CN109361074A - A kind of pyramid loudspeaker element antenna inhibiting array graing lobe - Google Patents
A kind of pyramid loudspeaker element antenna inhibiting array graing lobe Download PDFInfo
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- CN109361074A CN109361074A CN201811340232.6A CN201811340232A CN109361074A CN 109361074 A CN109361074 A CN 109361074A CN 201811340232 A CN201811340232 A CN 201811340232A CN 109361074 A CN109361074 A CN 109361074A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- 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
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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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
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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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of pyramid loudspeaker element antennas for inhibiting array graing lobe, comprising: at least two pyramid loudspeaker element antennas and combiner；At least two pyramid loudspeakers element antenna is arranged side by side, and at least two pyramid loudspeakers element antenna is connect with the combiner.At least two pyramid loudspeaker element antenna groups are combined into a pyramidal horn antenna with conventional caliber size by a kind of pyramidal horn antenna of the invention, and the hypotelorism between each pyramid loudspeaker element antenna can effectively inhibit the graing lobe of array aerial direction figure；And at least two compact cosine distribution mouth faces are capable of forming, keep the field distribution of Antenna aperture more uniform, to obtain bigger gain and beam efficiency.
Description
Technical field
The present invention relates to antenna technical field more particularly to a kind of pyramid loudspeaker element antennas for inhibiting array graing lobe.
Background technique
The wavelength of millimeter wave be located at microwave and it is infrared between, have certain penetration capacity, can be according to object scatter energy
The size discrimination of amount has the object of different physical attributes, and spatial resolution is higher, thus be widely used in telemetering remote sensing,
The civil and militaries imaging fields such as geographical meteorology, communications and transportation, health care, safety check security protection and electronic countermeasure, in recent years by
The extensive concern of domestic and international researcher is arrived.It can be realized in conjunction with pyramidal horn antenna in the application of millimeter wave, pyramid loudspeaker
Antenna is a kind of widely used microwave antenna, its radiation field is to be determined by the mouth face size of loudspeaker with antenna pattern
's.As shown in Figure 1, usually would operate in the two or more single of same frequency range for the application for being suitble to various occasions
Pyramidal horn antenna is arranged in aerial array.But it due to the limitation for the receiver manufacturing technology level being connect with aerial array, connects
The volume of receipts machine is larger, even if receiver is closely arranged, the arrangement spacing for also resulting in each Channel front end antenna is excessive, or even meeting
Greater than one times wavelength.According to aerial array theory, when element antenna array element spacing is greater than one times of wavelength, the direction of array antenna
To occur graing lobe in figure.
Domestic patent CN200720059470 discloses a kind of function dividing horn antenna and array, the function dividing horn antenna be
Heavy caliber electromagnetic horn mouth carries out one section in face of bell mouth surface and extends to form one section of rectangular waveguide or rectangular waveguide, then at one section
Directly add the mode of sheet metal that mouth face is divided into smaller Wave guide unit in rectangular waveguide, signal is by smaller spacing
What rectangle or square wave guide were radiated.But the sheet metal for dividing electric field needs individually processing, then carries out again with loudspeaker
Assembly, therefore biggish error can be introduced in millimere-wave band application, the unit amplitude phase unbalance after making segmentation.And due to day
Electric field amplitude in the electric field surface (face E) in line mouth face declines more violent from segmentation sheet metal to antenna outer wall direction, causes
Mouth face is uneven in electric field surface (face E).
Summary of the invention
The technology of the present invention solves the problems, such as: having overcome the deficiencies of the prior art and provide a kind of pyramid loudspeaker for inhibiting array graing lobe
Element antenna, to solve the problems, such as that existing horn antenna array image quality is poor.
One of the technology of the present invention solution, a kind of pyramid loudspeaker element antenna of the inhibition array graing lobe provided, comprising:
At least two pyramid loudspeaker element antennas and combiner；
At least two pyramid loudspeakers element antenna is arranged side by side, at least two pyramid loudspeakers element antenna and institute
State combiner connection.
At least two pyramid loudspeakers element antenna is arranged side by side along the face E of the pyramidal horn antenna.
The size of the feed port of the combiner is the WR-28 standard waveguide mouth size of Ka wave band.
The first Wedge structure, the direction of first Wedge structure and the feedback of the combiner are provided in the combiner
The polarization direction of electric port is vertical.
The pyramidal horn antenna includes the first component and second component being mutually fastened and connected；
The first component includes: the first groove and the second groove；The quantity of first groove and the pyramid loudspeaker
The quantity of element antenna is identical, and first groove is the inner cavity of the pyramid loudspeaker element antenna, and second groove is institute
State the inner cavity of combiner；First groove and the second groove communicate, and the two sides side wall of first groove is from described second
One end that groove communicates starts to expand to two sides and extend, and the bottom of first groove is from the one end communicated with second groove
Start to tilt down extension；
The second component includes: third groove and the 4th groove；The quantity of the third groove and the pyramid loudspeaker
The quantity of element antenna is identical, and the third groove is the inner cavity of the pyramid loudspeaker element antenna, and the 4th groove is institute
The inner cavity of combiner is stated, the third groove and the 4th groove communicate, and the two sides side wall of the third groove is from the described 4th
One end that groove communicates starts to expand to two sides and extend, and the bottom of the third groove is from the one end communicated with the 4th groove
Start to tilt down extension；
When the first component and the second component are mutually fastened and connected, first groove (31) and the third
Groove combines to form the pyramid loudspeaker element antenna, and second groove and the 4th groove combine to form the combiner
Waveguide channels.
The first component is an integral molding structure, and the second component is an integral molding structure.
The first component is identical as the second component structure.
Mutually matched seam allowance is provided on the first component and the second component lateral wall connecting portion.
The present invention provides the two of technical solution: a kind of pyramid loudspeaker element antenna inhibiting array graing lobe, comprising: two
A pyramid loudspeaker element antenna and combiner；
Described two pyramid loudspeaker element antennas are arranged side by side；The combiner is to halve combiner, the bisection
Combiner, which passes through, to be disposed with: the parallel first wave guide branch of two-way and all the way second waveguide branch；It is described
Two pyramid loudspeaker element antennas are separately connected the parallel first wave guide branch of the two-way.
The first Wedge structure is provided on the waveguide channels inner wall of the second waveguide tributary port face.
The present invention provides a kind of pyramidal horn antennas, and at least two pyramid loudspeaker element antenna groups, which are combined into one, to be had
The pyramidal horn antenna of conventional size, the hypotelorism between each pyramid loudspeaker element antenna, the present invention can be right along one
Title face separates loudspeaker, is then disposably completed using mach mode, and precision can go to protect by the precision of machining tool
Card has higher amplitude-phase consistency without going to guarantee by additional assembly technology between the junior unit after segmentation, this
Being conducive to the different channel attached antennas of entire array has more consistent radiation characteristic.Antenna radiation pattern can effectively be inhibited
Graing lobe, to promote image quality；Since each tributary unit is still an electromagnetic horn unit, so in the two sides in the face E,
Electric current has all passed through identical skew wall, more uniform in the face E in the electric field that junior unit mouth face is formed, and is capable of forming at least two
A compact cosine distribution mouth face, to obtain bigger gain and beam efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the pyramidal horn antenna of the prior art is arranged in the structural schematic diagram of aerial array；
Fig. 2 is an a kind of perspective view of pyramidal horn antenna of the embodiment of the present invention；
Fig. 3 is a kind of top view of pyramidal horn antenna of the embodiment of the present invention；
Fig. 4 is a kind of cosine distribution mouth face effect picture of pyramidal horn antenna of the embodiment of the present invention；
Fig. 5 is a kind of another perspective view of pyramidal horn antenna of the embodiment of the present invention；
Fig. 6 is the perspective view of the first component in a kind of pyramidal horn antenna of the embodiment of the present invention；
Fig. 7 is the schematic diagram of internal structure of the first component in a kind of pyramidal horn antenna of the embodiment of the present invention；
Fig. 8 is a kind of left view of pyramidal horn antenna of the embodiment of the present invention；
Fig. 9 is a kind of right view of pyramidal horn antenna of the embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of aerial array of the embodiment of the present invention.
In figure:
1 pyramid loudspeaker element antenna；2 combiners；21 first wave guide branches；22 second waveguide branches；23 feed ports；
24 first Wedge structures；25 transition waceguide branches；3 first components；31 first grooves；32 second grooves；321 the 5th grooves；322
6th groove；33 seam allowances；34 second Wedge structures；4 second components.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figures 2 and 3, a kind of pyramid loudspeaker element antenna inhibiting array graing lobe provided in an embodiment of the present invention,
It include: at least two pyramid loudspeaker element antennas 1 and combiner 2.
At least two pyramid loudspeakers element antenna 1 is arranged side by side, at least two pyramid loudspeakers element antenna 1 with
The combiner 2 connects.
The two-way or multiple signals collection that pyramid loudspeaker element antenna 1 receives can be combined into signal all the way by the combiner 2
It is transferred to receiver, or will signal is divided into two-way all the way or multiple signals are transmitted further to pyramid loudspeaker element antenna 1 and send out
It penetrates.
As shown in Fig. 2, at least two pyramid loudspeakers element antenna 1 is along the pyramid loudspeaker in embodiments of the present invention
The face E of antenna is arranged side by side.The face E refers to the directional diagram section parallel with direction of an electric field.
By connecting at least two pyramid loudspeaker element antennas 1 with combiner 2, it is combined into a pyramid loudspeaker day
Line is capable of forming at least two compact cosine distribution mouth faces, and the cosine distribution mouth face is as shown in Figure 4.This at least two
The design in compact cosine distribution mouth face, keeps the field distribution of Antenna aperture more uniform, thus obtain bigger gain and
Beam efficiency.It should be noted that as shown in Figures 2 to 4, pyramidal horn antenna includes two pyramid loudspeaker element antennas 1, remaining
It is also two that string, which is distributed mouth face field, but being not intended to limit pyramidal horn antenna only includes two pyramid loudspeaker element antennas 1, can also
To include three, four, five etc..
In a preferred example of an embodiment of the present invention, the size of each waveguide arm in the combiner 2 is Ka wave
The WR-28 standard waveguide mouth of section ensure that the electric field in each waveguide arm of combiner 2 for main mould transmission.
The first Wedge structure 24 is provided in the combiner 2, the first Wedge structure 24 signal can will split into all the way
Two paths of signals, or two paths of signals is merged into signal all the way, it can be set at the branch of waveguide channels.First Wedge structure 24
Direction be its tip length direction, it is vertical with the polarization direction of 2 feed port 23 of combiner, also with the transmission of signal
Direction is vertical.In the application of the embodiment of the present invention, such as arrow direction in Fig. 3, which is horizontal direction, with E
Face is parallel.First Wedge structure 24 not only signal can will split into two paths of signals and transmit all the way, but also can make signal
Transmission have good voltage standing wave ratio and broadband properties.
At least two pyramid loudspeaker element antenna groups are combined into a pyramidal horn antenna with conventional size, each angle
The hypotelorism between loudspeaker unit antenna is bored, can effectively inhibit the graing lobe of antenna radiation pattern, to promote image quality.
Embodiment 2
As shown in figure 5, pyramidal horn antenna provided in an embodiment of the present invention includes the first component 3 that can be mutually fastened and connected
With second component 4.
As shown in Figure 6 and Figure 7, the first component 3 includes: the first groove 31 and the second groove 32；First groove
31 quantity is identical as the quantity of the pyramid loudspeaker element antenna 1, and first groove 31 is pyramid loudspeaker unit day
The inner cavity of line 1, second groove 32 are the inner cavity of the combiner 2；First groove 31 and the second groove 32 communicate, institute
The two sides side wall for stating the first groove 31, which is expanded since the one end communicated with second groove 32 to two sides, to be extended, and described first
The bottom of groove 31 tilts down extension since the one end communicated with second groove 32.
The second component 4 includes: third groove and the 4th groove；The quantity of the third groove and the pyramid loudspeaker
The quantity of element antenna 1 is identical, and the third groove is the inner cavity of the pyramid loudspeaker element antenna 1, and the 4th groove is
The inner cavity of the combiner 2, the third groove and the 4th groove communicate, and the two sides side wall of the third groove is from described
One end that four grooves communicate starts to expand to two sides and extend, and the bottom of the third groove is from one communicated with the 4th groove
End starts to tilt down extension.
When the first component 3 and the second component 4 are mutually fastened and connected, first groove 31 and the third
Groove combines to form the pyramid loudspeaker element antenna 1, and second groove 32 and the 4th groove combine to form the conjunction
The waveguiding channel of road device 2.
Preferably, the first component 3 is an integral molding structure, and the second component 4 is an integral molding structure.
In a kind of preferable example of the present embodiment, the first component 3 is identical as 4 structure of second component.
Chamfering structure can be used at the corner structure of the first component 3 and the second component 4, added with more easily mechanical
Work.
In embodiments of the present invention, the first component 3 and the second component 4 use identical structure, and are integrally formed
Structure can be processed by milling machine, and can be improved processing efficiency, and processing cost is reduced, and antenna assemblies are simple and convenient.
In the concrete realization, the first component 3 and the second component 4 can be connected by screw (not drawn in the figure)
It connects.It should be noted that not making concrete restriction to the connection type of the first component 3 and the second component 4 herein.
In the concrete realization, phase interworking is provided on the first component 3 and the 4 lateral wall connecting portion of second component
The seam allowance 33 of conjunction.Preferably, on 4 lateral wall connecting portion of the first component 3 and the second component, side is bulge-structure, separately
Side is groove structure, and when the first component 3 and the mutually fastening of the second component 4, which can be embedded in the groove
In structure, and the first component 3 and the second component 4 are bonded into a complete pyramidal horn antenna by seam allowance 33.
In embodiments of the present invention, the pyramidal horn antenna that embodiment 1 provides has obtained identical the by perpendicular bisected
One component 3 and the second component 4.Similarly, vertical do not wait can also be carried out to divide, obtain the different first component 3 and institute
Second component 4 is stated, and horizontal segmentation can also be carried out.It should be noted that the pyramidal horn antenna that embodiment 1 provides can be with
It by any segmentation, then assembles each partition member to form complete pyramidal horn antenna again, so here, not to embodiment
The segmentation form of 1 pyramidal horn antenna provided is limited, i.e., does not limit the specific structure of partition member.
Embodiment 3
As shown in Figures 2 and 3, the embodiment of the invention provides a kind of pyramidal horn antennas, comprising: two pyramid loudspeaker lists
First antenna 1 and combiner 2.
Described two pyramid loudspeaker element antennas 1 are arranged side by side；The combiner 2 is to halve combiner, the bisection
Combiner is that E surface wave conductivity type halves combiner.
Specifically, which, which passes through, is disposed with: the parallel first wave guide branch of two-way
21 and second waveguide branch 22 all the way；Described two pyramid loudspeaker element antennas 1 are separately connected the parallel first wave of the two-way
Lead branch 21.The parallel first wave guide branch 21 of two-way connects second waveguide branch all the way by transition waceguide branch 25 respectively
22.The waveguide channels for halving combiner are in Y type.
As shown in figure 5, a kind of pyramidal horn antenna of the embodiment of the present invention includes the first component 3 and second component 4, first
Component 3 is identical with the structure of second component 4, when the first component 3 and the mutually fastening of second component 4, can make up complete angle
Bore electromagnetic horn.It is believed that the structure of the first component 3 and second component 4 is hung down with pyramidal horn antenna as shown in Figure 2
The structure of the cutting part formed after straight equal part cutting is roughly the same.
As shown in fig. 7, the first component 3 includes: the first groove 31 and the second groove 32.First groove 31 is provided with two
A, first groove 31 is the inner cavity of the pyramid loudspeaker element antenna 1,32 phase of first groove 31 and the second groove
Logical, the two sides side wall of first groove 31, which is expanded since the one end communicated with second groove 32 to two sides, to be extended, institute
The bottom for stating the first groove 31 tilts down extension since the one end communicated with second groove 32.Second groove 32
For the inner cavity of the combiner 2.Since the bisection combiner includes the parallel first wave guide branch 21 of two-way and all the way second
Waveguide arm 22, correspondingly, the second groove 32 the 6th groove 322 including the 5th parallel groove 321 of two-way and all the way.
When the first component 3 and second component 4 mutually fasten, upper and lower two the first grooves 31 can be combined into pyramid loudspeaker
The inner cavity of element antenna 1, upper and lower two the second grooves 32 can be combined into the inner cavity of combiner 2.
As shown in figure 3, being provided with the first wedge knot on the waveguide channels inner wall of the 22 port face of second waveguide branch
Structure 24 transmits signal all the way and is transmitted by that can be divided into two paths of signals after Wedge structure.Correspondingly, the as shown in fig. 7, the 6th
The second Wedge structure 34 is provided on the cell wall of 322 notch face of groove, the second Wedge structure 34 is the first Wedge structure 24
Half.When the first component 3 and second component 4 mutually fasten, two the second about 34 Wedge structures fasten the first wedge of composition
Structure 24.
The direction of first Wedge structure 24 is vertical with the polarization direction of 2 feed port 23 of combiner, the biography with signal
Defeated direction is also vertical.In the concrete application of the present embodiment, the face E is parallel to horizontal plane, the polarization of 2 feed port 23 of combiner
Direction is also parallel with horizontal plane, so the direction of these Wedge structures is vertical direction.The setting of Wedge structure can make antenna
With good voltage standing wave ratio and broadband properties.
The size of the parallel first wave guide branch 21 of two-way and second waveguide branch 22 all the way is equal in embodiments of the present invention
For the WR-28 standard waveguide mouth of Ka wave band, so that two-way TE10Mould synthesizes TE all the way10Mould, two paths of signals constant amplitude is the same as mutually progress
Transmission.Transition waceguide branch 25 between the parallel first wave guide branch 21 of two-way and second waveguide branch 22, which is all made of, to be matched
Structure, the distance between the corner angle of the wedge corner angle of the first Wedge structure 24 apart from second waveguide branch 22 are no more than 7.12mm,
To guarantee that higher mode cannot be generated since waveguide dimensions expansion is too fast in function branch point, since the spacing of two units has
Limit, transition waceguide branch 25 cannot be too long, and in order to connect with first wave guide branch 21, the waveguide electric field direction of propagation must reverse 90
Degree, is optimized design to the corner of waveguide arm 25, so that 24 bevel edge of 25 bevel edge of waveguide arm and the first Wedge structure
The region surrounded does not generate higher mode always in tight space, has not only met the limitation requirement in space, but also high without generating
Secondary mould and strong reflection have finally obtained the waveguide channels size for being most suitable for signal transmission, so as to farthest reduce
Signal reflex, the mating structure can be obtained by simulation calculation.
In a particular application, the feed end of pyramid loudspeaker element antenna 1 is entered from pyramidal horn antenna mouth face when signal
When mouth, the TE of two 1 feed-ins of pyramid loudspeaker element antenna10Mould can pass sequentially through combiner 2 and merge into signal all the way.
Preferably, as shown in figure 4, the long l of pyramidal horn antenna provided by the invention is 50mm, wide d is 22mm, and high h is
22.8mm；As shown in figure 8, the long f for the port that pyramid loudspeaker element antenna 1 is connected with combiner 2 is 7.12mm, wide e is
3.56mm；As shown in figure 9, the long b of the feed port 23 of combiner 2 is 7.12mm, wide a is 3.56mm.
As shown in Figure 10, above-mentioned multiple pyramidal horn antennas can successively be arranged side by side along the face E, be arranged in aerial array,
Each pyramidal horn antenna can be regarded as array element.Pyramidal horn antenna provided in an embodiment of the present invention includes two pyramid loudspeakers
Element antenna is reduced in the array element spacing that compared with the pyramidal horn antenna of conventional identical size, can be equivalent to aerial array
It is the 1/2 of standard element antenna spacing, can effectively inhibits the graing lobe of antenna radiation pattern, to promote image quality.Such as
The visual field of camera shooting type millimeter wave human body safety check instrument, can azimuth plane -20 spend~20 degree in effectively inhibit graing lobes, thus raising at
Image quality amount.It should be noted that the embodiment of the present invention, which provides pyramidal horn antenna, can apply in multiple places, do not do herein
Limitation.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
A kind of pyramidal horn antenna provided by the present invention and a kind of aerial array are described in detail above, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (10)
1. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe characterized by comprising at least two pyramid loudspeaker units
Antenna (1) and combiner (2)；
At least two pyramid loudspeakers element antenna (1) be arranged side by side, at least two pyramid loudspeakers element antenna (1) with
Combiner (2) connection.
2. it is according to claim 1 it is a kind of inhibit array graing lobe pyramid loudspeaker element antenna, it is characterised in that: it is described extremely
Few two pyramid loudspeaker element antennas (1) are arranged side by side along the face E of the pyramidal horn antenna.
3. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 1, it is characterised in that: the conjunction
The size of the feed port (23) of road device (2) is the WR-28 standard waveguide mouth size of Ka wave band.
4. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 1, it is characterised in that: the conjunction
It is provided with the first Wedge structure (24) in road device (2), the feedback in the direction and the combiner (2) of first Wedge structure (24)
The polarization direction of electric port (23) is vertical.
5. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 1, it is characterised in that: the angle
Boring electromagnetic horn includes the first component (3) and second component (4) being mutually fastened and connected；
The first component (3) includes: the first groove (31) and the second groove (32)；The quantity (31) of first groove and institute
The quantity for stating pyramid loudspeaker element antenna (1) is identical, and first groove (31) is the interior of the pyramid loudspeaker element antenna (1)
Chamber, second groove (32) are the inner cavity of the combiner (2)；First groove (31) and the second groove (32) communicate,
The two sides side wall of first groove (31), which is expanded since the one end communicated with second groove (32) to two sides, to be extended, institute
The bottom for stating the first groove (31) tilts down extension since the one end communicated with second groove (32)；
The second component (4) includes: third groove and the 4th groove；The quantity of the third groove and the pyramid loudspeaker list
The quantity of first antenna (1) is identical, and the third groove is the inner cavity of the pyramid loudspeaker element antenna (1), the 4th groove
For the inner cavity of the combiner (2), the third groove and the 4th groove are communicated, the two sides side wall of the third groove from institute
It states one end that the 4th groove communicates to start to expand extension to two sides, the bottom of the third groove is communicated from the 4th groove
One end start to tilt down extension；
When the first component (3) and the second component (4) are mutually fastened and connected, first groove (31) and described
Three grooves combine to form the pyramid loudspeaker element antenna (1), and second groove (32) and the 4th groove combine to be formed
The waveguide channels of the combiner (2).
6. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 5, it is characterised in that: described the
One component (3) is an integral molding structure, and the second component (4) is an integral molding structure.
7. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 5 or 6, it is characterised in that: institute
It is identical as second component structure (4) to state the first component (3).
8. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 5, it is characterised in that: described the
Mutually matched seam allowance (33) are provided on one component (3) and the second component (4) lateral wall connecting portion.
9. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe, it is characterised in that: include: two pyramid loudspeaker element antennas
(1) and combiner (2)；
Described two pyramid loudspeaker element antennas (1) are arranged side by side；The combiner (2) is to halve combiner, described second-class
Combiner device, which passes through, to be disposed with: the parallel first wave guide branch (21) of two-way and all the way second waveguide branch
(22)；Described two pyramid loudspeaker element antennas (1) are separately connected the parallel first wave guide branch (21) of the two-way.
10. a kind of pyramid loudspeaker element antenna for inhibiting array graing lobe according to claim 9, it is characterised in that: described
The first Wedge structure (24) are provided on the waveguide channels inner wall of second waveguide branch (22) port face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340232.6A CN109361074B (en) | 2018-11-12 | 2018-11-12 | Pyramid horn unit antenna for inhibiting array grating lobe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340232.6A CN109361074B (en) | 2018-11-12 | 2018-11-12 | Pyramid horn unit antenna for inhibiting array grating lobe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109361074A true CN109361074A (en) | 2019-02-19 |
| CN109361074B CN109361074B (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340232.6A Active CN109361074B (en) | 2018-11-12 | 2018-11-12 | Pyramid horn unit antenna for inhibiting array grating lobe |
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| EP3845930A1 (en) * | 2019-12-30 | 2021-07-07 | Tsinghua University | Passive security checking device and receiving antenna unit thereof |
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| EP3845930A1 (en) * | 2019-12-30 | 2021-07-07 | Tsinghua University | Passive security checking device and receiving antenna unit thereof |
| CN113126173A (en) * | 2019-12-30 | 2021-07-16 | 清华大学 | Passive security inspection equipment and receiving antenna unit thereof |
| CN113126173B (en) * | 2019-12-30 | 2022-06-03 | 清华大学 | Passive security inspection equipment and receiving antenna unit thereof |
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| Publication number | Publication date |
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| CN109361074B (en) | 2020-11-17 |
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