CN116565524A - Substrate integrated waveguide antenna and antenna device - Google Patents
Substrate integrated waveguide antenna and antenna device Download PDFInfo
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- CN116565524A CN116565524A CN202210113461.4A CN202210113461A CN116565524A CN 116565524 A CN116565524 A CN 116565524A CN 202210113461 A CN202210113461 A CN 202210113461A CN 116565524 A CN116565524 A CN 116565524A
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- integrated waveguide
- substrate integrated
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- waveguide antenna
- slot
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- 239000000758 substrate Substances 0.000 title claims abstract description 116
- 239000002184 metal Substances 0.000 claims abstract description 114
- 229910052751 metal Inorganic materials 0.000 claims abstract description 114
- 230000005855 radiation Effects 0.000 claims abstract description 43
- 238000010586 diagram Methods 0.000 description 12
- 230000010363 phase shift Effects 0.000 description 11
- 239000011521 glass Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- 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
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Waveguide Aerials (AREA)
Abstract
The embodiment of the invention provides a substrate integrated waveguide antenna and an antenna device. The substrate integrated waveguide antenna comprises a dielectric substrate and a metal patch; the metal patch is attached to the dielectric substrate; a gap groove is formed in the metal patch, metal through holes are formed in one side or two sides of the gap groove, the metal through holes and the gap groove are arranged at intervals, and the gap groove and the metal through holes penetrate through the metal patch; the size of the slot in the first direction is a first value, the size of the slot in the second direction is a second value, the first direction is the direction in which the direction of the connecting line of the metal via hole and the slot is positioned on the same straight line, the second direction is the direction perpendicular to the first direction, and the first value and the second value are the sizes of the slot required when the substrate integrated waveguide antenna reaches a preset radiation gain value. Thus, the reflection quantity of the substrate integrated waveguide antenna can be increased, so that the radiation gain of the substrate integrated waveguide antenna is improved.
Description
Technical Field
The invention relates to the technical field of signal equipment, in particular to an integrated waveguide slot antenna and an antenna device.
Background
The traditional waveguide slot array antenna has the remarkable advantages of compact structure, high gain, easy realization of ultra-low side lobe requirements and the like, and therefore, the traditional waveguide slot array antenna is widely applied. The substrate integrated waveguide inherits the characteristics of small metal waveguide loss and high quality factor, has small volume, light weight, low cost and easy integration with other planar circuits, can overcome the electromagnetic wave leakage problem of the traditional planar transmission lines such as micro-strip, coplanar waveguide and the like, and is a waveguide structure with excellent performance and very good application prospect.
However, the combination of the matching via hole and the slot of the substrate integrated waveguide antenna affects the radiation intensity, and how to control the size of the matching via hole and the slot of the substrate integrated waveguide antenna becomes a technical problem to be solved by the substrate integrated waveguide antenna.
Disclosure of Invention
The embodiment of the invention provides a substrate integrated waveguide antenna and an antenna device, which are used for solving the problem of insufficient radiation gain of the substrate integrated waveguide antenna in the prior art.
In order to solve the technical problems, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a substrate integrated waveguide antenna, where the substrate integrated waveguide antenna includes a dielectric substrate and a metal patch;
the metal patch is attached to the dielectric substrate;
a gap groove is formed in the metal patch, metal through holes are formed in one side or two sides of the gap groove, the metal through holes and the gap groove are arranged at intervals, and the gap groove and the metal through holes penetrate through the metal patch;
the dimension of the slot groove in the first direction is a first value, the dimension of the slot groove in the second direction is a second value, wherein the first direction is the direction in which the connecting line of the metal via hole and the slot groove is positioned on the same straight line, the second direction is the direction perpendicular to the first direction, and the first value and the second value are the dimension of the slot groove required when the substrate integrated waveguide antenna reaches a preset radiation gain value.
Optionally, the substrate integrated waveguide antenna further comprises a phase shifting unit;
the phase shifting unit is arranged between any two of the slit grooves, is of a through groove structure and penetrates through the metal patch and the dielectric substrate.
Optionally, the section of the phase shifting unit along the first direction is square;
four corners of the cross section are provided with rectangular notches, and the sizes of the rectangular notches at the four corners are the same, wherein the first direction is a direction parallel to a plane where the metal patch is located.
Optionally, the side length of the square section is 5.20mm, the length of the long side of the rectangular notch is 0.4mm, and the length of the short side of the rectangular notch is 0.35mm, wherein the long side of the rectangular notch is consistent with the long side of the metal patch, and the short side of the rectangular notch is consistent with the short side of the metal patch.
Optionally, the phase shifting unit is disposed at a position near the end of the substrate integrated waveguide antenna.
Optionally, the distance between the metal via hole and the slit groove is a third value, and the third value is greater than or equal to 0.5mm and less than or equal to 5mm.
Optionally, a distance between the metal via and the slit groove is 3.5mm.
Optionally, the first value is 1.2mm and the second value is 6.7mm.
Optionally, under the condition that a plurality of metal vias are formed on one side or two sides of the slit groove, the distance between every two adjacent metal vias on the same side is equal.
Optionally, an included angle is formed between the extending direction of the slit groove and a straight line where the edge of the metal patch is located.
In a second aspect, an embodiment of the present invention further provides an antenna apparatus, where the antenna apparatus includes a plurality of substrate integrated waveguide antennas according to any of the embodiments of the first aspect;
and a plurality of substrate integrated waveguide antennas are arranged in parallel.
In the embodiment of the invention, the metal patch is provided with the slot groove, one side or two sides of the slot groove are provided with the metal via holes, and the metal via holes and the slot groove are arranged at intervals, so that on one hand, the port reflection parameter of the substrate integrated waveguide antenna can be increased by arranging the metal via holes on one side or two sides of the slot groove, and further, the reflection quantity of the substrate integrated waveguide antenna can be increased, the radiation gain of the substrate integrated waveguide antenna can be improved, and on the other hand, the size of the slot groove required when the slot groove reaches a preset radiation gain value can be improved by optimizing the sizes of the slot groove in the first direction and the second direction. In summary, in the embodiment of the invention, the metal through hole is formed on one side or two sides of the slot groove, and the size of the slot groove is optimized, so that the port reflection parameter of the substrate integrated waveguide antenna is increased, the reflection quantity of the substrate integrated waveguide antenna is increased, and the radiation gain of the substrate integrated waveguide antenna is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic structural diagram of a substrate integrated waveguide antenna according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another substrate integrated waveguide antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a metal patch according to an embodiment of the present invention;
fig. 4 shows a schematic enlarged view of a portion of a metal patch at a provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the positions of a slot and a metal through hole formed in a metal patch according to an embodiment of the present invention;
fig. 6 shows a schematic dimensional structure of a metal patch according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first slit formed in a metal patch according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second slit formed in a metal patch according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a third slit formed in a metal patch according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a fourth slit formed in a metal patch according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an antenna device according to an embodiment of the present invention.
Reference numerals:
1, a substrate integrated waveguide antenna; 11, a dielectric substrate; 12: a metal patch; 121: a slit groove; 122: a metal via; 123: and a phase shift unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In a first aspect, an embodiment of the present invention provides a substrate integrated waveguide antenna, fig. 1 shows a schematic structural diagram of a substrate integrated waveguide antenna provided by the embodiment of the present invention, fig. 2 shows a schematic structural diagram of another substrate integrated waveguide antenna provided by the embodiment of the present invention, and fig. 3 shows a schematic structural diagram of a metal patch provided by the embodiment of the present invention, where, as shown in fig. 1, fig. 2 and fig. 3, the substrate integrated waveguide antenna includes a dielectric substrate 1 and a metal patch 2; the metal patch 2 is attached to the dielectric substrate 1; a gap groove 121 is formed in the metal patch 2, one side or two sides of the gap groove 121 are provided with metal through holes 122, the metal through holes 122 and the gap groove 121 are arranged at intervals, and the gap groove 121 and the metal through holes 122 penetrate through the metal patch 2; the dimension of the slot 121 in the first direction is a first value, the dimension of the slot 121 in the second direction is a second value, wherein the first direction is a direction in which the direction of the connection line of the metal via 122 and the slot 121 is located on the same line, the second direction is a direction perpendicular to the first direction, and the first value and the second value are the dimensions of the slot 121 required for enabling the substrate integrated waveguide antenna to reach a preset radiation gain value.
The dielectric substrate 1 is a base portion for forming a substrate integrated waveguide antenna, and is typically a glass substrate or a microstrip substrate. The metal patch 2 is the main part of the substrate integrated waveguide antenna transmitting and receiving signals. In the embodiment of the invention, the dielectric substrate 1 is taken as a glass substrate, and the metal patch 2 is taken as a copper patch as an example. Specifically, in one possible implementation manner, the glass substrate is in a sheet structure, the copper patch may be attached to the upper surface of the glass substrate, or may be attached to both the upper surface and the lower surface of the glass substrate, where the upper surface and the lower surface of the glass substrate are two surfaces opposite to each other, and the embodiment of the present invention is not limited to this. Under the condition that copper patches are attached to the upper surface of the glass substrate, as the upper surface and the lower surface are two surfaces which are basically opposite to each other, under the condition that the gap grooves 121 are formed in the copper patches attached to the upper surface and the copper patches attached to the lower surface, the single substrate integrated waveguide antenna can realize 360-degree signal coverage. In another possible implementation, the glass substrate is a cuboid substrate with a certain thickness, and the metal patches 2 can be attached on any three surfaces of the glass substrate to ensure signal coverage in different directions.
In the embodiment of the invention, in order to increase the radiation amount of the substrate integrated waveguide antenna, a slot 121 is formed on the metal patch 2, a metal via 122 is formed on one side or both sides of the slot 121, the metal via 122 and the slot 121 are arranged at intervals, and the slot 121 and the metal via 122 penetrate through the metal patch 2. After the metal via hole 122 is added to one side or two sides of the slot 121, the port reflection parameter and the radiation effect of the substrate integrated waveguide antenna can be changed. Specifically, under the condition that the size of the slot 121 is not changed, if a via hole is added on one side of the slot 121, the port reflection parameter of the substrate integrated waveguide antenna reaches 13.42dB below zero, and the reflection quantity of the substrate integrated waveguide antenna is increased, so that the radiation gain of the substrate integrated waveguide antenna reaches 5.14dB. In the embodiment of the present invention, the metal vias 122 may be added to one side of the slot 121, the metal vias 122 may be added to two sides of the slot 121, and the number of the metal vias 122 added to one side of the slot 121 may be one or plural.
In addition, changing the size of the slot 121 may improve the radiation gain of the integrated waveguide antenna by optimizing the size of the slot 121. Specifically, as shown in fig. 6, the size of the slit groove 121 in the first direction is the size of the slit groove 121 in the x direction, and the size of the slit groove 121 in the second direction is the size of the slit groove 121 in the y direction. In one possible implementation, the first value is 1.2mm, the second value is 6.7mm, that is, the size of the slot 121 in the x direction is 1.2mm, and the size in the y direction is 6.7mm, in which case, the port reflection parameter of the substrate integrated waveguide antenna may be reached to-16.95 dB, so that the radiation gain of the substrate integrated waveguide antenna may reach to 3.24dB.
As can be seen from the foregoing embodiments, in the embodiment of the present invention, since the metal patch 2 is provided with the slot 121, one side or two sides of the slot 121 are provided with the metal via hole 122, and the metal via hole 122 and the slot 121 are disposed at intervals, the slot 121 and the metal via hole 122 penetrate through the metal patch 2, so that on one hand, the port reflection parameter of the substrate integrated waveguide antenna can be increased, and further, the reflection amount of the substrate integrated waveguide antenna can be increased, so that the radiation gain of the substrate integrated waveguide antenna can be improved, and on the other hand, the size of the slot 121 required when the slot 121 reaches the preset radiation gain value can be optimized, so that the radiation gain of the substrate integrated waveguide antenna can be improved. In summary, in the embodiment of the present invention, by forming the metal through hole on one side or both sides of the slot 121 and optimizing the size of the slot 121, the port reflection parameter of the integrated waveguide antenna can be increased, so as to increase the reflection amount of the integrated waveguide antenna and improve the radiation gain of the integrated waveguide antenna.
In some embodiments, the radiation gain of the integrated waveguide antenna may be changed by optimizing the position of the slot and optimizing the shape of the slot, or by changing the alignment between the metal via 122 and the slot 121, or by adding the phase shift unit 123, as follows:
in the case of changing the radiation gain of the substrate integrated waveguide antenna by adding the phase shift unit 123, specifically, as shown in fig. 3, the substrate integrated waveguide antenna further includes the phase shift unit 123; the phase shifting unit 123 is arranged between any two slot grooves 121, the phase shifting unit 123 is of a through groove structure, and the phase shifting unit 123 penetrates through the metal patch 2 and the dielectric substrate 1.
It should be noted that by adding a phase delay to the metal substrate, as shown in fig. 6, the waveguide array can be manipulated in the metal substrate as shown in the y-z plane (e-plane) of the figure, and the phase delay can be changed by changing the line length, i.e., different frequencies will generate different phase delays, so that only the frequency needs to be changed to scan. Because the phase shifting unit 123 has a through slot structure, the phase shifting unit 123 can be equivalently a metal via 122, so that interference on the radiation signal of the substrate integrated waveguide is reduced, attenuation of the radiation signal is reduced, and radiation gain of the substrate integrated waveguide antenna is improved.
Alternatively, as shown in fig. 4, the phase shift unit 123 has a square cross section in the first direction; the four corners of the cross section are provided with rectangular notches, and the sizes of the rectangular notches at the four corners are the same, wherein the first direction is the direction parallel to the plane where the metal patch 2 is located.
It should be noted that, since the section of the phase shift unit 123 along the first direction is square, four corners of the section have rectangular notches, and the dimensions of the rectangular notches at the four corners are the same, a phase shift angle with a certain degree can be formed at the through slot structure where the rectangular notch is located, so as to further improve the signal radiation area of the substrate integrated waveguide antenna.
Alternatively, as shown in fig. 4, the side length of the square section is 5.20mm, the length of the long side of the rectangular notch is 0.4mm, and the length of the short side of the rectangular notch is 0.35mm, wherein the long side of the rectangular notch is consistent with the long side of the metal patch 2, and the short side of the rectangular notch is consistent with the short side of the metal patch 2.
It should be noted that, because the side length of the square section is 5.20mm, the length of the long side of the rectangular notch is 0.4mm, and the length of the short side of the rectangular notch is 0.35mm, a through slot structure with l1=4.80 mm, l2=5.20 mm, w1=0.35 mm section as shown in fig. 4 can be formed, and then a phase shift angle of 360 degrees can be obtained, so that the signal radiation area of the substrate integrated waveguide antenna is further improved, and the radiation gain of the integrated waveguide antenna is improved.
Alternatively, the phase shift unit 123 is disposed at a position near the end of the substrate integrated waveguide antenna.
In the case where the phase shift unit 123 is disposed at a position near the end of the integrated waveguide antenna, the signal of the integrated waveguide antenna can be shifted to the maximum extent, thereby achieving the effect of changing the phase delay.
In addition, it should be noted that, when the substrate integrated waveguide antenna and the phase shift unit 123 are assembled, the amplitude and the phase of the substrate integrated waveguide antenna may be modulated, and the resonant waveguide slot array antenna is adopted, so that the center distance of each slot 121 is λ/2, which may further improve the radiation gain of the substrate integrated waveguide antenna.
In the case of changing the radiation gain of the substrate integrated waveguide antenna by changing the alignment relationship between the metal via 122 and the slot 121, the distance between the metal via 122 and the slot 121 may be made to be a third value, which is greater than or equal to 0.5mm and less than or equal to 5mm.
It should be noted that, through simulation of the port parameters of the integrated waveguide antenna, as shown in fig. 5, the distance between the metal via hole 122 and the slot 121 is equal to or less than 0.5mm and is equal to or less than 5mm, so that the reflection parameters of the integrated waveguide antenna can be improved, and the loss parameters of the integrated waveguide antenna can be reduced, that is, when the distance between the metal via hole 122 and the slot 121 is a third value, the reflection amount of the integrated waveguide antenna can be increased, the loss amount of the integrated waveguide antenna can be reduced, and the radiation gain of the integrated waveguide antenna can be improved. Wherein the distance between the metal via 122 and the slit groove 121 is as sized as shown in fig. 5 d.
Alternatively, the distance between the metal via 122 and the slit groove 121 is 3.5mm.
It should be noted that, under the condition that the distance between the metal via hole 122 and the slot groove 121 is 3.5mm, the reflection parameter of the substrate integrated waveguide antenna can reach-12.42 dB, the loss parameter of the substrate integrated waveguide antenna reaches-2.4 dB, and then the radiation gain of the substrate integrated waveguide antenna is maximized.
In addition, in the case where a plurality of metal vias 122 are opened at one side or both sides of the slit groove 121, the interval between every two adjacent metal vias 122 located at the same side is equal. Thereby increasing the radiation gain of the integrated waveguide antenna formed by each metal via 122 by a multiple, and further avoiding the mutual influence between the two metal vias 122,
in the case of changing the radiation gain of the substrate integrated waveguide antenna by optimizing the position of the slot and optimizing the shape of the slot, an angle is formed between the extending direction of the slot 121 and the straight line where the edge of the metal patch 2 is located.
As shown in fig. 6, the slit groove 121 (see fig. 7) of the transverse slit type has a narrow beam width in the x-z plane (h plane) and a wide beam width in the y-z plane (e plane). The transverse seam (as in fig. 4) has a narrow beam width in the x-z plane (h-plane) and a wide beam width in the y-z plane (e-plane). This is directly related to the physical dimensions of the slot, which is shorter along the e-plane than along the h-plane for transverse slots, so that its corresponding beam width is wide. In this case the z-component of the current will not be disturbed because the gap is thin and the z-current does not need to propagate around the gap. Thus, the x-component of the current will cause radiation and propagate around the slit. Based on this, as shown in fig. 7, 8 and 9, an included angle may be formed between the extending direction of the slot 121 and a straight line where the edge of the metal patch 2 is located, that is, the extending direction of the slot 121 rotates around the central axis direction of the slot 121 by an angle, so that the slot 121 will interfere with the Z component of the current density, so that the slot 121 also generates signal radiation, and further, the radiation gain of the substrate integrated waveguide antenna is improved.
As can be seen from the foregoing embodiments, in the embodiment of the present invention, since the metal patch 2 is provided with the slot 121, one side or two sides of the slot 121 are provided with the metal via hole 122, and the metal via hole 122 and the slot 121 are disposed at intervals, the slot 121 and the metal via hole 122 penetrate through the metal patch 2, so that on one hand, the port reflection parameter of the substrate integrated waveguide antenna can be increased, and further, the reflection amount of the substrate integrated waveguide antenna can be increased, so that the radiation gain of the substrate integrated waveguide antenna can be improved, and on the other hand, the size of the slot 121 required when the slot 121 reaches the preset radiation gain value can be optimized, so that the radiation gain of the substrate integrated waveguide antenna can be improved. In summary, in the embodiment of the present invention, by forming the metal through hole on one side or both sides of the slot 121 and optimizing the size of the slot 121, the port reflection parameter of the integrated waveguide antenna can be increased, so as to increase the reflection amount of the integrated waveguide antenna and improve the radiation gain of the integrated waveguide antenna.
In addition, the radiation gain of the substrate integrated waveguide antenna can be changed by optimizing the position of the slot, optimizing the shape of the slot, changing the alignment relationship between the metal via 122 and the slot groove 121 or adding the phase shifting unit 123, so that the reflection quantity of the substrate integrated waveguide antenna is improved, the loss quantity of the substrate integrated waveguide antenna is reduced, and the effect of improving the radiation gain of the integrated waveguide antenna is achieved.
In addition, as shown in fig. 11, the embodiment of the present invention further provides an antenna device, where the antenna device includes a plurality of the substrate integrated waveguide antennas 1 described in any one of the above embodiments, and the plurality of substrate integrated waveguide antennas 1 are disposed in parallel. It should be noted that, because of the longer size of each of the integrated waveguide antennas 1, the corresponding beam of each of the integrated waveguide antennas 1 is narrower. The improvement of the beam narrowing can be performed by arranging each of the substrate integrated waveguide antennas 1 in parallel in the form of an array. Based on this, by arranging the plurality of substrate integrated waveguide antennas 1 in parallel, the beam width of the E-plane can be greatly reduced, and thus the radiation gain of the antenna device can be improved. Besides, the terminal of the antenna device can be short-circuited, the matching load is increased, electromagnetic waves at the terminal are absorbed, the energy return is prevented from forming echo reflection, the characteristic of wide frequency band and high gain can be maintained to a certain extent, a standing wave array is formed, and the radiation gain of the antenna device is improved.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While alternative embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.
While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the invention, and while in accordance with the principles and implementations of the invention, those skilled in the art will readily recognize that the invention is not limited thereto.
Claims (11)
1. The substrate integrated waveguide antenna is characterized by comprising a dielectric substrate and a metal patch;
the metal patch is attached to the dielectric substrate;
a gap groove is formed in the metal patch, metal through holes are formed in one side or two sides of the gap groove, the metal through holes and the gap groove are arranged at intervals, and the gap groove and the metal through holes penetrate through the metal patch;
the dimension of the slot groove in the first direction is a first value, the dimension of the slot groove in the second direction is a second value, wherein the first direction is the direction in which the connecting line of the metal via hole and the slot groove is positioned on the same straight line, the second direction is the direction perpendicular to the first direction, and the first value and the second value are the dimension of the slot groove required when the substrate integrated waveguide antenna reaches a preset radiation gain value.
2. The substrate integrated waveguide antenna of claim 1, further comprising a phase shifting element;
the phase shifting unit is arranged between any two of the slit grooves, is of a through groove structure and penetrates through the metal patch and the dielectric substrate.
3. The substrate integrated waveguide antenna of claim 2, wherein the phase shifting unit has a square cross section along the first direction;
four corners of the cross section are provided with rectangular notches, and the sizes of the rectangular notches at the four corners are the same, wherein the first direction is a direction parallel to a plane where the metal patch is located.
4. The substrate integrated waveguide antenna of claim 3, wherein the square cross section has a side length of 5.20mm, the long side of the rectangular notch has a length of 0.4mm, and the short side of the rectangular notch has a length of 0.35mm, wherein the long side of the rectangular notch is identical to the long side of the metal patch, and the short side of the rectangular notch is identical to the short side of the metal patch.
5. The substrate integrated waveguide antenna of claim 4, wherein the phase shifting unit is disposed at a position of the substrate integrated waveguide antenna near an end portion.
6. The substrate integrated waveguide antenna of claim 1, wherein a distance between the metal via and the slot is a third value, the third value being greater than or equal to 0.5mm and less than or equal to 5mm.
7. The substrate integrated waveguide antenna of claim 6, wherein a distance between the metal via and the slot groove is 3.5mm.
8. The substrate integrated waveguide antenna of claim 1, wherein the first value is 1.2mm and the second value is 6.7mm.
9. The substrate integrated waveguide antenna according to claim 1, wherein in a case where a plurality of metal vias are formed on one side or both sides of the slot, a pitch between every two adjacent metal vias on the same side is equal.
10. The substrate integrated waveguide antenna of claim 1, wherein an included angle is formed between an extending direction of the slot and a straight line where an edge of the metal patch is located.
11. An antenna arrangement, characterized in that it comprises a plurality of substrate integrated waveguide antennas according to any of claims 1-10;
and a plurality of substrate integrated waveguide antennas are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210113461.4A CN116565524A (en) | 2022-01-29 | 2022-01-29 | Substrate integrated waveguide antenna and antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210113461.4A CN116565524A (en) | 2022-01-29 | 2022-01-29 | Substrate integrated waveguide antenna and antenna device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116565524A true CN116565524A (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210113461.4A Pending CN116565524A (en) | 2022-01-29 | 2022-01-29 | Substrate integrated waveguide antenna and antenna device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116565524A (en) |
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2022
- 2022-01-29 CN CN202210113461.4A patent/CN116565524A/en active Pending
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