CN107275776A - A kind of SIW gaps crossfeed array antenna system - Google Patents
A kind of SIW gaps crossfeed array antenna system Download PDFInfo
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- CN107275776A CN107275776A CN201710525515.7A CN201710525515A CN107275776A CN 107275776 A CN107275776 A CN 107275776A CN 201710525515 A CN201710525515 A CN 201710525515A CN 107275776 A CN107275776 A CN 107275776A
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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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
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- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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Abstract
The invention belongs to antenna technical field, in particular relate to a kind of SIW gaps crossfeed array antenna system, it includes transmitting antenna and reception antenna, catoptric arrangement is provided between the transmitting antenna and reception antenna, the transmitting antenna is identical with the structure of reception antenna, dielectric-slab I where transmitting antenna and reception antenna, at dielectric-slab II where catoptric arrangement at grade, and transmitting antenna and reception antenna are symmetrically arranged at the both sides of catoptric arrangement, the transmitting antenna, reception antenna and catoptric arrangement are parallel to each other in the longitudinal direction, length of the length of the catoptric arrangement not less than transmitting antenna and reception antenna.The antenna system of the present invention can effectively suppress the diffraction of transmitting antenna and reception antenna operationally radiating surface ripple, improve the isolation between transmitting antenna and reception antenna, meet radar to the insulated degree requirement between dual-mode antenna.
Description
Technical field
The invention belongs to antenna technical field, a kind of SIW gaps crossfeed array antenna system is in particular related to.
Background technology
Using LTCC or PCB technologies, the guided wave structure of similar waveguide can be constructed with periodic metal throuth hole, so that
Waveguide is integrated in planar circuit intralamellar part, this structure is referred to as substrate integration wave-guide, abbreviation SIW (Substrate
Integrated Waveguide)。
Antenna occupies extremely important status as the transmitting and receiving apparatus of radio communication in radio communication.
In recent years, millimeter wave high band (60~110GHz) is increasingly paid close attention to by researcher, the antenna of traditional microstrip-type
Size is smaller, and the very thin of change is proposed higher requirement to machining accuracy and difficulty by microstrip line, while loss is big, power
Capacity is low；And although the antenna of waveguide type is with the high characteristic of low-loss, low interference, power capacity, be not easy to it is conformal,
The design difficulty of integration and high integration is big.
Meanwhile, radar is higher to the insulated degree requirement of dual-mode antenna, and the distance between dual-mode antenna has clearly again
In the case of limitation, how to improve the isolation between dual-mode antenna is also a problem.
The content of the invention
According to problems of the prior art, the invention provides a kind of SIW gaps crossfeed array antenna system, its is simultaneous
There is the antenna of microstrip-type and rectangle type, that is, have the advantages that filter with low insertion loss, low interference, power capacity height, size are small,
Enhance the integrated level between dual-mode antenna simultaneously and improve the isolation between dual-mode antenna.
The present invention uses following technical scheme：
A kind of SIW gaps crossfeed array antenna system, including transmitting antenna and reception antenna, the transmitting antenna and reception
Catoptric arrangement is provided between antenna.
It is preferred that, the transmitting antenna is identical with the structure of reception antenna, where transmitting antenna and reception antenna
At dielectric-slab II where dielectric-slab I, catoptric arrangement at grade, and transmitting antenna and reception antenna are symmetrically arranged at
The both sides of catoptric arrangement, the transmitting antenna, reception antenna and catoptric arrangement are parallel to each other in the longitudinal direction, the reflection
Length of the length of structure not less than transmitting antenna and reception antenna.
It is further preferred that the antenna stack of the transmitting antenna and reception antenna is respectively positioned on the front of dielectric-slab I, launch day
The metal ground layer of line and reception antenna is respectively positioned on the back side of dielectric-slab I；The transmitting antenna and reception antenna include multiple spokes
Penetrate gap, multiple plated-through holes I and a transmission port；In the same antenna, if the center line of antenna along its length is
Its axis, two adjacent radiating slots or so are alternately located at the both sides of axis, and two adjacent radiating slots are in axis
Centre distance on direction is equal, and the radiating slot positioned at axis both sides is equal apart from the distance of axis；It is many in the same antenna
Multiple radiating slots are surrounded half-surrounded by individual plated-through hole I, and multiple plated-through holes I are by two row plated-through holes I and one
Row metal through hole I is constituted, and two row plated-through holes I are each parallel to axis and are symmetricly set on the both sides of axis, a row metal
Change through hole I and be arranged on the one end of antenna axis direction away from transmission port, a line plated-through hole I is by two row plated-through holes I
It is connected into half-surrounded, the transmission port is located at the other end in antenna axis direction.
Still more preferably, the transmission port is arranged on transmitting antenna and remote a line metallization of reception antenna is logical
The one end in hole I, and the transmission port is arranged between two row plated-through holes I；The transmission port is Wedge structure, its
Front right angled triangle region is provided with the front of dielectric-slab I, back side right angled triangle area is provided with the back side of dielectric-slab I
Domain, a right-angle side in front right angled triangle region and a right-angle side in back side right angled triangle region with dielectric-slab I
Base coincident, and a right-angle side and a right angle in back side right angled triangle region in front right angled triangle region
While being overlapped on the front of dielectric-slab I along the projection of the thickness direction of dielectric-slab I, front right angled triangle region and back side right angle three
Angular domain is symmetrical on antenna axis；The front right angled triangle region and back side right angled triangle region is along dielectric-slab
The part that I thickness direction projection is intersected is in Openworks shape.
Still more preferably, the dielectric-slab I on the front and back, leads in multiple radiating slots, multiple metallization
Through covering Copper treatment on position outside hole I, the front right angled triangle region of transmission port and back side right angled triangle region；
The hole wall material matter of plated-through hole I is copper metal, and it connects the lying copper region domain at the positive lying copper region domain of dielectric-slab I and the back side
It is integral.
Still more preferably, the catoptric arrangement is the non-lying copper region domain of a rectangle, institute in the front of its dielectric-slab II
State and multiple metal patches are evenly provided with non-lying copper region domain, multiple metal patches are in rectangular, and each metal patch is provided with
Through the plated-through hole II of metal patch and dielectric-slab II, the back side of dielectric-slab II is on the position outside plated-through hole II
Through covering Copper treatment.
Still more preferably, one length of multiple metal patches formation is not less than transmitting antenna and reception antenna
Spacing between the rectangular area of length, two adjacent metal patches is equal, and plated-through hole II is located at metal patch
Center；The material of the metal patch and the hole wall material matter of plated-through hole II are copper metal, and plated-through hole II is by gold
The lying copper region domain connection for belonging to paster and the back side of dielectric-slab II is integral.
Still more preferably, the dielectric-slab I where the transmitting antenna and reception antenna and Jie where catoptric arrangement
The integrated merging of scutum II is on one block of dielectric-slab, back side lying copper region domain and the catoptric arrangement institute of the dielectric-slab I where transmitting antenna
Dielectric-slab II back side lying copper region domain between, the back side lying copper region domain of dielectric-slab I where reception antenna and catoptric arrangement
The non-lying copper region domain of strip that a length is not less than catoptric arrangement is respectively provided between the back side lying copper region domain of the dielectric-slab II at place.
Still more preferably, the dielectric-slab I and dielectric-slab II use the sheet materials of Rogers 3003, its dielectric constant
For 3.0, thickness is 0.254mm.
The beneficial effects of the present invention are：
1) antenna system of the invention adds catoptric arrangement between the transmit antennas and the receive antennas, can effectively press down
The diffraction of transmitting antenna and reception antenna processed operationally radiating surface ripple, improve between transmitting antenna and reception antenna every
From degree, radar is met to the insulated degree requirement between dual-mode antenna.
2) antenna system of the invention employs the form of SIW gaps crossfeed array antenna, has micro-strip and rectangle type concurrently
The advantage of antenna, that is, have the advantages that filter with low insertion loss, low interference, power capacity is high, size is small, it is conformal to be easy to and integrated level is high；By
In SIW gaps, crossfeed array antenna volume is smaller in itself, adds transmitting antenna and reception antenna is integrated on same dielectric-slab,
The integrated level between dual-mode antenna is enhanced, the radar application needs of millimeter wave high band are met.
3) transmission port in transmitting antenna and reception antenna of the invention is provided with the Wedge structure for being used for connecting waveguide,
Wedge structure is right angled triangle in the region of the front and back of dielectric-slab, and two right angled triangles are in symmetry shape, phase
For traditional fin line structure, Insertion Loss and reflectance factor can realize good impedance matching, but Wedge structure is easy to process,
Reduce difficulty of processing.
Brief description of the drawings
The first structural representation in Fig. 1 a faces where the antenna stack of antenna in the antenna system of the embodiment of the present invention.
Second of structural representation in Fig. 1 b faces where the antenna stack of antenna in the antenna system of the embodiment of the present invention.
The first structural representation in Fig. 2 a faces where the metal ground layer of antenna in the antenna system of the embodiment of the present invention.
Second of structural representation in Fig. 2 b faces where the metal ground layer of antenna in the antenna system of the embodiment of the present invention.
Fig. 3 is a row SIW gaps crossfeed array antenna voltage standing wave ratio test chart in the embodiment of the present invention.
Fig. 4 is a row SIW gap crossfeed array antenna azimuth planes and the gain test figure in pitching face in the embodiment of the present invention.
Fig. 5 is testing performance index figure when transmission port in the embodiment of the present invention uses Wedge structure.
Fig. 6 is testing performance index figure when transmission port in the embodiment of the present invention uses traditional fin line structure.
Fig. 7 is the schematic diagram that transmission port in the embodiment of the present invention uses Wedge structure.
Fig. 8 is the schematic diagram that transmission port in the embodiment of the present invention uses traditional fin line structure.
Fig. 9 is the isolation degree test figure of the whole system of the embodiment of the present invention.
Figure 10 is isolation degree test figure when not setting catoptric arrangement in the embodiment of the present invention in the middle of dual-mode antenna system.
Reference：1- transmitting antennas, 11- radiating slots, 12- plated-through holes I, 13- transmission ports, 2- receives day
Line, 3- catoptric arrangements, 31- metal patches, 32- plated-through holes II, 4- dielectric-slabs I, 5- dielectric-slabs II, the non-lying copper region of 6- strips
Domain.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Fig. 1 a, Fig. 1 b, Fig. 2 a and Fig. 2 b, a kind of SIW gaps crossfeed array antenna system, including transmitting antenna 1
With reception antenna 2, catoptric arrangement 3 is provided between the transmitting antenna 1 and reception antenna 2.
The transmitting antenna 1 is identical with the structure of reception antenna 2, the medium where transmitting antenna 1 and reception antenna 2
At dielectric-slab II 5 where plate I 4, catoptric arrangement 3 at grade, and transmitting antenna 1 and reception antenna 2 are arranged symmetrically
In the both sides of catoptric arrangement 3, the transmitting antenna 1, reception antenna 2 and catoptric arrangement 3 are parallel to each other in the longitudinal direction, institute
State length of the length not less than transmitting antenna 1 and reception antenna 2 of catoptric arrangement 3.
The antenna stack of the transmitting antenna 1 and reception antenna 2 is respectively positioned on the front of dielectric-slab I 4, transmitting antenna 1 and reception
The metal ground layer of antenna 2 is respectively positioned on the back side of dielectric-slab I 4；The transmitting antenna 1 and reception antenna 2 include multiple radiating slots
Gap 11, multiple plated-through holes I 12 and a transmission port 13；In the same antenna, if the center line of antenna along its length
For its axis, adjacent two radiating slots 11 or so are alternately located at the both sides of axis, two adjacent radiating slots 11
Centre distance in the axial direction is equal, and the radiating slot 11 positioned at axis both sides is equal apart from the distance of axis；It is same
In antenna, multiple radiating slots 11 are surrounded half-surrounded by multiple plated-through holes I 12, and multiple plated-through holes I 12 are by two row
Plated-through hole I 12 and a line plated-through hole I 12 are constituted, and two row plated-through holes I 12 are each parallel to axis and are symmetrical arranged
In the both sides of axis, a line plated-through hole I 12 is arranged on the one end of antenna axis direction away from transmission port 13, a row metal
Change through hole I 12 and two row plated-through holes I 12 are connected into half-surrounded, the transmission port 13 is located at the another of antenna axis direction
One end.
As shown in fig. 7, the transmission port 13 is arranged on transmitting antenna 1 and remote a line metallization of reception antenna 2 is logical
The one end in hole I 12, and the transmission port 13 is arranged between two row plated-through holes I 12；The transmission port 13 is point
Structure is split, it is provided with front right angled triangle region in the front of dielectric-slab I 4, and the back side of dielectric-slab I 4 is provided with the back side
Right angled triangle region, a right-angle side in front right angled triangle region and a right-angle side in back side right angled triangle region
With the base coincident of dielectric-slab I 4, and a right-angle side and the back side right angled triangle area in front right angled triangle region
One right-angle side in domain is overlapped on the front of dielectric-slab I 4 along the projection of the thickness direction of dielectric-slab I 4, front right angled triangle area
Domain and back side right angled triangle region are symmetrical on antenna axis；The front right angled triangle region and back side right angled triangle
It is in Openworks shape that region projects intersecting part in the thickness direction along dielectric-slab I 4；Solid line represents that dielectric-slab I 4 is positive in Fig. 7
The schematic diagram of Wedge structure, dotted line represents the schematic diagram of the Wedge structure at the back side of dielectric-slab 4.
The dielectric-slab I 4 on the front and back, in multiple radiating slots 11, multiple plated-through holes I 12, transmission end
Through covering Copper treatment on position outside the front right angled triangle region and back side right angled triangle region of mouth 13；Metallization is logical
The hole wall material matter in hole I 12 is copper metal, and it connects into the lying copper region domain in the positive lying copper region domain of dielectric-slab I 4 and the back side whole
Body.
The catoptric arrangement 3 is in the non-lying copper region domain of a rectangle, the non-lying copper region domain in the front of its dielectric-slab II 5
Multiple metal patches 31 are evenly provided with, multiple metal patches 31 are in rectangular, and each metal patch 31, which is provided with, runs through metal
The plated-through hole II 32 of paster 31 and dielectric-slab II 5, the back side of dielectric-slab II 5 is on the position outside plated-through hole II 32
Through covering Copper treatment.
One length of multiple formation of the metal patch 31 is not less than transmitting antenna 1 and the rectangle of the length of reception antenna 2
Spacing between region, two adjacent metal patches 31 is equal, and plated-through hole II 32 is located at the center of metal patch；
The material of the metal patch 31 and the hole wall material matter of plated-through hole II 32 are copper metal, and plated-through hole II 32 is by metal
The lying copper region domain connection at paster 31 and the back side of dielectric-slab II 5 is integral.
Dielectric-slab I 4 and the dielectric-slab II 5 at the place of catoptric arrangement 3 where the transmitting antenna 1 and reception antenna 2 is integrated
Merge on one block of dielectric-slab, back side lying copper region domain and the medium where catoptric arrangement 3 of the dielectric-slab I 4 where transmitting antenna 1
Where the back side lying copper region domain of dielectric-slab I 4 between the back side lying copper region domain of plate II 5, where reception antenna 2 and catoptric arrangement 3
Dielectric-slab II 5 back side lying copper region domain between be respectively provided with a length be not less than catoptric arrangement 3 the non-lying copper region domain 6 of strip；
The dielectric-slab 4 uses the sheet materials of Rogers 3003, and its dielectric constant is 3.0, and thickness is 0.254mm.
Embodiment：
In embodiments of the invention, using the SIW gaps crossfeed array antenna of 77GHz frequency range MIMO radar antenna-feedback systems as
Transmitting antenna 1 and reception antenna 2 in the present invention, as shown in Fig. 1 a and Fig. 2 a.Had a fling at below for concrete structure and correlative measurement
Further describe.
In Fig. 1 a and Fig. 2 a, SIW gaps crossfeed array antenna includes 16 radiating slots 11, wherein each adjacent radiation
The centre distance along antenna axis between gap 11 is 1.9mm, and the amplitude that 16 radiating slots 11 deviate antenna axis is pressed
Taylor's -25dB weight distributions, the diameter of multiple plated-through holes I 12 is 0.3mm, adjacent two plated-through holes I 12 it
Between center spacing be row between 0.5mm, two row plated-through holes I 12 away from for 1.65mm.
Metal patch 31 in the catoptric arrangement 3 of the embodiment of the present invention uses size for 0.8mm × 0.8mm square metal
Paster, a diameter of 0.2mm of plated-through hole II 32.
It is pointed out that the length of the rectangular area of the formation of metal patch 31 is not less than transmitting antenna 1 and reception
Dielectric-slab I 4 where the length of antenna 2, therefore transmitting antenna 1 and reception antenna 2 and the dielectric-slab where catoptric arrangement 3
When II 5 integrated merging are on one block of dielectric-slab, positive lying copper region domain and the catoptric arrangement 3 of the dielectric-slab I 4 where transmitting antenna 1
The positive lying copper region domain of dielectric-slab I 4 between the positive lying copper region domain of the dielectric-slab II 5 at place, where reception antenna 2 and reflection
Between the positive lying copper region domain of dielectric-slab II 5 where structure 3, it can be set in the two side ends of the length direction of catoptric arrangement 3
Lying copper region domain is put, by the positive lying copper region domain of the dielectric-slab I 4 where transmitting antenna 1 and reception antenna 2 and the place of catoptric arrangement 3
The positive lying copper region domain of dielectric-slab II 5 connect into an entirety, as shown in Figure 1a；The two of the length direction of catoptric arrangement 3
Side without lying copper region domain setting, i.e., the positive lying copper region domain of the dielectric-slab I 4 where transmitting antenna 1 and reception antenna 2 with
The positive lying copper region domain of dielectric-slab II 5 where catoptric arrangement 3 is off-state, as shown in Figure 1 b.Shown in Fig. 1 a and Fig. 1 b
Structure is satisfied by application claims.
The back side lying copper region domain of dielectric-slab I 4 where transmitting antenna 1 and the back side of the dielectric-slab II 5 where catoptric arrangement 3
Dielectric-slab II 5 where the back side lying copper region domain of dielectric-slab I 4 between lying copper region domain, where reception antenna 2 and catoptric arrangement 3
Back side lying copper region domain between be respectively provided with a length be not less than catoptric arrangement 3 the non-lying copper region domain 6 of strip；As shown in Figure 2 a,
The setting in the non-lying copper region domain 6 of strip is not longitudinally through dielectric-slab, now, the back of the body of the dielectric-slab II 5 where catoptric arrangement 3
Back side lying copper region domain and the dielectric-slab I 4 at reception antenna 2 place of the face lying copper region domain with the dielectric-slab I 4 where transmitting antenna 1
Back side lying copper region domain be connected；As shown in Figure 2 b, the non-lying copper region domain 6 of the strip is set to longitudinally through dielectric-slab, now,
Back side lying copper region of the back side lying copper region domain of dielectric-slab II 5 where catoptric arrangement 3 with the dielectric-slab I 4 where transmitting antenna 1
The back side lying copper region domain of dielectric-slab I 4 where domain and reception antenna 2 disconnects.Structure shown in Fig. 2 a and Fig. 2 b is satisfied by this hair
It is bright to require.
The row SIW gap crossfeed array antennas and the whole system of the embodiment of the present invention in Fig. 1 a and Fig. 2 a are entered respectively
Row test operation.
Test environment：Microwave Measurement And Adjustment room；
Test equipment：Vector network analyzer；
Voltage standing wave ratio to a row SIW gaps crossfeed array antenna is tested, and test result is as shown in figure 3, from Fig. 3
In as can be seen that in 76~77GHz band limits, standing wave is less than 1.65, realizes preferable impedance matching property.
Azimuth plane and pitching face gain of the one row SIW gap crossfeed array antennas in 76~77GHz of working frequency range are entered
Row test, test result are secondary as shown in figure 4, from fig. 4, it can be seen that the maximum gain of inventive antenna system is 14dB or so
Valve is less than 21dB, meets Antenna Design requirement.
Wedge structure (as shown in Figure 7) and biography is respectively adopted in transmission port 13 to a row SIW gaps crossfeed array antenna
Insertion Loss and port reflectance factor during fin line structure (as shown in Figure 8) of system are tested, test result as shown in Figure 5, Figure 6,
Fig. 5 is test chart when transmission port 13 uses Wedge structure, and Fig. 6 is transmission port 13 using survey during traditional fin line structure
Attempt, as can be known from Fig. 5 and Fig. 6, in 71~79GHz working frequency range, in the case of two kinds, the Insertion Loss of transmission port 13
0.45dB is each about, reflectance factor is respectively less than -20dB, realizes good matching properties and broadband character.
Therefore, transmission port 13 can realize good impedance matching using Wedge structure and traditional fin line structure, but
It is that Wedge structure is easy to process, reduces difficulty of processing.
Whole system to the embodiment of the present invention carries out isolation degree test, and as shown in Figure 7 and Figure 8, Fig. 7 is this to test result
The isolation degree test figure of the whole system of inventive embodiments, Fig. 8 is not add catoptric arrangement 3 between transmitting antenna 1 and reception antenna 2
Isolation degree test figure, can be drawn by Fig. 7 and Fig. 8 comparison, the He of transmitting antenna 1 of the whole system of the embodiment of the present invention
Isolation between reception antenna 2 is 62dB, and when not adding catoptric arrangement 3 between transmitting antenna 1 and reception antenna 2, launches day
Isolation between line 1 and reception antenna 2 is 22dB, it is seen then that the setting of catoptric arrangement 3, substantially increases transmitting antenna 1 and connects
The isolation between antenna 2 is received, higher receive-transmit isolation characteristic is realized.
In summary, antenna system of the invention adds catoptric arrangement 3, energy between transmitting antenna 1 and reception antenna 2
Enough effective diffractions for suppressing transmitting antenna 1 and reception antenna 2 operationally radiating surface ripple, improve transmitting antenna and reception
Isolation between antenna, meets radar to the insulated degree requirement between dual-mode antenna.
Claims (9)
1. a kind of SIW gaps crossfeed array antenna system, including transmitting antenna (1) and reception antenna (2), it is characterised in that：Institute
State and catoptric arrangement (3) is provided between transmitting antenna (1) and reception antenna (2).
2. a kind of SIW gaps crossfeed array antenna system according to claim 1, it is characterised in that：The transmitting antenna
(1) structure with reception antenna (2) is identical, dielectric-slab I (4), reflection where transmitting antenna (1) and reception antenna (2)
At grade, and transmitting antenna (1) and reception antenna (2) are symmetrically arranged at dielectric-slab II (5) place where structure (3)
The both sides of catoptric arrangement (3), the transmitting antenna (1), reception antenna (2) and catoptric arrangement (3) are mutual in the longitudinal direction
It is parallel, length of the length not less than transmitting antenna (1) and reception antenna (2) of the catoptric arrangement (3).
3. a kind of SIW gaps crossfeed array antenna system according to claim 2, it is characterised in that：The transmitting antenna
And the antenna stack of reception antenna (2) is respectively positioned on the metal in the front of dielectric-slab I (4), transmitting antenna (1) and reception antenna (2) (1)
Stratum is respectively positioned on the back side of dielectric-slab I (4)；The transmitting antenna (1) and reception antenna (2) include multiple radiating slots
(11), multiple plated-through holes I (12) and a transmission port (13)；In the same antenna, if antenna along its length in
Heart line is its axis, and adjacent two radiating slots (11) left and right is alternately located at the both sides of axis, two adjacent radiation
The centre distance of gap (11) in the axial direction is equal, and the radiating slot (11) positioned at axis both sides is equal apart from the distance of axis
It is equal；In the same antenna, multiple radiating slots (11) are surrounded half-surrounded, multiple metallization by multiple plated-through holes I (12)
Through hole I (12) is made up of two row plated-through holes I (12) and a line plated-through hole I (12), and two row plated-through holes I (12) are
Parallel to axis and the both sides of axis are symmetricly set on, a line plated-through hole I (12) is arranged on antenna axis direction away from biography
One end of defeated port (13), two row plated-through holes I (12) are connected into half-surrounded by a line plated-through hole I (12), described
Transmission port (13) is located at the other end in antenna axis direction.
4. a kind of SIW gaps crossfeed array antenna system according to claim 3, it is characterised in that：The transmission port
(13) one end of remote a line plated-through hole I (12) of transmitting antenna (1) and reception antenna (2), and the transmission are arranged on
Port (13) is arranged between two row plated-through holes I (12)；The transmission port (13) is Wedge structure, and it is in dielectric-slab
The front of I (4) is provided with front right angled triangle region, and back side right angled triangle area is provided with the back side of dielectric-slab I (4)
Domain, a right-angle side in front right angled triangle region and a right-angle side in back side right angled triangle region with dielectric-slab I
(4) base coincident, and a right-angle side in front right angled triangle region and one of back side right angled triangle region
Right-angle side on the front of dielectric-slab I (4) along dielectric-slab I (4) thickness direction projection overlap, front right angled triangle region and
Back side right angled triangle region is symmetrical on antenna axis；The front right angled triangle region and back side right angled triangle region
It is in Openworks shape to project intersecting part in the thickness direction along dielectric-slab I (4).
5. a kind of SIW gaps crossfeed array antenna system according to claim 4, it is characterised in that：The dielectric-slab I
(4) on the front and back, it is straight in the front of multiple radiating slots (11), multiple plated-through holes I (12), transmission port (13)
Through covering Copper treatment on position outside angle delta-shaped region and back side right angled triangle region；The hole of plated-through hole I (12)
Wall material matter is copper metal, and it is integral by the lying copper region domain connection at the positive lying copper region domain of dielectric-slab I (4) and the back side.
6. a kind of SIW gaps crossfeed array antenna system according to Claims 2 or 3 or 4 or 5, it is characterised in that：It is described
Catoptric arrangement (3) is equably to be set in the non-lying copper region domain of a rectangle, the non-lying copper region domain in the front of its dielectric-slab II (5)
There are multiple metal patches (31), multiple metal patches (31) are in rectangular, and each metal patch (31) is provided with through metal patch
The plated-through hole II (32) of piece (31) and dielectric-slab II (5), the back side of dielectric-slab II (5) is outside plated-through hole II (32)
Position on through covering Copper treatment.
7. a kind of SIW gaps crossfeed array antenna system according to claim 6, it is characterised in that：Multiple metals
Paster (31) one length of formation is not less than transmitting antenna (1) and the rectangular area of the length of reception antenna (2), and two adjacent
Spacing between metal patch (31) is equal, and plated-through hole II (32) is located at the center of metal patch；The metal patch
The material of piece (31) and the hole wall material matter of plated-through hole II (32) are copper metal, and plated-through hole II (32) is by metal patch
(31) and dielectric-slab II (5) back side lying copper region domain connection it is integral.
8. a kind of SIW gaps crossfeed array antenna system according to claim 7, it is characterised in that：The transmitting antenna
(1) and the dielectric-slab I (4) where reception antenna (2) with the dielectric-slab II (5) where catoptric arrangement (3) is integrated merges at one piece
On dielectric-slab, back side lying copper region domain and the dielectric-slab II where catoptric arrangement (3) of the dielectric-slab I (4) where transmitting antenna (1)
(5) back side lying copper region domain of the dielectric-slab I (4) between back side lying copper region domain, where reception antenna (2) and catoptric arrangement (3)
The strip that a length is respectively provided between the back side lying copper region domain of the dielectric-slab II (5) at place not less than catoptric arrangement (3) non-covers
Copper region (6).
9. a kind of SIW gaps crossfeed array antenna system according to claim 8, it is characterised in that：The dielectric-slab (4)
Using the sheet materials of Rogers 3003, its dielectric constant is 3.0, and thickness is 0.254mm.
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Application publication date: 20171020 |