CN106099379B - Substrate integrates non-radiative Medium Wave Guide leaky-wave antenna - Google Patents
Substrate integrates non-radiative Medium Wave Guide leaky-wave antenna Download PDFInfo
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- CN106099379B CN106099379B CN201610393692.XA CN201610393692A CN106099379B CN 106099379 B CN106099379 B CN 106099379B CN 201610393692 A CN201610393692 A CN 201610393692A CN 106099379 B CN106099379 B CN 106099379B
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- planar waveguide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
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Abstract
The invention discloses a kind of substrates to integrate non-radiative Medium Wave Guide leaky-wave antenna, it is a kind of to integrate three layers of circuit structure that non-radiative Medium Wave Guide is constituted by co-planar waveguide and three layers of substrate, wherein substrate, which integrates non-radiative Medium Wave Guide, is realized by designing a series of air holes on a printed circuit, co-planar waveguide is integrated in the middle layer of circuit, co-planar waveguide is accessed into substrate by triangle grading structure and integrates non-radiative Medium Wave Guide, while adjusting triangle grading structure to realize impedance matching；A rectangular channel has been opened on the underlying dielectric plate with co-planar waveguide the same end, and the interference to co-planar waveguide performance is avoided while stabilizing circuit.The present invention can be realized smoothly integrates non-radiative Medium Wave Guide by co-planar waveguide access substrate, the high-order mode that radiance is more excellent is encouraged, so as to form periodical leaky-wave antenna, the integrated of microwave and millimeter wave blended multi-layer circuit is realized simultaneously, be conducive to the design of millimeter wave frequency band circuit, manufacture craft is simple, of low cost.
Description
Technical field
The present invention relates to a kind of substrates to integrate non-radiative Medium Wave Guide leaky-wave antenna, more particularly to a kind of co-planar waveguide excitation
Substrate integrate non-radiative Medium Wave Guide periodicity leaky-wave antenna, belong to microwave technical field.
Background technology
With the research and development of millimeter wave frequency band circuit, lower transmission loss, easily with planar circuit structure assembly
Waveguiding structure receives favor, the distinctive low metal loss characteristic in high band of non-radiative Medium Wave Guide and in bending and
The radiationless characteristic discontinuously located becomes the millimeter wave component of great development prospect.
There are precisions and stable structure sex chromosome mosaicism when being applied to millimetre-wave circuit design for non-radiative Medium Wave Guide, simultaneously
With the raising of frequency, the size of non-radiative Medium Wave Guide can reduce, that is, influence non-radiative Medium Wave Guide and conventional planar circuit
Hybrid integrated, it is that substrate integrated technology is applied to the non-radiative Medium Wave Guide of tradition and reality that substrate, which integrates non-radiative Medium Wave Guide,
The non-radiative Medium Wave Guide structure of existing planarization, it overcomes the defect in non-radiative Medium Wave Guide structure, and it is non-to realize tradition
The planarization of radiation medium waveguide is further directly realized by non-radiative medium on the dielectric-slab of printed circuit board or metal coating
Waveguiding structure is suggested, and suitable lead to the hole site and hole size is selected to reduce cut-out surface current as far as possible to reduce radiation
Loss, on this architecture basics, design transition circuit realizes that microwave and millimeter wave blended multi-layer circuit, design loose type array are empty
Vent hole property performance period leaky-wave antenna.
Invention content
Technical problem to be solved by the invention is to provide a kind of substrates to integrate non-radiative Medium Wave Guide leaky-wave antenna, is one
The substrate of kind co-planar waveguide excitation integrates non-radiative Medium Wave Guide periodicity leaky-wave antenna, is to be integrated into substrate collection with co-planar waveguide
At non-radiative Medium Wave Guide, one three layers of microwave and millimeter wave circuit structure is formd, passes through non-radiative Medium Wave Guide through-hole
Leaky-wave antenna is realized in design.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of substrate of present invention offer integrates non-radiative Medium Wave Guide leaky-wave antenna, including top layer dielectric-slab, middle layer are situated between
Scutum, underlying dielectric plate, top layer metallic layer, bottom metal layer, top layer dielectric-slab, interlayer plate and underlying dielectric plate are coaxial
It stacks and places；The length of top layer dielectric-slab is less than interlayer plate and underlying dielectric plate, width is equal to interlayer plate and
Underlying dielectric plate.
Top layer metallic layer is arranged in the upper surface of top layer dielectric-slab, and the following table in underlying dielectric plate is arranged in bottom metal layer
Face, projection of the bottom metal layer with top layer metallic layer in the lower surface of underlying dielectric plate overlap.
The underlapped region of interlayer plate and top layer dielectric-slab, the upper surface of interlayer plate, from intermediate medium
One short side of plate starts that a co-planar waveguide inwardly is arranged, wherein length of the center conduction band of co-planar waveguide along intermediate medium plate
Edge direction broken line is extended, close to interlayer plate short side direction broken line in the metal ground plate of co-planar waveguide both sides
The edge of projection of the edge with top layer metallic layer on interlayer plate overlap.
In the overlapping region of top layer dielectric-slab, interlayer plate, underlying dielectric plate, along long side direction broken line reserved one
Media strip is symmetrical arranged array type air through-hole in the both sides of media strip, non-radiative medium is integrated to constitute substrate
Waveguide；Wherein, between being smaller than between the air hole far from co-planar waveguide between the air hole of co-planar waveguide
Away from.
The upper surface of interlayer plate integrates one end of non-radiative Medium Wave Guide in co-planar waveguide close to substrate, from altogether
Inwardly the first triangle grading structure, the gold from co-planar waveguide both sides is arranged along media strip in the one end for the center conduction band that surface wave is led
Belong to earth plate and second, third triangle grading structure inwardly is respectively set along media strip close to the side of center conduction band, it will
Co-planar waveguide access substrate integrates non-radiative Medium Wave Guide；Wherein, the first triangle grading structure is about long side direction broken line
Symmetrically, second, third triangle grading structure is symmetrical about long side direction broken line.
Underlying dielectric plate lower surface, since bottom metal layer is close to the short side of co-planar waveguide, inwardly along media strip
Two dovetail grooves are opened, to match with first on interlayer plate to third triangle grading structure；Wherein, two it is trapezoidal
Slot is symmetrical about long side direction broken line.
As a further optimization solution of the present invention, the spacing root between the size and air hole of array type air through-hole
It is determined according to the working frequency of circuit.
As a further optimization solution of the present invention, the spacing root between the size and air hole of array type air through-hole
It is determined according to the working frequency of circuit.
As a further optimization solution of the present invention, first to third triangle grading structure be located at substrate integrate it is non-radiative
In the reserved media strip region of Medium Wave Guide.
As a further optimization solution of the present invention, square is inwardly opened since underlying dielectric plate is close to the short side of co-planar waveguide
Shape slot, with stabilizing circuit；Wherein, rectangular channel is symmetrical about long side direction broken line.
As a further optimization solution of the present invention, along long side direction broken line, the length of above-mentioned rectangular channel surface wave together
The equal length led.
The present invention has the following technical effects using above technical scheme is compared with the prior art：This invention simplifies non-
The manufacture craft of radiation medium waveguide effectively inhibits substrate to integrate non-radiative Medium Wave Guide in intensive array type air through hole
Leakage losses, strengthen substrate integrate non-radiative waveguide loose type array type air through hole leakage losses；Multilayer electricity
The planarization of circuit of the integration realization on road, also reduces corresponding processing cost while simplifying manufacture craft；Meanwhile this
Invention uses three layers of circuit structure, makes full use of space, and co-planar waveguide is integrated from substrate in non-radiative Medium Wave Guide
Between access, preferable transiting performance may be implemented in triangle grading structure.Manufacture craft is flexibly simple simultaneously, may be implemented coplanar
Waveguide is linked into substrate and integrates three layers of circuit of non-radiative Medium Wave Guide, forms periodic leaky-wave antenna, is microwave and millimeter wave section
The design of hybrid integrated multilayer circuit other types antenna provides foundation.
Description of the drawings
Fig. 1 is the tomograph of the present invention.
Fig. 2 is the vertical view and side view of the present invention, wherein（a）It is vertical view,（b）It is side view.
Wherein, 1- metal ground plates；The centers 2- conduction band；Gap between the centers 3- conduction band and metal ground plate；4- triangles
Shape grading structure；5- dovetail grooves；6- periodicity space D 1；7- periodicity space D 2；8- rectangular channels；9- top layer dielectric-slabs；In 10-
Interbed dielectric-slab；11- underlying dielectric plates.
Fig. 3 is the vertical view of top layer dielectric-slab.
Fig. 4 is the vertical view of interlayer plate.
Fig. 5 is the upward view of interlayer plate.
Fig. 6 is the upward view of underlying dielectric plate.
Fig. 7 is the emulation S parameter figure of the embodiment of the present invention.
Fig. 8 is the emulation directional diagram of the embodiment of the present invention.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings：
A kind of substrate of present invention offer integrates non-radiative Medium Wave Guide leaky-wave antenna, is that one kind being linked into three by co-planar waveguide
Layer substrate integrates three layers of circuit structure property performance period leaky-wave antenna that non-radiative Medium Wave Guide is constituted, as shown in Figures 1 to 6,
In, co-planar waveguide and substrate integrate non-radiative Medium Wave Guide and are integrated on same dielectric-slab；Co-planar waveguide is integrated in entire circuit
Middle layer, co-planar waveguide access substrate is integrated into non-radiative Medium Wave Guide by three triangle grading structures and realizes impedance
Match；Underlying dielectric plate has opened a rectangular channel, and the influence to co-planar waveguide performance is avoided while stabilizing circuit；From bottom
Metal layer starts inwardly to open two dovetail grooves close to the short side of co-planar waveguide, with three triangle gradual changes at intermediate medium substrate
Structure matches, and preferably realizes that the impedance matching of transition position, two dovetail grooves are symmetrical about long side direction broken line.
Substrate integrates non-radiative Medium Wave Guide and realizes that production method is on three layers of dielectric-slab：By three layers of Jie
The metallic plate of scutum and its metal layer of upper and lower surface as the non-radiative Medium Wave Guide of tradition, the intermediate region of dielectric-slab reserves one
Media strip designs a series of array type air through-holes in media strip both sides, non-radiative medium is integrated to constitute substrate
Waveguide.Wherein, air hole quantity is determined by printed circuit board sizes；The diameter and spacing and circuit work frequency of air hole
Correlation influences the design of periodical leaky-wave antenna.
In the embodiment of the present invention, the interlayer substrate thickness where co-planar waveguide is0.635mm, relative dielectric constant
For6.15；The overall thickness of three layers of medium substrate is5.715mm（Underlying dielectric plate thickness is 2.54mm, interlayer plate be
0.635mm, top layer dielectric-slab be 2.54mm）, relative dielectric constant is6.15；The length of triangle grading structure is4.8mm, to
Outer width is 3.05mm, the Distribution of Magnetic Field in non-radiative Medium Wave Guide is integrated using the substrate of 3 D electromagnetic simulation software emulation
Figure（Working frequency 21GHz）, as shown in Figure 8.Fig. 8 shows that the substrate based on printed circuit board integrates non-radiative Medium Wave Guide can
It is applied to millimere-wave band circuit design, and can be in hybrid integrated to multilayer circuit；Further, the present invention proposes co-planar waveguide
To the transition circuit of substrate integration wave-guide, the planarization of circuit and the mixing collection of microwave and millimeter wave multilayer circuit can be effectively realized
At, corresponding simulation result as shown in fig. 7, it is 4GHz that return loss, which drops to -20dB frequency bandwidths below, the transition is illustrated
Circuit has preferable transmission.
The transition circuit that co-planar waveguide integrates non-radiative Medium Wave Guide to substrate makes full use of space, less electromagnetic interference,
The preferable triangle grading structure of utility is linked into substrate between realizing therefrom and integrates non-radiative Medium Wave Guide.Substrate integrates non-
Array type air through-hole in radiation medium waveguide, the through-hole close to the part of co-planar waveguide are smaller than far from co-planar waveguide
Part, closely spaced array type air through-hole can effectively inhibit electromagnetic wave to be propagated in substrate integrates non-radiative Medium Wave Guide
The design of leakage losses, the big array type air through-hole of spacing makes electromagnetic wave carry out periodical leaky wave radiation.Therefore, of the invention
Foundation is provided for the other kinds of Antenna Design of microwave and millimeter wave frequency range hybrid integrated multilayer circuit.
The above, the only specific implementation mode in the present invention, but scope of protection of the present invention is not limited thereto, appoints
What is familiar with the people of the technology within the technical scope disclosed by the invention, it will be appreciated that expects transforms or replaces, and should all cover
Within the scope of the present invention, therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (4)
1. substrate integrates non-radiative Medium Wave Guide leaky-wave antenna, which is characterized in that including top layer dielectric-slab, interlayer plate,
Underlying dielectric plate, top layer metallic layer, bottom metal layer, top layer dielectric-slab, interlayer plate and underlying dielectric plate coaxially stack
It places；The length of top layer dielectric-slab is less than interlayer plate and underlying dielectric plate, width are equal to interlayer plate and bottom
Dielectric-slab；
Top layer metallic layer is arranged in the upper surface of top layer dielectric-slab, and bottom metal layer is arranged at the lower surface of underlying dielectric plate, bottom
Projection of the layer metal layer with top layer metallic layer in the lower surface of underlying dielectric plate overlaps；
The underlapped region of interlayer plate and top layer dielectric-slab, the upper surface of interlayer plate, from intermediate dielectric-slab
One short side starts that a co-planar waveguide inwardly is arranged, wherein the center conduction band of co-planar waveguide is along the long side side of intermediate medium plate
It is extended to broken line, close to the side of interlayer plate short side direction broken line in the metal ground plate of co-planar waveguide both sides
It is overlapped along the edge of the projection with top layer metallic layer on interlayer plate；
In the overlapping region of top layer dielectric-slab, interlayer plate, underlying dielectric plate, along reserved Jie of long side direction broken line
Matter band is symmetrical arranged array type air through-hole in the both sides of media strip, non-radiative Medium Wave Guide is integrated to constitute substrate；
Wherein, the spacing being smaller than between the air hole far from co-planar waveguide between the air hole of co-planar waveguide；
The upper surface of interlayer plate integrates one end of non-radiative Medium Wave Guide in co-planar waveguide close to substrate, from coplanar wave
Inwardly the first triangle grading structure is arranged along media strip in the one end for the center conduction band led, and is connect from the metal of co-planar waveguide both sides
Second, third triangle grading structure inwardly is respectively set along media strip close to the side of center conduction band in floor, will be coplanar
Waveguide access substrate integrates non-radiative Medium Wave Guide；Wherein, the first triangle grading structure is symmetrical about long side direction broken line,
Second, third triangle grading structure is symmetrical about long side direction broken line；
Inwardly two are opened along media strip in underlying dielectric plate lower surface since bottom metal layer is close to the short side of co-planar waveguide
A dovetail groove, to match with first on interlayer plate to third triangle grading structure；Wherein, two dovetail grooves close
It is symmetrical in long side direction broken line;
Rectangular channel is inwardly opened since underlying dielectric plate is close to the short side of co-planar waveguide, with stabilizing circuit；Wherein, rectangular channel about
Long side direction broken line is symmetrical.
2. substrate according to claim 1 integrates non-radiative Medium Wave Guide leaky-wave antenna, which is characterized in that array type air
Spacing between the size and air hole of through-hole is determined according to the working frequency of circuit.
3. substrate according to claim 1 integrates non-radiative Medium Wave Guide leaky-wave antenna, which is characterized in that first to third
Triangle grading structure is located at substrate and integrates in the reserved media strip region of non-radiative Medium Wave Guide.
4. substrate according to claim 1 integrates non-radiative Medium Wave Guide leaky-wave antenna, which is characterized in that along long side direction
Broken line, the length of rectangular channel and the equal length of co-planar waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393692.XA CN106099379B (en) | 2016-06-03 | 2016-06-03 | Substrate integrates non-radiative Medium Wave Guide leaky-wave antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393692.XA CN106099379B (en) | 2016-06-03 | 2016-06-03 | Substrate integrates non-radiative Medium Wave Guide leaky-wave antenna |
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| Publication Number | Publication Date |
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| CN106099379A CN106099379A (en) | 2016-11-09 |
| CN106099379B true CN106099379B (en) | 2018-10-16 |
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| CN201610393692.XA Active CN106099379B (en) | 2016-06-03 | 2016-06-03 | Substrate integrates non-radiative Medium Wave Guide leaky-wave antenna |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953152B (en) * | 2017-04-13 | 2020-05-05 | 南京邮电大学 | Substrate integrated non-radiative dielectric waveguide stepped power divider |
| CN110718732B (en) * | 2019-10-28 | 2021-07-02 | 南京邮电大学 | Substrate integrated slow wave air waveguide for improving performance of microwave passive device |
| CN114300832A (en) * | 2021-12-20 | 2022-04-08 | 中国电子科技集团公司第十四研究所 | Positive and negative gradual change groove antenna based on integrated waveguide excitation of substrate |
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|---|---|---|---|---|
| CN103943927A (en) * | 2014-04-15 | 2014-07-23 | 南京邮电大学 | Circuit for switching from coplanar waveguides to substrate integrated nonradiative dielectric waveguides |
| CN104134835A (en) * | 2014-08-01 | 2014-11-05 | 南京邮电大学 | Novel filter based on substrate integration non-radiative dielectric waveguide |
| CN104868213A (en) * | 2015-04-20 | 2015-08-26 | 南京邮电大学 | Novel substrate integrated non-radiation dielectric waveguide feed structure |
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2016
- 2016-06-03 CN CN201610393692.XA patent/CN106099379B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943927A (en) * | 2014-04-15 | 2014-07-23 | 南京邮电大学 | Circuit for switching from coplanar waveguides to substrate integrated nonradiative dielectric waveguides |
| CN104134835A (en) * | 2014-08-01 | 2014-11-05 | 南京邮电大学 | Novel filter based on substrate integration non-radiative dielectric waveguide |
| CN104868213A (en) * | 2015-04-20 | 2015-08-26 | 南京邮电大学 | Novel substrate integrated non-radiation dielectric waveguide feed structure |
Non-Patent Citations (3)
| Title |
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| A Leaky-Wave Antenna in Substrate Integrated;Priyanka Mondal;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》;20130430;2294-2297 * |
| Substrate Integrated Nonradiative Dielectric;Feng Xu;《IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES》;20111231;3076-3086 * |
| Substrate Integrated Nonradiative;Yves Cassivi;《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》;20040331;89-91 * |
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