CN208849054U - Curved novel substrate integration groove gap waveguide structure - Google Patents
Curved novel substrate integration groove gap waveguide structure Download PDFInfo
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- CN208849054U CN208849054U CN201821730075.5U CN201821730075U CN208849054U CN 208849054 U CN208849054 U CN 208849054U CN 201821730075 U CN201821730075 U CN 201821730075U CN 208849054 U CN208849054 U CN 208849054U
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Abstract
The utility model relates to curved novel substrate integration groove gap waveguide structure, the curved 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 are separately connected transition transition line and feeding microstrip line, realizes the impedance matching of microstrip circuitry；It prints by metal circular patch the upper surface two sides of layer dielectric plate, centre is 90 ° of curved media slots of circular arc, lower surface is printed with ground metal layer, the periodical metallic vias of multiple rows of bend alignment is squeezed into the two sides of lower surface respectively, it is connected with upper surface metal circular patch, forms electro-magnetic bandgap Artificial magnetic conductor structure.The curved waveguide transmission mode is TE10 mould.The problems such as the utility model realizes media slot transmission electromagnetic wave, reduces influence of the Waveguide Discontinuities to transmission characteristic, and the difficulty for solving metal groove waveguides is integrated, volume is big, and realize and the mode of microstrip circuitry is converted.
Description
Technical field
The utility model relates to electronic technology fields, and in particular to curved novel substrate integration groove gap waveguide structure.
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.
It is usually needed in the practical application of waveguide waveguide bend, to facilitate the layout of integrated circuit, but simultaneously can band
Carry out the influence of Waveguide Discontinuities.How curved waveguide structure is designed, so that the influence of discontinuity is preferably minimized, it is that design is curved
When bent waveguide the problem of overriding concern.
Curved novel substrate integration groove gap waveguide structure (the Bend Substrate Integrated of the utility model
Grove Gap Waveguid, B-SIGGW), 90 ° of circular arc curved waveguides are devised, between the air groove of all-metal
Gap waveguide carries out substrate and integrates, not only simple processing, but also its transmission characteristic can use the parameter in circuit and be controlled, real
Show the tunable of waveguide work frequency, greatly reduces influence of the discontinuity to waveguide transmission characteristic.Compare SIGW structure
Quasi-TEM mode transmission, which transmits TE mode, it is easier to carry out pattern analysis and mode conversion, and reduce
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 curved novel substrate integration groove gap
Waveguiding structure.
The curved novel substrate integration groove gap waveguide structure structure of the utility model includes: top dielectric plate (1), lower layer
Dielectric-slab (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 the metal circular patch array of multiple rows of bend alignment respectively
(11,12), the middle position of the non-type metal circular patch in the upper surface of layer dielectric plate (2) are that 90 ° of circular arcs are curved
Media slot (9)；The lower surface of layer dielectric plate (2) is printed with ground metal layer (8), and multiple rows of bend alignment is squeezed into two sides respectively
Periodical metallic vias (10), metallic vias (10) and metal circular patch (11,12) concentric are connected, and form bend alignment
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.
Curved novel substrate integration groove gap waveguide structure as described above, top dielectric plate (1) are substrate integration groove
The clearance layer of gap waveguide, thickness, which is less than, propagates the 1/4 of wavelength；The transition transition line metal layer (4,6) of top dielectric plate (1)
It is the exchanging structure of waveguide and microstrip line with feeding microstrip line metal layer (5,7).
Curved novel substrate integration groove gap waveguide structure as described above, layer dielectric plate (2) are substrate integration groove
The via layer and medium groove layer of gap waveguide；Media slot (9) width on layer dielectric plate (2) is fixed, is medium transmission wave
Long 1.3 times, electromagnetic wave is transmitted in media slot, and transmission mode is TE10 mould；Change the width of media slot (9), it can shadow
Ring the transmission loss of waveguide.
Curved novel substrate integration groove gap waveguide structure as described above, the dielectric constant of layer dielectric plate (2) must
The dielectric constant of top dielectric plate (1) must be greater than；The dielectric constant for changing the two, can change the characteristic impedance of waveguide, work as the two
Dielectric constant increase when, the impedance of waveguide can reduce, and influence of the dielectric constant of layer dielectric plate (2) to impedance is greater than
Top dielectric plate (1).
Curved novel substrate integration groove gap waveguide structure as described above, the metallic vias of layer dielectric plate (2)
(10) and metal circular patch (11) constitutes electro-magnetic bandgap, forms AMC, can inhibit the electromagnetism wave direction two sides spoke in media slot
It penetrates；Change layer dielectric plate (2) on metallic vias (10) diameter and height and metal circular patch array (11,12) it is straight
Diameter, thus it is possible to vary the transmission band of waveguide: the diameter of metal circular patch is smaller, and the centre frequency of transmission band is higher, frequency range
Width is constant；Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band broadens；Change top dielectric
The thickness of plate (1), 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 got over
Greatly.
Curved novel substrate integration groove gap waveguide structure as described above, media slot (9) are orthogonal by two sections
Media slot and intermediate one section 90 ° of arc groove composition, the radius where circular arc is smaller, and the bending part of media slot is shorter, does not connect
Continuous influence of the property to waveguide is bigger, and transmission loss is bigger, and higher hamonic wave is more；It is right-angle bending wave if arc radius is 0
It leads；It is straight wave guide if arc radius is infinite.
Curved novel substrate integration groove gap waveguide structure as described above, the loss angle tangent of top dielectric plate (1)
Dielectric-slab that is more demanding, loss angle tangent need to being selected as far as possible small, but the loss angle tangent of layer dielectric plate (2) is required not
The dielectric-slab of cheap lossy may be selected in height, 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 low section, easy of integration, easy processing；
3, it is advantageously integrated wiring, and Waveguide Discontinuities influence is smaller；
4, the mode for adjusting waveguide work frequency is simple, and adjustable parameter is more.
Detailed description of the invention
Fig. 1 is the overall structure figure of the curved novel substrate integration groove gap waveguide structure of the utility model.
Fig. 2 is the upper surface of the top dielectric plate of the curved novel substrate integration groove gap waveguide structure of the utility model
Figure.
Fig. 3 is the lower surface of the top dielectric plate of the curved novel substrate integration groove gap waveguide structure of the utility model
Figure.
Fig. 4 is the upper surface of the layer dielectric plate of the curved novel substrate integration groove gap waveguide structure of the utility model
Figure.
Fig. 5 is the lower surface of the layer dielectric plate of the curved novel substrate integration groove gap waveguide structure of the utility model
Figure.
Fig. 6 is the analogous diagram of the S11 and S21 of the curved novel substrate integration groove gap waveguide structure 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, the curved novel substrate integration groove gap waveguide structure 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 the metal circular patch array of multiple rows of bend alignment respectively
(11,12), the middle position of the non-type metal circular patch in the upper surface of layer dielectric plate (2) are that 90 ° of circular arcs are curved
Media slot (9)；The lower surface of layer dielectric plate (2) is printed with ground metal layer (8), and multiple rows of bend alignment is squeezed into two sides respectively
Periodical metallic vias (10), metallic vias (10) and metal circular patch (11,12) concentric are connected, and form mushroom electromagnetism
Band gap (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.
Curved novel substrate integration groove gap waveguide structure as described above, top dielectric plate (1) are substrate integration groove
The clearance layer of gap waveguide, thickness, which is less than, propagates the 1/4 of wavelength；The transition transition line metal layer (4,6) of top dielectric plate (1)
It is the exchanging structure of waveguide and microstrip line with feeding microstrip line metal layer (5,7).
Curved novel substrate integration groove gap waveguide structure as described above, layer dielectric plate (2) are substrate integration groove
The via layer and medium groove layer of gap waveguide；Media slot (9) width on layer dielectric plate (2) is fixed, is medium transmission wave
Long 1.3 times, electromagnetic wave is transmitted in media slot, and transmission mode is TE10 mould；Change the width of media slot (9), it can shadow
Ring the transmission loss of waveguide.
Curved novel substrate integration groove gap waveguide structure as described above, the dielectric constant of layer dielectric plate (2) must
The dielectric constant of top dielectric plate (1) must be greater than；The dielectric constant for changing the two, can change the characteristic impedance of waveguide, work as the two
Dielectric constant increase when, the impedance of waveguide can reduce, and influence of the dielectric constant of layer dielectric plate (2) to impedance is greater than
Top dielectric plate (1).
Curved novel substrate integration groove gap waveguide structure as described above, the metallic vias of layer dielectric plate (2)
(10) and metal circular patch (11) constitutes electro-magnetic bandgap, forms AMC, can inhibit the electromagnetism wave direction two sides spoke in media slot
It penetrates；Change layer dielectric plate (2) on metallic vias (10) diameter and height and metal circular patch array (11,12) it is straight
Diameter, thus it is possible to vary the transmission band of waveguide: the diameter of metal circular patch is smaller, and the centre frequency of transmission band is higher, frequency range
Width is constant；Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band broadens；Change top dielectric
The thickness of plate (1), 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 got over
Greatly.
Curved novel substrate integration groove gap waveguide structure as described above, media slot (9) is by two sections of vertical media
Slot and intermediate one section 90 ° of arc groove composition, the radius where circular arc is smaller, and the bending part of media slot is shorter, discontinuity
Influence to waveguide is bigger, and transmission loss is bigger, and higher hamonic wave is more；It is right-angle bending waveguide if arc radius is 0；Such as
Fruit arc radius is infinite, is straight wave guide.
Curved novel substrate integration groove gap waveguide structure as described above, the loss angle tangent of top dielectric plate (1)
Dielectric-slab that is more demanding, loss angle tangent need to being selected as far as possible small, but the loss angle tangent of layer dielectric plate (2) is required not
The dielectric-slab of cheap lossy may be selected in height, to reduce cost.
Curved novel substrate integration groove gap waveguide structure as described above, waveguide appearance are positive L-shaped structure, whole ruler
Very little is 50.42mm*50.42mm*1.067mm；Top dielectric plate (1) uses dielectric constant for 2.2, loss angle tangent 0.0009
Dielectric material, 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 20GHz-34GHz frequency range, the curved novel substrate of the utility model
Integration groove gap waveguide structure has the transmission that S11 is largely lower than the impedance operator of -20dB and S12 is -1dB--2.2dB
Characteristic.
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 (8)
1. curved novel substrate integration groove gap waveguide structure characterized by 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 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) be printed with respectively multiple rows of bend alignment metal circular patch array (11,
12), the middle position of the non-type metal circular patch in the upper surface of layer dielectric plate (2) is 90 ° of curved media of circular arc
Slot (9)；The lower surface of layer dielectric plate (2) is printed with ground metal layer (8), and the period of multiple rows of bend alignment is squeezed into two sides respectively
Property metallic vias (10), metallic vias (10) and metal circular patch (11,12) concentric be 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. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: top dielectric
Plate (1) is the clearance layer of substrate integration groove gap waveguide, and thickness, which is less than, propagates the 1/4 of wavelength；The transition of top dielectric plate (1)
Transition line metal layer (4,6) and feeding microstrip line metal layer (5,7) are the exchanging structure of waveguide and microstrip line.
3. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: layer dielectric
Plate (2) is the via layer and medium groove layer of substrate integration groove gap waveguide；Media slot (9) width on layer dielectric plate (2) is
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 medium
The width of slot (9), will affect the transmission loss of waveguide.
4. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: layer dielectric
The dielectric constant of plate (2) has to be larger than the dielectric constant of top dielectric plate (1)；The dielectric constant for changing the two, can change waveguide
Characteristic impedance, when the two dielectric constant increase when, the impedance of waveguide can reduce, and the dielectric constant of layer dielectric plate (2)
Influence to impedance is greater than top dielectric plate (1).
5. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: layer dielectric
The metallic vias (10) and metal circular patch (11) of plate (2) constitute electro-magnetic bandgap, form AMC, can inhibit in media slot
Electromagnetism wave direction two sides radiation；Change the diameter of metallic vias (10) and height and metal circular patch on layer dielectric plate (2)
The diameter of array (11,12), thus it is possible to vary the transmission band of waveguide: the diameter of metal circular patch is smaller, in transmission band
Frequency of heart is higher, and bin width is constant；Metallic vias diameter is bigger, and the centre frequency of transmission band is higher, and transmission band becomes
It is wide；Change 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, wave
The characteristic impedance led is bigger.
6. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: media slot
(9) it is made of two sections of orthogonal media slots and intermediate one section 90 ° of arc groove, the radius where circular arc is smaller, media slot
Bending part it is shorter, influence of the discontinuity to waveguide is bigger, and transmission loss is bigger, and higher hamonic wave is more；If circular arc half
Diameter is 0, is right-angle bending waveguide；It is straight wave guide if arc radius is infinite.
7. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: top dielectric
The loss angle tangent of plate (1) is more demanding, the dielectric-slab that loss angle tangent need to be selected as far as possible small, but to layer dielectric plate (2)
Loss angle tangent is of less demanding, and the dielectric-slab of cheap lossy may be selected, to reduce cost.
8. curved novel substrate integration groove gap waveguide structure according to claim 1, it is characterised in that: waveguide appearance
Be positive L-shaped structure, overall dimensions 50.42mm*50.42mm*1.067mm；Top dielectric plate (1) uses dielectric constant for 2.2,
Loss angle tangent be 0.0009 dielectric material, layer dielectric plate (2) be dielectric constant be 3.48, loss angle tangent 0.004
Dielectric material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066034A (en) * | 2018-10-24 | 2018-12-21 | 云南大学 | A kind of curved substrate integration groove gap waveguide structure of circular arc |
| CN113740962A (en) * | 2021-09-07 | 2021-12-03 | 中山大学 | Structure for inhibiting Fresnel reflection in waveguide structure |
| CN113904080A (en) * | 2021-09-30 | 2022-01-07 | 锐石创芯（深圳）科技有限公司 | Signal transmission line structure |
-
2018
- 2018-10-24 CN CN201821730075.5U patent/CN208849054U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066034A (en) * | 2018-10-24 | 2018-12-21 | 云南大学 | A kind of curved substrate integration groove gap waveguide structure of circular arc |
| CN113740962A (en) * | 2021-09-07 | 2021-12-03 | 中山大学 | Structure for inhibiting Fresnel reflection in waveguide structure |
| CN113904080A (en) * | 2021-09-30 | 2022-01-07 | 锐石创芯（深圳）科技有限公司 | Signal transmission line structure |
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