CN208849053U - A kind of novel substrate integration groove gap waveguide - Google Patents
A kind of novel substrate integration groove gap waveguide Download PDFInfo
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- CN208849053U CN208849053U CN201821726992.6U CN201821726992U CN208849053U CN 208849053 U CN208849053 U CN 208849053U CN 201821726992 U CN201821726992 U CN 201821726992U CN 208849053 U CN208849053 U CN 208849053U
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Abstract
The utility model relates to a kind of novel substrate integration groove gap waveguide, the waveguide by two layer by layer dielectric-slab be formed by connecting.The upper surface of top dielectric plate is printed with metal layer, and metal layer both ends connect transition transition line and feeding microstrip line, realizes waveguide and the mode conversion and impedance matching of microstrip circuitry；The upper surface two sides of layer dielectric plate are printed with metal circular patch, and centre is media slot；Lower surface is printed with ground metal layer, and the two sides of lower surface squeeze into multiple rows of periodical metallic vias respectively, are connected with the metal circular patch of upper surface, form Artificial magnetic conductor structure.Electromagnetic wave is transmitted in the waveguide above layer dielectric slot is with it in dielectric-slab, transmission mode is TE10 mould.The problems such as the utility model realizes media slot transmission electromagnetic wave, and the difficulty for solving metal groove waveguides is integrated, volume is big, and realize and the conversion of the mode of microstrip circuitry and impedance matching.
Description
Technical field
The utility model relates to electronic technology fields, and in particular to a kind of novel substrate integration groove gap waveguide (SIGGW)
Waveguide.
Background technique
Medium of the waveguide as transmission electromagnetic wave, the features such as loss because of its high power capacity, low transmission, in wireless communication system
It is widely applied in system.With the rapid development of microwave integrated circuit and the growing tension of frequency spectrum resource, miniaturization is integrated
To microwave circuit, more stringent requirements are proposed for change etc., and traditional rectangular waveguide is difficult to adapt to collect because of the disadvantages of volume is big, difficult integrated
At the development of circuit, and microstrip line, strip line etc. are also difficult to be competent at since the disadvantages of big is lost in it.
Gap waveguide (Gap Waveguide, GW) is a kind of novel waveguide structure, by two pieces of parallel metal conductor plates
It is made, upper layer metal plate has intermediate metal ridge/air groove and two as a perfect electric conductor (PEC) on lower metal plate
The artificial magnetic conductor (AMC) that side periodicity metal nail is formed is constituted, and is air gap layer between upper and lower level, electromagnetic wave can be along gold
Belong to ridge/air groove to be propagated.Gap waveguide is since closed metal conductor plate pass electromagnetic wave can only in inside up and down for it
It broadcasts, especially the air groove gap waveguide structure of vertical polarization, loss is only second to traditional rectangular waveguide.
Due to the structure of all-metal, gap waveguide is difficult to be integrated in circuit again, in order to improve this defect, studies people
Member starts to consider to realize gap waveguide using printed circuit board (PCB) technology, such as micro-strip ridge gap waveguide.Micro-strip ridge gap wave
It leads using PCB technology, metal ridge and AMC is realized by printed microstrip ridge on dielectric-slab and mushroom electromagnetic bandgap structure.And
Substrate integrates gap waveguide (SIGW) technology and on this basis, interstitial gap is improved to dielectric gap, improves the air gap
Unstable factor so that processing is also easier, and the cabling of micro-strip ridge also more flexible freedom.
A kind of novel substrate integration groove gap waveguide (SIGGW) of the utility model, for the air groove gap of all-metal
Waveguide carries out substrate and integrates, not only simple processing, but also its transmission characteristic can use the parameter in circuit and be controlled, and realizes
Waveguide work frequency it is tunable.The Quasi-TEM mode transmission of SIGW structure is compared, which transmits TE mode, more hold
Pattern analysis and mode conversion are easily carried out, and reduces the conduction loss of the micro-strip metal ridge of SIGW.
The content of the present invention has no open report identical with the utility model by literature search.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies of the prior art, design a kind of novel substrate integration groove gap wave
It leads.
A kind of novel substrate integration groove gap waveguide of the utility model includes: top dielectric plate (1), layer dielectric plate (2),
Wherein:
A, the upper surface printing of top dielectric plate (1) is by metal layer (3), the both ends of upper surface metal layer (3) respectively with print
The transition transition line metal layer (4,6) and feeding microstrip line metal layer (5,7) of brush connect, and microstrip line metal layer (5,7) is used as wave
Two input/output end ports led can be connected with other microstrip line devices or connector；
B, the two sides of the upper surface of layer dielectric plate (2) are printed with multiple rows of metal circular patch array (11,12) respectively, under
The middle position of the non-type metal circular patch in upper surface of layer dielectric-slab (2) is media slot (9)；Under layer dielectric plate (2)
Surface printing has ground metal layer (8), and multiple rows of periodical metallic vias (10), metallic vias (10) and metal are squeezed into two sides respectively
Circular patch array (11,12) concentric is connected, and forms mushroom electro-magnetic bandgap (EBG) array of structures；
C, top dielectric plate (1) and layer dielectric plate (2) can be fixed together by bonding or screw, top dielectric plate
(1) identical as layer dielectric plate (2) length and width.
A kind of novel substrate integration groove gap waveguide as described above, top dielectric plate (1) are substrate integration groove gap wave
The clearance layer led, thickness, which is less than, propagates the 1/4 of wavelength；The transition transition line metal layer (4,6) and feed of top dielectric plate (1)
Microstrip line metal layer (5,7) is the exchanging structure of waveguide and microstrip line.
A kind of novel substrate integration groove gap waveguide as described above, layer dielectric plate (2) are substrate integration groove gap wave
The via layer and medium groove layer led；Media slot (9) width on layer dielectric plate (2) is fixed, is the 1.3 of medium transmission wavelength
Times, electromagnetic wave is transmitted in media slot, and transmission mode is TE10 mould；The width for changing media slot (9), will affect waveguide
Transmission loss.
A kind of novel substrate integration groove gap waveguide as described above, the dielectric constant of layer dielectric plate (2) have to be larger than
The dielectric constant of top dielectric plate (1)；The dielectric constant for changing the two, can change the characteristic impedance of waveguide, when the dielectric of the two
When constant increases, the impedance of waveguide can reduce, and influence of the dielectric constant of layer dielectric plate (2) to impedance is greater than upper layer Jie
Scutum (1).
A kind of novel substrate integration groove gap waveguide as described above, the metallic vias (10) and gold of layer dielectric plate (2)
Belong to circular patch (11) and constitute electro-magnetic bandgap, forms AMC, the electromagnetism wave direction two sides in media slot can be inhibited to radiate；Change
The diameter of the diameter of metallic vias (10) and height and metal circular patch array (11,12), Ke Yigai on layer dielectric plate (2)
Become the transmission band of waveguide: the diameter of metal circular patch is smaller, and the centre frequency of transmission band is higher, and bin width is constant；
Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band broadens.Change the thickness of top dielectric plate (1)
Degree, thus it is possible to vary the thickness of the characteristic impedance of waveguide, top dielectric plate (1) is bigger, and the characteristic impedance of waveguide is bigger.
A kind of novel substrate integration groove gap waveguide as described above, the loss angle tangent of top dielectric plate (1) require compared with
Height, the dielectric-slab that loss angle tangent need to be selected as far as possible small, but it is of less demanding to the loss angle tangent of layer dielectric plate (2), it is optional
The dielectric-slab of cheap lossy is selected, to reduce cost.
The utility model compared with prior art, has the advantages that
1, the problems such as traditional rectangular waveguide, volume of gap waveguide is big, hardly possible is processed, difficult integrated is solved；
2, there is small size, low section is easy of integration, easy processing；
3, stable structure, transmission performance are good；
4, the mode for adjusting waveguide work frequency is simple, and adjustable parameter is more.
Detailed description of the invention
Fig. 1 is a kind of overall structure figure of novel substrate integration groove gap waveguide of the utility model.
Fig. 2 is a kind of upper surface figure of the top dielectric plate of novel substrate integration groove gap waveguide of the utility model.
Fig. 3 is a kind of lower surface figure of the top dielectric plate of novel substrate integration groove gap waveguide of the utility model.
Fig. 4 is a kind of upper surface figure of the layer dielectric plate of novel substrate integration groove gap waveguide of the utility model.
Fig. 5 is a kind of lower surface figure of the layer dielectric plate of novel substrate integration groove gap waveguide of the utility model.
Fig. 6 is a kind of analogous diagram of the S11 and S21 of novel substrate integration groove gap waveguide of the utility model.
Specific embodiment
The technical solution of the utility model is described in further detail With reference to embodiment.
As shown in figures 1 to 6, a kind of novel substrate integration groove gap waveguide of the utility model, comprising: top dielectric plate (1),
Layer dielectric plate (2), in which:
A, the upper surface printing of top dielectric plate (1) is by metal layer (3), the both ends of upper surface metal layer (3) respectively with print
The transition transition line metal layer (4,6) and feeding microstrip line metal layer (5,7) of brush connect, and microstrip line metal layer (5,7) is used as wave
Two input/output end ports led can be connected with other microstrip line devices or connector；
B, the two sides of the upper surface of layer dielectric plate (2) are printed with multiple rows of metal circular patch array (11,12) respectively,
The middle position of the non-type metal circular patch in the upper surface of layer dielectric plate (2) is media slot (9)；Layer dielectric plate (2)
Lower surface is printed with ground metal layer (8), and multiple rows of periodical metallic vias (10), metallic vias (10) and gold are squeezed into two sides respectively
Belong to circular patch array (11,12) concentric to be connected, forms mushroom electro-magnetic bandgap (EBG) array of structures；
C, top dielectric plate (1) and layer dielectric plate (2) can be fixed together by bonding or screw, top dielectric plate
(1) identical as layer dielectric plate (2) length and width.
A kind of novel substrate integration groove gap waveguide as described above, top dielectric plate (1) are substrate integration groove gap wave
The clearance layer led, thickness, which is less than, propagates the 1/4 of wavelength；The transition transition line metal layer (4,6) and feed of top dielectric plate (1)
Microstrip line metal layer (5,7) is the exchanging structure of waveguide and microstrip line.
A kind of novel substrate integration groove gap waveguide as described above, layer dielectric plate (2) are substrate integration groove gap wave
The via layer and medium groove layer led；Media slot (9) width on layer dielectric plate (2) is fixed, is the 1.3 of medium transmission wavelength
Times, electromagnetic wave is transmitted in media slot, and transmission mode is TE10 mould；The width for changing media slot (9), will affect waveguide
Transmission loss.
A kind of novel substrate integration groove gap waveguide as described above, the dielectric constant of layer dielectric plate (2) have to be larger than
The dielectric constant of top dielectric plate (1)；The dielectric constant for changing the two, can change the characteristic impedance of waveguide, when the dielectric of the two
When constant increases, the impedance of waveguide can reduce, and influence of the dielectric constant of layer dielectric plate (2) to impedance is greater than upper layer Jie
Scutum (1).
A kind of novel substrate integration groove gap waveguide as described above, the metallic vias (10) and gold of layer dielectric plate (2)
Belong to circular patch (11) and constitute electro-magnetic bandgap, forms AMC, the electromagnetism wave direction two sides in media slot can be inhibited to radiate；Change
The diameter of the diameter of metallic vias (10) and height and metal circular patch array (11,12), Ke Yigai on layer dielectric plate (2)
Become the transmission band of waveguide: the diameter of metal circular patch is smaller, and the centre frequency of transmission band is higher, and bin width is constant；
Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band broadens；Change the thickness of top dielectric plate (1)
Degree, thus it is possible to vary the thickness of the characteristic impedance of waveguide, top dielectric plate (1) is bigger, and the characteristic impedance of waveguide is bigger.
A kind of novel substrate integration groove gap waveguide as described above, the loss angle tangent of top dielectric plate (1) require compared with
Height, the dielectric-slab that loss angle tangent need to be selected as far as possible small, but it is of less demanding to the loss angle tangent of layer dielectric plate (2), it is optional
The dielectric-slab of cheap lossy is selected, to reduce cost.
A kind of novel substrate integration groove gap waveguide as described above, the overall dimensions of waveguide are 35.6mm*22.05mm*
1.067mm；Top dielectric plate (1) uses the dielectric material that dielectric constant is 0.0009 for 2.2, loss angle tangent, layer dielectric
Plate (2) is the dielectric material that dielectric constant is 3.48, loss angle tangent is 0.004.
S parameter simulation result shown in fig. 6 shows in 18GHz-35GHz frequency range, a kind of novel substrate collection of the utility model
Grooving gap waveguide has the transmission that S11 is largely lower than the impedance operator of -20dB and S12 is -0.52dB--1.5dB special
Property.
The better embodiment of the utility model is explained in detail above, but the utility model be not limited to it is above-mentioned
Embodiment can also not depart from the utility model ancestor within the knowledge of one of ordinary skill in the art
It is made a variety of changes under the premise of purport.
Claims (7)
1. a kind of novel substrate integration groove gap waveguide characterized by comprising top dielectric plate (1), layer dielectric plate (2),
Wherein:
A, the upper surface printing of top dielectric plate (1) is by metal layer (3), the both ends of upper surface metal layer (3) respectively with printing
Transition transition line metal layer (4,6) and feeding microstrip line metal layer (5,7) connection, microstrip line metal layer (5,7) is as waveguide
Two input/output end ports can be connected with other microstrip line devices or connector；
B, the two sides of the upper surface of layer dielectric plate (2) are printed with multiple rows of metal circular patch array (11,12) respectively, and lower layer is situated between
The middle position of the non-type metal circular patch in the upper surface of scutum (2) is media slot (9)；The lower surface of layer dielectric plate (2)
It is printed with ground metal layer (8), multiple rows of periodical metallic vias (10), metallic vias (10) and metal circular are squeezed into two sides respectively
Patch array (11,12) concentric is connected, and forms mushroom electro-magnetic bandgap (EBG) array of structures；
C, top dielectric plate (1) and layer dielectric plate (2) can be fixed together by bonding or screw, top dielectric plate (1) with
Layer dielectric plate (2) length and width is identical.
2. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: top dielectric plate (1)
For the clearance layer of substrate integration groove gap waveguide, thickness, which is less than, propagates the 1/4 of wavelength；The transition gradual change of top dielectric plate (1)
Line metal layer (4,6) and feeding microstrip line metal layer (5,7) are the exchanging structure of waveguide and microstrip line.
3. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: layer dielectric plate (2)
For the via layer and medium groove layer of substrate integration groove gap waveguide；Media slot (9) width on layer dielectric plate (2) be it is fixed,
It is 1.3 times of medium transmission wavelength, electromagnetic wave is transmitted in media slot, and transmission mode is TE10 mould；Change media slot (9)
Width, will affect the transmission loss of waveguide.
4. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: layer dielectric plate (2)
Dielectric constant have to be larger than the dielectric constant of top dielectric plate (1)；The dielectric constant for changing the two, can change the characteristic of waveguide
Impedance, when the dielectric constant of the two increases, the impedance of waveguide can reduce, and the dielectric constant of layer dielectric plate (2) is to impedance
Influence be greater than top dielectric plate (1).
5. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: layer dielectric plate (2)
Metallic vias (10) and metal circular patch (11) constitute electro-magnetic bandgap, form AMC, the electromagnetism in media slot can be inhibited
The radiation of wave direction two sides；Change the diameter of metallic vias (10) and height and metal circular patch array on layer dielectric plate (2)
The diameter of (11,12), thus it is possible to vary the transmission band of waveguide: the diameter of metal circular patch is smaller, the center frequency of transmission band
Rate is higher, and bin width is constant；Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band broadens；Change
Become the thickness of top dielectric plate (1), thus it is possible to vary the thickness of the characteristic impedance of waveguide, top dielectric plate (1) is bigger, the spy of waveguide
Property impedance is bigger.
6. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: top dielectric plate (1)
Loss angle tangent it is more demanding, the dielectric-slab that loss angle tangent need to be selected as far as possible small, but to the loss angle of layer dielectric plate (2)
Tangent is of less demanding, and the dielectric-slab of cheap lossy may be selected, to reduce cost.
7. a kind of novel substrate integration groove gap waveguide according to claim 1, it is characterised in that: the overall dimensions of waveguide
For 35.6mm*22.05mm*1.067mm；It for 2.2, loss angle tangent is 0.0009 that top dielectric plate (1), which uses dielectric constant,
Dielectric material, layer dielectric plate (2) are the dielectric materials that dielectric constant is 3.48, loss angle tangent is 0.004.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821726992.6U CN208849053U (en) | 2018-10-24 | 2018-10-24 | A kind of novel substrate integration groove gap waveguide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216845A (en) * | 2018-10-24 | 2019-01-15 | 云南大学 | A kind of substrate integration groove gap waveguide structure |
| CN110364799A (en) * | 2019-07-15 | 2019-10-22 | 云南大学 | Double ridge integral substrate gap waveguides |
| CN112259944A (en) * | 2020-10-30 | 2021-01-22 | 北京邮电大学 | Broadband transmission line and transmission system |
-
2018
- 2018-10-24 CN CN201821726992.6U patent/CN208849053U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216845A (en) * | 2018-10-24 | 2019-01-15 | 云南大学 | A kind of substrate integration groove gap waveguide structure |
| CN110364799A (en) * | 2019-07-15 | 2019-10-22 | 云南大学 | Double ridge integral substrate gap waveguides |
| CN112259944A (en) * | 2020-10-30 | 2021-01-22 | 北京邮电大学 | Broadband transmission line and transmission system |
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