CN104201477B - A kind of panel antenna array of Ka frequency range - Google Patents
A kind of panel antenna array of Ka frequency range Download PDFInfo
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- CN104201477B CN104201477B CN201410412631.4A CN201410412631A CN104201477B CN 104201477 B CN104201477 B CN 104201477B CN 201410412631 A CN201410412631 A CN 201410412631A CN 104201477 B CN104201477 B CN 104201477B
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Abstract
The panel antenna array of the present invention a kind of Ka frequency range includes: ground floor waveguide power distributing network, second layer waveguide power distributing network, horn radiator: wherein ground floor waveguide power distributing network and second layer waveguide power distributing network are formed by the cascade of multiple waveguide E face T-shaped structures；The number of horn radiator is corresponding with the quantity of waveguide E face T-shaped structure；Each waveguide E face T-shaped structure has two outfans, and horn radiator has two inputs；Two waveguide inputs of horn radiator connect ground floor waveguide power distributing network and the output port of waveguide E face T-shaped structure in second layer waveguide power distributing network respectively.The aerial array of the present invention has high efficiency, low section, high-gain, narrow beam, easily processes, across features such as broadbands.
Description
Technical field
The present invention relates to the panel antenna array of a kind of Ka frequency range, can be used as Ka band satellite communication systematically
Face end quiet in logical, communication in moving system front end, belong to microwave antenna art field.
Background technology
At present, the communication technology of satellite of application Ka frequency range has the advantage that other frequency ranges do not possess, as compared
In traditional Ku band communication satellite, the communication node quantity that Ka band satellite can be supported is far longer than
Ku frequency range.And, Ka band communication satellite has the communication bandwidth of 4 times of Ku band satellite.Work
After the telecommunication satellite of K a frequency range uses spot beam, a single point wave beam can cover 250km～1000km half
The region in footpath, using the teaching of the invention it is possible to provide the channeling of 10～25 times, it would be preferable to support smaller and more exquisite terminal unit.Therefore,
One Ka band communication satellite possesses the ability being equivalent to 20～30 common communications satellites.
The ground surface end of satellite communication system, relatively conventional communication system front end is reflecting surface form or plate shaped
Formula.Wherein, the communication front-end aperture efficiency of reflecting surface form is relatively low, and volume is relatively big, and secondary lobe is uncontrollable,
Far field secondary lobe is poor.And it is seen in the various forms of plate aerials of report at present, aperture efficiency the most relatively low (65%
Below), volume is the biggest, and when there being circular polarisation demand, the thickness of aerial array will be thicker.It addition, mesh
The problem that plate aerial weight in front application is the most maximum, it is difficult to overcome.
Summary of the invention
The technology of the present invention solves problem: overcome the deficiencies in the prior art, it is provided that a kind of Ka frequency range
Panel antenna array, this aerial array have high efficiency, low section, high-gain, narrow beam, easily processing,
Across features such as broadbands.
The technical solution of the present invention:
The panel antenna array of a kind of Ka frequency range includes: ground floor waveguide power distributing network, second layer ripple
Lead power distributing network, horn radiator: wherein ground floor waveguide power distributing network and second layer wave guide power
Rate distribution network is formed by the cascade of multiple waveguide E face T-shaped structures；The number of horn radiator and waveguide E face
The quantity of T-shaped structure is corresponding；Each waveguide E face T-shaped structure has two outfans, and horn radiator has
Two inputs；
Two waveguide inputs of horn radiator connect ground floor waveguide power distributing network and the second layer respectively
The output port of waveguide E face T-shaped structure in waveguide power distributing network.
Described horn radiator includes that horn radiator port, horn radiator sidewall, horn radiator feed
Port, waveguide orthomode coupler, the first tuning block, square wave guide sidewall feed port, sidewall waveguide, the
Two tuning blocks, square wave guide bottom surface feed port, waveguide bend, waveguide bend tuning block；
Horn radiator port is positioned at the leading portion of horn radiator sidewall；One end of horn radiator feed port
It is connected with the rear end of horn radiator sidewall；The other end of horn radiator feed port and waveguide orthogonal mode coupling
One end of clutch is connected；
First tuning block is positioned at waveguide orthomode coupler；It is close to waveguide orthomode coupler and loudspeaker spoke
Emitter feed port is connected table in the inner surface to side of one end and the sidewall of waveguide orthomode coupler
Face；
The sidewall of the waveguide orthomode coupler at the first tuning block place to sidewall and square wave guide sidewall feed end
One end of mouth is connected；Waveguide orthomode coupler be connected with horn radiator feed port one end to side with
One end of square wave guide bottom surface feed port is connected；
Sidewall waveguide is connected for by square wave guide sidewall feed end with the other end of square wave guide sidewall feed port
Mouth feeds for waveguide orthomode coupler；Sidewall waveguide broadside place plane is parallel to waveguide orthomode coupler
Sidewall place plane；
Second tune block be close to sidewall waveguide be connected with square wave guide sidewall feed port end the interior table to side
Face and the inner surface to side of sidewall waveguide input port；Second tune block length and straight wall waveguide
Width edge length is identical；
Waveguide bend is bending waveguide；Waveguide bend is connected with the other end of square wave guide bottom surface feed port and is used for passing through
Square wave guide bottom surface feed port is waveguide orthomode coupler feed；The plane at place, waveguide bend narrow limit and waveguide
The sidewall place plane of orthomode coupler is vertical；
Waveguide bend tuning block is cube structure, is close to the inner surface of the bending place of waveguide bend, and waveguide bend tunes
The bottom surface of waveguide bend is close in block bottom surface, and a drift angle of tuning block overlaps with a base angle of waveguide bend.
Described waveguide E face T-shaped structure includes input waveguide, output waveguide, tuning structure；
Input waveguide is connected with each other with output waveguide with certain forms, and output waveguide two ends are about incoming wave
The centrage led is symmetrical；
Tuning structure is for being positioned at output waveguide depression in the surface structure, and it is positioned at output waveguide with input waveguide even
Connect on the surface of position offside；
Every grade of waveguide E face T-shaped arrangement works is in main mould pattern；Described tuning structure is cube sunk structure.
Described input waveguide and the interconnective form of output waveguide are divided into three kinds:
(a) described input waveguide cube structure, input waveguide is vertical with output waveguide to be connected, and in output
Tuning step is added on the surface of waveguide port, and tuning post component level is in the output waveguide surface one at tuning structure place
Side；A length of wavelength of described tuning structure, a height of 1/10th wavelength, a width of output waveband width；Described
A width of output waveband width of tuning step, high about 1/10th wavelength；
B () described input waveguide is polymorphic structure, its outer contour is by two sections of mutual circumscribed quadrants
Arc connects composition；Add new adjustment structure in output waveguide with the link position of input waveguide simultaneously；Described
The length of tuning structure is about 1/2nd wavelength, high is about 1/10th wavelength, described adjustment structure a width of
Output waveband width, high about 1/10th wavelength；
C () described input waveguide trapezium structure, input waveguide interconnects with output waveguide mutually with non-perpendicular angle
Connect a width of output waveband width of described adjustment structure, high about 1/10th wavelength；Described adjustment structure
Long 1/20th wavelength that is about, a width of output waveband width, high about 1/20th wavelength.
Multiple waveguide E in described ground floor waveguide power distributing network and second layer waveguide power distributing network
Face T-shaped structure can use input waveguide and any one waveguide E face in three kinds of types of attachment of output waveguide
T-shaped structure；
Two waveguide inputs of horn radiator respectively with ground floor waveguide power distributing network, second layer ripple
Lead the mode that in power distributing network, the output port of waveguide E face T-shaped structure is attached as follows: ground floor
The waveguide E face T-shaped structure of afterbody in waveguide power distributing network, second layer waveguide power distributing network
Output waveguide connect sidewall waveguide and waveguide bend input port respectively；Sidewall waveguide and waveguide bend input port
Two waveguide inputs as horn radiator.
Described horn radiator port is to have certain thickness conductor sheet to connect the cube structure of composition；
Described horn radiator feed port, square wave guide sidewall feed port, square wave guide bottom surface feed port are square
Port, height is 1mm.
Described horn radiator sidewall, horn radiator feed port, the center pair of waveguide orthomode coupler
Line is claimed to overlap.
Described waveguide orthomode coupler be cross section be square cuboid waveguide；First tuning block length and ripple
The square-section length of side leading orthomode coupler is identical.
Present invention advantage compared with prior art is:
(1) present invention uses stacked antenna array structure, by upper and lower two-layer cross over the most wide band have stay
Power division network and the orthomode coupler of ripple figuration ability multistage waveguide E face T-shaped knot cascade composition realize
The circular polarisation job requirement of antenna so that array eliminates the structure of circular polarizer, greatly reduces array
Section height, be simultaneously achieved the characteristic of general antenna form inaccessiable covering ultrabroad band, and
Achieve this aerial array to there is high efficiency, low section, high-gain, narrow beam, easily process, across broadband
Etc. feature；Use screw that each layer is attached simultaneously, after waveguide broadside symmetry is cut, machine can be used
Milling processes, on the electrical property of complete machine entirely without impact, reduces difficulty of processing, decreases and be processed into
This, be more suitable for large-scale production processing, and the suitability is higher.
(2) present invention is by horn radiator port and the horn radiator structure of horn radiator sidewall composition
Make the magnetic distribution coupled into more uniform, and then achieve the horn radiator of high calibre efficiency,
The aperture efficiency of horn radiator of the present invention can reach 85% in wider frequency band, makes far away antenna spoke
The efficiency in loophole face is higher than traditional parabola, flat panel satellite communication antenna.
(3) present invention is by using novel simple square wave guide orthomode coupler and multiple tuning block, saves
The structures such as the inductance in conventional orthogonal mode coupler, diaphragm are omited so that difficulty of processing, cost all have significantly
Degree reduces, and practicality is higher, goes for the installation environment of various complexity.
(4) present invention use leap the most wide band have standing wave figuration ability multistage waveguide E face T-shaped knot
The power division network of cascade composition, has the frequency range upper side frequency in whole covering and responds good, and center bin responds
Poor characteristic, it is possible to meet the work requirements of Ka band satellite communication system.
(5) the whole power distributing network of the present invention is formed by the knot cascade of waveguide E face T-shaped, simple in construction,
The tuning amount of the most whole network is saved by tuning structure or the prominent tuning post contrast of depression on sidewall,
Do not comprise the frame for movement that the difficulty of processing such as probe, diaphragm is high so that the present invention processes simply, saves into
This, practicality is greatly enhanced.
(6) the whole waveguide network of the present invention is operated in holotype, can cut in broadside centerline and carry out
Based on machine milling processes, the waveguiding structure after incision relies on bolt structure to connect, without affecting waveguide net
The electrical property of network.
(7) input waveguide of the present invention can use abnormity process, when arrangement cyberspace has in limited time, permissible
The each several part of network is bent, the processing mode such as bending, be greatly saved design space, improve suitable
Ying Xing；Use abnormity to increase new tuning structure when processing, it is possible to adapting to various structures, versatility is more simultaneously
By force,.
(8) present invention can the most dynamically adjust at output waveguide port, caused by this adjustment
Impact uses regulation step and tuning structure to be adjusted, and so this network just goes for multiple application.
(9) the waveguide power distributing network of the present invention is when using bending abnormity to process, new by increasing
Adjustment structure, both can make constant amplitude merit and divide, and made what not constant amplitude merit was divided, to be applicable to more application, suitable
Higher by property.
Accompanying drawing explanation
Fig. 1 present configuration composition schematic diagram；
Fig. 2 is horn radiator structural representation of the present invention；
Fig. 3 is input waveguide of the present invention and output waveguide structural representation connected vertically；
Fig. 4 is input waveguide of the present invention and the structural representation of output waveguide bending connection；
The structural representation that Fig. 5 is input waveguide of the present invention and output waveguide connects at a certain angle；
Fig. 6 is inventive network attachment structure schematic diagram.
Detailed description of the invention
Work process and operation principle to the present invention are further explained below in conjunction with the accompanying drawings:
As it is shown in figure 1, the panel antenna array of a kind of Ka frequency range includes: ground floor waveguide power distributing network
Network, second layer waveguide power distributing network, horn radiator: wherein ground floor waveguide power distributing network and
Second layer waveguide power distributing network is formed by the cascade of multiple waveguide E face T-shaped structures；Horn radiator
Number is corresponding with the quantity of waveguide E face T-shaped structure；Each waveguide E face T-shaped structure has two outfans,
Horn radiator has two inputs；
Two waveguide inputs of horn radiator connect ground floor waveguide power distributing network and the second layer respectively
The output port of waveguide E face T-shaped structure in waveguide power distributing network.
Horn radiator
As in figure 2 it is shown, horn radiator includes horn radiator port 1, horn radiator sidewall 2, loudspeaker
Radiator port 3, waveguide orthomode coupler 4, first tune block 5, square wave guide sidewall feed port
6, sidewall waveguide 7, second tune block 8, square wave guide bottom surface feed port 9, waveguide bend 10, waveguide bend are adjusted
Humorous piece 11；
Horn radiator port 1 is positioned at the leading portion of horn radiator sidewall 2；Horn radiator feed port 3
One end be connected with the rear end of horn radiator sidewall 2；The other end of horn radiator feed port 3 and ripple
The one end leading orthomode coupler 4 is connected；
First tuning block 5 is positioned at waveguide orthomode coupler 4；Be close to waveguide orthomode coupler 4 with
Horn radiator feed port 3 is connected the inner surface to side of one end and waveguide orthomode coupler 4
Side wall inner surfaces；
The sidewall of the waveguide orthomode coupler 4 at the first tuning block 5 place sidewall is presented with square wave guide sidewall
One end of electricity port 6 is connected；Waveguide orthomode coupler 4 is connected with horn radiator feed port 3 one end
The one end to side with square wave guide bottom surface feed port 9 be connected；
Sidewall waveguide 7 is connected for being presented by square wave guide sidewall with the other end of square wave guide sidewall feed port 6
Electricity port 6 feeds for waveguide orthomode coupler 4；Sidewall waveguide 7 broadside place plane is just being parallel to waveguide
Hand over the sidewall place plane of mode coupler 4；
Second tune block 8 be close to sidewall waveguide 7 be connected with square wave guide sidewall feed port 6 end to side
Inner surface and the inner surface to side of sidewall waveguide 7 input port；Second tune block 8 length and side
The width edge length of wall straight wave guide 7 is identical；
Waveguide bend 10 is bending waveguide；Waveguide bend 10 is connected with the other end of square wave guide bottom surface feed port 9
For being fed for waveguide orthomode coupler 4 by square wave guide bottom surface feed port 9；Waveguide bend 10 narrow limit institute
Plane vertical with the sidewall place plane of waveguide orthomode coupler 4；
Waveguide bend tuning block 11 is cube structure, is close to the inner surface of the bending place of waveguide bend 10, curved ripple
Lead tuning block 11 bottom surface to be close at the bottom of the bottom surface of waveguide bend 10, a drift angle of tuning block 11 and of waveguide bend
Angle overlaps.
Horn radiator port 1 is to have certain thickness conductor sheet to connect the cube structure of composition；Loudspeaker
Radiator port 3, square wave guide sidewall feed port 6, square wave guide bottom surface feed port 9 are square end
Mouthful, height is 1mm.
Horn radiator sidewall 2, horn radiator feed port 3, the center pair of waveguide orthomode coupler 4
Line is claimed to overlap.
Waveguide orthomode coupler 4 is square cuboid waveguide for cross section；First tuning block 5 length and ripple
The square-section length of side leading orthomode coupler 4 is identical.
Waveguide power distributing network
As shown in Figure 6, waveguide power distributing network is formed by the cascade of multistage waveguide E face T-shaped structure, previous
The outfan of level waveguide E face T-shaped structure connects the input of rear stage waveguide E face T-shaped structure；
Waveguide E face T-shaped structure includes input waveguide 12, output waveguide 13, tuning structure 14；
Input waveguide 12 is connected with each other with output waveguide 13 with certain forms, and output waveguide 14 two ends are closed
Symmetrical in the centrage of input waveguide 12；
Tuning structure 14 is for being positioned at output waveguide 13 depression in the surface structure, and it is positioned at output waveguide 13 with defeated
Enter on the surface of waveguide 12 link position offside；
Every grade of waveguide E face T-shaped arrangement works is in main mould pattern；Described tuning structure 14 caves in for cube
Structure.
Input waveguide 12 and the interconnective form of output waveguide 13 are divided into three kinds:
A (), as it is shown on figure 3, input waveguide cube structure, input waveguide 12 is vertical with output waveguide 13
Connecting, and add tuning step 15 on the surface of output waveguide 13 port, tuning step 15 is positioned at tuning knot
The side, output waveguide 13 surface at structure 14 place；A length of wavelength of described tuning structure 14, a height of ten/
One wavelength, a width of output waveband width；A width of output waveband width of described tuning step 15 is high by about ten
/ mono-wavelength；
Being fixed by the height value of tuning step 15, then the size to tuning structure 14 carries out preferably,
The standing wave value of typical frequency in paying close attention to working frequency range, process is as shown in table 1.
Echo Rating change (VSWR) that table 1 tuning structure 3 size is corresponding
By table 1 it is found that the length of tuning structure 14 is about a wavelength, high about 1/10th wavelength
Time, return loss is optimal, therefore selects the tuning structure 14 of this size.
(b) as shown in Figure 4, when the limited space of practical application, it is impossible to carry out straight wave guide arrangement time,
Also need to waveguiding structure is carried out remodeling to a certain extent, the input waveguide of first order waveguide E face T-shaped knot
Having carried out bending process, two output waveguides have carried out bending process；The tuning structure of two-stage waveguide T-shaped knot
All at input waveguide homonymy, second level waveguide T-shaped knot has the lateral bending of certain angle due to input waveguide, can draw
Play power distribution unbalance, so adding another segment power distribution tuning structure, defeated to ensure four final roads
Go out constant amplitude homophase.
Input waveguide 12 is polymorphic structure, and its outer contour is connected by two sections of mutual circumscribed quarter circular arc
Composition；Add new adjustment structure 16 in output waveguide 13 with the link position of input waveguide 12 simultaneously；Institute
The length stating tuning structure 14 is about 1/2nd wavelength, high about 1/10th wavelength, described adjustment structure
A width of output waveband width of 16, high about 1/10th wavelength；
Being fixed by the height value of tuning structure 16, then the size to tuning structure 14 carries out preferably,
The standing wave value of typical frequency in paying close attention to working frequency range, process is as shown in table 2.
Echo Rating change (VSWR) that table 2 tuning structure 14 size is corresponding
By table 2 it is found that tuning structure 14 be about 1/2nd wavelength, high be about 1/10th ripples
Time long, return loss is optimal, therefore selects the tuning structure 14 of this size.
(c) as it is shown in figure 5, input waveguide trapezium structure, input waveguide 12 with non-perpendicular angle with defeated
Go out waveguide 13 and be connected with each other a width of output waveband width of described adjustment structure 16, high about 1/10th ripples
Long；The length of described adjustment structure 14 is about 1/20th wavelength, a width of output waveband width, and height is about two
/ 10th wavelength.
The present invention have high efficiency, high-gain, low section, across the feature of frequency band coverage property, operation principle
As follows:
Electromagnetic horn irradiator is made at main mould circular polarization state, and square wave guide orthomode coupler provides one two kinds
The space of orthogonal mode synthesis, is coupled into two kinds of orthogonal linear polarizations of square wave guide from sidewall waveguide and waveguide bend
Pattern (can synthesize circularly polarised wave) at this, and is radiate by bell mouth surface.Two-layer wave guide power up and down
Subnetwork covers reception and launches two frequency ranges, and when working in reception frequency range, upper and lower two-layer wave guide power divides
Network is respectively fed into two kinds of orthogonal modes of phase 90 degree, synthesizes circular polarisation and from loudspeaker in square wave guide
Irradiator is radiated free space；When working in transmitting frequency range, upper and lower two-layer wave guide power subnetwork is respectively
Feed-in phase bears two kinds of orthogonal modes of 90 degree, synthesizes circular polarisation and from loudspeaker radiation in square wave guide
Device is radiated free space；
Upper strata waveguide network can only in square wave guide by the linear polarization pattern that coupling aperture 6 is fed in square wave guide
Transmit to horn radiator direction, when transmitting to coupling aperture 9, another kind of orthogonal linear polarization can only be transmitted
The pattern that coupling aperture 6 transmission can be come in by the coupling aperture 9 of pattern is isolated.
The linear polarization pattern that lower floor's waveguide network is fed in square wave guide 4 by coupling aperture 9 is in square wave guide 4
Can only transmit to horn radiator direction, when transmitting to coupling aperture 6, another kind of orthogonal line can only be transmitted
The pattern that coupling aperture 9 transmission can be come in by the coupling aperture 6 of polarization mode is isolated.
Up and down the both of which of the phase 90 degree of two-layer wave guide power subnetwork input by submatrix rear end pair
Multiplexer and electric bridge provide, and duplexer and electric bridge are ripe device.
This aerial array can also be used for the field beyond Ka band satellite communication.When aerial array works in line
The when of polarization mode, square wave guide orthomode coupler does not carry out circular polarisation synthesis, and works in the most respectively
Two kinds of linear polarization patterns.Now, duplexer and electric bridge can omit, and the structure of antenna can simplify further.
It is left that the aperture efficiency Integrated Receiver of the antenna element in the present invention and two frequency ranges of transmitting can reach 85%
Right.The aperture efficiency Integrated Receiver of 8x8 submatrix and two frequency ranges of transmitting can reach about 80%.
The above, the detailed description of the invention that only present invention is optimal, but protection scope of the present invention not office
Being limited to this, any those familiar with the art, can be easily in the technical scope that the invention discloses
The change drawn or replacement, all should contain within protection scope of the present invention.
The content not being described in detail in description of the invention belongs to the known skill of professional and technical personnel in the field
Art.
Claims (7)
1. the panel antenna array of a Ka frequency range, it is characterised in that including: ground floor waveguide power distributes
Network, second layer waveguide power distributing network, horn radiator: wherein ground floor waveguide power distributing network
Form by the cascade of multiple waveguide E face T-shaped structures with second layer waveguide power distributing network；Horn radiator
Number corresponding with the quantity of waveguide E face T-shaped structure；Each waveguide E face T-shaped structure have two defeated
Going out end, horn radiator has two inputs；
Two waveguide inputs of horn radiator connect ground floor waveguide power distributing network and the second layer respectively
The output port of waveguide E face T-shaped structure in waveguide power distributing network；
Described horn radiator includes horn radiator port (1), horn radiator sidewall (2), loudspeaker spoke
Emitter feed port (3), waveguide orthomode coupler (4), the first tuning block (5), the feedback of square wave guide sidewall
Electricity port (6), sidewall waveguide (7), second tune block (8), square wave guide bottom surface feed port (9), curved
Waveguide (10), waveguide bend tuning block (11)；
Horn radiator port (1) is positioned at the leading portion of horn radiator sidewall (2)；Horn radiator feeds
One end of port (3) is connected with the rear end of horn radiator sidewall (2)；Horn radiator feed port (3)
The other end be connected with one end of waveguide orthomode coupler (4)；
First tuning block (5) is positioned at waveguide orthomode coupler (4)；It is close to the coupling of waveguide orthogonal mode
Inner surface to side and the waveguide of device (4) one end connected with horn radiator feed port (3) are orthogonal
The side wall inner surfaces of mode coupler (4)；
First tuning block (5) place waveguide orthomode coupler (4) sidewall to sidewall and square wave guide
One end of sidewall feed port (6) is connected；Waveguide orthomode coupler (4) and horn radiator feed end
One end to side with square wave guide bottom surface feed port (9) of the connected one end of mouth (3) is connected；
Sidewall waveguide (7) is connected with the other end of square wave guide sidewall feed port (6) and is used for passing through square wave guide
Sidewall feed port (6) is waveguide orthomode coupler (4) feed；Sidewall waveguide (7) broadside place
Plane is parallel to the sidewall place plane of waveguide orthomode coupler (4)；
Second tune block (8) is close to sidewall waveguide (7) and is connected with square wave guide sidewall feed port (6)
The inner surface to side of end and the inner surface to side of sidewall waveguide (7) input port；Second tune
Block (8) length is identical with the width edge length of straight wall waveguide (7)；
Waveguide bend (10) is bending waveguide；Waveguide bend (10) and square wave guide bottom surface feed port (9)
The other end be connected for by square wave guide bottom surface feed port (9) be waveguide orthomode coupler (4) feed；
The plane at place, waveguide bend (10) narrow limit is vertical with the sidewall place plane of waveguide orthomode coupler (4)；
Waveguide bend tuning block (11) is cube structure, is close to the inner surface of the bending place of waveguide bend (10),
The bottom surface of waveguide bend (10) is close in waveguide bend tuning block (11) bottom surface, a drift angle of tuning block (11) with
One base angle of waveguide bend overlaps.
The panel antenna array of a kind of Ka frequency range the most according to claim 1, it is characterised in that:
Described waveguide E face T-shaped structure includes input waveguide (12), output waveguide (13), tuning structure (14)；
Input waveguide (12) is connected with each other with output waveguide (13) with certain forms, and output waveguide (14)
Two ends are symmetrical about the centrage of input waveguide (12)；
Tuning structure (14) is for being positioned at output waveguide (13) depression in the surface structure, and it is positioned at output waveguide
(13) with on the surface of input waveguide (12) link position offside；
Every grade of waveguide E face T-shaped arrangement works is in main mould pattern；Described tuning structure (14) is cube
Sunk structure.
The panel antenna array of a kind of Ka frequency range the most according to claim 2, is further characterized in that:
Described input waveguide (12) and output waveguide (13) interconnective form are divided into three kinds:
A () described input waveguide cube structure, input waveguide (12) is vertical with output waveguide (13)
Connect, and add tuning step (15), tuning step (15) on the surface of output waveguide (13) port
It is positioned at output waveguide (13) side, surface at tuning structure (14) place；Described tuning structure (14)
A length of wavelength, a height of 1/10th wavelength, a width of output waveband width；Described tuning step 15 a width of
Output waveband width, high about 1/10th wavelength；
B () described input waveguide (12) is polymorphic structure, its outer contour is by two sections mutual circumscribed four
/ mono-circular sliding slopes composition；Link position in output waveguide (13) with input waveguide (12) adds simultaneously
Enter new adjustment structure (16)；The length of described tuning structure (14) is about 1/2nd wavelength, high about
/ 10th wavelength, a width of output waveband width of described adjustment structure (16), high about 1/10th ripples
Long；
C () described input waveguide trapezium structure, input waveguide (12) is with non-perpendicular angle and output wave
Lead (13) and be connected with each other a width of output waveband width of described adjustment structure (16), high by about 1/10th
Wavelength；The length of described adjustment structure (14) is about 1/20th wavelength, a width of output waveband width, height
It is about 1/20th wavelength.
The panel antenna array of a kind of Ka frequency range the most according to claim 3, it is characterised in that:
Multiple waveguide E face T in described ground floor waveguide power distributing network and second layer waveguide power distributing network
Shape structure can use input waveguide and any one waveguide E face T in three kinds of types of attachment of output waveguide
Shape structure；
Two waveguide inputs of horn radiator respectively with ground floor waveguide power distributing network, second layer ripple
Lead the mode that in power distributing network, the output port of waveguide E face T-shaped structure is attached as follows: first
The waveguide E face T-shaped of afterbody in layer waveguide power distributing network, second layer waveguide power distributing network
The output waveguide (13) of structure connects sidewall waveguide (7) and waveguide bend (10) input port respectively；Side
Wall waveguide (7) and waveguide bend (10) input port are as two waveguide inputs of horn radiator.
The panel antenna array of a kind of Ka frequency range the most according to claim 1, it is characterised in that:
Described horn radiator port (1) is to have certain thickness conductor sheet to connect the cube structure of composition；
Described horn radiator feed port (3), square wave guide sidewall feed port (6), square wave guide bottom surface feed end
Mouth (9) is square port, and height is 1mm.
The panel antenna array of a kind of Ka frequency range the most according to claim 1, it is characterised in that:
Described horn radiator sidewall (2), horn radiator feed port (3), waveguide orthomode coupler (4)
Centre symmetry line overlap.
The panel antenna array of a kind of Ka frequency range the most according to claim 1, it is characterised in that:
Described waveguide orthomode coupler (4) be cross section be square cuboid waveguide；First tuning block (5) is long
Spend identical with the square-section length of side of waveguide orthomode coupler (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412631.4A CN104201477B (en) | 2014-08-20 | A kind of panel antenna array of Ka frequency range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412631.4A CN104201477B (en) | 2014-08-20 | A kind of panel antenna array of Ka frequency range |
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| CN104201477A CN104201477A (en) | 2014-12-10 |
| CN104201477B true CN104201477B (en) | 2017-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429378A (en) * | 2019-07-30 | 2019-11-08 | 中国电子科技集团公司第三十八研究所 | A kind of double frequency Shared aperture Waveguide slot radiating guide, antenna array and design method |
| CN108321505B (en) * | 2017-12-25 | 2020-11-10 | 北京遥测技术研究所 | Flat array antenna for X frequency band |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321505B (en) * | 2017-12-25 | 2020-11-10 | 北京遥测技术研究所 | Flat array antenna for X frequency band |
| CN110429378A (en) * | 2019-07-30 | 2019-11-08 | 中国电子科技集团公司第三十八研究所 | A kind of double frequency Shared aperture Waveguide slot radiating guide, antenna array and design method |
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