CN110165401A - Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna - Google Patents
Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna Download PDFInfo
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- CN110165401A CN110165401A CN201910485901.7A CN201910485901A CN110165401A CN 110165401 A CN110165401 A CN 110165401A CN 201910485901 A CN201910485901 A CN 201910485901A CN 110165401 A CN110165401 A CN 110165401A
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- medium plate
- dielectric
- slab
- copper
- substrate gap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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Abstract
The invention discloses integral substrate gap waveguide feed gaps to couple super surface circular polarized antenna, is constituted using four layers of dielectric-slab.There is the corner cut patch of periodic arrangement in first medium plate upper surface, forms irradiation structure；There is the first copper-clad in second medium plate upper surface, and lower surface printed microstrip feeder line forms class waveguiding structure transmission energy by the rectangular aperture etched on the first copper-clad and couples corner cut patch for energy；Third dielectric-slab is blank medium plate, for separating second medium plate and the 4th dielectric-slab；4th dielectric-slab upper surface is printed with circular patch, beats metallic vias thereon, and lower surface is the second copper-clad, collectively constitutes mushroom electromagnetic bandgap structure, increases the shielding of circuit.Integral substrate gap waveguide feed gaps of the present invention, which couple super surface circular polarized antenna, has the features such as low section, wide bandwidth, high-gain, easy processing, can serve as 5G millimeter wave antenna.
Description
Technical field
The present invention relates to a kind of wireless communication millimeter wave antennas, more particularly to integral substrate gap waveguide feed gaps coupling
Close super surface circular polarized antenna.
Background technique
With the development of communication system, people require to be continuously improved to the device frequency of microwave and millimeter wave frequency range, and tradition is micro-
When strip line structure is applied to upper frequency, biggish loss and leakage can be generated.
Integral substrate gap waveguide can preferably solve the above problems.The structure is based on multi-layer PCB technology, by microstrip line
It is encapsulated in electromagnetic bandgap structure, improves feeding network shielding.
In recent years, super surface texture is used for Antenna Design, can improve the performance of antenna various aspects, as spread bandwidth,
Improve gain, improve directional diagram etc., it has a good application prospect.
The present invention combines integral substrate gap waveguide and super surface texture for the first time, devises integral substrate gap waveguide feed
The super surface circular polarized antenna of slot-coupled, with integral substrate gap waveguide customer service conventional microstrip cable architecture millimeter wave frequency band office
It is sex-limited, good antenna performance is realized with super surface texture.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, providing integral substrate gap waveguide feed gaps
Super surface circular polarized antenna is coupled, solves the problems such as existing millimeter wave antenna narrower bandwidth, gain is lower, leakage is serious,
And it can be by this antenna applications in 5G millimeter wave frequency band.
The technical solution adopted by the invention is as follows:
Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna, including aerial radiation structure, integrated base
Piece gap waveguide structure, the aerial radiation structure, integral substrate gap waveguide structure using PCB technology from top to bottom successively
Arrangement overlaps to form；Integral substrate gap waveguide structure includes electromagnetic bandgap structure and is used for aerial radiation structural transmission energy
Class waveguide feed structure；The class waveguide feed structure includes second medium plate, and the upper surface of second medium plate is laid with
One copper-clad, the first copper-clad middle part etching have the gap；The lower surface of the second medium plate is provided with microstrip feed line, institute
Microstrip feed line is stated to extend from one end of second medium plate to the middle part of second medium plate and cross gap；The aerial radiation structure
Including first medium plate, the upper surface of first medium plate is provided with the corner cut patch of periodic arrangement.
Further, the invention also discloses integral substrate gap waveguide feed gaps to couple super surface circular polarized antenna
Preferred structure, the gap are rectangular aperture, and rectangular aperture etches in the middle part of the first copper-clad；The microstrip feed line fully passes over
Rectangular aperture.
Further, the lower surface of the first medium plate is provided with the first copper-clad, the first medium plate, corner cut patch
Piece and the first copper-clad form aerial radiation structure.
Further, the corner cut patch is symmetrically to cut two angles on diagonal line on the basis of square patch
It is formed, the angle cut is isosceles triangle.
Further, the second medium plate, the microstrip feed line of second medium plate lower surface, second medium plate upper surface
First copper-clad collectively forms class waveguide feed structure；The microstrip feed line provides energy to entire aerial radiation structure.
Further, it is provided with third dielectric-slab between the class waveguide feed structure and electromagnetic bandgap structure, described
Class waveguide feed structure is isolated by three dielectric-slabs with electromagnetic bandgap structure.
Further, the electromagnetic bandgap structure includes the 4th dielectric-slab, and the lower surface of the 4th dielectric-slab is provided with
Second copper-clad；The upper surface of 4th dielectric-slab be provided be printed with circular patch described in the circular patch of periodic arrangement with
It is provided with through-hole on the 4th dielectric-slab between second copper-clad, the center of circle of the axis of through-hole and circular patch is on the same line.
Further, sheet metal being provided on the side wall of the through-hole and forming metallic vias, metallic vias is applied second
Layers of copper is connected with circular patch.
Further, the metallic vias and the 4th of the 4th dielectric-slab upper surface is printed circular patch, periodic arrangement
Second copper-clad of dielectric-slab lower surface collectively forms mushroom electromagnetic bandgap structure；4th dielectric-slab can prevent by copper-clad and
The energy of microstrip feed line conveying leaks.
Further, the first medium plate, second medium plate, third dielectric-slab use dielectric constant for 2.2, loss angle
0.0009 material is just being cut to be made；4th dielectric-slab uses the material that dielectric constant is 0.02 for 4.4, loss angle tangent
It is made；The overall size of the antenna is 12mm*12mm*0.1.362mm.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. integral substrate gap waveguide feed gaps of the present invention couple super surface linear polarized antenna, by introducing integral substrate
Gap integral substrate gap waveguide structure, improves the transfer of energy properties of millimeter wave frequency band, by introducing super surface texture, changes
It has been apt to the radiance of antenna；
2. greatly reducing the thickness of antenna by the way that antenna to be integrated on substrate, the gain of antenna is improved, is improved
The broadband of antenna.
Detailed description of the invention
Fig. 1 is that integral substrate gap waveguide feed gaps couple super surface circular polarized antenna structure schematic diagram；
Fig. 2 is that integral substrate gap waveguide feed gaps couple super surface circular polarized antenna corner cut patch schematic diagram；
Fig. 3 is return loss, gain and the axis that integral substrate gap waveguide feed gaps couple super surface circular polarized antenna
Compare simulation result；
Fig. 4 is the directional diagram that integral substrate gap waveguide feed gaps couple super surface circular polarized antenna.
Marked in the figure: 1 is first medium plate, 2 be second medium plate, and 3 be third dielectric-slab, and 4 be the 4th dielectric-slab, and 5 are
Corner cut patch, 6 be rectangular aperture, and 7 be the first copper-clad, and 8 be microstrip feed line, and 9 be circular patch, and 10 be metallic vias, and 11 are
Second copper-clad.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1:
As shown in Figure 1, the present invention includes first medium plate 1, second medium plate 2, third dielectric-slab 3, the 4th dielectric-slab 4；
The first medium plate 1, second medium plate 2, third dielectric-slab 3, the 4th dielectric-slab 4 press together, and form an entirety.
ISGW substrate integrates gap waveguide, is the abbreviation of (Substrate Integrated Gap Waveguide, SIGW).
There is the corner cut patch 5 of periodic arrangement in 1 upper surface of first medium plate, as irradiation structure, 2 upper surface of second medium plate
There are the first copper-clad 7, the ground as antenna.
As shown in Fig. 2, the corner cut patch 5 is symmetrically to cut two on diagonal line on the basis of square patch
Angle is formed, and the angle cut is isosceles triangle.Corner cut patch 5 on square patch is diagonal by respectively cutting identical isosceles
Right angled triangle obtains, and by changing equivalent impedance, realizes circular polarization characteristics.
Integral substrate gap waveguide structure is made of second medium plate 2, third dielectric-slab 3, the 4th dielectric-slab 4；Second is situated between
There are the first copper-clad 7,2 lower surface printed microstrip feeder line 8 of second medium plate in 2 upper surface of scutum；It is etched on first copper-clad 7
Rectangular aperture 6；Third dielectric-slab 3 is blank medium plate, for separating second medium plate 2 and the 4th dielectric-slab 4；4th dielectric-slab
4 upper surfaces are printed with the circular patch 9 of periodic arrangement, and the metallic vias 10 of periodic arrangement, lower surface are provided on the 4th dielectric-slab 4
For the second copper-clad 11.
There is the first copper-clad 7 in 2 upper surface of second medium plate, the lower surface printed microstrip feeder line 8 of second medium plate 2, and second
Dielectric-slab 2, the first copper-clad 7, microstrip feed line 8 collectively form class waveguiding structure, transmit energy.
Period circular patch 9,10 and of period metallic vias on the 4th dielectric-slab 4 of 4th dielectric-slab, 4 upper surface printing
The second copper-clad of lower surface 11 collectively forms mushroom electromagnetic bandgap structure, and the 4th dielectric-slab 4 of monolith is equivalent to perfect magnetic conductor,
It can prevent the energy conveyed by the first copper-clad 7 and microstrip feed line 8 from leaking.
4th dielectric-slab, 4 upper surface is printed with circular patch 9, beats metallic vias 10, circular patch 9 and metal mistake thereon
Hole 10 correspond and with one heart.
Rectangular aperture 6 is etched on first copper-clad 7,8 end of microstrip feed line passes through rectangle only slight beyond rectangular aperture 6
Gap 6 is fed to the corner cut patch 5 of 1 upper surface of first medium plate.
In integral substrate gap waveguide structure, in order to make the work of mushroom electromagnetic bandgap structure in required frequency band, need
It chooses the size of circular patch 9 and metallic vias 10 properly to determine the stopband of mushroom electromagnetic bandgap structure, makes itself and antenna
Working band coincide.
Integral substrate gap waveguide feed gaps of the present invention couple super surface linear polarized antenna, by introducing between integral substrate
Gap waveguiding structure improves the transfer of energy properties of millimeter wave frequency band, by introducing super surface texture, improves the radiation of antenna
Performance.
By the way that antenna to be integrated on substrate, the thickness of antenna is greatly reduced, the gain of antenna is improved, improves day
The broadband of line.
Embodiment 2:
Described in embodiment 1 as above, first medium plate 1, second medium plate 2, third dielectric-slab 3 use dielectric constant for 2.2,
Loss angle tangent is made of 0.0009 material；It for 4.4, loss angle tangent is 0.02 that 4th dielectric-slab 4, which uses dielectric constant,
Material is made.The overall size of the antenna is 12mm*12mm*0.1.362mm.
Attached return loss shown in Fig. 3, gain and axis show integral substrate gap waveguide feed of the present invention than simulation result
Super surface circular polarized antenna centre frequency 28.08GHz ,-the 10dB impedance bandwidth of slot-coupled is 25.34GHz-30.81GHz, absolutely
To bandwidth 5.47GHz, relative bandwidth 19.5%, 3dB axial ratio bandwidth is 28.15GHz-32.28GHz, absolute bandwidth 4.13GHz,
Relative bandwidth 14.7%, gain reaches 8.9dBi-10.35dBi in impedance bandwidth band.
As shown in Fig. 4, as seen from the figure, be the directional diagram of antenna, by directional diagram it is found that perpendicular to first medium plate 1, simultaneously
For the electromagnetic radiation intensity in the E face parallel with microstrip feed line 8 at 0 ° of direction, radiation intensity has reached maximum；Perpendicular to first
The dielectric-slab 1 and electromagnetic radiation intensity in the H face parallel with rectangular aperture 6 is at 0 ° of direction, radiation intensity has reached maximum.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. integral substrate gap waveguide feed gaps couple super surface circular polarized antenna, it is characterised in that: including aerial radiation knot
Structure, integral substrate gap waveguide structure, the aerial radiation structure, integral substrate gap waveguide structure are using PCB technology from upper
It is arranged successively and overlaps to form under；Integral substrate gap waveguide structure includes electromagnetic bandgap structure and is used for aerial radiation structure
Transmit the class waveguide feed structure of energy；The class waveguide feed structure includes second medium plate (2), second medium plate (2)
Upper surface is laid with the first copper-clad (7), and etching has the gap in the middle part of first copper-clad (7)；The second medium plate (2)
Lower surface is provided with microstrip feed line (8), and the microstrip feed line (8) is from one end of second medium plate (2) to second medium plate (2)
Middle part extends and crosses gap；The aerial radiation structure includes first medium plate (1), and the upper surface of first medium plate (1) is set
It is equipped with the corner cut patch (5) of periodic arrangement.
2. integral substrate gap waveguide feed gaps as described in claim 1 couple super surface circular polarized antenna, feature exists
In: the gap is rectangular aperture (6), and rectangular aperture (6) etching is in the middle part of the first copper-clad (7)；The microstrip feed line (8) is complete
Cross rectangular aperture (6) entirely.
3. integral substrate gap waveguide feed gaps as claimed in claim 1 or 2 couple super surface circular polarized antenna, feature
Be: the lower surface of the first medium plate (1) is provided with the first copper-clad (7), the first medium plate (1), corner cut patch
(5) aerial radiation structure is formed with the first copper-clad (7).
4. integral substrate gap waveguide feed gaps as claimed in claim 3 couple super surface circular polarized antenna, feature exists
In: the corner cut patch (5) is symmetrically to cut two on diagonal line angles on the basis of square patch and formed, described to cut
The angle gone is isosceles triangle.
5. integral substrate gap waveguide feed gaps as claimed in claim 4 couple super surface circular polarized antenna, feature exists
In: the second medium plate (2), the microstrip feed line (8) of second medium plate (2) lower surface, second medium plate (2) upper surface
One copper-clad (7) collectively forms class waveguide feed structure；The microstrip feed line (8) provides energy to entire aerial radiation structure.
6. claim 3-4 wherein as described in integral substrate gap waveguide feed gaps couple super surface circular polarized antenna,
It is characterized by: being provided with third dielectric-slab (3) between the class waveguide feed structure and electromagnetic bandgap structure, the third is situated between
Class waveguide feed structure is isolated by scutum (3) with electromagnetic bandgap structure.
7. integral substrate gap waveguide feed gaps as claimed in claim 6 couple super surface circular polarized antenna, feature exists
In: the electromagnetic bandgap structure includes the 4th dielectric-slab (4), and the lower surface of the 4th dielectric-slab (4) is provided with the second deposited copper
Layer (11)；The upper surface of 4th dielectric-slab (4) is provided with circular patch (9) the described circular patch for being printed with periodic arrangement
(9) through-hole, the axis of through-hole and the circle of circular patch (9) are provided on the 4th dielectric-slab (4) between the second copper-clad (11)
The heart is on the same line.
8. integral substrate gap waveguide feed gaps as claimed in claim 7 couple super surface circular polarized antenna, feature exists
In: it is provided with sheet metal on the side wall of the through-hole and is formed metallic vias (10), metallic vias (10) is by the second copper-clad
(11) it is connected with circular patch (9).
9. integral substrate gap waveguide feed gaps as claimed in claim 8 couple super surface circular polarized antenna, feature exists
In: the metallic vias (10) and the 4th medium of circular patch (9), periodic arrangement that the 4th dielectric-slab (4) upper surface is printed
Second copper-clad (11) of plate (4) lower surface collectively forms mushroom electromagnetic bandgap structure；4th dielectric-slab (4) can be prevented by applying
Layers of copper (7) and the energy of microstrip feed line (8) conveying leak.
10. claim 7-9 wherein as described in integral substrate gap waveguide feed gaps couple super surface circular polarized antenna,
It is characterized by: the first medium plate (1), second medium plate (2), third dielectric-slab (3) use dielectric constant for 2.2, damage
The material that consumption angle is just being cut to 0.0009 is made；4th dielectric-slab (4) uses the dielectric constant to be for 4.4, loss angle tangent
0.02 material is made；The overall size of the antenna is 12mm*12mm*0.1.362mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485901.7A CN110165401A (en) | 2019-06-05 | 2019-06-05 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
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| CN201910485901.7A CN110165401A (en) | 2019-06-05 | 2019-06-05 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
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| CN110165401A true CN110165401A (en) | 2019-08-23 |
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| CN201910485901.7A Pending CN110165401A (en) | 2019-06-05 | 2019-06-05 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
| CN113948855A (en) * | 2021-10-22 | 2022-01-18 | 云南大学 | Circularly polarized antenna |
| CN114361775A (en) * | 2021-12-20 | 2022-04-15 | 南京信息工程大学 | Wearable antenna of circular polarization |
| CN115133264A (en) * | 2022-06-20 | 2022-09-30 | 天津大学 | Radar antenna unit integrated with solar cell |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
| CN113948855A (en) * | 2021-10-22 | 2022-01-18 | 云南大学 | Circularly polarized antenna |
| CN114361775A (en) * | 2021-12-20 | 2022-04-15 | 南京信息工程大学 | Wearable antenna of circular polarization |
| CN114361775B (en) * | 2021-12-20 | 2023-05-16 | 南京信息工程大学 | Circular polarization wearable antenna |
| CN115133264A (en) * | 2022-06-20 | 2022-09-30 | 天津大学 | Radar antenna unit integrated with solar cell |
| CN115133264B (en) * | 2022-06-20 | 2023-09-15 | 天津大学 | Radar antenna unit integrated with solar cell |
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