method.
Background technology
In burning sun in the case of being exposed to the sun, waveguide black oversheath absorbs more heat so that the entirety of waveguide
Temperature is at 50 degree or more.Once unexpected rainfall can lead to temperature decrease in waveguide.In this case, the gas inside and outside waveguide
Swaging is at larger pressure difference so that vapor suck-back outside waveguide is into waveguide.It is condensed into water droplet meeting after intrusion vapor
Influence waveguide decaying and reflecting properties.
Existing technology is to keep positive differential pressure (10-30KPa) to waveguide inside filling dry air, and periodic maintenance is dry
Dry air inflator device, the phenomenon that vapor suck-back caused by capable of just preventing inside and outside differential pressure from changing, occur；It just can guarantee waveguide
Drying is kept in pipe.But waveguide often will appear because the problems such as Rig up error, waveguide aging, high-low temperature difference, lead to wave
Conduit gas leakage.Construction cost and the maintenance cost for being bound to cause waveguide in this way are high；Energy in use increases.
Invention content
The present invention provides one kind and exempts to inflate elliptical waveguide and preparation method thereof so that waveguide is not necessarily to inner inflatable, reduces
Production and plant maintenance, can use under the working environment for not having inflation；The filling of low loss dielectric ensures in waveguide
It is dry；Prior art problem is solved, to overcome the deficiencies of existing technologies.
The present invention provides one kind and exempts to inflate elliptical waveguide, including：Low loss dielectric obturator, elliptical wave conduit and outer shield
Set；The elliptical wave catheter interior is full of the low loss dielectric obturator；The oversheath is coated on the elliptical wave conduit
Outer wall on.
Further, the present invention provides one kind and exempts to inflate elliptical waveguide, can also have the feature that：Low loss dielectric is filled out
It is polyethylene foamed to fill body.
Further, the present invention provides one kind and exempts to inflate elliptical waveguide, can also have the feature that：Polyethylene foamed packet
It includes：High density polyethylene (HDPE) (HDPE) and low density polyethylene (LDPE) (LDPE)；The mass fraction of high density polyethylene (HDPE) (HDPE) is：70~
80 parts；The mass fraction of low density polyethylene (LDPE) (LDPE) is：20~30 parts.
Further, the present invention provides one kind and exempts to inflate elliptical waveguide, can also have the feature that：Polyethylene foamed is also
Including：The nucleating agent that mass fraction is 0.01-1 part.
In addition, the present invention provides a kind of preparation method for exempting to inflate elliptical waveguide, include the following steps：Round tube is prepared into
Type；Low loss dielectric obturator is filled in round tube；Round tube is prepared into circle corrugated pipe；Circle corrugated pipe is pressed
It is flat, form elliptical wave conduit；The extrusion molding outside elliptical wave conduit coats oversheath.
Further, the present invention provides a kind of preparation method for exempting to inflate elliptical waveguide, can also have the feature that：Institute
It states low loss dielectric obturator to shape using physical blowing, include the following steps, polymer melting and mixing, obtain uniform poly-
Polymer melt；Nitrogen is injected into polymer melt；Polymer melt mixes nucleation with nitrogen, forms abscess；Polymer melt
It is squeezed out to round tube with the mixture of nitrogen, pressure release leads to cell growth；Cooling, cell stabilization and insulation system
Condensation.
Further, the present invention provides a kind of preparation method for exempting to inflate elliptical waveguide, can also have the feature that：Nitrogen
Gas injection pressure is 400~500Bar, is injected by gas injection needle.
Further, the present invention provides one kind and exempts to inflate elliptical waveguide, can also have the feature that：It will using extruding machine
The mixture of polymer melt and nitrogen is squeezed into the round tube；The size of the mold core of the extruding machine and the round tube
Match.
Further, the present invention provides a kind of preparation method for exempting to inflate elliptical waveguide, can also have the feature that：Institute
It states round tube and prepares molding；Include the following steps, copper strip trimming is at scheduled width；If forming tubulose through arterial highway shaping mould；It adopts
At argon arc welding technique solder joint；Plug die sizing forms the copper pipe of required diameter.
The present invention provides one kind and exempts to inflate elliptical waveguide, passes through the filling of low loss dielectric so that without gas in waveguide
Body, just there is no causing vapor to pour in down a chimney into the situation inside waveguide due to draught head, in the premise without using charger
Under, it can ensure the long-term drying in elliptical wave conduit；And it can be slightly increased the mechanical strength of waveguide, improving storage makes
The convenience of used time.
Description of the drawings
Fig. 1 is the sectional view for exempting to inflate elliptical waveguide.
Fig. 2 is the semi-cutaway for exempting to inflate elliptical waveguide.
Specific implementation mode
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As depicted in figs. 1 and 2, in the present embodiment, exempt to inflate elliptical waveguide, including：Low loss dielectric obturator 10, ellipse
Waveguide 20 and oversheath 30.20 inside of elliptical wave conduit is full of low loss dielectric obturator 10.Low loss dielectric obturator 10
In ripple full of elliptical wave conduit 20.Oversheath 30 is coated on the outer wall of elliptical wave conduit 20.
In the present embodiment, low loss dielectric obturator 10 is physical blowing polyethylene；It is of course possible to use other similar to low
Lossy medium material does not enumerate in detail as long as not influencing to decay and reflect.Physical blowing polyethylene uses high density
Polyethylene (HDPE), low density polyethylene (LDPE) (LDPE) and a small amount of nucleating agent mix.In proportioning, high density polyethylene (HDPE)
(HDPE) mass fraction is 70~80 parts；The mass fraction of low density polyethylene (LDPE) (LDPE) is 20~30 parts；Nucleating agent
0.01-1 part.The material of elliptical wave conduit 20 is copper.
The preparation method for exempting to inflate elliptical waveguide is as follows：
Step A, round tube prepares molding.
Copper strip trimming is at scheduled width.If copper strips passes through arterial highway shaping mould and forms tubulose again.Using argon arc welding welding seam
Place forms tubing.Using plug die to tubing sizing, the copper pipe of required diameter is formed.
Step B, low loss dielectric obturator is filled in round tube.
The foaming of low loss dielectric obturator polyethylene foamed and filling process：
Polyethylene polymer melts and mixing, obtains uniform polyethylene polymer melt.To polyethylene polymer melt
Interior injection nitrogen；Nitrogen pressure is pressurized to 400~500Bar by nitrogen injected system, injects foaming host by gas injection needle.It is poly-
Ethene polymers melt mixes nucleation with nitrogen, forms abscess.Finally, the mixture of polyethylene polymer melt and nitrogen leads to
It crosses cross head extruder to squeeze out to round tube, pressure release leads to cell growth.Polyethylene foamed is cooling in round tube,
The condensation of cell stabilization and insulation system.
The mold core of extruding machine can be replaced, and the mold core of extruding machine and the matching size of round tube, range is in 10~Φ of Φ
80mm。
Step C, round tube is prepared by circle corrugated pipe by embossing head.
Step D, it flattens equipment to flatten circle corrugated pipe, be formed into elliptical wave conduit.
Step E, the extrusion molding outside elliptical wave conduit coats oversheath.
Embodiments above only describes the main feature and innovative point of this programme.Those skilled in the art should
Solution, this programme are not restricted to the described embodiments.Under the premise of not departing from the innovation point and protection domain, this programme also has
Various change, these changes and improvements are fallen in the claimed range of this programme.The claimed range of this programme by
Appended claims and its equivalent limit.
Claims (9)
1. one kind is exempted to inflate elliptical waveguide, it is characterised in that：Including low loss dielectric obturator, elliptical wave conduit and oversheath；
Wherein, the elliptical wave catheter interior is full of the low loss dielectric obturator；
The oversheath is coated on the outer wall of the elliptical wave conduit.
2. as described in claim 1 exempt to inflate elliptical waveguide, it is characterised in that：
Wherein, the low loss dielectric obturator is polyethylene foamed.
3. as claimed in claim 2 exempt to inflate elliptical waveguide, it is characterised in that：
Wherein, the polyethylene foamed includes：High density polyethylene (HDPE) (HDPE) and low density polyethylene (LDPE) (LDPE)；
The mass fraction of the high density polyethylene (HDPE) (HDPE) is：70~80 parts；
The mass fraction of low density polyethylene (LDPE) (LDPE) is：20~30 parts.
4. as claimed in claim 3 exempt to inflate elliptical waveguide, it is characterised in that：
Wherein, the polyethylene foamed further includes：The nucleating agent that mass fraction is 0.01-1 part.
5. a kind of preparation method for exempting to inflate elliptical waveguide, it is characterised in that：Include the following steps,
Step A, round tube prepares molding；
Step B, low loss dielectric obturator is filled in round tube；
Step C, round tube is prepared into circle corrugated pipe；
Step D, circle corrugated pipe is flattened, forms elliptical wave conduit；
Step E, the extrusion molding outside elliptical wave conduit coats oversheath.
6. the preparation method as claimed in claim 5 for exempting to inflate elliptical waveguide, it is characterised in that：The low loss dielectric filling
Body is shaped using physical blowing, is included the following steps,
Polymer melting and mixing obtain uniform polymer melt；
Nitrogen is injected into polymer melt；
Polymer melt mixes nucleation with nitrogen, forms abscess；
The mixture of polymer melt and nitrogen is squeezed out to round tube, and pressure release leads to cell growth；
It is cooling, the condensation of cell stabilization and insulation system.
7. the preparation method as claimed in claim 6 for exempting to inflate elliptical waveguide, it is characterised in that：
Wherein, nitrogen injection pressure is 400~500Bar, is injected by gas injection needle.
8. the preparation method as claimed in claim 6 for exempting to inflate elliptical waveguide, it is characterised in that：
Using extruding machine by the mixture of polymer melt and nitrogen, squeeze into the round tube；The mold core of the extruding machine with
The matching size of the round tube.
9. the preparation method as described in claim 1 for exempting to inflate elliptical waveguide, it is characterised in that：The round tube is prepared into
Type；Include the following steps,
Copper strip trimming is at scheduled width；If forming tubulose through arterial highway shaping mould；At argon arc welding technique solder joint；It is fixed
Diameter mould sizing forms the copper pipe of required diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053078.8A CN108281742A (en) | 2018-01-17 | 2018-01-17 | Exempt to inflate elliptical waveguide and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053078.8A CN108281742A (en) | 2018-01-17 | 2018-01-17 | Exempt to inflate elliptical waveguide and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108281742A true CN108281742A (en) | 2018-07-13 |
Family
ID=62804053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053078.8A Pending CN108281742A (en) | 2018-01-17 | 2018-01-17 | Exempt to inflate elliptical waveguide and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108281742A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020109559A1 (en) * | 2001-01-26 | 2002-08-15 | Spinner Gmbh Elektrotechnische Fabrik | Waveguide fitting |
| DE102006015338A1 (en) * | 2006-04-03 | 2007-10-11 | Vega Grieshaber Kg | Waveguide transition for producing circularly polarized waves for filling level radar has two lines and planar emitter element that interact with each other to couple one polarized electromagnetic transmitting signal to waveguide |
| JP2007281712A (en) * | 2006-04-04 | 2007-10-25 | Shimada Phys & Chem Ind Co Ltd | Power terminator using aqueous medium |
| CN101399391A (en) * | 2007-09-30 | 2009-04-01 | 孙炳元 | Wideband non-loss mixing method for high-frequency signal |
| CN101582529A (en) * | 2009-05-26 | 2009-11-18 | 上海大学 | High medium small scale round waveguide with attenuation |
| CN103035331A (en) * | 2012-12-13 | 2013-04-10 | 苏州亨利通信材料有限公司 | Anti-moisture filling rope and manufacturing process of anti-moisture filling rope |
| CN105103369A (en) * | 2013-04-03 | 2015-11-25 | 索尼公司 | Waveguide, waveguide manufacturing method, and wireless transfer system |
| CN206379450U (en) * | 2016-11-26 | 2017-08-04 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Two-band radio frequency signal transmission line |
| CN207910043U (en) * | 2018-01-17 | 2018-09-25 | 上海阖煦微波技术有限公司 | Exempt to inflate elliptical waveguide |
-
2018
- 2018-01-17 CN CN201810053078.8A patent/CN108281742A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020109559A1 (en) * | 2001-01-26 | 2002-08-15 | Spinner Gmbh Elektrotechnische Fabrik | Waveguide fitting |
| DE102006015338A1 (en) * | 2006-04-03 | 2007-10-11 | Vega Grieshaber Kg | Waveguide transition for producing circularly polarized waves for filling level radar has two lines and planar emitter element that interact with each other to couple one polarized electromagnetic transmitting signal to waveguide |
| JP2007281712A (en) * | 2006-04-04 | 2007-10-25 | Shimada Phys & Chem Ind Co Ltd | Power terminator using aqueous medium |
| CN101399391A (en) * | 2007-09-30 | 2009-04-01 | 孙炳元 | Wideband non-loss mixing method for high-frequency signal |
| CN101582529A (en) * | 2009-05-26 | 2009-11-18 | 上海大学 | High medium small scale round waveguide with attenuation |
| CN103035331A (en) * | 2012-12-13 | 2013-04-10 | 苏州亨利通信材料有限公司 | Anti-moisture filling rope and manufacturing process of anti-moisture filling rope |
| CN105103369A (en) * | 2013-04-03 | 2015-11-25 | 索尼公司 | Waveguide, waveguide manufacturing method, and wireless transfer system |
| CN206379450U (en) * | 2016-11-26 | 2017-08-04 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Two-band radio frequency signal transmission line |
| CN207910043U (en) * | 2018-01-17 | 2018-09-25 | 上海阖煦微波技术有限公司 | Exempt to inflate elliptical waveguide |
Non-Patent Citations (3)
| Title |
|---|
| MANSOUR HADAD 等: "Electron Acceleration Inside a Circular and Elliptical Plasma Waveguide With Metallic Rod", 《IEEE TRANSACTIONS ON PLASMA SCIENCE》, vol. 42, no. 8, XP011555658, DOI: 10.1109/TPS.2014.2323984 * |
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