CN109935965A - Integral substrate gap waveguide ultra-wideband antenna - Google Patents
Integral substrate gap waveguide ultra-wideband antenna Download PDFInfo
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- CN109935965A CN109935965A CN201910283181.6A CN201910283181A CN109935965A CN 109935965 A CN109935965 A CN 109935965A CN 201910283181 A CN201910283181 A CN 201910283181A CN 109935965 A CN109935965 A CN 109935965A
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- 239000000758 substrate Substances 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 238000003854 Surface Print Methods 0.000 claims abstract description 4
- 230000000737 periodic effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses integral substrate gap waveguide ultra-wideband antennas comprising top dielectric plate, layer dielectric plate and the blank medium plate being arranged between top dielectric plate and layer dielectric plate；The upper surface of top dielectric plate is printed with the first copper-clad, and window shape gap is etched on the first copper-clad, and the lower surface of top dielectric plate is printed with feeding microstrip line, and feeding microstrip line extends at least partially into the lower section in window shape gap；The circular metal patch of the upper surface print cycle property arrangement of layer dielectric plate, the lower surface of layer dielectric plate are printed with the second copper-clad, and each circular metal patch is equipped with the metallic vias through layer dielectric plate, and metallic vias is connect with the second copper-clad.The present invention can overcome the disadvantages of existing dual-polarized antenna structure is complicated, electromagnetic shielding performance is not strong.
Description
Technical field
The present invention relates to antenna technical fields, more particularly to integral substrate gap waveguide ultra-wideband antenna.
Background technique
The one kind of microstrip antenna as resonant aerial, maximum disadvantage is exactly that impedance bandwidth is narrow, this is communicated with 5G
It is required that disagreing, so improving impedance bandwidth is trend of the times, ultra-wideband antenna already becomes research hotspot.Research is extremely
The present, the method for broadening bandwidth at present have very much, is substantially and is completed using simulation software and numerical computation method.It is more commonly used
The method of broadening bandwidth have: monopole antenna changes patch shape, floor fluting, loaded impedance matching network, Fractal Design
Deng.These antenna is all planarized structure, compared to the bandwidth that original solid type structure not only has ultra-wide, also reduces day
The volume of line realizes the miniaturization of antenna, low section.But in millimeter wave frequency band, common micro-strip can not because loss is excessive
The technical standard for reaching ultra wide band, in Waveguide-microbelt antenna, based on SIW (Substrate integrated waveguide,
Substrate integration wave-guide) antenna it is still bigger than normal in the loss of millimeter wave, and GW (Gap Waveguide, gap waveguide) and PRGW
All there is the problems such as processing cost is excessively high.
In recent years, integral substrate gap waveguide (ISGW) transmission line is suggested, which is realized based on multi-layer PCB,
It is divided into two kinds of structures of the integral substrate gap waveguide with ridge and micro-strip integral substrate gap waveguide.Integral substrate gap wave with ridge
It leads and is generally made of two layers of PCB, upper layer PCB outer surface applies copper entirely and constitutes perfect electric conductor (PEC), is printed on lower layer PCB
Microstrip line with lower-lying metal is connected to form a kind of structure of similar ridge, micro-strip on microstrip line with a series of metallization VIAs
Line two sides are periodic mushroom configurations to form perfect magnetic conductor (PMC).Due to forming mushroom-shaped EBG between PEC and PMC
(Electromagnetic Band Gap, electromagnetic field band gap) structure, electromagnetic wave (quasi- TEM wave) can only be propagated along microstrip line,
But since micro-strip ridge in the integral substrate gap waveguide with ridge and mushroom-shaped EBG structure are on same layer pcb board, so
Its micro-strip ridge will receive the restriction of mushroom-shaped EBG structure and inconvenient cabling, there is limitation in practical applications.
Micro-strip integral substrate gap waveguide is made of three layers of pcb board.Copper is covered entirely and forms PEC, inside in the outside of upper layer pcb board
Then printed microstrip line all prints the mushroom-shaped EBG structure of periodic arrangement on bottom pcb board to constitute PMC, on upper layer and bottom
Intercalation reaction one block of blank medium plate separates upper layer pcb board and bottom pcb board.Due to having the partition of blank dielectric-slab, micro-strip
Line flexible layout, it is not necessary to worry to be restricted by periodic structure.When the work of this integral substrate gap waveguide, quasi- TEM wave can edge
Microstrip line propagated in the medium substrate between microstrip line and PEC, the microstrip line that this operating mode and medium bury is very
It is similar.But similarly, the mushroom-shaped EBG structure between PEC and PMC can prevent the propagation of wave in the other direction, it is difficult to protect
Demonstrate,prove the propagation of the quasi- TEM wave along microstrip line.
Therefore, there is the disadvantages of structure is complicated, electromagnetic shielding performance is not strong in the ultra-wideband antenna of above two structure.
Summary of the invention
The invention mainly solves the technical problem of providing integral substrate gap waveguide ultra-wideband antennas, can overcome existing
Ultra-wideband antenna the disadvantages of structure is complicated, electromagnetic shielding performance is not strong.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: it is super to provide integral substrate gap waveguide
Broad-band antenna, including top dielectric plate (1), layer dielectric plate (3) and setting are in the top dielectric plate (1) and layer dielectric
Blank medium plate (2) between plate (3)；The upper surface of the top dielectric plate (1) is printed with the first copper-clad (11), and described
It is etched on one copper-clad (11) window shape gap (12), the lower surface of the top dielectric plate (1) is printed with feeding microstrip line
(13), the feeding microstrip line (13) extends at least partially into the lower section of window shape gap (12)；The layer dielectric plate (3) it is upper
The lower surface of the circular metal patch (31) of surface printing periodic arrangement, the layer dielectric plate (3) is printed with the second deposited copper
Layer (32), each circular metal patch (31) are equipped with the metallic vias (33) through layer dielectric plate (3), the metal
Via hole (33) is connect with the second copper-clad (32).
Preferably, the feeding microstrip line (13) includes sequentially connected 50Ohm microstrip line (131), quarter-wave
Impedance transducer (132) and square metal patch (133), the square metal patch (133) extend to window shape gap (12)
Lower section.
Preferably, the quarter-wave impedance transducer (132) is stepped on the width.
Preferably, the top dielectric plate (1), layer dielectric plate (3) and blank medium plate (2) are bonded together.
Preferably, the window shape gap (12) is arch.
Preferably, the window shape gap (12) is rectangle.
Preferably, the ratio between the bottom edge of the window shape gap (12) and height or the ratio between long and width are 1:1.
Preferably, the top dielectric plate (1), blank medium plate (2) and layer dielectric plate (3) are all made of
Rogers5880 plate, thickness are respectively 0.508mm, 0.254mm and 0.787mm.
It is in contrast to the prior art, the beneficial effects of the present invention are: constituting integrated base by using three blocks of dielectric-slabs
Piece gap waveguide (ISGW) antenna is etched with window shape gap on the copper-clad of top dielectric plate, using being located at top dielectric plate
Lower surface simultaneously extends to the generation polarized radiation of the excitation of the feeding microstrip line below window shape gap window shape gap, existing so as to overcome
The disadvantages of structure is complicated for some ultra-wideband antennas, electromagnetic shielding performance is not strong, with structure is simple, isolation performance is excellent, electromagnetism
Shielding properties is strong, easy processing, easily with the advantages that other planar circuits are integrated, ultra wide band, 5G can be used as and other millimeter waves are logical
Believe system antenna.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the integral substrate gap waveguide ultra-wideband antenna of the embodiment of the present invention.
Fig. 2 is the schematic top plan view of the top dielectric plate of integral substrate gap waveguide ultra-wideband antenna shown in FIG. 1.
Fig. 3 is the elevational schematic view of the top dielectric plate of integral substrate gap waveguide ultra-wideband antenna shown in FIG. 1.
Fig. 4 is the schematic top plan view of the layer dielectric plate of integral substrate gap waveguide ultra-wideband antenna shown in FIG. 1.
Fig. 5 is the elevational schematic view of the layer dielectric plate of integral substrate gap waveguide ultra-wideband antenna shown in FIG. 1.
Fig. 6 is the return loss, group delay and the emulation of gain of integral substrate gap waveguide ultra-wideband antenna shown in FIG. 1
Result schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Refering to fig. 1 to Fig. 5, the integral substrate gap waveguide ultra-wideband antenna of the embodiment of the present invention include top dielectric plate 1,
Layer dielectric plate 3 and the blank medium plate 2 being arranged between top dielectric plate 1 and layer dielectric plate 3.
The upper surface of top dielectric plate 1 is printed with the first copper-clad 11, is etched with window shape gap 12 on the first copper-clad 11,
The lower surface of top dielectric plate 1 is printed with feeding microstrip line 13, and feeding microstrip line 13 extends at least partially into window shape gap 12
Lower section.
The circular metal patch 31 of the upper surface print cycle property arrangement of layer dielectric plate 3, the lower surface of layer dielectric plate 3
It is printed with the second copper-clad 32, each circular metal patch 31 is equipped with the metallic vias 33 through layer dielectric plate 3, metal mistake
Hole 33 is connect with the second copper-clad 32.Each circular metal patch 31 together constitutes mushroom-shaped with metallic vias 33 thereon
EBG structure, in this way, being formed the mushroom-shaped EBG structure of periodic arrangement on layer dielectric plate 3.
In the present embodiment, feeding microstrip line 13 includes sequentially connected 50Ohm microstrip line 131, quarter-wave resistance
Anti-rotation parallel operation 132 and square metal patch 133, square metal patch 133 extend to the lower section in window shape gap 12, quarter-wave
Long impedance transducer 132 extends at least partially into the lower section in window shape gap 12.It is arranged in this way, it can be by 50Ohm microstrip line
131 characteristic impedance and the load impedance of square metal patch 133 match.In specific setting, quarter-wave impedance
Converter 132 can be stepped on the width, that is to say, that the width of quarter-wave impedance transducer 132 is in ladder
Mutation.Likewise, the width of 50Ohm microstrip line 131 and quarter-wave impedance transducer 132 can also be mutated in ladder.
Top dielectric plate 1, blank medium plate 2, layer dielectric plate 3, the first copper-clad 11, feeding microstrip line 13, periodicity
The mushroom-shaped EBG structure of arrangement and the second copper-clad 32 constitute integral substrate gap waveguide structure.1 lower surface of top dielectric plate
Feeding microstrip line 13 window shape gap 12 can be motivated to generate radiation, feeding microstrip line 13 is arrived by impedance transformation and is born with bigger
The square metal patch 133 of impedance is carried, is wide seam when 12 length and width ratio of window shape gap is comparable quasi- to generate more radiation,
The length and width for taking gap are resonance electrical length (about 3/2nds wavelength), adjust the size of square metal patch 133 and rectangular
Metal patch 133 edge to gap apart from when, return loss changes greatly.Width seam antenna can be realized broader bandwidth, from
And realize ultra wideband, relative impedances bandwidth has been more than 40%, and group delay is within 0.5nm.
In the present embodiment, the shape in window shape gap 12 is arch or rectangle, if window shape gap 12 is arch, window shape
Vertex is not present in the arc side in gap 12, can improve the situation of the surface current local distribution unevenness in aerial radiation gap, if
Window shape gap 12 is rectangle, then electric current can be made to mutate or reflect in apex, this meeting is so that its resistance and reactance
It fluctuates, to influence antenna performance.
In practical applications, in order to obtain required working band, need suitably to choose the mushroom-shaped of periodic arrangement
In the period of the size and mushroom EBG structure of circular metal patch 31 and metallic vias 33, make mushroom-shaped EBG in EBG structure
The electromagnetic wave frequency band that the stopband and integral substrate gap waveguide of structure are propagated is adapted.For example, in a kind of concrete application,
EBG structure is not paved with layer dielectric plate 3, but in the range of the upper surface face window shape gap 12 of layer dielectric plate 3, only
It including 4 circular metal patch 31, that is, only include 4 mushroom-shaped EBG structures.
The effect of blank medium plate 2 is to make to form gap between top dielectric plate 1 and layer dielectric plate 3, top dielectric plate
1, layer dielectric plate 3 and blank medium plate 2 can be bonded together.
In order to which the broadband dual polarized antenna of the present embodiment is described in detail, a specific example is given below.In the specific reality
In example, the ratio between the bottom edge in the window shape gap 12 on top dielectric plate 1 and height or the ratio between long and width are 1:1, layer dielectric plate 3
Mushroom-shaped EBG structure is 6 × 7 arrays, in order to reduce coupling, eliminates two mushroom-shaped EBG structures below square patch 133.
Top dielectric plate 1, blank medium plate 2 and layer dielectric plate 3 are all made of Rogers5880 plate, thickness be respectively 0.508mm,
0.254mm and 0.787mm.Obtain test result by emulating and testing, as shown in fig. 6, test result show the antenna-
10dB impedance bandwidth is 27-40GHz (relative impedances bandwidth is 38.8%), and gain is about 10dBi at 32GHz, and isolation reaches
To 20dB or more.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. integral substrate gap waveguide ultra-wideband antenna, which is characterized in that including top dielectric plate (1), layer dielectric plate (3) with
And the blank medium plate (2) being arranged between the top dielectric plate (1) and layer dielectric plate (3)；The top dielectric plate (1)
Upper surface be printed with the first copper-clad (11), be etched with window shape gap (12), the upper layer on first copper-clad (11)
The lower surface of dielectric-slab (1) is printed with feeding microstrip line (13), and the feeding microstrip line (13) extends at least partially into window shape seam
The lower section of gap (12)；The circular metal patch (31) of the upper surface print cycle property arrangement of the layer dielectric plate (3), under described
The lower surface of layer dielectric-slab (3) is printed with the second copper-clad (32), and each circular metal patch (31) is equipped under running through
The metallic vias (33) of layer dielectric-slab (3), the metallic vias (33) connect with the second copper-clad (32).
2. integral substrate gap waveguide ultra-wideband antenna according to claim 1, which is characterized in that the feeding microstrip line
It (13) include sequentially connected 50Ohm microstrip line (131), quarter-wave impedance transducer (132) and square metal patch
(133), the square metal patch (133) extends to the lower section of window shape gap (12).
3. integral substrate gap waveguide ultra-wideband antenna according to claim 2, which is characterized in that the quarter-wave
Long impedance transducer (132) is stepped on the width.
4. integral substrate gap waveguide ultra-wideband antenna according to claim 1, which is characterized in that the top dielectric plate
(1), layer dielectric plate (3) and blank medium plate (2) are bonded together.
5. integral substrate gap waveguide ultra-wideband antenna according to claim 3, which is characterized in that the window shape gap
It (12) is arch.
6. integral substrate gap waveguide ultra-wideband antenna according to claim 3, which is characterized in that the window shape gap
It (12) is rectangle.
7. integral substrate gap waveguide ultra-wideband antenna according to claim 5 or 6, which is characterized in that the window shape seam
The ratio between the bottom edge of gap (12) and height or the ratio between long and width are 1:1.
8. integral substrate gap waveguide ultra-wideband antenna according to claim 6, which is characterized in that the top dielectric plate
(1), blank medium plate (2) and layer dielectric plate (3) are all made of Rogers5880 plate, thickness be respectively 0.508mm,
0.254mm and 0.787mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910283181.6A CN109935965B (en) | 2019-04-10 | 2019-04-10 | Integrated substrate gap waveguide ultra-wideband antenna |
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| CN201910283181.6A CN109935965B (en) | 2019-04-10 | 2019-04-10 | Integrated substrate gap waveguide ultra-wideband antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690557A (en) * | 2019-09-26 | 2020-01-14 | 北京交通大学 | Broadband low-profile millimeter wave antenna |
| CN112928476A (en) * | 2021-01-22 | 2021-06-08 | 南阳师范学院 | 5G millimeter wave antenna based on SIGW |
| CN113871850A (en) * | 2021-08-19 | 2021-12-31 | 北京邮电大学 | Ridge gap waveguide feed microwave millimeter wave dual-frequency broadband super-surface antenna |
| CN113964512A (en) * | 2021-10-22 | 2022-01-21 | 云南大学 | Three-frequency integrated substrate gap waveguide cavity filtering antenna |
| CN114122697A (en) * | 2021-11-12 | 2022-03-01 | 长沙驰芯半导体科技有限公司 | Ceramic chip antenna for ultra-wideband system |
| CN114300839A (en) * | 2022-01-17 | 2022-04-08 | 云南大学 | Integrated substrate gap waveguide broadband antenna |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690557A (en) * | 2019-09-26 | 2020-01-14 | 北京交通大学 | Broadband low-profile millimeter wave antenna |
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| CN113871850B (en) * | 2021-08-19 | 2023-01-20 | 北京邮电大学 | Ridge gap waveguide feed microwave millimeter wave dual-frequency broadband super-surface antenna |
| CN113964512A (en) * | 2021-10-22 | 2022-01-21 | 云南大学 | Three-frequency integrated substrate gap waveguide cavity filtering antenna |
| CN114122697A (en) * | 2021-11-12 | 2022-03-01 | 长沙驰芯半导体科技有限公司 | Ceramic chip antenna for ultra-wideband system |
| CN114122697B (en) * | 2021-11-12 | 2023-06-02 | 长沙驰芯半导体科技有限公司 | Ceramic chip antenna for ultra-wideband system |
| CN114300839A (en) * | 2022-01-17 | 2022-04-08 | 云南大学 | Integrated substrate gap waveguide broadband antenna |
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| CN109935965B (en) | 2024-01-26 |
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