CN208111677U - Sidelobe Waveguide slot array antenna - Google Patents
Sidelobe Waveguide slot array antenna Download PDFInfo
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- CN208111677U CN208111677U CN201820184893.3U CN201820184893U CN208111677U CN 208111677 U CN208111677 U CN 208111677U CN 201820184893 U CN201820184893 U CN 201820184893U CN 208111677 U CN208111677 U CN 208111677U
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Abstract
The utility model relates to field of antenna, disclose a kind of Sidelobe Waveguide slot array antenna, including feed layer and radiating layer, and the feed layer is located at below the radiating layer；The feed layer includes multiple H-type single ridged waveguides function sub-units, the H-type single ridged waveguides function sub-unit includes the multiple face H single ridged waveguides power splitters, and the face the H single ridged waveguides power splitter is used to convert multichannel TE10 mould signal for the single channel TE10 mould from standard waveguide mouth；Power between the multichannel TE10 mould signal is different, and phase is identical；The ratio of power between the multichannel TE10 mould signal is determined by the distribution of not equal part.The face the H single ridged waveguides power splitter is T-type single ridged waveguides power splitter.The utility model provides a kind of Sidelobe, narrow beam, low section, easy processing, the simple Sidelobe Waveguide slot array antenna of assembly, and relatively narrow beam angle is obtained while can reduce minor lobe.
Description
Technical field
The utility model relates to field of antenna, in particular to Sidelobe Waveguide slot array antenna.
Background technique
With the development of the raising and modern electronics industry that require Radar cross-section redaction, it is desirable that antenna should have Sidelobe or
The performance of extremely low minor lobe, for reducing interference of the ambient enviroment to signal is received.In recent years, it highly sensitive, broadband and low cuts open
Face, Sidelobe high-performance array antenna due to have the characteristics that multiband, low cost, in radar, communication, remote sensing telemetering, sky
Between the fields such as technology be widely used.
Currently used array antenna form mainly has micro-strip array antenna and Waveguide slot array antenna.
Micro-strip array antenna has the characteristics such as low, at low cost, the light-weight and easy processing of section, but when frequency raising or day
When linear array scale becomes larger, micro-strip array antenna conductor losses and dielectric loss cause its Insertion Loss to increase, thus can not be real simultaneously
Existing high-frequency, high efficiency and high-gain.
Waveguide slot array antenna is cut off on inner wall by cutting one or several gap on the conducting wall of waveguide
Current line, a part of waveguide inner wall surface electric current can bypass gap at gap, and another part along former direction to be displaced
The form of electric current flows through gap, and the power line at slit aperture generates radiation.Waveguide slot array antenna have conductor losses it is low,
The characteristics such as high efficiency and performance are stable.
Traditional Waveguide slot array antenna includes feed layer and radiating layer, and feed layer is generally made of rectangular waveguide, by
It is big in the volume of Rectangular Waveguide Structure, lack the flexibility of design, the case where considering the amplitude and phase distribution of antenna aperature
Under, it is difficult to suitable power weightings feed network for waveguide is designed, and when required power ratio is excessive, phase difference is too
Greatly, rectangular waveguide cannot achieve.
Therefore, it is necessary to which it is simple to provide a kind of Sidelobe, high-gain, high-frequency, narrow beam, low section, easy processing, assembly
Sidelobe Waveguide slot array antenna.
Utility model content
The purpose of this utility model is to provide a kind of Sidelobe Waveguide slot array antennas, while can reduce minor lobe
Obtain relatively narrow beam angle.
The utility model discloses a kind of Sidelobe Waveguide slot array antenna, including feed layer and radiating layer, feed layers
Below radiating layer；
Feed layer includes multiple H-type single ridged waveguides function sub-units, and H-type single ridged waveguides function sub-unit includes the multiple face H list ridges
Waveguide power divider, the face H single ridged waveguides power splitter are used to convert multichannel TE10 mould for the single channel TE10 mould from standard waveguide mouth
Signal；
Power between multichannel TE10 mould signal is different, and phase is identical；The ratio of power between multichannel TE10 mould signal
It is determined by the distribution of not equal part.
In a preferred embodiment, the face H single ridged waveguides power splitter is T-type single ridged waveguides power splitter.
In a preferred embodiment, feed layer includes feeding network, and feeding network includes that multiple H-type single ridged waveguides function point are single
Member, H-type single ridged waveguides function sub-unit include 3 T-type single ridged waveguides power splitters.
In a preferred embodiment, equal part distribution does not include that Taylor is distributed, Chebyshev's distribution or binomial distribution.
In a preferred embodiment, radiating layer includes the first radiating element being laminated from bottom to up, the second radiating element and
Three radiating elements；First radiating element includes the first metal plate and the first radiating curtain for being arranged on the first metal plate,
First radiating curtain includes spaced multiple radial chambers.
In a preferred embodiment, the second radiating element include the second metal plate and be arranged on the second metal plate the
Two radiating curtains, the second radiating curtain include multiple spaced first radiation groups, and the first radiation group and radial chamber one are a pair of
It should be connected to, the first radiation group includes multiple first radiating apertures, and it is recessed that the lower surface of the second metal plate is provided with multiple second rectangles
Chamber, the second rectangle cavity are located among two the first radiating apertures of row, finely tune two rows the by finely tuning the position of the second rectangle cavity
The energy proportion of one radiating aperture.
In a preferred embodiment, third radiating element include third metal plate and be arranged on third metal plate the
Three radiating curtains, third radiating curtain include multiple spaced second radiation groups, the second radiation group and the first radiation group one
One corresponding connection.
In a preferred embodiment, T-type single ridged waveguides power splitter includes the metal ridge and rectangular base that three sections of T-type interruptions are placed
Plate, rectangular base plate are connect with metal ridge respectively, and rectangular waveguide cavity is provided between rectangular base plate and metal ridge, pass through tune
Section the distance between metal ridge and T-type intersection carry out regulation power allocation proportion, and rectangular base plate and metal ridge are used to impedance
Match.
In a preferred embodiment, feed layer includes 2n2A output port and an input port, 2n2A output port is in
Between to both ends Taylor's distribution that energy is gradually cut is presented, feed layer is divided into two n2The feeding network of a output port, two feeds
Network is connected by a big constant amplitude with the T junction single ridged waveguides power splitter of phase, symmetrical about T junction single ridged waveguides power splitter,
And Energy distribution is identical；
Feeding network includesA H-type single ridged waveguides power division network,A H-type single ridged waveguides function
Subnetwork is uniformly distributed to be formedRow1st grade of feeding network array of column, by 2 rows in the 1st grade of feeding network array × 2 column
H-type single ridged waveguides power division network as the 1st grade of H-type single ridged waveguides power division network unit, each 1st grade of H-type single ridged waveguides function
The input terminal of 4 H-type single ridged waveguides power division networks in subnetwork unit passes through a H-type single ridged waveguides power division network connection；
The H-type single ridged waveguides power division network of 4 H-type single ridged waveguides power division network input terminals is constitutedRowThe 2nd grade of column
Feeding network array, using 2 rows in the 2nd grade of feeding network array × 2 column H-type single ridged waveguides power division network as the 2nd grade of H-type list
Ridge waveguide power division network unit, the 2nd grade of feeding network array includeA 2nd grade of H-type single ridged waveguides power division network unit, often
The input terminal of 4 H-type single ridged waveguides power division networks in a 2nd grade of H-type single ridged waveguides power division network unit passes through a H-type list
The connection of ridge waveguide power division network；
And so on, until only including -1 grade of H-type single ridged waveguides power division network of kth of 4 H-type single ridged waveguides power division networks
Unit constitutes -1 grade of feeding network array of kth, 4 H-type single ridged waveguides in -1 grade of H-type single ridged waveguides power division network unit of kth
The input terminal of power division network is connected also by a kth grade H-type single ridged waveguides power division network unit, kth grade H-type single ridged waveguides function
The input port of subnetwork unit is by a constant amplitude with the T junction single ridged waveguides function point and another identical n of phase2It is a
The input port of the kth grade H-type single ridged waveguides power division network unit of output port feeding network connects.
In a preferred embodiment, four output ends of each H-type single ridged waveguides power division network in the 1st grade of feeding network point
It is not provided with single ridged waveguides-rectangular waveguide converter, single ridged waveguides-rectangular waveguide converter and the first radiating element correspond
Connection；
Single ridged waveguides-rectangular waveguide converter is defeated including the first face E step, the first face E step, the face H step, rectangular waveguide
Outlet, single ridged waveguides input port and rectangular enclosure；
The first face E step and the 2nd face E step are provided on the left of rectangular enclosure, the height of the first face E step is lower than square
Front side wall, rear wall and the left side wall connection of the height of shape cavity, the first face E step and rectangular enclosure；
2nd face E step is located above the first face E step, the lower surface of the 2nd face E step and the upper table of the first face E step
Face is fitted and connected, width of the 2nd face the E step width less than the first face E step, the front side of the 2nd face E step and rectangular enclosure
Wall, rear wall are connected with left side wall；
The face H step, right side wall and the rear wall connection of the face H step and rectangular enclosure, the face H are provided on the right side of rectangular enclosure
The height of step and the height of rectangular enclosure are equal；
Single ridged waveguides-rectangular waveguide converter upper surface is provided with the rectangular waveguide delivery outlet communicated with rectangular enclosure；
Single ridged waveguides input port, single ridged waveguides input port are provided on single ridged waveguides-rectangular waveguide converter leading flank
It is connected to rectangular enclosure, the height of single ridged waveguides input port and the height of rectangular enclosure are equal, the bottom surface of single ridged waveguides input port
It is in the same plane with the bottom surface of rectangular enclosure；
The ridge ladder extended on rectangular enclosure bottom surface is provided at single ridged waveguides input port, ridge ladder includes being sequentially connected
The first ridge step and the second ridge step, the height of the first ridge step is greater than the height of the second ridge step, the height of the first ridge step
Degree is less than the height of rectangular enclosure；
The single ridged waveguides-rectangular waveguide converter is reduced for carrying out impedance matching due to Rectangular Waveguide Structure and list
Return loss caused by the discontinuity of ridge waveguide structure, to make the structure that there are good broadband transmission characteristics.
A large amount of technical characteristic is described in the description of the present application, is distributed in each technical solution, if to enumerate
Out if the combination (i.e. technical solution) of all possible technical characteristic of the application, specification can be made excessively tediously long.In order to keep away
Exempt from this problem, each technical characteristic disclosed in the above-mentioned utility model content of the application, below each embodiment and example
Each technical characteristic disclosed in each technical characteristic and attached drawing disclosed in son, can freely be combined with each other, thus structure
At various new technical solutions (these technical solutions have been recorded because being considered as in the present specification), unless this technical characteristic
Combination be technically infeasible.For example, disclosing feature A+B+C in one example, disclose in another example
Feature A+B+D+E, and feature C and D are the equivalent technologies means for playing phase same-action, as long as technically select a use,
It can not use simultaneously, feature E can be technically combined with feature C, then, the scheme of A+B+C+D is answered because technology is infeasible
When not being considered as having recorded, and the scheme of A+B+C+E should be considered as being described.
The utility model embodiment compared with prior art, at least has following difference and effect：
The utility model provides a kind of Sidelobe, narrow beam, low section, easy processing, the simple Sidelobe waveguide of assembly
Slot array antenna.The utility model used on single ridged waveguides parallelly feeding network Taylor distribution with obtain lower minor lobe and
Relatively narrow beam angle, single ridged waveguides parallelly feeding network structure is compact, can reduce cutoff frequency, widens main mould bandwidth,
Middle single ridge waveguide structure can be on the basis of reducing waveguiding structure volume and antenna section, simple and flexible design function point knot
Structure passes through the available specific minor lobe of accurate power ratio to obtain biggish power ratio.
Further, the utility model is using the face H list ridge rectangular waveguide power splitter the single channel from standard waveguide mouth feed-in
TE10 mould is converted into multichannel power difference, the identical TE10 mould signal of phase, and power proportions are determined by the comprehensive distribution of Taylor,
Relatively narrow beam angle is obtained while can reduce minor lobe.And the face H list ridge rectangular waveguide T junction can be under given frequency
Cut down broadside size, miniaturization, low section may be implemented, and be easily achieved required large scale in the identical situation of phase
Power ratio.
Further, the first radiating element, the layering setting of the second radiating element, can the leakage of anti-stop signal, reduce processing
It is required that and matching requirements, better precision easy to accomplish be advantageously implemented low section, the design of miniaturization and such processing side
Formula is easily installed and light.
It is appreciated that in the scope of the utility model, above-mentioned each technical characteristic of the utility model and (strictly according to the facts below
Apply mode and example) in specifically describe each technical characteristic between can be combined with each other, to constitute new or preferred skill
Art scheme.Due to space limitations, I will not repeat them here.
Detailed description of the invention
Fig. 1 is the partial sectional view of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 2 is the structure chart of the radiating layer of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 3 is the structure chart of the first radiating element of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 4 is the structure of the radial chamber of the first radiating element of the Sidelobe Waveguide slot array antenna of the utility model
Figure；
Fig. 5 is the structure chart of the second radiating element of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 6 is the structure chart of the third radiating element of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 7 is the structure chart of the feed layer of the Sidelobe Waveguide slot array antenna of the utility model；
Fig. 8 is the exemplary detailed view of the first T-type single ridged waveguides power splitter of the utility model；
Fig. 9 is the exemplary detailed view of the second T-type single ridged waveguides power splitter of the utility model；
Figure 10 is single ridged waveguides-rectangular waveguide converter knot of the Sidelobe Waveguide slot array antenna of the utility model
Composition.
Description of symbols：
First metal plate upper surface 1
Radial chamber 2
The middle part 3 of the front side wall of radial chamber 2 and the middle part 4 of rear wall
The middle part 5 of the left side wall of radial chamber 2 and the middle part 6 of right side wall
Input port 7
Specific embodiment
In the following description, in order to make the reader understand this application better, many technical details are proposed.But this
The those of ordinary skill in field is appreciated that even if without these technical details and many variations based on the following respective embodiments
And modification, the application technical solution claimed also may be implemented.
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
The embodiment of type is described in further detail.
The application first embodiment is related to a kind of Sidelobe Waveguide slot array antenna, and Fig. 1 is the low of the utility model
The partial sectional view of minor lobe Waveguide slot array antenna, including feed layer and radiating layer, the feed layer are located at the radiating layer
Lower section；
The feed layer includes multiple H-type single ridged waveguides function sub-units, and the H-type single ridged waveguides function sub-unit includes multiple
The face H single ridged waveguides power splitter, the face the H single ridged waveguides power splitter is for converting the single channel TE10 mould from standard waveguide mouth to
Multichannel TE10 mould signal；Optionally, the face the H single ridged waveguides power splitter is T-type single ridged waveguides power splitter.
Power between the multichannel TE10 mould signal is different, and phase is identical；Function between the multichannel TE10 mould signal
The ratio of rate is determined by the distribution of not equal part.Optionally, the not equal part distribution includes that Taylor is distributed, Chebyshev's distribution or binomial
Formula distribution.
In one embodiment, the structure of feed layer is as shown in fig. 7, include 2n2A output port and an input port,
The 2n2Taylor's distribution that energy is gradually cut is presented from centre to both ends in a output port, and the feed layer is divided into two n2A output
The feeding network of port, two feeding networks are connected with the T junction single ridged waveguides power splitter of phase by a big constant amplitude, are closed
It is symmetrical in the T junction single ridged waveguides power splitter, and Energy distribution is identical；
The feeding network includesA H-type single ridged waveguides power division network, it is describedA H-type list
Ridge waveguide power division network is uniformly distributed to be formedRow1st grade of feeding network array of column, by the 1st grade of feeding network battle array
2 rows in column × 2 column H-type single ridged waveguides power division network is as the 1st grade of H-type single ridged waveguides power division network unit, and each described 1st
The input terminal of 4 H-type single ridged waveguides power division networks in grade H-type single ridged waveguides power division network unit passes through a H-type list ridge ripple
Lead power division network connection；
The H-type single ridged waveguides power division network of 4 H-types single ridged waveguides power division network input terminal is constitutedRowColumn
2nd grade of feeding network array, using the H-type single ridged waveguides power division network of the column of 2 rows in the 2nd grade of feeding network array × 2 as
2nd grade of H-type single ridged waveguides power division network unit, the 2nd grade of feeding network array includeA 2nd grade of H-type single ridged waveguides
Power division network unit, 4 H-type single ridged waveguides power division networks in each 2nd grade of H-type single ridged waveguides power division network unit
Input terminal passes through a H-type single ridged waveguides power division network connection；
And so on, until only including -1 grade of H-type single ridged waveguides power division network of kth of 4 H-type single ridged waveguides power division networks
Unit constitutes -1 grade of feeding network array of kth, 4 H-type list ridges in -1 grade of H-type single ridged waveguides power division network unit of the kth
The input terminal of waveguide power division network is connected also by a kth grade H-type single ridged waveguides power division network unit, the kth grade H-type list
The input port of ridge waveguide power division network unit is by a constant amplitude with the T junction single ridged waveguides function point and another complete phase of phase
Same n2The input port of the kth grade H-type single ridged waveguides power division network unit of a output port feeding network connects.
In one embodiment, four outputs of each H-type single ridged waveguides power division network in the 1st grade of feeding network
End is respectively arranged with single ridged waveguides-rectangular waveguide converter, the single ridged waveguides-rectangular waveguide converter and first radiation
Unit connects one to one；
Figure 10 is single ridged waveguides-rectangular waveguide converter knot of the Sidelobe Waveguide slot array antenna of the utility model
Composition.Single ridged waveguides-rectangular waveguide converter includes rectangular metal block, and rectangular enclosure is provided in rectangular metal block, and rectangle is empty
The first face E step and the 2nd face E step are provided on the left of chamber, the height of the first face E step is lower than the height of rectangular enclosure, the
The front side wall of one face E step and rectangular enclosure, rear wall and left side wall connection, the 2nd face E step are located on the first face E step,
The lower surface of 2nd face E step and the upper surface of the first face E step are fitted and connected, and the 2nd face E step width is less than the first E
Front side wall, rear wall and the left side wall connection of the width of face step, the 2nd face E step and rectangular enclosure.
The face H step, right side wall and the rear wall connection of the face H step and rectangular enclosure, the face H are provided on the right side of rectangular enclosure
The height of step and the height of rectangular enclosure are equal, and the upper surface of rectangular metal block is provided with the rectangular wave communicated with rectangular enclosure
Lead delivery outlet.
Single ridged waveguides input port is provided on the leading flank of rectangular metal block, single ridged waveguides input port and rectangular enclosure connect
Logical, the height of single ridged waveguides input port and the height of rectangular enclosure are equal, the bottom surface of single ridged waveguides input port and rectangular enclosure
Bottom surface is in the same plane, and the bottom surface of single ridged waveguides input port is provided with the ridge ladder extended on rectangular enclosure bottom surface, ridge
Ladder includes sequentially connected first ridge step and the second ridge step, and the height of the first ridge step is greater than the height of the second ridge step
Degree, the height of the first ridge step are less than the height of rectangular enclosure.In the structure, single ridged waveguides-rectangular waveguide converter is in single ridge
Waveguide and rectangular waveguide joint are provided with the first ridge ladder, are provided in the face rectangular waveguide H corner contour with rectangular waveguide
The face H step, the face rectangular waveguide E corner is provided with the first face E step and the 2nd face E step, the second ridge ladder, the first E
Face step, the 2nd face E step and the face H step are used for impedance matching, reduce the discontinuity bring return loss because of structure, make
The structure has good broadband transmission characteristics.Rectangular Waveguide Structure (no ridge) and single ridge waveguide structure are corresponding when wave is propagated
Impedance is different, and the single ridged waveguides-rectangular waveguide converter significantly reduces the echo as caused by the mismatch of impedance
Loss.
In one embodiment, H-type single ridged waveguides power division network unit includes an input port and four delivery outlets, includes
3 not constant amplitude with phase T junction single ridged waveguides function point, 3 in each H-type single ridged waveguides power division network unit not constant amplitude it is same
The amplitude proportional of the T junction single ridged waveguides function of phase point is all different, and is determined by the ratio that the numerical value that Taylor is distributed is calculated；
H-type single ridged waveguides power division network unit includes two kinds of structures different T junction single ridged waveguides function point, and Fig. 8 is this reality
With the exemplary detailed view of the first novel T-type single ridged waveguides power splitter, Fig. 9 is the second T-type list ridge ripple of the utility model
Lead the exemplary detailed view of power splitter.
First T-type single ridged waveguides power splitter is to replace with a side in the junction of 3 sections of single ridged waveguides of T-junction placement
Shape waveguide cavity, rectangular waveguide cavity bottom be arranged a rectangular base plate, rectangular base plate respectively with the ridge in three sections of single ridged waveguides
Connect, the height of the rectangular base plate is less than the half of the height of third rectangle cavity, reaches T-shaped friendship by adjusting metal ridge
The position of metal ridge in regulation power allocation proportion, all H-type single ridged waveguides power division network units inside converging all is
Different, rectangular base plate and metal ridge are used to impedance matching；
Second T junction single ridged waveguides power splitter is similar with the first T junction single ridged waveguides power divider structure, and difference is exactly second
Single ridged waveguides overall offset a certain distance of one output of T junction single ridged waveguides function point, this distance is by two output ends
The phase difference of mouth determines.
In one embodiment, radiating layer includes the first radiating element being laminated from bottom to up, the second radiating element and
Three radiating elements；Fig. 1 is the partial sectional view of the Waveguide slot array antenna of the utility model；Fig. 2 is the wave of the utility model
The structure chart of the radiating layer of waveguide slot array antenna；Fig. 3 is that the first radiation of the Waveguide slot array antenna of the utility model is single
The structure chart of member；Fig. 5 is the structure chart of the second radiating element of the Waveguide slot array antenna of the utility model；Fig. 6 is this reality
With the structure chart of the third radiating element of novel Waveguide slot array antenna.
First radiating element includes the first metal plate and the first radiating curtain for being arranged on the first metal plate, and first
Radiating curtain includes spaced 2n2A radial chamber, n=2k, k is the positive integer more than or equal to 2.Radial chamber 2 is setting the
First rectangle cavity of one metal plate upper surface 1,2n2A radial chamber 2 is distributed in the first metal in the way of n row × 2n column
On plate 1, the middle part 3 of the front side wall of radial chamber 2 and the middle part 4 of rear wall are each provided with the first matching disc, the left side of radial chamber 2
The middle part 5 of wall and the middle part 6 of right side wall are each provided with the second matching disc, using the front side wall direction of radial chamber 2 as length direction,
As width direction, the height of the first matching disc and the second matching disc is equal to the height of radial chamber 2 in the left side wall direction of radial chamber 2
Degree, the upper surface of the upper surface and the first metal plate of the upper surface of the first matching disc and the second matching disc is generally aligned in the same plane
On, 1/5th of 2 length of of length no more than radial chamber of the first matching disc, the width of the first matching disc is no more than radial chamber 2
/ 5th of width, 1/5th of 2 length of of length no more than radial chamber of the second matching disc, the width of the second matching disc is not
More than the one third of 2 width of radial chamber, the bottom end of each radial chamber 2, which is provided with, extends to the defeated of the first metal plate lower surface
Inbound port 7, input port 7 are rectangular opening, and the front side wall of input port 7 is parallel to the front side wall of radial chamber 2, input port 7
Left sidewall is in the left side wall of radial chamber 2, and the center of input port 7 is Chong Die with the center of radial chamber 2, the length of input port 7
Degree is less than the distance between two second matching discs, and the width of input port 7 is less than the distance between two first matching discs.
Second radiating element includes the second metal plate and the second radiating curtain for being arranged on the second metal plate, and second
Radiating curtain includes 2n2A spaced first radiation group, 2n2A first radiation group is arranged in the way of n row × 2n column
On second metal plate, 2n2A first radiation group and 2n2A radial chamber corresponds connection, and the first radiation group includes according to 2 rows
Four the first radiating apertures that × 2 column are intervally arranged, the first radiating aperture are to extend to the second gold medal from the upper surface of the second metal plate
Belong to the rectangular opening of the lower surface of plate, four the first radiating apertures in each first radiation group are located at the radiation of corresponding connection
The surface of chamber.Wherein, the front side wall of two the first radiating aperture positioned at the 1st row is flushed with the front side wall of radial chamber, is located at the 2nd
The capable rear wall of two the first radiating aperture is flushed with the rear wall of radial chamber, positioned at a left side for two the first radiating aperture of the 1st column
Side wall is flushed with the left side wall of radial chamber, neat positioned at the right side wall of two the first radiating apertures of the 2nd column and the right side wall of radial chamber
It is flat；The lower surface of second metal plate is provided with 2n2A second rectangle cavity, the height of the second rectangle cavity is less than first
The height of radiating aperture, the width of the second rectangle cavity is less than the distance between two first radiating apertures of row, the second rectangle cavity
Among two the first radiating apertures of row, the energy ratio of two the first radiating apertures of row is finely tuned by finely tuning the position of the second rectangle cavity
Example.
Third radiating element includes third metal plate and the third radiating curtain that is arranged on third metal plate, third
Radiating curtain includes 2n2A spaced second radiation group, 2n2A second radiation group is arranged in the way of n row × 2n column
On third metal plate, 2n2A second radiation group and 2n2A first radiation group corresponds connection, the second radiation group include according to
Four the second radiating apertures that 2 rows × 2 column are intervally arranged, the second radiating aperture are to extend to third from the upper surface of third metal plate
The length of the rectangular opening of the lower surface of metal plate, the second radiating aperture is equal to the first radiating aperture, and the width of the second radiating aperture is greater than
First radiating aperture, four the first radiating apertures one in the first radiation group that four the second radiating apertures communicate therewith in the second radiation group
One corresponding center is completely overlapped.
It should be noted that relational terms such as first and second and the like are only in the application documents of this patent
For distinguishing one entity or operation from another entity or operation, without necessarily requiring or implying these entities
Or there are any actual relationship or orders between operation.Moreover, the terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only
It including those elements, but also including other elements that are not explicitly listed, or further include for this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ", not
There is also other identical elements in the process, method, article or apparatus that includes the element for exclusion.The application of this patent
In file, if it is mentioned that certain behavior is executed according to certain element, then refers to the meaning for executing the behavior according at least to the element, wherein
It include two kinds of situations：The behavior is executed according only to the element and the behavior is executed according to the element and other elements.
It is incorporated herein by reference in all documents that the utility model refers to, just as each document quilt
It is individually recited as with reference to such.In addition, it should also be understood that, after having read the above-mentioned teaching content of the utility model, this field skill
Art personnel can make various changes or modifications the utility model, and it is claimed that such equivalent forms equally fall within the application
Range.
Claims (10)
1. a kind of Sidelobe Waveguide slot array antenna, which is characterized in that including feed layer and radiating layer, the feed layer is located at
Below the radiating layer；
The feed layer includes multiple H-type single ridged waveguides function sub-units, and the H-type single ridged waveguides function sub-unit includes multiple faces H
Single ridged waveguides power splitter, the face the H single ridged waveguides power splitter are more for converting the single channel TE10 mould from standard waveguide mouth to
Road TE10 mould signal；
Power between the multichannel TE10 mould signal is different, and phase is identical；Power between the multichannel TE10 mould signal
Ratio is determined by the distribution of not equal part.
2. Sidelobe Waveguide slot array antenna according to claim 1, which is characterized in that the face the H single ridged waveguides function point
Device is T-type single ridged waveguides power splitter.
3. Sidelobe Waveguide slot array antenna according to claim 1, which is characterized in that the feed layer includes transmission network
Network, the feeding network include multiple H-type single ridged waveguides function sub-units, and the H-type single ridged waveguides function sub-unit includes 3 T-types
Single ridged waveguides power splitter.
4. Sidelobe Waveguide slot array antenna according to claim 1, which is characterized in that the not equal part distribution includes Thailand
Strangle distribution, Chebyshev's distribution or binomial distribution.
5. Sidelobe Waveguide slot array antenna according to claim 2, which is characterized in that the radiating layer include from down toward
The first radiating element, the second radiating element and the third radiating element of upper stacking；First radiating element includes the first metal
Plate and the first radiating curtain being arranged on first metal plate, first radiating curtain includes spaced more
A radial chamber.
6. Sidelobe Waveguide slot array antenna according to claim 5, which is characterized in that second radiating element includes
Second metal plate and the second radiating curtain being arranged on second metal plate, second radiating curtain includes multiple
Spaced first radiation group, the first radiation group are connected to radial chamber one-to-one correspondence, the first radiation group packet
Multiple first radiating apertures are included, the lower surface of second metal plate is provided with multiple second rectangle cavitys, second rectangle
Cavity is located among the first radiating aperture described in two rows, and the is finely tuned described in two rows by finely tuning the position of the second rectangle cavity
The energy proportion of one radiating aperture.
7. Sidelobe Waveguide slot array antenna according to claim 6, which is characterized in that the third radiating element includes
Third metal plate and the third radiating curtain being arranged on the third metal plate, the third radiating curtain includes multiple
Spaced second radiation group, the second radiation group are connected to the first radiation group one-to-one correspondence.
8. Sidelobe Waveguide slot array antenna according to claim 2, which is characterized in that the T-type single ridged waveguides function point
Device includes the metal ridge and rectangular base plate that three sections of T-type interruptions are placed, and the rectangular base plate is connect with the metal ridge respectively, and
Rectangular waveguide cavity is provided between the rectangular base plate and the metal ridge, by adjusting the metal ridge and T-type intersection
The distance between carry out regulation power allocation proportion, the rectangular base plate and metal ridge are used to impedance matching.
9. Sidelobe Waveguide slot array antenna according to claim 5, which is characterized in that the feed layer includes 2n2It is a defeated
Exit port and an input port, the 2n2Taylor's distribution that energy is gradually cut is presented from centre to both ends in a output port, described
Feed layer is divided into two n2The feeding network of a output port, two feeding networks are by a big constant amplitude with the T-type of phase
The connection of statement of account ridge waveguide power splitter, it is symmetrical about the T junction single ridged waveguides power splitter, and Energy distribution is identical；
The feeding network includesA H-type single ridged waveguides power division network, it is describedA H-type list ridge ripple
Power division network is led to be uniformly distributed to be formedRow1st grade of feeding network array of column, will be in the 1st grade of feeding network array
2 rows × 2 column H-type single ridged waveguides power division network is as the 1st grade of H-type single ridged waveguides power division network unit, each 1st grade of H
The input terminal of 4 H-type single ridged waveguides power division networks in type single ridged waveguides power division network unit passes through a H-type single ridged waveguides function
Subnetwork connection；
The H-type single ridged waveguides power division network of 4 H-types single ridged waveguides power division network input terminal is constitutedRowThe 2nd grade feedback
Electric network array, using 2 rows in the 2nd grade of feeding network array × 2 column H-type single ridged waveguides power division network as the 2nd grade of H-type
Single ridged waveguides power division network unit, the 2nd grade of feeding network array includeA 2nd grade of H-type single ridged waveguides power division network
The input terminal of unit, 4 H-type single ridged waveguides power division networks in each 2nd grade of H-type single ridged waveguides power division network unit is logical
Cross a H-type single ridged waveguides power division network connection；
And so on, until only including -1 grade of H-type single ridged waveguides power division network unit of kth of 4 H-type single ridged waveguides power division networks
Constitute -1 grade of feeding network array of kth, 4 H-type single ridged waveguides in -1 grade of H-type single ridged waveguides power division network unit of the kth
The input terminal of power division network is connected also by a kth grade H-type single ridged waveguides power division network unit, the kth grade H-type list ridge ripple
The input port for leading power division network unit is identical with another with the T junction single ridged waveguides function point of phase by a constant amplitude
n2The input port of the kth grade H-type single ridged waveguides power division network unit of a output port feeding network connects.
10. Sidelobe Waveguide slot array antenna according to claim 9, which is characterized in that in the 1st grade of feeding network
Four output ends of each H-type single ridged waveguides power division network be respectively arranged with single ridged waveguides-rectangular waveguide converter, the list
Ridge waveguide-rectangular waveguide converter connects one to one with first radiating element；
The single ridged waveguides-rectangular waveguide converter is defeated including the first face E step, the first face E step, the face H step, rectangular waveguide
Outlet, single ridged waveguides input port and rectangular enclosure；
The first face E step and the 2nd face E step are provided on the left of the rectangular enclosure, the height of the first face E step is low
In the height of the rectangular enclosure, front side wall, rear wall and the left side wall of the first face the E step and the rectangular enclosure connect
It connects；
2nd face the E step is located above the step of the first face E, the lower surface of the 2nd face E step and the first E
The upper surface of face step is fitted and connected, and the 2nd face the E step width is less than the width of the first face E step, the 2nd E
Face step is connect with the front side wall of the rectangular enclosure, rear wall and left side wall；
The face H step, the right side wall and rear wall of the face H step and the rectangular enclosure are provided on the right side of the rectangular enclosure
Connection, the height of the face H step are equal with the height of the rectangular enclosure；
The single ridged waveguides-rectangular waveguide converter upper surface is provided with the rectangular waveguide output communicated with the rectangular enclosure
Mouthful；
It is provided with single ridged waveguides input port on the single ridged waveguides-rectangular waveguide converter leading flank, the single ridged waveguides is defeated
Entrance is connected to the rectangular enclosure, and the height of the single ridged waveguides input port is equal with the height of the rectangular enclosure, described
The bottom surface of single ridged waveguides input port and the bottom surface of the rectangular enclosure are in the same plane；
The ridge ladder extended on the rectangular enclosure bottom surface is provided at the single ridged waveguides input port, the ridge ladder includes
Sequentially connected first ridge step and the second ridge step, the height of the first ridge step are greater than the height of the second ridge step
Degree, the height of the first ridge step are less than the height of the rectangular enclosure；
The single ridged waveguides-rectangular waveguide converter is reduced for carrying out impedance matching due to Rectangular Waveguide Structure and single ridge ripple
Return loss caused by the discontinuity of guide structure, to make the structure that there are good broadband transmission characteristics.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820184893.3U CN208111677U (en) | 2018-02-02 | 2018-02-02 | Sidelobe Waveguide slot array antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820184893.3U CN208111677U (en) | 2018-02-02 | 2018-02-02 | Sidelobe Waveguide slot array antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123220A (en) * | 2018-02-02 | 2018-06-05 | 苏州灵致科技有限公司 | Sidelobe Waveguide slot array antenna |
| CN111585049A (en) * | 2020-05-18 | 2020-08-25 | 宁波大学 | Low-sidelobe flat plate array antenna |
| CN111585050A (en) * | 2020-05-18 | 2020-08-25 | 宁波大学 | A broadband flat panel array antenna |
| CN114069255A (en) * | 2021-10-28 | 2022-02-18 | 宁波大学 | An all-metal ultra-wideband CTS antenna |
| CN114583459A (en) * | 2022-04-06 | 2022-06-03 | 中车青岛四方机车车辆股份有限公司 | Multilayer gap waveguide slot array antenna |
| CN115377670A (en) * | 2022-07-26 | 2022-11-22 | 四川领航未来通信技术有限公司 | Phase-shifting staggered flat array antenna |
| CN115407328A (en) * | 2021-05-26 | 2022-11-29 | 北京华航无线电测量研究所 | Doppler radar for measuring speed by using overlapped synthetic beams |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108123220A (en) * | 2018-02-02 | 2018-06-05 | 苏州灵致科技有限公司 | Sidelobe Waveguide slot array antenna |
| CN108123220B (en) * | 2018-02-02 | 2024-02-13 | 苏州灵致科技有限公司 | Low-sidelobe waveguide slot array antenna |
| CN111585049A (en) * | 2020-05-18 | 2020-08-25 | 宁波大学 | Low-sidelobe flat plate array antenna |
| CN111585050A (en) * | 2020-05-18 | 2020-08-25 | 宁波大学 | A broadband flat panel array antenna |
| CN111585050B (en) * | 2020-05-18 | 2021-03-02 | 宁波大学 | A Broadband Flat Panel Array Antenna |
| CN115407328A (en) * | 2021-05-26 | 2022-11-29 | 北京华航无线电测量研究所 | Doppler radar for measuring speed by using overlapped synthetic beams |
| CN114069255A (en) * | 2021-10-28 | 2022-02-18 | 宁波大学 | An all-metal ultra-wideband CTS antenna |
| CN114069255B (en) * | 2021-10-28 | 2025-06-06 | 正成防务科技(成都)有限公司 | An all-metal ultra-wideband CTS antenna |
| CN114583459A (en) * | 2022-04-06 | 2022-06-03 | 中车青岛四方机车车辆股份有限公司 | Multilayer gap waveguide slot array antenna |
| CN114583459B (en) * | 2022-04-06 | 2023-10-13 | 中车青岛四方机车车辆股份有限公司 | Multi-layer gap waveguide slot array antenna |
| CN115377670A (en) * | 2022-07-26 | 2022-11-22 | 四川领航未来通信技术有限公司 | Phase-shifting staggered flat array antenna |
| CN115377670B (en) * | 2022-07-26 | 2023-07-04 | 四川领航未来通信技术有限公司 | Flat-panel array antenna with phase shift and dislocation |
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