CN107069189B - A kind of multiple frequency bands broadband dual polarization ridged horn antenna - Google Patents
A kind of multiple frequency bands broadband dual polarization ridged horn antenna Download PDFInfo
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- CN107069189B CN107069189B CN201710055954.6A CN201710055954A CN107069189B CN 107069189 B CN107069189 B CN 107069189B CN 201710055954 A CN201710055954 A CN 201710055954A CN 107069189 B CN107069189 B CN 107069189B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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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
- H01Q13/0275—Ridged horns
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The invention discloses a kind of multiple frequency bands broadband dual polarization ridged horn antennas, belong to field of antenna.The electromagnetic horn includes outer antennas part and center antenna part, and center antenna part is nested among outer antennas part, and the two antenna axial direction is overlapped；The outer antennas part includes the double ridge antennas of outer antennas wall and fourth officer periphery；The center antenna part includes center antenna wall and the double ridge antennas of two sub-centers.The present invention has bigger 3~39GHz of bandwidth of operation；Center antenna part design be located at outer antennas part among, and with outer antennas part antenna axial direction having the same, it is compact-sized；With flexile working method, center antenna part, outer antennas part is simultaneously operable to work independently.
Description
Technical field
The invention belongs to field of antenna, are related to a kind of ridged horn antenna.
Background technique
Broad-band antenna is important antenna technology developing direction, and dual polarized antenna is more than the single-polarized antenna scope of application
Extensively.Have become a mature technology according to the ridged horn antenna of wideband waveguide Theoretical Design, has at present using wider
Double-ridged horn antenna and quadruple ridged horn antenna, double-ridged horn antenna can produce a kind of radiation of polarization mode, quadruple ridged horn day
Line can produce the radiation of horizontal, vertical two kinds of polarization modes.But due to structures such as the wide and short-circuit back cavities of ridged horn antenna ridge
Limitation, the performance of existing ridged horn antenna still has certain limitation application is upper, comprising:
1) existing ridged horn Antenna Operation bandwidth is limited, cannot cover C, X, Ku, K, Ka frequency range simultaneously, is work belt
The more demanding electronic information design work of width is made troubles.Such as in electronic countermeasure field, existing radar chaff is set
For in order to cover above-mentioned working frequency range simultaneously, 2 working frequency range design interference antennas and mating feed equipment, servo is at least divided to set
It is standby etc., cause equipment scale and increased costs.
2) multiple ridged horn antenna combinations are in use, can not accomplish shared antenna axial direction, and be difficult to ensure high integration.Example
Shared antenna axial direction can just be accomplished by placing such as two ridged horn antennas only front and back, but can bring serious occlusion issue, and two
A antenna must assure that between the two when placed side by side to be had at regular intervals, otherwise can there are problems that electromagnetism mutual interference.
Summary of the invention
In order to solve in the application such as radar, communication, electronic countermeasure, emulation test system, to the shared antenna axis of radio-frequency antenna
To, wide-band, multipolarization, high integration require etc. technical problems, the invention proposes a kind of multiple frequency bands broadband dual polarizations to add ridge
Electromagnetic horn.
In order to solve the above-mentioned technical problem, technical scheme is as follows:
A kind of multiple frequency bands broadband dual polarization ridged horn antenna, including outer antennas part and center antenna part, center
Antenna part is nested among outer antennas part, and two antenna axial directions are overlapped；
The outer antennas part includes outer antennas wall, the double ridge antennas in fourth officer periphery, outer antennas short circuit chamber and four
A outer antennas coaxial connector；Every double ridge antenna bottom ends in secondary periphery connect an outer antennas short circuit chamber；Every double ridges in secondary periphery
Antenna includes ectoloph and interior ridge, and ectoloph is vertical with outer antennas wall to be connect, and interior ridge is connect with center antenna part；Horizontal direction
The two secondary double ridge antennas in periphery constitute horizontal polarization, and the double ridge antennas in the secondary periphery of the two of vertical direction constitute vertical polarization；Same polarization
The bottom of the two secondary double ridge antennas in periphery on direction is all connected with an outer antennas coaxial connector, wherein an outer antennas
The outer conductor of coaxial connector is fixed on the outer surface of outer antennas short circuit chamber, and the inner conductor of outer antennas coaxial connector is vertical
Across outer antennas short circuit cavity waveguide wall, the ectoloph of the double ridge antennas in periphery, it is connect with the interior ridge of peripheral double ridge antennas；In order to keep
Identical current feed phase, the outer conductor of another outer antennas coaxial connector are fixed on the outer surface of outer antennas short circuit chamber,
The inner conductor of outer antennas coaxial connector passes perpendicularly through the interior ridge of the wave guide wall of outer antennas short circuit chamber, the double ridge antennas in periphery
Afterwards, it is connect with the ectoloph of peripheral double ridge antennas.
The center antenna part include center antenna wall, the double ridge antenna of two sub-centers, center antenna short circuit chamber and in
Heart antenna coaxial connector；Center antenna wall is fixed on the interior ridge of the double ridge antennas in fourth officer periphery, and the double ridge antennas of two sub-centers are just
Friendship is placed in center antenna wall, and the double ridge antennas in the center of horizontal direction constitute horizontal polarization, the double ridge antennas in the center of vertical direction
Constitute vertical polarization；A pair of of ridge of the double ridge antennas of every sub-center is vertical with center antenna wall to be connect, and center antenna wall is extended
Part and the interior ridge of peripheral double ridge antennas are connected as one, and the bottom end of a pair of of ridge of the double ridge antennas of every sub-center connects a center
Antenna coaxial connector, the outer conductor of the center antenna coaxial connector are fixed on center antenna short circuit chamber outer surface, in
The inner conductor of heart antenna coaxial connector and the polarization direction of the double ridge antennas in center are consistent, and pass perpendicularly through the double ridge antennas in center
A ridge root after, and connect with another ridge.
Further, the interior ridge thickness of the double ridge antennas in periphery is gradually decrease to the ridge of the double ridge antennas in center by chamfering mode
Thickness, extend the part of center antenna wall with the ridge of the double ridge antennas in center and match connection.
Further, the interior ridge of the double ridge antennas in periphery extends one of the part of center antenna wall and the double ridge antennas in center
The intersection of ridge matching connection is smoothed using Spline Interpolation Method.
Further, the ectoloph of the double ridge antennas in the periphery and the root spacing of interior ridge are outer antennas short circuit chamber width
0.02~0.12 times, the width of ectoloph and interior ridge is 0.23~0.42 times of outer antennas short circuit cavity length.
Further, the root spacing of a pair of of ridge of the double ridge antennas of every sub-center is center antenna short circuit chamber base diameter
0.02~0.09 times, ridge width is 0.15~0.2 times of center antenna short circuit chamber base diameter.
Further, the outer antennas short circuit chamber is rectangular parallelepiped structure.
Further, the center antenna short circuit chamber is conical bores.
Further, the outer antennas wall is square opening diameter loudspeaker.
Further, the center antenna wall is circular aperture loudspeaker.
Further, the double ridge antenna coaxial connectors in the periphery are standardized using SMA, and center antenna coaxial connector is adopted
It is standardized with 2.92mm.
Invent it is achieved the utility model has the advantages that
1, present invention employs nesting type structure, center antenna is partially submerged among outer antennas part, with multiple frequencies
Section connecting method obtains bigger bandwidth of operation.Center antenna part working frequency range is 9~39GHz, the work of outer antennas part
Frequency range is 3~9GHz, and the two feeds the big bandwidth that can get 3~39GHz simultaneously.And the present invention may continue to be embedded in frequency range
Bigger bandwidth of operation is obtained among lower outer antennas.
2, the design of center antenna part is located among outer antennas part by the present invention, and has phase with outer antennas part
With antenna axial direction, the ridge of the double ridge antennas of ridge and center is integrally designed in the double ridge antennas in periphery, thus make entire antenna have compared with
High integrated level.
3, the present invention has flexile working method, and bandwidth of operation, polarization mode can be selected as needed.In
When heart antenna part, outer antennas part work at the same time, entire Antenna Operation bandwidth is 3~39GHz, has level, vertical two
Kind polarization mode；When center antenna part works independently, bandwidth of operation is 9~39GHz, has horizontal, vertical two kinds of work sides
Formula；When outer antennas part works independently, bandwidth of operation is 3~9GHz, has horizontal, vertical two kinds of working methods.
Detailed description of the invention
Fig. 1 is the front view of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 2 is the oblique 15 degree of views in front of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 3 is the left oblique 10 degree of views in front of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 4 is the rearview of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 5 is the right oblique 45 degree of views in dead astern of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 6 is the positive side perspective view of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 7 is the horizontal cross and partial enlargement diagram of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 8 is the vertical sectional view and partial enlargement diagram of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention；
Fig. 9 is the double ridge antenna ectoloph curvilinear equation coordinates in periphery of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention
It is schematic diagram；
Figure 10 is that ridge curvilinear equation is sat in the double ridge antennas in periphery of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention
Mark system schematic diagram；
Figure 11 is the double ridge antenna ridge curvilinear equation coordinates in center of multiple frequency bands broadband dual polarization ridged horn antenna of the present invention
It is schematic diagram；
Figure 12 is the standing-wave ratio schematic diagram of two kinds of the center antenna part polarization mode of the preferred embodiment of the present invention；
Figure 13 is the standing-wave ratio schematic diagram of two kinds of the outer antennas part polarization mode of the preferred embodiment of the present invention；
Figure 14 is H face directional diagram of the center antenna part work of the preferred embodiment of the present invention at 36.9GHz；
Figure 15 is H face directional diagram of the outer antennas part work of the preferred embodiment of the present invention at 8.3GHz.
Fig. 1 is into Fig. 8: 1 is outer antennas wall；2 be the double ridge antennas in periphery；3 be short-circuit chamber；4 coaxially connect for outer antennas
Connect device；5 be center antenna wall；Double ridge antennas centered on 6；7 be short-circuit chamber；8 be center antenna coaxial connector；21 be ectoloph；
22 be interior ridge.
Specific embodiment mode
Invention is further described in detail with reference to the accompanying drawings and examples.
A kind of multiple frequency bands broadband dual polarization ridged horn antenna provided in an embodiment of the present invention is a kind of compound loudspeaker day
Line, including outer antennas part and center antenna part, center antenna part are nested among outer antennas part, two antennas
It is axially coincident.
As shown in FIG. 1 to 3, the outer antennas part include outer antennas wall 1, it is the double ridge antennas 2 in fourth officer periphery, outer
Enclose antenna short circuit chamber 3 and four outer antennas coaxial connectors 4；Every double 2 bottom ends of ridge antenna in secondary periphery connect an outer antennas
Short-circuit chamber 3；Every double ridge antennas 2 in secondary periphery include ectoloph 21 and interior ridge 22, and ectoloph 21 is vertical with outer antennas wall 1 to be connect, interior ridge
22 connect with center antenna part；The double ridge antennas in the secondary periphery of the two of horizontal direction constitute horizontal polarization, and the two of vertical direction are secondary outer
It encloses double ridge antennas and constitutes vertical polarization；The bottom of the two secondary double ridge antennas in periphery in same polarization direction is all connected with a peripheral day
Line coaxial connector 4, wherein the outer conductor of an outer antennas coaxial connector 4 is fixed on the appearance of outer antennas short circuit chamber 3
Face, the inner conductor of outer antennas coaxial connector 4 pass perpendicularly through 3 wave guide wall of outer antennas short circuit chamber, the double ridge antennas in periphery it is outer
Ridge 21 is connect with the interior ridge 22 of peripheral double ridge antennas；In order to keep identical current feed phase, another outer antennas is coaxially connected
The outer conductor of device 4 is fixed on the outer surface of outer antennas short circuit chamber 3, and the inner conductor of outer antennas coaxial connector 4 passes perpendicularly through
After the wave guide wall of outer antennas short circuit chamber 3, the interior ridge 22 of periphery pair ridge antennas 2, it is connect with the ectoloph 21 of peripheral double ridge antennas 2.
The outer antennas wall 1 is square opening diameter loudspeaker.
The ectoloph 21 and interior ridge 22 include linearity range and non-linear section, and ectoloph 21 and interior 22 root spacing of ridge are outer
The width of 0.02~0.12 times for enclosing 3 width of antenna short circuit chamber, ectoloph 21 and interior ridge 22 is 3 length of outer antennas short circuit chamber
0.23~0.42 times.
The outer antennas short circuit chamber 3 is cuboid cavity, as the matched load of peripheral double ridge antennas, for changing
The radiation efficiency of the kind double ridge antennas in periphery.
As shown in Figure 4, Figure 5, the double ridge antenna coaxial connectors 4 in the periphery are standardized using SMA, horizontal direction 2, are hung down
Histogram is the electric feed signal input interface of the double ridge antennas in fourth officer periphery to 2.
As shown in FIG. 1 to FIG. 3, Fig. 7, Fig. 8, the center antenna part includes center antenna wall 5, the double ridges of two sub-centers
Antenna 6, center antenna short circuit chamber 7 and center antenna coaxial connector 8；Center antenna wall 5 is fixed on the double ridge antennas 2 in fourth officer periphery
Interior ridge 22 on, the double ridge antennas 6 of two sub-centers are orthogonally placed in center antenna wall 5, and the double ridge antennas in the center of horizontal direction are constituted
Horizontal polarization, the double ridge antennas in the center of vertical direction constitute vertical polarization；A pair of of ridge of the double ridge antennas 6 of every sub-center and center day
Line wall 5 vertically connects, and the interior ridge 22 of the part and peripheral double ridge antennas 2 of extending center antenna wall 5 is connected as one；In every pair
The bottom end of a pair of of ridge of the double ridge antennas 6 of the heart connects a center antenna coaxial connector 8, the center antenna coaxial connector
8 outer conductor is fixed on 7 outer surface of center antenna short circuit chamber, the double ridge days of the inner conductor of center antenna coaxial connector 8 and center
The polarization direction of line is consistent, and behind the root for passing perpendicularly through a ridge of the double ridge antennas in center, is connect with another ridge.
As shown in fig. 6, the center antenna wall 5 is circular aperture loudspeaker, center antenna wall 5 is fixed on the 4 secondary double ridges in periphery
On the interior ridge 22 of antenna 2.
Referring to shown in the partial enlarged view of Fig. 7 and Fig. 8, the center antenna short circuit chamber 7 is conical bores, as in
The matched load of heart antenna part, for improving the radiation efficiency of center antenna part.
Referring to shown in Fig. 7 and Fig. 8, the center antenna coaxial connector 8 is standardized using 2.92mm, and quantity is 2, is
The electric feed signal input interface of the double ridge antennas of 2 sub-centers；The coaxial connector of horizontal polarization directions is located at vertical polarization directions
Coaxial connector rear.
The ridge of the double ridge antennas 6 in the center includes linearity range and non-linear section, the double ridge antennas 6 of every sub-center
The root spacing of a pair of of ridge is 0.02~0.09 times of 7 base diameter of center antenna short circuit chamber, and ridge width is center antenna short circuit chamber 7
0.15~0.2 times of base diameter.
The connection type of one ridge of the double ridge antennas 6 of interior ridge 22 and center of peripheral double ridge antennas 2: the double ridge antennas 2 in periphery
Interior ridge 22 be gradually decrease to by chamfering mode the double ridge antennas 6 in center ridge thickness, extend the part of center antenna wall 5
Connection is matched with the ridge of the double ridge antennas 6 in center.The interior ridge 22 of peripheral double ridge antennas 2 extends the part of center antenna wall 5 in
The intersection of the ridge matching connection of the double ridge antennas 6 of the heart, is smoothed using Spline Interpolation Method.
On the longitudal section of multiple frequency bands broadband dual polarization ridged horn antenna, using center antenna part root as coordinate origin
Establish y-z coordinate system.
Fig. 9 shows ridge curve in peripheral double ridge antennas, the double ridge antenna ectoloph linearity range curvilinear equations in periphery:
Constraint condition: B1< z < L1
In formula:
B1--- ectoloph linearity range origin endpoint z-axis coordinate；
H1--- ectoloph linearity range distal point is at a distance from peripheral double ridge antenna axis；
D1--- the double ridge antenna axis of ectoloph linearity range origin endpoint and periphery away from；
L1--- ectoloph linearity range distal point z-axis coordinate；
W --- the array element spacing of outer antennas part binary arrays；
Peripheral double ridge antenna ectoloph non-linear section curvilinear equations:
Constraint condition: L1< z < P1
In formula:
α1--- ectoloph non-linear section equation index coefficient；
P1--- ectoloph non-linear section distal point z-axis coordinate；
K1--- a curve coefficients in ectoloph non-linear section.
Figure 10 shows ridge curve in peripheral double ridge antennas, ridge linearity range curvilinear equation in the double ridge antennas in periphery:
Constraint condition: B2< z < L2
In formula:
B2--- interior ridge linearity range origin endpoint z-axis coordinate；
H2--- interior ridge linearity range distal point is at a distance from peripheral double ridge antenna axis；
D2--- interior ridge linearity range origin endpoint is at a distance from peripheral double ridge antenna axis；
L2--- interior ridge linearity range distal point z-axis coordinate；
W --- the array element spacing of outer antennas part binary arrays.
4) ridge non-linear section equation in the double ridge antennas in periphery:
Ridge non-linear section is obtained by exponential curve and a curve combining in peripheral double ridge antennas, and equation is as follows:
Constraint condition L2< z < P2
In formula:
α2--- interior ridge non-linear section equation index coefficient；
P2--- interior ridge non-linear section distal point z-axis coordinate；
K2--- a curve coefficients in interior ridge non-linear section.
Figure 11 shows the double ridge antenna ridge curves in center, the double ridge antenna ridge linearity range curvilinear equations in center:
0 < z < L of constraint condition
In formula:
The double ridge antenna ridge linearity range distal points in H --- center are at a distance from z-axis；
The double ridge antenna ridge linearity range origin endpoints in D --- center are at a distance from z-axis；
The double ridge antenna ridge linearity range distal point z-axis coordinates in L --- center；
6) the double ridge antenna ridge non-linear section curvilinear equations in center:
Constraint condition L < z < P
In formula:
The double ridge antenna ridge non-linear section equation index coefficients in α --- center；
The double ridge antenna ridge non-linear section distal point z-axis coordinates in P --- center.
A kind of working principle of multiple frequency bands broadband dual polarization ridged horn antenna proposed by the present invention is as follows:
A kind of multiple frequency bands broadband dual polarization ridged horn antenna provided by the invention has multiple working frequency range and big work
Make bandwidth, can according to frequency range demand be used alone outer antennas part, or be used alone center antenna part, or both simultaneously
It uses.Outer antennas part working frequency range is 3~9GHz, and center antenna part working frequency range is 9~39GHz, and the two makes simultaneously
It can reach 3~39GHz with working frequency range.
A kind of multiple frequency bands broadband dual polarization ridged horn antenna provided by the invention has horizontal, vertical two kinds of polarization sides
Formula: can according to polarization demand be used alone horizontal polarization, or be used alone vertical polarization, or both use simultaneously.Fourth officer periphery
In double ridge antennas, secondary the two of horizontal direction arrangement are horizontal polarization, and secondary the two of vertical direction arrangement are vertical polarization；Two sub-centers
In double ridge antennas, a pair is horizontal polarization, and one is secondary for vertical polarization.When the polarization work of outer antennas part of horizontal, reply is horizontal
The secondary outer antennas coaxial connector in the 2 of direction arrangement is fed simultaneously, and feed amplitude and phase are identical；Outer antennas vertical polarization work
When making, 2 secondary outer antennas coaxial connectors of corresponding vertical direction arrangement are fed simultaneously, and feed amplitude and phase are identical；Center
When antenna part horizontal polarization works, the corresponding coaxial connector of the double ridge antennas in horizontal polarization center is fed；Center antenna portion
When dividing vertical polarization work, the corresponding coaxial connector of the double ridge antennas of vertical polarization is fed.
A kind of antenna axial direction of each frequency range of multiple frequency bands broadband dual polarization ridged horn antenna provided by the invention is overlapped: periphery
Antenna part is array antenna, including a horizontal direction binary arrays and a vertical direction binary arrays, horizontal direction binary arrays
It is made of the two secondary double ridge antennas in periphery of horizontal direction arrangement, vertical direction binary arrays are by the two double ridges in secondary periphery of vertical direction arrangement
Antenna is constituted, and the electric axis of horizontal direction binary arrays and the electric axis of vertical direction binary arrays are overlapped；Center antenna part includes two secondary
The double ridge antennas in center, are equivalent to a quadruple ridged horn antenna, electric axis and outer antennas part of horizontal direction binary arrays, Vertical Square
It is overlapped to the electric axis of binary arrays.
In a preferred embodiment of the invention, the bottom size of outer antennas wall 1 is 147mm (length) × 147mm
(width) × 220mm (height)；Outer antennas short circuit chamber 3 is rectangular parallelepiped structure, having a size of 30mm (length) × 22mm (width) × 15mm
(depth)；Outer antennas coaxial connector 4 is SMA specification, and quantity is 4.The bottom radius 17.5mm of center antenna wall 5 is high
100mm；Center antenna short circuit chamber 7 is conical bores, cone height 5.2mm, bottom radius 5.2mm；Center antenna is same
Mandrel connector 8 is 2.92mm specification, and quantity is 2.
Peripheral double ridge Antenna Designs:
Peripheral double ridge antenna ectoloph parameters: the ectoloph linearity range origin endpoint z-axis coordinate of the double ridge antennas in periphery takes -59mm,
Ectoloph linearity range distal point takes 2mm, the double ridge antennas of ectoloph linearity range origin endpoint and periphery at a distance from peripheral double ridge antenna axis
The distance of axis takes 0.85mm, and ectoloph linearity range distal point z-axis coordinate takes 16mm, and the array element spacing of outer antennas part binary arrays takes
60mm, according to the double ridge antenna ectoloph linearity range curvilinear equations in peripheral double ridge antenna ectoloph linearity range curvilinear equation designs periphery；Together
When ectoloph non-linear section equation index coefficient take 0.02, ectoloph non-linear section distal point z-axis coordinate takes 142mm, and ectoloph is non-linear
A curve coefficients take 0.005 in section, according to the double ridge antennas in peripheral double ridge antenna ectoloph non-linear section curvilinear equation designs periphery
Ectoloph non-linear section.
Ridge parameter in peripheral double ridge antennas: ridge linearity range origin endpoint z-axis coordinate takes -59mm in the double ridge antennas in periphery, interior
Ridge linearity range distal point takes 2mm, the double ridge antenna axis of interior ridge linearity range origin endpoint and periphery at a distance from peripheral double ridge antenna axis
Distance take 0.85mm, interior ridge linearity range distal point z-axis coordinate takes 22mm, and the array element spacing of outer antennas part binary arrays takes
60mm designs ridge linearity range in the double ridge antennas in periphery according to ridge linearity range curvilinear equation in peripheral double ridge antennas；Interior ridge is non-linear
Duan Fangcheng index coefficient takes 0.014, and interior ridge non-linear section distal point z-axis coordinate takes 108mm, a curve in interior ridge non-linear section
Coefficient takes 0.005, designs ridge non-linear section in the double ridge antennas in periphery according to ridge non-linear section equation in peripheral double ridge antennas.
The ectoloph 21 of peripheral double ridge antennas 2 and the root spacing 2mm of interior ridge 22, ectoloph is with a thickness of 10mm, the double ridge days in periphery
The interior ridge 22 of line 2 is with a thickness of 10mm.
The double ridge antenna part designs in center:
The double ridge antenna ridge linearity range parameters in center:
The double ridge antenna ridge linearity range distal points in center take 2mm at a distance from z-axis；The double ridge antenna ridge linearity range initial ends in center
Point takes 0.25mm at a distance from z-axis, and the double ridge antenna ridge linearity range distal point z-axis coordinates in center take 72mm, according to the double ridge days in center
The double ridge antenna ridge linearity ranges in line ridge linearity range curvilinear equation design centre.
The double ridge antenna ridge non-linear section parameters in center:
The double ridge antenna ridge linearity range distal points in center take 2mm, the double ridge antenna ridge linearity range initial ends in center at a distance from z-axis
Point takes 0.25mm at a distance from z-axis, and the double ridge antenna ridge linearity range distal point z-axis coordinates in center take 72mm, according to the double ridge days in center
The double ridge antenna ridge linearity ranges in line ridge linearity range curvilinear equation design centre.
The double dorsal root portion spacing 0.25mm, ridge thickness 1.6mm of the double ridge antennas 6 in center.
Figure 12 be the preferred embodiment of the present invention center antenna part 9-39Ghz under antenna standing wave ratio schematic diagram, abscissa
Indicate that the port main frequency of center antenna part, ordinate indicate the port standing-wave ratio of center antenna part, solid line indicates water
Mean pole port standing-wave ratio, dotted line indicate vertical port standing-wave ratio.As seen from the figure, under the present embodiment configuration, inventive antenna
It is whole that there is good standing-wave ratio bandwidth, antenna and free space matched well can be made at 9GHz~39GHz.
Figure 13 is outer antennas part work standing-wave ratio schematic diagram at 3GHz~9GHz of the preferred embodiment of the present invention, horizontal
The port main frequency of coordinate representation outer antennas part, ordinate indicate the port standing-wave ratio of outer antennas part.It can by figure
Know, under the present embodiment configuration, inventive antenna Integral low-frequency section outer antennas part has good standing-wave ratio bandwidth, can be with
Make antenna and free space matched well at 3GHz~9GHz.
Figure 14 is H face directional diagram of the center antenna part work of the preferred embodiment of the present invention at 36.9GHz, abscissa
Indicate that the far field angle coordinate on the face H of center antenna part, ordinate indicate the gain of center antenna part.As seen from the figure, In
Under the present embodiment configuration, high band center antenna fractionated gain reaches 16.2dB, and 3dB beam angle reaches 18.8 degree, secondary lobe electricity
It puts down as -22dB, inventive antenna integrally has good radiation characteristic.
Figure 15 is H face directional diagram of the outer antennas part work of the preferred embodiment of the present invention at 8.3GHz, abscissa
Indicate that the far field angle coordinate on the face H of outer antennas part, ordinate indicate the gain of outer antennas part.As seen from the figure, In
Under the present embodiment configuration, serious wave does not occur for the influence of the non-acceptor center antenna part of the antenna pattern of outer antennas part
Valve division, gain reach 18.7dB, and 3dB beam angle reaches 17.3 degree, and sidelobe level is -15dB, and inventive antenna integrally has
There is good radiation characteristic.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, In
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to institute of the present invention
The scope of patent protection that claims of submission determine.In conclusion the content of the present specification should not be understood as to of the invention
Limitation.
Claims (10)
1. a kind of multiple frequency bands broadband dual polarization ridged horn antenna, which is characterized in that including outer antennas part and center antenna
Part, center antenna part are nested among outer antennas part, and two antenna axial directions are overlapped；
The outer antennas part includes outer antennas wall (1), fourth officer periphery double ridge antennas (2), outer antennas short circuit chamber (3)
With four outer antennas coaxial connectors (4)；Every double ridge antenna (2) bottom ends in secondary periphery connect an outer antennas short circuit chamber (3)；
Every double ridge antennas (2) in secondary periphery include ectoloph (21) and interior ridge (22), and ectoloph (21) is vertical with outer antennas wall (1) to be connect, interior
Ridge (22) is connect with center antenna part；The double ridge antennas composition horizontal polarizations in the secondary periphery of the two of horizontal direction, the two of vertical direction
The secondary double ridge antennas in periphery constitute vertical polarization；The bottom of the two secondary double ridge antennas in periphery in same polarization direction respectively connects outside one
Enclose antenna coaxial connector (4), wherein the outer conductor of an outer antennas coaxial connector (4) is fixed on outer antennas short circuit
The outer surface of chamber (3), the inner conductor of outer antennas coaxial connector (4) pass perpendicularly through outer antennas short circuit chamber (3) wave guide wall, outer
The ectoloph (21) for enclosing double ridge antennas is connect with the interior ridge (22) of peripheral double ridge antennas；It is another in order to keep identical current feed phase
The outer conductor of a outer antennas coaxial connector (4) is fixed on the outer surface of outer antennas short circuit chamber (3), and outer antennas coaxially connects
Connect device (4) inner conductor pass perpendicularly through the interior ridges (22) of the wave guide wall of outer antennas short circuit chamber (3), the double ridge antennas (2) in periphery after,
It is connect with the ectoloph (21) of peripheral double ridge antennas (2)；
The center antenna part includes center antenna wall (5), two sub-centers double ridge antennas (6), center antenna short circuit chamber (7)
With center antenna coaxial connector (8)；Center antenna wall (5) is fixed on the interior ridge (22) of the double ridge antennas (2) in fourth officer periphery, and two
The double ridge antennas (6) of sub-center are orthogonally placed in center antenna wall (5), and the double ridge antennas in the center of horizontal direction constitute horizontal polarization,
The double ridge antennas in the center of vertical direction constitute vertical polarization；A pair of of ridge of the double ridge antennas (6) of every sub-center and center antenna wall (5)
The interior ridge (22) of vertical connection, the part and peripheral double ridge antennas (2) of extending center antenna wall (5) is connected as one, every pair
The bottom end of a pair of of ridge of the double ridge antennas (6) in center connects a center antenna coaxial connector (8), and the center antenna is coaxial
The outer conductor of connector (8) is fixed on center antenna short circuit chamber (7) outer surface, the inner conductor of center antenna coaxial connector (8)
It is consistent with the polarization direction of the double ridge antennas in center, it is and another behind the root for passing perpendicularly through a ridge of the double ridge antennas in center
A ridge connection.
2. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as described in claim 1, which is characterized in that the double ridge days in periphery
Interior ridge (22) thickness of line (2) is gradually decrease to the thickness of the ridge of the double ridge antennas (6) in center by chamfering mode, extends center
The part of antenna wall (5) matches connection with the ridge of the double ridge antennas (6) in center.
3. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed in claim 2, which is characterized in that the double ridge days in periphery
The part that the interior ridge (22) of line (2) extends center antenna wall (5) matches the friendship of connection with a ridge of the double ridge antennas (6) in center
It is smoothed at boundary using Spline Interpolation Method.
4. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed any one in claims 1 to 3, feature exist
In the ectoloph (21) of the double ridge antennas (2) in the periphery and the root spacing of interior ridge (22) are outer antennas short circuit chamber (3) width
0.02~0.12 times, the width of ectoloph (21) and interior ridge (22) is 0.23~0.42 times of outer antennas short circuit chamber (3) length.
5. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed any one in claims 1 to 3, feature exist
In 0.02 that the root spacing of a pair of of ridge of the double ridge antennas (6) of, every sub-center is center antenna short circuit chamber (7) base diameter~
0.09 times, ridge width is 0.15~0.2 times of center antenna short circuit chamber (7) base diameter.
6. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed in claim 4, which is characterized in that the periphery
Antenna short circuit chamber (3) is rectangular parallelepiped structure.
7. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed in claim 5, which is characterized in that the center
Antenna short circuit chamber (7) is conical bores.
8. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed any one in claims 1 to 3, feature exist
In the outer antennas wall (1) is square opening diameter loudspeaker.
9. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed any one in claims 1 to 3, feature exist
In the center antenna wall (5) is circular aperture loudspeaker.
10. a kind of multiple frequency bands broadband dual polarization ridged horn antenna as claimed any one in claims 1 to 3, feature exist
In the double ridge antenna coaxial connectors (4) in the periphery are standardized using SMA, and center antenna coaxial connector (8) uses 2.92mm
Specification.
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| CN201710055954.6A CN107069189B (en) | 2017-01-20 | 2017-01-20 | A kind of multiple frequency bands broadband dual polarization ridged horn antenna |
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| CN107069189B true CN107069189B (en) | 2019-10-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020124952A1 (en) * | 2018-12-20 | 2020-06-25 | 胡南 | Multiple polarization loudspeaker antenna employing electrically-controlled switching technique |
| CN109449600B (en) * | 2018-12-20 | 2024-07-23 | 胡南 | Electric control switching multi-polarization horn antenna |
| CN109755750B (en) * | 2019-03-08 | 2020-10-20 | 北京航空航天大学 | Dual-polarized feed source for feeding of broadband ridge-added orthogonal mode converter |
| CN111224229B (en) * | 2020-01-15 | 2021-04-06 | 浙江大学 | Satellite array antenna based on mirror image subarray |
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| US8248321B2 (en) * | 2009-09-01 | 2012-08-21 | Raytheon Company | Broadband/multi-band horn antenna with compact integrated feed |
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