CN109950674A - Medium Wave Guide, electromagnetic wave conversion apparatus and microwave device - Google Patents
Medium Wave Guide, electromagnetic wave conversion apparatus and microwave device Download PDFInfo
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- CN109950674A CN109950674A CN201910250471.0A CN201910250471A CN109950674A CN 109950674 A CN109950674 A CN 109950674A CN 201910250471 A CN201910250471 A CN 201910250471A CN 109950674 A CN109950674 A CN 109950674A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 41
- 230000007704 transition Effects 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 14
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- 238000011161 development Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention discloses a kind of Medium Wave Guides, electromagnetic wave conversion apparatus and microwave device, Medium Wave Guide is cuboid structure, it is made of low-loss polymeric material, electromagnetic wave conversion apparatus includes the first coaxial line, second coaxial line, first medium chamber, second medium chamber, First Transition structure, second transition structure and above-mentioned Medium Wave Guide, first coaxial line, first medium chamber, first side of First Transition structure and Medium Wave Guide is sequentially connected, second coaxial line, second medium chamber, second transition structure and second side of Medium Wave Guide are sequentially connected, and first coaxial line and the second coaxial line, first medium chamber is arranged symmetrically with second medium chamber and First Transition structure and the second transition structure;Microwave device includes above-mentioned electromagnetic wave conversion apparatus.The present invention can complete efficient conversion of the electromagnetic wave in 7.2~10GHz frequency range, and performance is good, and structure is simple, is easily worked, and can better meet the development trends such as microwave device light weight, low cost, high-performance and environmental protection.
Description
Technical field
The present invention relates to a kind of electromagnetic wave conversion apparatus, especially a kind of Medium Wave Guide, electromagnetic wave conversion apparatus and microwave
Device belongs to microwave device field.
Background technique
Medium Wave Guide is the development due to fiber optic communication and is suggested, and is a kind of for constraining or the knot of guide electromagnetic waves
Structure, it can limit the electromagnetic wave transmitted in the medium.The transmission principle of Medium Wave Guide is different from traditional metal waveguide,
On the dielectric interface of different refractivity, the total reflection phenomenon of electromagnetic wave makes microwave be confined to propagate in waveguide, Medium Wave Guide
Solid core, hollow core, multi-hole center etc. can be divided into.Medium Wave Guide is compared to classical metal waveguide in millimeter wave and Terahertz frequency
Section has loss small;Power capacity is big;The advantages that structure is simple, easily fabricated.With the development of communication technology, the development of waveguide
Also it steps on a new stage, and is continually striving to towards low-power consumption, small size, reliable and stable and inexpensive direction.
According to investigations with understanding, disclosed prior art is as follows:
1) 1981, TSUKASA YONEYAMA et al. delivered " Nonradiative Dielectric Waveguide
For Millimeter-Wave Integrated Circuits " devises a kind of medium wave used in millimeter wave frequency band
It leads, and joined metal plate in dielectric wall two sides.
2) 2013, Hao-Tian Zhu et al. delivered " Design of a Broadband CPWG to
Dielectric Ridge Waveguide Transition for Terahertz Circuits " is devised a kind of in milli
The medium ridge waveguide of meter wave frequency band transmission electromagnetic wave.The medium ridge waveguide of design does not use the coat of metal, greatly reduces metal
In high frequency bring conductor losses.
3) 2014, R.Mendis et al. was devised in " Plastic ribbon THz waveguides " in terahertz
The hereby Medium Wave Guide of frequency usage.It is fed using wire chamber, devises the transition structure that a kind of air wire chamber turns Medium Wave Guide.
Summary of the invention
In view of this, the present invention provides a kind of Medium Wave Guide, electromagnetic wave conversion apparatus and microwave devices.
The first purpose of this invention is to provide a kind of Medium Wave Guide, which can make in 7.2~10GHz frequency range
With having the characteristics that light weight, low cost, structure be simple, production easy to process.
Second object of the present invention is to provide a kind of electromagnetic wave conversion apparatus, which can complete electromagnetic wave and exist
Efficient conversion in 7.2~10GHz frequency range, performance is good, and structure is simple, is easily worked, and can better meet microwave device weight
The development trends such as amount, low cost, high-performance and environmental protection.
Third object of the present invention is to provide a kind of microwave device.
The first purpose of this invention can be reached by adopting the following technical scheme that:
A kind of Medium Wave Guide, the waveguide are cuboid structure, are made of low-loss polymeric material.
Second object of the present invention can be reached by adopting the following technical scheme that:
A kind of electromagnetic wave conversion apparatus, including the first coaxial line, the second coaxial line, first medium chamber, second medium chamber,
One transition structure, the second transition structure and above-mentioned Medium Wave Guide, first coaxial line, first medium chamber, First Transition
First side of structure and Medium Wave Guide is sequentially connected, second coaxial line, second medium chamber, the second transition structure and medium wave
The second side opposite with the first side led is sequentially connected, and the first coaxial line and the second coaxial line, first medium chamber and second are situated between
Matter chamber and First Transition structure and the second transition structure are arranged symmetrically.
Further, first coaxial line is connected by the first probe with first medium chamber, second coaxial line and
It is connected by the second probe with second medium chamber.
Further, the first medium chamber is provided with first through hole, and one end of first probe and the first coaxial line are solid
Fixed to be connected, the other end is inserted into first medium chamber by first through hole;
The second medium chamber is provided with the second through-hole, and one end and the second coaxial line of second probe are fixedly linked, separately
One end is inserted into second medium chamber by the second through-hole.
Further, first probe and the second probe are metal probe.
Further, the junction and First Transition structure of the First Transition structure and first medium chamber and medium wave
The junction led is rectangle, and First Transition structure and the junction length of first medium chamber are less than First Transition structure and are situated between
The junction width of the junction length of matter waveguide, First Transition structure and first medium chamber is less than First Transition structure and medium
The junction width of waveguide;
Second transition structure and the junction of second medium chamber and the connection of the second transition structure and Medium Wave Guide
Place is rectangle, and the second transition structure and the junction length of second medium chamber are less than the second transition structure and Medium Wave Guide
Company of the junction width of junction length, the second transition structure and second medium chamber less than the second transition structure and Medium Wave Guide
Connect place's width.
Further, the First Transition structure and the second transition structure are the transition knot that media side is covered with metal
Structure.
Further, the first medium chamber and second medium chamber are the dielectric cavity that outer surface is covered with metal.
Further, the first medium chamber and second medium chamber are rectangle cavity configuration.
Third object of the present invention can be reached by adopting the following technical scheme that:
A kind of microwave device, including above-mentioned electromagnetic wave conversion apparatus.
The present invention have compared with the existing technology it is following the utility model has the advantages that
1, Medium Wave Guide of the invention is made of low-loss polymeric material, can be used in 7.2~10GHz frequency range,
Have the characteristics that light weight, low cost, structure be simple, production easy to process.
2, the present invention not only can solve dielectric cavity by the way that one section of transition structure is arranged between dielectric cavity and Medium Wave Guide
With the size difference problem on Medium Wave Guide cross section, and mode can be efficiently reduced between Medium Wave Guide and dielectric cavity and turned
Change the loss of bring electromagnetic wave.
3, the present invention uses coaxial feeding, uses in microwave measurement devices for convenience, coaxial line is made to pass through probe
It is connected with dielectric cavity, realizes conversion of the electromagnetic wave between dielectric cavity and coaxial line.
4, the present invention can complete efficient conversion of the electromagnetic wave in 7.2~10GHz frequency range, and performance is good, and structure is simple, hold
Easy processing can better meet the development trends such as microwave device light weight, low cost, high-performance and environmental protection.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the electromagnetic wave conversion apparatus of the embodiment of the present invention.
Fig. 2 is the facing structure figure of the electromagnetic wave conversion apparatus of the embodiment of the present invention.
Fig. 3 is the left side structure figure of the electromagnetic wave conversion apparatus of the embodiment of the present invention.
Fig. 4 is the overlooking structure figure of the electromagnetic wave conversion apparatus of the embodiment of the present invention.
Fig. 5 is the conversion efficiency curve figure of the electromagnetic wave conversion apparatus frequency response of the embodiment of the present invention.
Wherein, 1- Medium Wave Guide, the first coaxial line of 2-, the second coaxial line of 3-, 4- first medium chamber, 5- second medium chamber,
6- First Transition structure, the second transition structure of 7-, the first probe of 8-, the second probe of 9-, 10- first through hole, the second through-hole of 11-.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment:
As shown in Figure 1 to 4, the present invention provides a kind of electromagnetic wave conversion apparatus, which includes Medium Wave Guide 1,
One coaxial line 2, the second coaxial line 3, first medium chamber 4, second medium chamber 5, First Transition structure 6 and the second transition structure 7.
The Medium Wave Guide 1 can be used for 7.2~10GHz frequency range, use solid core Medium Wave Guide, can be by major part
Electromagnetic wave is confined to inside Medium Wave Guide 1, single-mode propagation;Medium Wave Guide 1 is cuboid structure, and by low-loss polymerization material
Material constitute, can be used in 7.2~10GHz frequency range, with light weight, low cost, simple, the easy to process production of structure spy
Point, wherein low-loss polymeric material can be polytetrafluoroethylene (PTFE) (polytetrafluoroethylene, abbreviation PTFE), height
Density polyethylene (High Density Polyethylene, abbreviation HDPE), acrylonitrile-butadiene-styrene copolymer
Materials such as (Acrylonitrile Butadiene Styrene, abbreviation ABS).
In the present embodiment, the first coaxial line 2, first medium chamber 4, First Transition structure 6 and Medium Wave Guide 1 left side successively
It is connected, the second coaxial line 3, second medium chamber 5, the second transition structure 7 and the right side of Medium Wave Guide 1 are sequentially connected, and first is same
Axis 2 and the second coaxial line 3, first medium chamber 4 and second medium chamber 5 and First Transition structure 6 and the second transition structure 7 are
To be symmetrical set.
Further, the present embodiment is fed using the first coaxial line 2 and the second coaxial line, is surveyed for convenience in microwave
It is used in metering device, the first coaxial line 2 is connected by the first probe 8 with first medium chamber 4, realizes electromagnetic wave in first medium chamber
4 and the first conversion between coaxial line 2, the second coaxial line 3 be connected with by the second probe 9 with second medium chamber 5, realization electromagnetism
Conversion of the wave between second medium chamber 5 and the second coaxial line 3;Specifically, the first probe 8 and the second probe 9 are that metal is visited
Needle, the top of first medium chamber 4 are provided with first through hole 10, and the upper end of the first probe 8 is fixedly linked with the first coaxial line 2, lower end
It is inserted into first medium chamber 4 by first through hole 10, from the figure, it can be seen that the first coaxial line 2 is located at the top of first medium chamber 4
At portion;The top of second medium chamber 5 is provided with the second through-hole 11, and one end of the second probe 9 is fixedly linked with the second coaxial line 3, separately
One end is inserted into second medium chamber 5 by the second through-hole 11, from the figure, it can be seen that the second coaxial line 3 is located at second medium chamber 5
Top at.
Further, first medium chamber 4 and second medium chamber 5 are rectangle cavity configuration, first medium chamber from the point of view of shape
4 and second medium chamber 5 from the point of view of material, be that outer surface (top surface, bottom surface, left side, right side, leading flank and trailing flank) is covered
There is the dielectric cavity of metal;First Transition structure 6 and the second transition structure 7 are prismatoid structure from the point of view of shape, have top
Face, bottom surface and four sides, top and bottom are rectangle, and the length of top surface is less than the length of bottom surface, and the width of top surface is small
Width in bottom surface, four sides be it is trapezoidal, first medium chamber 4 and second medium chamber 5 are media side from the point of view of material
It is covered with the transition structure of metal;Specifically, the right side of first medium chamber 4 is connected with the top of First Transition structure 6, and first is situated between
The right side of matter chamber 4 and the top surface size of First Transition structure 6 match, bottom and the Medium Wave Guide 1 of First Transition structure 6
Left side is connected, and the bottom surface of First Transition structure 6 and the left side size of Medium Wave Guide 1 match;The left side of second medium chamber 5
It is connected with the top of the second transition structure 7, and the top surface size phase of the left side of second medium chamber 5 and the second transition structure 7
Match, the bottom of the second transition structure 7 is connected with the right side of Medium Wave Guide 1, and the bottom surface of the second transition structure 7 and Medium Wave Guide 1
Right side size match.
It can be seen that First Transition structure 6 and the junction length of first medium chamber 4 are less than First Transition structure and medium
The junction width of the junction length of waveguide 1, First Transition structure 6 and first medium chamber 4 is less than First Transition structure 6 and is situated between
The junction width of matter waveguide 1, the junction length of the second transition structure 7 and second medium chamber 5 less than the second transition structure 7 with
The junction width of the junction length of Medium Wave Guide 1, the second transition structure 7 and second medium chamber 5 is less than the second transition structure 7
With the junction width of Medium Wave Guide 1.
The present embodiment between first medium chamber 4 and Medium Wave Guide 1 by being arranged First Transition structure 6, and second
Second transition structure 7 is set between dielectric cavity 5 and Medium Wave Guide 1, not only can solve in dielectric cavity and Medium Wave Guide cross section
Size difference problem, and the damage of the conversion bring electromagnetic wave of mode between Medium Wave Guide and dielectric cavity can be efficiently reduced
Consumption.
The electromagnetic wave conversion apparatus working principle of the present embodiment are as follows: using the first coaxial line 2 as first port, second is coaxial
Line 3 is used as second port, electromagnetic wave signal is inputted first medium chamber 4 by first port, then complete by First Transition structure 6
First coaxial line 2 arrives the conversion of 1 mode of Medium Wave Guide, and most of electromagnetic wave is confined to inside Medium Wave Guide 1, the second mistake is passed through
It crosses structure 7 and second medium chamber 5 completes the conversion of 3 mode of the 1 to the second coaxial line of Medium Wave Guide, believed electromagnetic wave by second port
Number output;As shown in figure 5, S11 indicates the return loss of first port, S21 indicates that first port is passed to the forward direction of second port
Defeated coefficient, from the figure, it can be seen that S21 is greater than -3dB in 7.2~10GHz frequency range, S11 is less than -10dB, realizes electromagnetism
Efficient conversion of the wave between Medium Wave Guide mode and coaxial ray mode.
The present embodiment additionally provides a kind of microwave device, the microwave device can be filter or other microwave devices,
May include above-mentioned electromagnetic wave conversion apparatus, the electromagnetic wave conversion apparatus can better meet microwave device light weight, it is low at
Originally, the development trends such as high-performance and environmental protection, so that microwave device has many advantages, such as that structure is simple, it is easy to process and inexpensive.
In above-described embodiment, the first medium chamber 4, second medium chamber 5, First Transition structure 6, the second transition structure 7,
First probe 8, the second probe 9 metal material can be any one of copper, aluminium, iron, tin, silver, gold and platinum, or can be
Any one alloy of copper, aluminium, iron, tin, silver, gold and platinum, it is preferred to use copper product.
In conclusion Medium Wave Guide of the invention is made of low-loss polymeric material, it can be in 7.2~10GHZ frequency range
Middle use has the characteristics that light weight, low cost, structure be simple, production easy to process;In addition, the present invention passes through in dielectric cavity
One section of transition structure is set between Medium Wave Guide, not only can solve the size difference in dielectric cavity and Medium Wave Guide cross section
Problem, and the loss of mode conversion bring electromagnetic wave between Medium Wave Guide and dielectric cavity can be efficiently reduced.
The above, only the invention patent preferred embodiment, but the scope of protection of the patent of the present invention is not limited to
This, anyone skilled in the art is in the range disclosed in the invention patent, according to the present invention the skill of patent
Art scheme and its inventive concept are subject to equivalent substitution or change, belong to the scope of protection of the patent of the present invention.
Claims (10)
1. a kind of Medium Wave Guide, the waveguide is cuboid structure, it is characterised in that: the waveguide is by low-loss polymeric material
It constitutes.
2. a kind of electromagnetic wave conversion apparatus, it is characterised in that: including the first coaxial line, the second coaxial line, first medium chamber, second
Dielectric cavity, First Transition structure, the second transition structure and Medium Wave Guide described in claim 1, first coaxial line,
First side of one dielectric cavity, First Transition structure and Medium Wave Guide is sequentially connected, second coaxial line, second medium chamber,
Two transition structures are sequentially connected with second side opposite with the first side of Medium Wave Guide, and the first coaxial line and the second coaxial line,
First medium chamber is arranged symmetrically with second medium chamber and First Transition structure and the second transition structure.
3. electromagnetic wave conversion apparatus according to claim 2, it is characterised in that: first coaxial line passes through the first probe
It is connected with first medium chamber, second coaxial line is connected with by the second probe with second medium chamber.
4. electromagnetic wave conversion apparatus according to claim 3, it is characterised in that: it is logical that the first medium chamber is provided with first
Hole, one end and the first coaxial line of first probe are fixedly linked, and the other end is inserted into first medium chamber by first through hole;
The second medium chamber is provided with the second through-hole, and one end and the second coaxial line of second probe are fixedly linked, the other end
It is inserted into second medium chamber by the second through-hole.
5. electromagnetic wave conversion apparatus according to claim 3, it is characterised in that: first probe and the second probe are
Metal probe.
6. electromagnetic wave conversion apparatus according to claim 2, it is characterised in that: the First Transition structure and first medium
The junction of the junction of chamber and First Transition structure and Medium Wave Guide is rectangle, and First Transition structure and first medium
The junction length of chamber is less than the junction length of First Transition structure and Medium Wave Guide, First Transition structure and first medium chamber
Junction width be less than First Transition structure and Medium Wave Guide junction width;
The junction of second transition structure and the junction of second medium chamber and the second transition structure and Medium Wave Guide is equal
For rectangle, and the second transition structure and the junction length of second medium chamber are less than the connection of the second transition structure and Medium Wave Guide
Junction of the junction width of director's degree, the second transition structure and second medium chamber less than the second transition structure and Medium Wave Guide
Width.
7. according to the described in any item electromagnetic wave conversion apparatus of claim 2-5, it is characterised in that: the First Transition structure and
Second transition structure is the transition structure that media side is covered with metal.
8. according to the described in any item electromagnetic wave conversion apparatus of claim 2-5, it is characterised in that: the first medium chamber and
Second medium chamber is the dielectric cavity that outer surface is covered with metal.
9. according to the described in any item electromagnetic wave conversion apparatus of claim 2-5, it is characterised in that: the first medium chamber and
Second medium chamber is rectangle cavity configuration.
10. a kind of microwave device, it is characterised in that: including the described in any item electromagnetic wave conversion apparatus of claim 2-9.
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CN201910250471.0A CN109950674A (en) | 2019-03-29 | 2019-03-29 | Medium Wave Guide, electromagnetic wave conversion apparatus and microwave device |
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Citations (7)
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CN85200035U (en) * | 1985-04-01 | 1985-10-10 | 清华大学 | Directional coupler of a wide-band dielectric waveguide |
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CN1492535A (en) * | 2002-10-23 | 2004-04-28 | ���ߵ���Ƶϵͳ��˾ | Medium single block double mold microwave delay filter |
CN105870560A (en) * | 2016-04-22 | 2016-08-17 | 中国电子科技集团公司第十二研究所 | Dual-gradually-changed transitional waveguide applied to millimeter and higher frequency point coupled cavity traveling-wave tube |
US20170201028A1 (en) * | 2016-01-11 | 2017-07-13 | Mimosa Networks, Inc. | Printed Circuit Board Mounted Antenna and Waveguide Interface |
CN107331930A (en) * | 2017-02-07 | 2017-11-07 | 四川省韬光通信有限公司 | The input and output coupled structure of dielectric waveguide filter and the method for controlling stiffness of coupling |
CN209948012U (en) * | 2019-03-29 | 2020-01-14 | 华南理工大学 | Electromagnetic wave conversion device and microwave device |
-
2019
- 2019-03-29 CN CN201910250471.0A patent/CN109950674A/en active Pending
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CN85200035U (en) * | 1985-04-01 | 1985-10-10 | 清华大学 | Directional coupler of a wide-band dielectric waveguide |
CN1313652A (en) * | 1999-12-28 | 2001-09-19 | 株式会社村田制作所 | Nonradiation circuit switching with mixed media and apparatus therewith |
CN1492535A (en) * | 2002-10-23 | 2004-04-28 | ���ߵ���Ƶϵͳ��˾ | Medium single block double mold microwave delay filter |
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CN105870560A (en) * | 2016-04-22 | 2016-08-17 | 中国电子科技集团公司第十二研究所 | Dual-gradually-changed transitional waveguide applied to millimeter and higher frequency point coupled cavity traveling-wave tube |
CN107331930A (en) * | 2017-02-07 | 2017-11-07 | 四川省韬光通信有限公司 | The input and output coupled structure of dielectric waveguide filter and the method for controlling stiffness of coupling |
CN209948012U (en) * | 2019-03-29 | 2020-01-14 | 华南理工大学 | Electromagnetic wave conversion device and microwave device |
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Title |
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YIN LI, SHI-YAN ZHOU等: "ransition Structure Between Coaxial Cable and Dielectric Rod Waveguide in Microwave Frequency", FRONT. PHYS., pages 1 - 5 * |
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