CN109980363A - Array antenna based on substrate integration wave-guide - Google Patents
Array antenna based on substrate integration wave-guide Download PDFInfo
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- CN109980363A CN109980363A CN201711460216.6A CN201711460216A CN109980363A CN 109980363 A CN109980363 A CN 109980363A CN 201711460216 A CN201711460216 A CN 201711460216A CN 109980363 A CN109980363 A CN 109980363A
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- medium plate
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- slab
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0037—Particular feeding systems linear waveguide fed arrays
- H01Q21/0043—Slotted waveguides
- H01Q21/005—Slotted waveguides arrays
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Abstract
The embodiment of the present application provides a kind of array antenna based on substrate integration wave-guide, comprising: first medium plate and the second medium plate positioned at the top of first medium plate；First medium plate is the substrate integration wave-guide for being provided with two rows of plated-through holes along the longitudinal direction；N number of radiation patch of array arrangement is placed on second medium plate, N number of radiation patch is located between two rows of plated-through holes, and the upper surface of the first medium plate is etched with N number of groove, and N number of radiation patch is located at the top of N number of groove correspondingly；The hole communicated with two rows of plated-through holes is provided on second medium plate；The size that array antenna meets following at least one at least one radiation patch of condition is different, at least one groove size is different, at least one radiation patch is different from the relative position between the corresponding groove.Therefore, so that N number of radiating element is not all of equally, to increase the bandwidth of array antenna.
Description
Technical field
The invention relates to field of communication technology more particularly to a kind of array antennas based on substrate integration wave-guide.
Background technique
Substrate integration wave-guide (Substrate Integrated Waveguide, SIW) has low insertion loss, high-quality
The advantages that factor, high power capacity, and its production cost and design complexities have in microwave and millimeter wave frequency range it is incomparable
Advantage, therefore, SIW is applied to field of antenna, it can be achieved that antenna planarization and miniaturization, and can realize antenna and circuit
It is integrated.Presently, there are a kind of patch array antenna of series feed, this is a kind of low cost, high-gain and high efficiency
Antenna, be the micro-strip paster antenna using feeding substrate integrated waveguide, the feeding network of array be first using series feed,
It is combined again using the power splitter of substrate integration wave-guide form, this antenna can be realized 7.2% relative impedances bandwidth.But
It is, since each antenna element size of this antenna is the same, to cause the bandwidth of antenna still not wide enough.
Summary of the invention
The embodiment of the present application provides a kind of array antenna based on substrate integration wave-guide, for improving the band of array antenna
It is wide.
The embodiment of the present application provides a kind of array antenna based on substrate integration wave-guide, comprising:
First medium plate and second medium plate, the second medium plate are located at the top of the first medium plate；
The upper and lower surface of the first medium plate is metal layer, and the first medium plate is to be provided with two rows along the longitudinal direction
The substrate integration wave-guide of plated-through hole；
N number of radiation patch of array arrangement is placed on the second medium plate, the N is the integer greater than 1；The N
A radiation patch is located between two rows of plated-through holes, and the upper surface of the first medium plate is etched with N number of groove, and
N number of radiation patch is located at the top of N number of groove correspondingly；
Wherein, the array antenna meets following at least one condition: at least one radiation patch in N number of radiation patch
The size of piece is different, the size of at least one groove is different in N number of groove, at least one spoke in N number of radiation patch
The relative position penetrated between patch and the corresponding groove is different.Therefore, the bandwidth of the array antenna of the present embodiment is higher.
In a kind of possible design, the end of feeding substrate integrated waveguide is provided with a row in the first medium plate
Lateral short circuit metal column, to realize short circuit.
In a kind of possible design, in the short circuit metal column and the array antenna between nearest radiation patch
Distance is equal to (M+1/4) times of the corresponding waveguide wavelength of center frequency point of the array antenna, and the M is whole more than or equal to 0
Number；So that the feeding network of array antenna works in standing wave state.
In a kind of possible design, the radiation patch is square, and square radiation patch structure is simple, so that
The directionality of antenna is more preferable.
In a kind of possible design, the spacing in N number of radiation patch between each adjacent two radiation patch is equal to
0.8 to 1.2 times of the corresponding waveguide wavelength of the center frequency point of the array antenna, so that array antenna is in vertical direction
N number of radiating element realize with mutually feed.
In a kind of possible design, the groove is inclined groove.
In a kind of possible design, the gradient of the groove is 45 degree.
In a kind of possible design, it is provided on the second medium plate and communicates with two rows of plated-through holes
Hole, to further increase bandwidth.
In a kind of possible design, the array antenna further include: be located at the first medium plate and described second and be situated between
Third dielectric-slab between scutum；
The third dielectric-slab is for bonding the first medium plate and the second medium plate.
In a kind of possible design, metal matched column is provided with beside the groove, to adjust belonging to the groove
The radiation efficiency of radiating element.
In a kind of possible design, the difference groove is different from the relative position between corresponding metal matched column,
So that array antenna institute radiation energy is distributed as the distribution of half taper.
In a kind of possible design, the N-2 in N number of groove in addition to the groove for being located at first medium board ends is a
Metal matched column is provided with beside groove, to adjust wave beam forming.
In a kind of possible design, the N-2 groove is divided into two groups of grooves, and every group of groove includes (N-2)/2
Groove, (N-2)/2 groove are the groove successively arranged；
(N-2)/2 groove is different from the relative position between corresponding metal matched column, so that array antenna
Institute's radiation energy is distributed as taper distribution.
In a kind of possible design, the array antenna is divided into first antenna submatrix and the second antenna submatrix；
The first antenna submatrix and the second antenna submatrix are rotational symmetry.
In a kind of possible design, the array antenna further include: the below the first medium plate the 4th is situated between
Scutum；The upper and lower surface of 4th dielectric-slab is metal covering, and the upper surface of the 4th dielectric-slab is the first medium
The lower surface of plate；
Part the 4th dielectric-slab close to feed port is the substrate for being provided with two rows of equally spaced plated-through holes
Integrated waveguide；
The middle position of the upper surface of 4th dielectric-slab offers transverse groove, plays energy being evenly distributed to
The effect of one dielectric-slab is gone here and there and is fed so that array antenna is realized so that the 4th dielectric-slab plays the role of parallelly feeding.
In a kind of possible design, the transverse groove is located at the upper surface of part the 4th dielectric-slab.
In a kind of possible design, the transverse groove is rectangular channel, convenient for coupling energy.
In a kind of possible design, metal matched column is provided with beside the transverse groove, for realizing impedance matching,
It adjusts function and divides ratio.
In a kind of possible design, the end of the feeding substrate integrated waveguide on the 4th dielectric-slab is provided with a row
Longitudinal short circuit metal column, to realize short circuit.
In a kind of possible design, the groove is longitudinal seam；
The array antenna further include: the 5th medium between the first medium plate and the second medium plate
Plate；The upper and lower surface of 5th dielectric-slab is metal covering, and the lower surface of the 5th dielectric-slab is the first medium plate
Upper surface；
5th dielectric-slab is the substrate integration wave-guide for being provided with two rows of equally spaced plated-through holes；
The upper surface of 5th dielectric-slab is etched with N number of right-angled intersection seam, and N number of radiation patch is correspondingly
Positioned at the top of N right-angled intersection seam.
In a kind of possible design, the right-angled intersection seam includes the lateral seam and longitudinal seam of right-angled intersection；
N number of longitudinal seam on 5th dielectric-slab is located at N number of longitudinal seam on the first medium plate correspondingly
Surface.
In a kind of possible design, N number of longitudinal seam on the 5th dielectric-slab is located on the 5th dielectric-slab
The middle position of feeding network, so that longitudinal seam is not involved in radiation when the feed port on the 5th dielectric-slab is fed.
In a kind of possible design, N number of longitudinal seam on the first medium plate is located on the first medium plate
The side of feeding network.
A kind of two rows of metals in possible design, on the 5th dielectric-slab between each adjacent two radiation patch
It is different to change the distance between through-hole, plays the role of adjusting energy distribution.
In a kind of possible design, the array antenna further include: be located at the 5th dielectric-slab and described second and be situated between
The 6th dielectric-slab between scutum；
6th dielectric-slab is for bonding the 5th dielectric-slab and the second medium plate.
In a kind of possible design, metal matched column is provided with beside the groove.
In a kind of possible design, the difference groove is different from the relative position between corresponding metal matched column.
In a kind of possible design, the spacing in N number of radiation patch between each adjacent two radiation patch is equal to
0.6 times of the corresponding waveguide wavelength of the center frequency point of the array antenna, to reduce minor lobe.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that one embodiment of the application provides；
Fig. 2 is the schematic top plan view for the array antenna that wave beam is integrated based on substrate that one embodiment of the application provides；
Fig. 3 is the schematic side view for the array antenna that wave beam is integrated based on substrate that one embodiment of the application provides；
The schematic diagram for the reflection coefficient curve that the array antenna that Fig. 4 is provided by the embodiments of the present application 4 × 1 emulates；
The array antenna 100 that Fig. 5 a is provided by the embodiments of the present application 4 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz frequency
The normalized radiation pattern of the vertical plane (face XOZ) of point；
The array antenna 100 that Fig. 5 b is provided by the embodiments of the present application 4 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz frequency
The normalized radiation pattern of the horizontal plane (face YOZ) of point；
The schematic diagram for the gain curve that the array antenna that Fig. 6 is provided by the embodiments of the present application 4 × 1 emulates；
Fig. 7 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
Fig. 8 is the schematic top plan view for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
Fig. 9 is the schematic side view for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
The schematic diagram for the reflection coefficient curve that the array antenna that Figure 10 is provided by the embodiments of the present application 8 × 1 emulates；
The array antenna 200 that Figure 11 a is provided by the embodiments of the present application 8 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz
The normalized radiation pattern of the vertical plane (face XOZ) of frequency point；
The array antenna 200 that Figure 11 b is provided by the embodiments of the present application 8 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz
The normalized radiation pattern of the horizontal plane (face YOZ) of frequency point；
The schematic diagram for the gain curve that the array antenna that Figure 12 is provided by the embodiments of the present application 8 × 1 emulates；
Figure 13 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
Figure 14 is the side schematic diagram for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
Figure 15 is the other side schematic diagram for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides；
Voltage standing wave ratio (the Voltage that the array antenna that Figure 16 is provided by the embodiments of the present application 4 × 1 emulates
Standing Wave Ratio, VSWR) curve schematic diagram；
Isolation of the Figure 17 between provided by the embodiments of the present application 4 × 1 array antenna middle port 1 and port 2 shows
It is intended to；
When the array antenna middle port 1 that Figure 18 a is provided by the embodiments of the present application 4 × 1 inputs, vertical plane (face XOZ)
Normalize antenna pattern；
When the array antenna middle port 1 that Figure 18 b is provided by the embodiments of the present application 4 × 1 inputs, horizontal plane (face YOZ)
Normalize antenna pattern；
When the array antenna middle port 1 that Figure 19 a is provided by the embodiments of the present application 4 × 1 inputs, vertical plane (face XOZ)
Cross-polarized schematic diagram；
When the array antenna middle port 1 that Figure 19 b is provided by the embodiments of the present application 4 × 1 inputs, horizontal plane (face YOZ)
Cross-polarized schematic diagram；
When the array antenna middle port 2 that Figure 20 a is provided by the embodiments of the present application 4 × 1 inputs, vertical plane (face XOZ)
Normalize antenna pattern；
When the array antenna middle port 2 that Figure 20 b is provided by the embodiments of the present application 4 × 1 inputs, horizontal plane (face YOZ)
Normalize antenna pattern；
When the array antenna middle port 2 that Figure 21 a is provided by the embodiments of the present application 4 × 1 inputs, vertical plane (face XOZ)
Cross polarization schematic diagram；
When the array antenna middle port 2 that Figure 21 b is provided by the embodiments of the present application 4 × 1 inputs, horizontal plane (face YOZ)
Cross polarization schematic diagram.
Specific embodiment
Patch array antenna provided by the embodiments of the present application based on substrate integration wave-guide can be applied to wireless communication and set
In standby, for receiving and dispatching and transmitting wireless communication signals, which is, for example, communication base station.
Fig. 1 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that one embodiment of the application provides, and Fig. 2 is
The schematic top plan view for the array antenna that wave beam is integrated based on substrate that one embodiment of the application provides；Fig. 3 is the implementation of the application one
The schematic side view for the array antenna that wave beam is integrated based on substrate that example provides；As shown in Figure 1-Figure 3, the present embodiment based on base
The array antenna 100 that piece integrates wave beam includes first medium plate 110 and second medium plate 120, and second medium plate 120 is superimposed upon the
The side of one dielectric-slab 110, wherein Fig. 1 is said so that second medium plate 120 is superimposed upon the top of first medium plate 110 as an example
It is bright, according to different visual angles, second medium plate 120 can be superimposed upon first medium plate 110 lower section or left or
Right, the present embodiment does not limit.
Wherein, the surface and opposite with the surface of the first medium plate 110 being superimposed with second medium plate 120
Another surface is metal layer, and the upper and lower surface of first medium plate 110 as shown in Figure 1 is metal layer, 110 edge of first medium plate
Longitudinal direction is provided with two rows of plated-through holes 111, and first medium plate 110 is made to form substrate integration wave-guide.Wherein, longitudinal direction
It is the longitudinal direction from the array antenna in terms of the feed port of array antenna when array antenna.Wherein, related substrate integration wave-guide
Description may refer to associated description in the prior art, details are not described herein again.
Wherein, N number of radiation patch 121 of array arrangement is placed on second medium plate 120, N is the integer greater than 1,
In, the specific value of N can be according to the horizontal beam width of the array antenna 100, vertical beam width and increasing in practical application
Beneficial demand is set, and Fig. 1 is by taking N is equal to 4 as an example.And N number of radiation patch is located between the two rows plated-through hole 111, i.e. N
When the position that a radiation patch 121 is located on second medium plate 120 is superimposed second medium plate 120 with first medium plate 110,
N number of radiation patch 121 is located between two rows of plated-through holes 111.And in first medium plate 110 with 120 phase of second medium plate
The surface (upper surface i.e. shown in FIG. 1) of superposition is etched with N number of groove 112.The quantity of groove 112 and the number of radiation patch 121
Measure identical, therefore, N number of radiation patch 121 is corresponded with N number of groove 112, in first medium plate 110 and second medium plate 120
When being superimposed, each radiation patch 121 is located at the top of the corresponding groove 112 of the radiation patch.
In the present embodiment, when above-mentioned first medium plate 110 and second medium plate 120 are superimposed, first medium plate
110 play the role of supporting feeding substrate integrated waveguide network.
Wherein, the array antenna 100 meets following at least one condition: at least one in N number of radiation patch 121
The size of radiation patch 121 is different, the size of at least one groove 112 is different in N number of groove 112, N number of radiation is pasted
Relative position in piece 121 between at least one radiation patch 121 and the corresponding groove 112 is different.
Wherein, the size of each radiation patch 121, the size of each groove 112, each radiation patch 121 with it is corresponding
Relative position specific size between the groove 112 can be wide according to the horizontal beam of the patch array antenna in practical application
Degree, vertical beam width and gain requirements are set.
In the present embodiment, N number of radiation patch is together in series by substrate integration wave-guide, realizes series feed.Above-mentioned array
Antenna 100 can be divided into N number of radiating element, since array antenna 100 meets following at least one condition: N number of radiation patch
The size of at least one radiation patch 121 is different in piece 121, in N number of groove 112 at least one groove 112 size not
Relative position in same, described N number of radiation patch 121 between at least one radiation patch 121 and the corresponding groove 112 is not
Together, so that N number of radiating element is not all of the same, therefore, array antenna can be increased by adjusting each radiating element
100 bandwidth.
Optionally, two rounds 122 are provided on second medium plate 120, this two round 122 is in first medium plate 110 and
It is communicated when second medium plate 120 is superimposed with two rows plated-through hole 111, to further increase bandwidth.
In some embodiments, the radiation patch 121 is square, and square radiation patch structure is simple, so that
The directionality of array antenna is more preferable.
In some embodiments, the spacing etc. in N number of radiation patch 121 between each adjacent two radiation patch 121
In 0.8 to 1.2 times of the corresponding waveguide wavelength of center frequency point of the array antenna 100.The present embodiment is in order to enable array day
The N number of radiating element of line 100 in vertical direction is realized with mutually feeding, and spacing (the i.e. battle array between radiation patch 121 can be set
Column orthogonal sets battle array distance) be about array antenna a center frequency point corresponding waveguide wavelength, for example, waveguide wavelength
0.8 to 1.2 times.
In some embodiments, the end of feeding substrate integrated waveguide is provided with a row in the first medium plate 110
Lateral short circuit metal column 113, wherein the transverse direction is from the array antenna in terms of the feed port of array antenna when array antenna
Transverse direction.Row's short circuit metal column is arranged in the end that substrate integrates wave beam feed in first medium plate 110 in the present embodiment
113, to realize short circuit.Optionally, the short circuit metal column 113 and radiation patch 121 nearest in the array antenna 100
The center frequency point that the distance between (one radiation patch of rightmost i.e. shown in FIG. 1) is equal to the array antenna 100 is corresponding
(M+1/4) of waveguide wavelength times, the M is the integer more than or equal to 0, can make the feeding network of array antenna 100 in this way
Work is in standing wave state.
In some embodiments, the side of N number of groove 112 is provided with metal matched column 114.It is shown in FIG. 1 for except
N-1 except closest to the groove 112 (groove 112 of rightmost as shown in Figure 1) of the end of feeding substrate integrated waveguide
The side of groove 112 is provided with metal matched column 114, and therefore, the present embodiment is provided with N-1 gold on first medium plate 110
Belong to matched column 114, wherein the side of groove 112 is provided with metal matched column 114, spoke belonging to the adjustable groove 112
Penetrate the energy that unit is radiated, i.e. radiation efficiency.Wherein, by adjusting between the corresponding metal matched column 114 of groove 112
Distance, the number of radiating element institute radiation energy belonging to the adjustable groove 112, the i.e. number of radiation efficiency.This reality
It applies example and passes through and will be provided with metal matched column beside the groove 112 in addition to the groove 112 close to feed end, by array day
The distribution of 100 radiation energies of line is designed as the distribution of half taper, to reduce minor lobe.In order to enable each radiating element obtains institute
The amplitude needed will also realize that constant amplitude is not fed, between the N-1 groove and corresponding metal matched column in the present embodiment
Relative position is different, to control the radiation efficiency of each radiating element respectively.Being four with radiation patch 121 shown in FIG. 1 is
The energy ratio of example, each radiating element radiation can be set to 4:3:2:1, correspondingly, from direction from left to right shown in FIG. 1: the
One radiating element, second radiating element and third radiating element are respectively necessary for 2/5,1/2 that radiation passes through its energy
With 2/3, as shown in Figure 1, the relative distance between groove and corresponding metal matched column in these three radiating elements are as follows: first
It is greater than being greater than in third radiating element in second radiating element in a radiating element.Due to the 4th radiating element
In be not provided with matched column, therefore, the 4th radiating element will be presented and all be radiate to its energy.
In some embodiments, the groove 112 is inclined groove, so that array antenna 100 realizes oblique line
Polarize work.Optionally, the gradient of the groove 112 is 45 degree, so that array antenna 100 realizes 45 ° of oblique line poles
Chemical industry is made.
In some embodiments, the array antenna 100 further include: be located at the first medium plate 110 and described second
Third dielectric-slab 130 between dielectric-slab 120.The third dielectric-slab 130 for bond the first medium plate 110 with it is described
Second medium plate 120, with the relative position fixed between first medium plate 110 and second medium plate 120.
Wherein, the dielectric material in first medium plate 110 and second medium plate 120 for example can be R04350, thickness example
For example 20mil；Dielectric material in third dielectric-slab 130 is, for example, R04450f, and thickness is, for example, 12mil；It needs to illustrate
It is that the present embodiment is not limited to this.
The present embodiment carries out simulating, verifying to the array antenna 100 of above-mentioned acquisition, by taking N is equal to 4 as an example, available Fig. 4-
Shown in Fig. 6, wherein the schematic diagram for the reflection coefficient curve that the array antenna that Fig. 4 is provided by the embodiments of the present application 4 × 1 emulates,
As shown in figure 4, the impedance bandwidth (| Γ | < -14dB) of array antenna 100 is 27.3-30.2GHz, relative impedances bandwidth is
10.1%.The array antenna 100 that Fig. 5 a is provided by the embodiments of the present application 4 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz frequency
The normalized radiation pattern of the vertical plane (face XOZ) of point, the array antenna 100 that Fig. 5 b is provided by the embodiments of the present application 4 × 1 exist
The normalized radiation pattern of the horizontal plane (face YOZ) of 27.5GHz, 28.5GHz and 29.5GHz frequency point, wherein array antenna 100
Vertical plane 3dB lobe width is kept for 20 ° or so, and width valve is maintained at -13dB hereinafter, the 3dB lobe width of horizontal plane is maintained at 80 °
Left and right.The schematic diagram for the gain curve that the array antenna that Fig. 6 is provided by the embodiments of the present application 4 × 1 emulates, as shown in fig. 6, battle array
The gain of array antenna 100 is maintained at 11dB or so in working frequency range 27.5-29.5GHz.
Optionally, in some embodiments, except the groove positioned at 110 both ends of first medium plate in N number of groove 112
The side of N-2 groove 112 except 112 (grooves 112 of Far Left and rightmost as shown in Figure 1) is provided with metal matching
Column 114.Therefore, the present embodiment is provided with N-2 metal matched column 114 on first medium plate 110, wherein in groove 112
Side is provided with metal matched column 114, the energy that radiating element belonging to the adjustable groove 112 is radiated, i.e. radiation effect
Rate.Wherein, the metal matched column 114 the distance between corresponding by adjusting groove 112, adjustable 112 institute of groove
The number of the radiating element institute radiation energy of category, the i.e. number of radiation efficiency.The present embodiment will be by that will remove 110 liang of first medium plate
It is provided with metal matched column beside groove 112 except two grooves 112 at end, by 100 radiation energies of array antenna
Distribution is designed as taper distribution, to reduce minor lobe.Optionally, real in order to enable each radiating element obtains required amplitude
Existing taper distribution is fed, and the N-2 groove 112 in the present embodiment is divided into two groups of grooves 112, and every group of groove 112 includes
(N-2)/2 groove 112, (N-2)/2 groove 112 is the groove 112 successively arranged；(N-2)/2 groove 112
Relative position between corresponding metal matched column 114 is different.In some embodiments, the array antenna 100 is divided into
First antenna submatrix and the second antenna submatrix；Wherein, the first antenna submatrix and the second antenna submatrix are rotational symmetry.
By taking N is equal to 8 as an example, then what first antenna submatrix and the second antenna submatrix all can be as shown in Figure 1 includes 4 radiation patch
Two can be included the array antenna rotation 180 degree in the array antenna of 4 radiation patch, then again by array antenna
Both ends docking can form array antenna as shown in this embodiment.
Fig. 7 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides, Fig. 8
For the schematic top plan view for the array antenna for integrating wave beam based on substrate that another embodiment of the application provides；Fig. 9 is that the application is another
The schematic side view for the array antenna that wave beam is integrated based on substrate that one embodiment provides；As shown in figs. 7 to 9, the present embodiment
The array antenna 200 for integrating wave beam based on substrate includes first medium plate 210, second medium plate 220 and the 4th dielectric-slab 230,
Wherein, the 4th dielectric-slab 230, first medium plate 210, second medium plate 220 are sequentially overlapped, and the 4th dielectric-slab 230 can be located at the
The lower section of one dielectric-slab 210.
Wherein, the surface and opposite with the surface of the first medium plate 210 being superimposed with second medium plate 220
Another surface is metal layer, and the upper and lower surface of first medium plate 210 as shown in Figure 7 is metal layer, 210 edge of first medium plate
Longitudinal direction is provided with two rows of plated-through holes 211, and first medium plate 210 is made to form substrate integration wave-guide.Wherein, longitudinal direction
It is the longitudinal direction from the array antenna in terms of the feed port of array antenna when array antenna.Wherein, related substrate integration wave-guide
Description may refer to associated description in the prior art, details are not described herein again.
Wherein, N number of radiation patch 221 of array arrangement is placed on second medium plate 220, N is the integer greater than 1,
In, the specific value of N can be according to the horizontal beam width of the array antenna 100, vertical beam width and increasing in practical application
Beneficial demand is set, and Fig. 7 is by taking N is equal to 8 as an example.And N number of radiation patch 221 is located between the two rows plated-through hole 211,
The position that i.e. N number of radiation patch 221 is located on second medium plate 220 is superimposed second medium plate 220 with first medium plate 210
When, N number of radiation patch 221 is located between two rows of plated-through holes 211.And in first medium plate 210 with second medium plate 220
Superimposed surface (upper surface i.e. shown in Fig. 7) is etched with N number of groove 212.The quantity of groove 212 and radiation patch 221
Quantity is identical, and therefore, N number of radiation patch 221 is corresponded with N number of groove 212, in first medium plate 210 and second medium plate
220 when being superimposed, and each radiation patch 221 is located at the top of the corresponding groove 212 of the radiation patch.In addition, second is situated between
Two rounds 222 are provided on scutum 220, this two round 222 is superimposed in first medium plate 210 and second medium plate 220
When communicated with two rows of plated-through holes 211.
In the present embodiment, when above-mentioned first medium plate 210 and second medium plate 220 are superimposed, first medium plate
210 play the role of supporting feeding substrate integrated waveguide network.
Wherein, the upper and lower surface of the 4th dielectric-slab 230 is metal covering, and the upper surface of the 4th dielectric-slab 230
For the lower surface of the first medium plate 210, i.e. the upper surface of the lower surface of first medium plate 210 and the 4th dielectric-slab 230 is total to
With same surface.Part the 4th dielectric-slab 230 close to feed port is provided with two rows of plated-through holes along the longitudinal direction
231, so that this 4th dielectric-slab 230 of part forms substrate integration wave-guide.Also, the upper table of the 4th dielectric-slab 230
Face offers transverse groove 232, and the 4th dielectric-slab 230 can transmit energy to first medium by being provided with the transverse groove 232
In plate 210 and since the transverse groove 232 is centrally located, also acts and energy is evenly distributed to first medium plate 210
Effect.Therefore, the 4th dielectric-slab 230 is function separation structure, plays the role of parallelly feeding.Optionally, transverse groove 232
In the 4th dielectric-slab 230 of part for substrate integration wave-guide.
Wherein, except (as shown in Figure 7 is most left for the groove 212 positioned at 210 both ends of first medium plate in N number of groove 212
The groove 212 on side and rightmost) except the side of N-2 groove 212 be provided with metal matched column 213.Therefore, the present embodiment
N-2 metal matched column 213 is provided on first medium plate 210, wherein the side of groove 212 is provided with metal matching
Column 213, the energy that radiating element belonging to the adjustable groove 212 is radiated, i.e. radiation efficiency.Wherein, by adjusting ditch
Corresponding the distance between the metal matched column 213 of slot 212, radiating element belonging to the adjustable groove 212 are radiated
The number of energy, the i.e. number of radiation efficiency.The present embodiment by will except 210 both ends of first medium plate two grooves 212 it
It is provided with metal matched column beside outer groove 212, the distribution of 100 radiation energies of array antenna is designed as taper point
Cloth, to reduce minor lobe.Optionally, in order to enable each radiating element obtains required amplitude, taper distribution feed is realized, this
The N-2 groove 212 in embodiment is divided into two groups of grooves 212, and every group of groove 212 includes (N-2)/2 groove 212,
(N-2)/2 groove 212 is the groove 212 successively arranged；(N-2)/2 groove 212 is matched with corresponding metal
Relative position between column 213 is different.Such as shown in fig. 7, the 2-4 groove 212 is one group, and each ditch in this group
Relative position between slot 212 and metal matched column 213 is different；The 5-7 groove 212 is one group, and each in this group
Relative position between groove 212 and metal matched column 213 is different.Optionally, each groove 212 and gold in one group of groove 212
Belong to the relative position between matched column 213, and in another group of groove 212 between each groove 212 and metal matched column 213
Relative position is rotational symmetry.Such as: by taking N in Fig. 7 is equal to 8 as an example, the energy ratio that each radiating element radiates can be set to
1:2:3:4:4:3:2:1.Therefore, arbitrary wave beam forming may be implemented by control energy ratio in the present embodiment.
Wherein, the array antenna 200 meets following at least one condition: at least one in N number of radiation patch 221
The size of radiation patch 221 is different, the size of at least one groove 212 is different in N number of groove 212, N number of radiation is pasted
Relative position in piece 221 between at least one radiation patch 221 and the corresponding groove 212 is different.
Wherein, the size of each radiation patch 221, the size of each groove 212, each radiation patch 221 with it is corresponding
Relative position specific size between the groove 212 can be wide according to the horizontal beam of the patch array antenna in practical application
Degree, vertical beam width and gain requirements are set.
In the present embodiment, N number of radiation patch is together in series by the substrate integration wave-guide in first medium plate, realizes series connection feedback
Electricity.Above-mentioned array antenna 200 can be divided into N number of radiating element, since array antenna 200 meets following at least one item
Part: the size of at least one radiation patch 221 is different in N number of radiation patch 221, at least one in N number of groove 212
The size of groove 212 is different, at least one radiation patch 221 and the corresponding groove 212 in N number of radiation patch 221
Between relative position it is different so that N number of radiating element be not all of it is the same, therefore, can be by adjusting each radiating element
To increase the bandwidth of array antenna 200, and transverse groove is offered in the 4th dielectric-slab for including substrate integration wave-guide, with reality
Now energy is fed into first medium plate from the 4th dielectric-slab, to realize parallelly feeding；To realize that series and parallel is presented jointly
Electricity.In addition, arbitrary wave beam forming can be realized by adjusting the relative position between metal matched column 213 and groove 212.
In some embodiments, the array antenna 200 further include: be located at the first medium plate 210 and described second
Third dielectric-slab 240 between dielectric-slab 220.The third dielectric-slab 240 for bond the first medium plate 210 with it is described
Second medium plate 220, with the relative position fixed between first medium plate 210 and second medium plate 220.
In some embodiments, which is rectangular channel, convenient for coupling energy.
In some embodiments, the side of the transverse groove 232 is provided with metal matched column 233, for realizing impedance matching,
It adjusts function and divides ratio, that is, adjust the energy proportion at 210 both ends of first medium plate.
In some embodiments, the end of the feeding substrate integrated waveguide on the 4th dielectric-slab 230 is provided with a row
Longitudinal short circuit metal column 234, to realize short circuit.Substrate integration wave-guide on 4th dielectric-slab 230 is above-mentioned part
Four dielectric-slabs 230.
Wherein, the dielectric material in first medium plate 210, second medium plate 220 and the 4th dielectric-slab 230 for example can be
R04350, thickness are, for example, 20mil；Dielectric material in third dielectric-slab 240 is, for example, R04450f, and thickness is, for example,
12mil.It should be noted that the present embodiment is not limited to this.
In some embodiments, the radiation patch 221 is square.
In some embodiments, the spacing etc. in N number of radiation patch 221 between each adjacent two radiation patch 221
In 0.8 to 1.2 times of the corresponding waveguide wavelength of center frequency point of the array antenna 200.The present embodiment is in order to enable array day
The N number of radiating element of line 200 in vertical direction is realized with mutually feeding, and spacing (the i.e. battle array between radiation patch 221 can be set
Column orthogonal sets battle array distance) be about array antenna a center frequency point corresponding waveguide wavelength, for example, waveguide wavelength
0.8 to 1.2 times.
In some embodiments, the end of feeding substrate integrated waveguide is provided with a row in the first medium plate 210
Lateral short circuit metal column 214, wherein the transverse direction is from the array antenna in terms of the feed port of array antenna when array antenna
Transverse direction.Row's short circuit metal column is arranged in the end that substrate integrates wave beam feed in first medium plate 210 in the present embodiment
214, to realize short circuit.Optionally, the short circuit metal column 214 and radiation patch 221 nearest in the array antenna 200
The center frequency point that the distance between (one radiation patch of rightmost i.e. shown in Fig. 7) is equal to the array antenna 200 is corresponding
(M+1/4) of waveguide wavelength times, the M is the integer more than or equal to 0, can make the feeding network of array antenna 200 in this way
Work is in standing wave state.
In some embodiments, the groove 212 is inclined groove, so that array antenna 200 realizes oblique line
Polarize work.Optionally, the gradient of the groove 212 is 45 degree, so that array antenna 200 realizes 45 ° of oblique line poles
Chemical industry is made.
Wherein it is possible to be that an array antenna 100 shown in FIG. 1 is carried out rotation 180 degree, then with another array day
After line 100 docks, parallelly feeding layer (i.e. above-mentioned 4th dielectric-slab) is added to the two array days in the bottom of first medium plate
Line 100 carries out reverse phase feed, and the array antenna 200 of series and parallel mixing feed can be realized.Optionally, in order to realize antenna side
To having a down dip for figure, the size of spacing between adjustable antenna both sides array radiation patch, the present embodiment is in order to realize under 3 °
Incline, by array antenna, spacing increases between the array radiation patch of input terminal side, the array radiation of the opposite other side
Spacing reduces between patch.
The present embodiment carries out simulating, verifying to the array antenna 200 of above-mentioned acquisition, by taking N is equal to 8 as an example, available figure
Shown in 10- Figure 12, wherein the reflection coefficient curve that the array antenna that Figure 10 is provided by the embodiments of the present application 8 × 1 emulates is shown
It is intended to, as shown in Figure 10, the impedance bandwidth of array antenna 200 (| Г | < -14dB) it is 26.5-30.3GHz, relative bandwidth is
13.2%.The array antenna 200 that Figure 11 a is provided by the embodiments of the present application 8 × 1 is in 27.5GHz, 28.5GHz and 29.5GHz frequency
The normalized radiation pattern of the vertical plane (face XOZ) of point, the array antenna 200 that Figure 11 b is provided by the embodiments of the present application 8 × 1 exist
The normalized radiation pattern of the horizontal plane (face YOZ) of 27.5GHz, 28.5GHz and 29.5GHz frequency point, wherein array antenna 200
Vertical plane radiation patterns maximum direction is directed toward 3 ° or so, that is, realizes 3 ° or so and have a down dip, minor lobe is all in -9dB hereinafter, array
For the vertical plane 3dB lobe width of antenna 200 at 12 ° or so, the 3dB lobe width of 200 horizontal plane of array antenna is maintained at 76 ° of left sides
It is right.The schematic diagram for the gain curve that the array antenna that Figure 12 is provided by the embodiments of the present application 8 × 1 emulates, as shown in figure 12, battle array
The gain of array antenna 200 is maintained at 14dB or so in working frequency range 27.5-29.5GHz.
Figure 13 is the perspective view of the explosion for the array antenna that wave beam is integrated based on substrate that another embodiment of the application provides, figure
The side schematic diagram of 14 array antennas that wave beam is integrated based on substrate provided for another embodiment of the application, Figure 15 is the application
The other side schematic diagram for the array antenna that wave beam is integrated based on substrate that another embodiment provides, as shown in Figure 13-Figure 15, this reality
The array antenna 300 for integrating wave beam based on substrate for applying example includes: first medium plate 310, second medium plate 320 and the 5th medium
Plate 330, wherein the 5th dielectric-slab 330 is superimposed upon between first medium plate 310 and second medium plate 320, second medium plate 320
Above the 5th dielectric-slab 330 and first medium plate 310.
Wherein, the first medium plate 310, the 5th dielectric-slab 330 upper and lower surface be metal layer, also, first medium
The upper surface of plate 310 and the lower surface of the 5th dielectric-slab 330 share same surface.First medium plate 310 is arranged along the longitudinal direction
There are two rows of plated-through holes 311, first medium plate 310 is made to form substrate integration wave-guide, the 5th dielectric-slab 330 is set along the longitudinal direction
Two rows of plated-through holes 331 are equipped with, the 5th dielectric-slab 330 is made to form substrate integration wave-guide.Wherein, longitudinal direction is from array day
The longitudinal direction of array antenna when the feed port of line sees array antenna.Wherein, the description in relation to substrate integration wave-guide can be with
Referring to associated description in the prior art, details are not described herein again.Wherein, one end of first medium plate 310 and the 5th dielectric-slab 330
All have feed port, wherein the feed port on first medium plate 310 is known as port 2, the feed on the 5th dielectric-slab 330
Port is known as port 1.
Wherein, N number of radiation patch 321 of array arrangement is placed on second medium plate 320, N is the integer greater than 1,
In, the specific value of N can be according to the horizontal beam width of the array antenna 300, vertical beam width and increasing in practical application
Beneficial demand is set, and Figure 13 is by taking N is equal to 4 as an example.And N number of radiation patch is located between the two rows plated-through hole 311, i.e.,
The position that N number of radiation patch 321 is located on second medium plate 320 make second medium plate 320 be superimposed upon first medium plate 310 with
When the 5th 330 top of dielectric-slab, N number of radiation patch 321 is located between two rows of plated-through holes 311, also is located at two rows of metallization
Between through-hole 331.And (the i.e. first medium plate 310 of the surface superimposed with the 5th dielectric-slab 330 in first medium plate 310
Upper surface) it is etched with N number of longitudinal seam 312.The quantity of longitudinal seam 312 is identical as the quantity of radiation patch 321, therefore, N number of radiation
Patch 321 and N number of longitudinal seam 312 correspond, and each radiation patch 321 is located at the corresponding longitudinal seam 312 of radiation patch 321
Top.
Wherein, the upper surface of the 5th dielectric-slab 330 is etched with N number of right-angled intersection seam 332, right-angled intersection seam 332
Quantity is identical as the quantity of radiation patch 321, and therefore, N number of radiation patch 321 is corresponded with N number of right-angled intersection seam 332,
When 5th dielectric-slab 330 is superimposed with second medium plate 320, it is corresponding that each radiation patch 321 is located at the radiation patch 321
Right-angled intersection seam 332 top.
First medium plate 310 in the present embodiment is a part of the SIW feeding network longitudinally fed, the 5th dielectric-slab
330 be a part of the SIW feeding network laterally fed, and second layer dielectric-slab 320 is for placing radiation patch 321.Wherein, on
State the feed for longitudinal seam 312 for SIW in first medium plate 310.
Wherein, the array antenna 300 meets following at least one condition: at least one in N number of radiation patch 321
The size of radiation patch 321 is different, the size of at least one longitudinal seam 312 is different in N number of longitudinal seam 312, N number of spoke
The relative position penetrated in patch 321 between at least one radiation patch 321 and the corresponding longitudinal seam 312 is different.
Wherein, the size of each radiation patch 321, the size of each longitudinal seam 312, each radiation patch 321 with it is corresponding
The longitudinal seam 312 between relative position specific size can be according to the horizontal beam of the patch array antenna in practical application
Width, vertical beam width and gain requirements are set.
In the present embodiment, above-mentioned array antenna 300 can be divided into N number of radiating element, since array antenna 300 meets
Following at least one condition: the size of at least one radiation patch 321 is different, described N number of vertical in N number of radiation patch 321
At least one radiation patch 321 in the size difference, N number of radiation patch 321 of at least one longitudinal seam 312 into seam 312
Relative position between the corresponding longitudinal seam 312 is different, so that N number of radiating element is not all of equally, to increase
The bandwidth of array antenna 300.Array antenna 300 in the present embodiment realizes two layers of feed, and laterally seam is fed for lateral,
Realize a kind of polarization (such as horizontal polarization), longitudinal seam feeds realization vertical polarization for longitudinal, realizes another polarization (as vertically
Polarization), therefore, so that array antenna can be realized simultaneously two kinds of polarization.The present embodiment also passes through cross crotch so that port 1 with
The isolation of port 2 is higher, is independent of each other between port 1 and port 2.Meanwhile in conjunction with SIW power division network, can design n ×
The array antenna of n, is widely used.
In some embodiments, the right-angled intersection seam 332 includes the lateral seam 332a and longitudinal seam 332b of right-angled intersection；
Also, N number of longitudinal seam 332b on the 5th dielectric-slab 330 is located at N number of on the first medium plate 310 correspondingly
The surface of longitudinal seam 312.Wherein, lateral feed of the seam 332a for SIW in the 5th dielectric-slab, longitudinal slot 332b is for the
The feed of SIW in one dielectric-slab.
In some embodiments, N number of longitudinal seam 332b on the 5th dielectric-slab 330 is located at the 5th dielectric-slab
The middle position of feeding network on 330, so that longitudinal seam 332b is not involved in radiation when port 1 is fed.
In some embodiments, N number of longitudinal seam 312 on the first medium plate 310 is located at the first medium plate 310
On feeding network side, as shown in figure 13, the right side on first medium plate 310.
In some embodiments, two rows of metals on the 5th dielectric-slab 330 between each adjacent two radiation patch
It is different to change the distance between through-hole 331, plays the role of adjusting energy distribution.Therefore, so that SIW in the 5th dielectric-slab
Width is variation, can be used for adjusting impedance matching, while controlling radiation energy and transmitting the ratio of energy.
In some embodiments, the array antenna 300 further include: be located at the 5th dielectric-slab 330 and described second
The 6th dielectric-slab between dielectric-slab 320；6th dielectric-slab is situated between for bonding the 5th dielectric-slab 330 with described second
Scutum 320.
In some embodiments, the radiation patch 321 is micro-strip paster antenna, is as shown in figure 13 radiation patch 321
For 2 × 2 Square Microstrip Patch Antenna, but the present embodiment is not limited to this.
In some embodiments, the spacing etc. in N number of radiation patch 321 between each adjacent two radiation patch 321
In 0.6 times of the corresponding waveguide wavelength of center frequency point of the array antenna 300, to reduce minor lobe.
In some embodiments, the end of feeding substrate integrated waveguide is provided with a row in the first medium plate 310
Lateral short circuit metal column 313, wherein the transverse direction is from the array antenna in terms of the feed port of array antenna when array antenna
Transverse direction.Row's short circuit metal column is arranged in the end that substrate integrates wave beam feed in first medium plate 310 in the present embodiment
313, to realize short circuit.Optionally, the short circuit metal column 313 and radiation patch 321 nearest in the array antenna 300
The center frequency point that the distance between (i.e. one radiation patch of rightmost shown in Figure 13) is equal to the array antenna 300 is corresponding
(M+1/4) of waveguide wavelength times, the M is the integer more than or equal to 0, array antenna 300 can be made longitudinally to feed in this way
Feeding network works in standing wave state.
In some embodiments, the end of feeding substrate integrated waveguide is provided with a row in the 5th dielectric-slab 330
Lateral short circuit metal column 333.Wherein, which is from the array antenna in terms of the feed port of array antenna when array antenna
Transverse direction.Row's short circuit metal column is arranged in the end that substrate integrates wave beam feed in the 5th dielectric-slab 330 in the present embodiment
333, to realize short circuit.Optionally, the short circuit metal column 333 and radiation patch 321 nearest in the array antenna 300
The center frequency point that the distance between (i.e. one radiation patch of rightmost shown in Figure 13) is equal to the array antenna 300 is corresponding
(M+1/2) of waveguide wavelength times, the M is the integer more than or equal to 0, array antenna 300 can be made laterally to feed in this way
Feeding network works in standing wave state.
In some embodiments, the side for stitching 312 in N number of longitudinal seam 312 longitudinally in each is provided with metal matched column
314.Therefore, the present embodiment is provided with N number of metal matched column 314 on first medium plate 310, wherein on the side of longitudinal seam 312
While it is provided with metal matched column 314, adjustable impedance matching, while controlling radiation energy and transmitting the ratio of energy, that is, it adjusts
The energy that radiating element belonging to the whole longitudinal seam 312 is radiated, i.e. radiation efficiency.Wherein, by adjusting longitudinal seam 312 and its
The distance between corresponding metal matched column 314, radiating element institute radiation energy belonging to the adjustable longitudinal seam 312 it is more
It is few, i.e., radiation efficiency number.For the radiation patch 321 shown in Figure 13 is four, the energy of each radiating element radiation
2:3:3:2 can be set to than the energy ratio that one each unit of embodiment radiates in Figure 13 can be set to.Therefore, correspondingly, from shown in Figure 13
Direction from left to right: it is logical that first radiating element, second radiating element and third radiating element are respectively necessary for radiation
1/5,3/8 and the 3/5 of its energy is crossed, and the 4th radiating element needs for feedback all to radiate to its energy.
The present embodiment carries out simulating, verifying to the array antenna 300 of above-mentioned acquisition, by taking N is equal to 4 as an example, available figure
Shown in 16- Figure 21 b, wherein the signal for the VSWR curve that the array antenna that Figure 16 is provided by the embodiments of the present application 4 × 1 emulates
Figure, as shown in figure 16, the impedance bandwidth (VSWR≤2) of array antenna 300 are 38.3-43.5GHz；Figure 17 is the application implementation
The schematic diagram of isolation between 4 × 1 array antenna middle port 1 that example provides and port 2, as shown in figure 17, two-port
Isolation is below -40dB.Other parameters simulation result is referring to shown in Figure 18 a- Figure 21 b, wherein Figure 18 a is that the application is real
When applying 4 × 1 array antenna middle port 1 input of example offer, the normalization antenna pattern of vertical plane (face XOZ), Figure 18 b is
When provided by the embodiments of the present application 4 × 1 array antenna middle port 1 inputs, the normalization radiation direction of horizontal plane (face YOZ)
Figure, when the array antenna middle port 1 that Figure 19 a is provided by the embodiments of the present application 4 × 1 inputs, the cross-pole of vertical plane (face XOZ)
The schematic diagram of change, when the array antenna middle port 1 that Figure 19 b is provided by the embodiments of the present application 4 × 1 inputs, horizontal plane (face YOZ)
Cross-polarized schematic diagram, Figure 20 a be provided by the embodiments of the present application 4 × 1 array antenna middle port 2 input when, vertically
The normalization antenna pattern in face (face XOZ), the array antenna middle port 2 that Figure 20 b is provided by the embodiments of the present application 4 × 1 are defeated
It is fashionable, the normalization antenna pattern of horizontal plane (face YOZ), the array antenna that Figure 21 a is provided by the embodiments of the present application 4 × 1
When middle port 2 inputs, the cross polarization schematic diagram of vertical plane (face XOZ), the battle array that Figure 21 b is provided by the embodiments of the present application 4 × 1
When array antenna middle port 2 inputs, the cross polarization schematic diagram of horizontal plane (face YOZ), referring specifically to as shown in the figure.
Claims (28)
1. a kind of array antenna based on substrate integration wave-guide characterized by comprising
First medium plate and second medium plate, the second medium plate are located at the top of the first medium plate；
The upper and lower surface of the first medium plate is metal layer, and the first medium plate is to be provided with two rows of metals along the longitudinal direction
Change the substrate integration wave-guide of through-hole；
N number of radiation patch of array arrangement is placed on the second medium plate, the N is the integer greater than 1；N number of spoke
It penetrates patch to be located between two rows of plated-through holes, and the upper surface of the first medium plate is etched with N number of groove, and described
N number of radiation patch is located at the top of N number of groove correspondingly；
Wherein, the array antenna meets following at least one condition: at least one radiation patch in N number of radiation patch
At least one radiation patch in the size difference, N number of radiation patch of at least one groove in size difference, N number of groove
Relative position between piece and the corresponding groove is different.
2. array antenna according to claim 1, which is characterized in that substrate integration wave-guide is presented in the first medium plate
The end of electricity is provided with the short circuit metal column of row transverse direction.
3. array antenna according to claim 2, which is characterized in that in the short circuit metal column and the array antenna most
The distance between close radiation patch is equal to (M+1/4) times of the corresponding waveguide wavelength of center frequency point of the array antenna, institute
Stating M is the integer more than or equal to 0.
4. array antenna according to claim 1 to 3, which is characterized in that the radiation patch is square.
5. array antenna according to any one of claims 1-4, which is characterized in that every phase in N number of radiation patch
Spacing between adjacent two radiation patch is equal to 0.8 to 1.2 times of the corresponding waveguide wavelength of center frequency point of the array antenna.
6. array antenna described in -5 any one according to claim 1, which is characterized in that the array antenna further include: position
Third dielectric-slab between the first medium plate and the second medium plate；
The third dielectric-slab is for bonding the first medium plate and the second medium plate.
7. array antenna described in -6 any one according to claim 1, which is characterized in that the groove is inclined groove.
8. array antenna according to claim 7, which is characterized in that the gradient of the groove is 45 degree.
9. array antenna according to any one of claims 1 to 8, which is characterized in that be provided on the second medium plate
The hole communicated with two rows of plated-through holes.
10. array antenna described in -9 any one according to claim 1, which is characterized in that be provided with beside the groove
Metal matched column.
11. array antenna according to claim 10, which is characterized in that difference grooves and the corresponding metal matched column
Between relative position it is different.
12. array antenna described in -9 any one according to claim 1, which is characterized in that except being located at the in N number of groove
Metal matched column is provided with beside N-2 groove except the groove of one medium board ends.
13. array antenna according to claim 12, which is characterized in that the N-2 groove is divided into two groups of grooves, often
Group groove includes (N-2)/2 groove, and (N-2)/2 groove is the groove successively arranged；
(N-2)/2 groove is different from the relative position between corresponding metal matched column.
14. array antenna according to claim 12 or 13, which is characterized in that the array antenna is divided into first antenna
Submatrix and the second antenna submatrix；
The first antenna submatrix and the second antenna submatrix are rotational symmetry.
15. array antenna described in 2-14 any one according to claim 1, which is characterized in that the array antenna further include:
The 4th dielectric-slab below the first medium plate；The upper and lower surface of 4th dielectric-slab is metal covering, and described the
The upper surface of four dielectric-slabs is the lower surface of the first medium plate；
Part the 4th dielectric-slab close to feed port be provided with two rows of equally spaced plated-through holes substrate it is integrated
Waveguide；
The middle position of the upper surface of 4th dielectric-slab offers transverse groove.
16. array antenna according to claim 15, which is characterized in that the transverse groove is located at part the 4th medium
The upper surface of plate.
17. array antenna according to claim 15 or 16, which is characterized in that the transverse groove is rectangular channel.
18. array antenna described in 5-17 any one according to claim 1, which is characterized in that set beside the transverse groove
It is equipped with metal matched column.
19. array antenna described in 5-18 any one according to claim 1, which is characterized in that on the 4th dielectric-slab
The end of feeding substrate integrated waveguide is provided with the short circuit metal column of row longitudinal direction.
20. array antenna according to any one of claims 1-4, which is characterized in that the groove is longitudinal seam；
The array antenna further include: the 5th dielectric-slab between the first medium plate and the second medium plate；Institute
The upper and lower surface for stating the 5th dielectric-slab is metal covering, and the lower surface of the 5th dielectric-slab is the upper table of the first medium plate
Face；
5th dielectric-slab is the substrate integration wave-guide for being provided with two rows of plated-through holes；
The upper surface of 5th dielectric-slab is etched with N number of right-angled intersection seam, and N number of radiation patch is located at correspondingly
The top of the N right-angled intersection seam.
21. array antenna according to claim 20, which is characterized in that the right-angled intersection seam includes the cross of right-angled intersection
To seam and longitudinal seam；
N number of longitudinal seam on 5th dielectric-slab is being located at N number of longitudinal seam on the first medium plate just correspondingly
Top.
22. array antenna according to claim 21, which is characterized in that N number of longitudinal seam position on the 5th dielectric-slab
In the middle position of the feeding network on the 5th dielectric-slab.
23. array antenna according to claim 22, which is characterized in that N number of longitudinal seam position on the first medium plate
In the side of the feeding network on the first medium plate.
24. according to array antenna described in claim 20-23 any one, which is characterized in that the 5th dielectric-slab is upper
The distance between two rows of plated-through holes between each adjacent two radiation patch are different.
25. according to array antenna described in claim 20-24 any one, which is characterized in that the array antenna further include:
The 6th dielectric-slab between the 5th dielectric-slab and the second medium plate；
6th dielectric-slab is for bonding the 5th dielectric-slab and the second medium plate.
26. according to array antenna described in claim 20-25 any one, which is characterized in that be provided with beside the groove
Metal matched column.
27. array antenna according to claim 26, which is characterized in that difference grooves and the corresponding metal matched column
Between relative position it is different.
28. according to array antenna described in claim 20-27 any one, which is characterized in that every in N number of radiation patch
Spacing between two neighboring radiation patch is equal to 0.6 times of the corresponding waveguide wavelength of center frequency point of the array antenna.
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| WO2021208901A1 (en) * | 2020-04-14 | 2021-10-21 | 华为技术有限公司 | Series-fed antenna, communication device, and method for manufacturing series-fed antenna |
| WO2023062910A1 (en) * | 2021-10-13 | 2023-04-20 | Sony Semiconductor Solutions Corporation | Distance measuring device |
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| WO2023062910A1 (en) * | 2021-10-13 | 2023-04-20 | Sony Semiconductor Solutions Corporation | Distance measuring device |
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