CN208923364U - A kind of trapezoidal wave guide cavity seat electromagnetic horn - Google Patents
A kind of trapezoidal wave guide cavity seat electromagnetic horn Download PDFInfo
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- CN208923364U CN208923364U CN201821548020.2U CN201821548020U CN208923364U CN 208923364 U CN208923364 U CN 208923364U CN 201821548020 U CN201821548020 U CN 201821548020U CN 208923364 U CN208923364 U CN 208923364U
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Abstract
The utility model discloses a kind of trapezoidal wave guide cavity seat electromagnetic horns, comprising: waveguide cavity and horn structure；The outer wall of the waveguide cavity is the trapezoidal irregular shape that composition is connected with rectangle, one end of the diffusing opening connection rectangle outer wall of trapezium-shaped outer wall, the other end connection horn structure of rectangle outer wall；By using the trapezoidal wave guide cavity seat electromagnetic horn of the utility model, so that the circular array volume of composition is smaller, weight is lighter, expands the application range of antenna, especially applying can be such that its load substantially reduces when on aircraft, guided missile and satellite, and remarkable in economical benefits improves；The waveguide cavity performance of electromagnetic horn depends primarily on inner wall as a result, little with outer wall shape relation simultaneously, therefore the performance of electromagnetic horn is unaffected, ensure that the normal work of electromagnetic horn.
Description
Technical field
The utility model belongs to frequency microwave technical field, and in particular to a kind of trapezoidal wave guide cavity seat electromagnetic horn.
Background technique
Electromagnetic horn is a kind of widely used microwave antenna, and irradiation structure is made of the waveguide gradually opened, it has
Have the advantages that structure is simple, power capacity is big, high gain, is largely used as canonical measure antenna in microwave measurement system.
The citation form of electromagnetic horn is that the opening face of rectangular waveguide and circular waveguide is gradually extended and is formed, due to being
Waveguide openings face is gradually expanded, and improves waveguide and the matching of free space, so that the reflection coefficient in waveguide is small, i.e. waveguide
Most energy of middle transmission are gone out by loudspeaker radiation, the energy very little of reflection；But the volume of existing electromagnetic horn is greatly, again
Measure problem heavier and that group battle array is more difficult.
Utility model content
There are volumes to overcome existing electromagnetic horn big, heavier-weight and the more difficult technological deficiency of group battle array, the utility model
Disclose a kind of trapezoidal wave guide cavity seat electromagnetic horn.
Technical solution adopted by the utility model to solve its technical problems is a kind of trapezoidal wave guide cavity seat electromagnetic horn, packets
It includes: waveguide cavity and horn structure；The outer wall of the waveguide cavity is the trapezoidal irregular shape that composition is connected with rectangle, trapezium-shaped outer wall
Diffusing opening connection rectangle outer wall one end, the other end of rectangle outer wall connects horn structure.
Preferably, the horn structure includes: horn bulb and special-shaped epimere, and horn bulb is connect with waveguide cavity, described
The center line of two opposites of horn bulb is connected separately with anisotropic epimere, and the curvature portion of two anisotropic epimeres is opposite.
Preferably, other two opposite of the horn bulb is respectively equipped with multiple metal grizzly bars, metal grizzly bar and loudspeaker
The plane formed between the plane and metal grizzly bar of shell composition is hollow shape.
Preferably, the horn bulb is to be detachably connected with waveguide cavity.
Preferably, the waveguide cavity bottom connects the transverse slat of L-shaped support plate, and the riser of support plate is equipped with screw hole.
Preferably, the screw hole is symmetrically arranged four screw holes.
The beneficial effects of the utility model are: by using the trapezoidal wave guide cavity seat electromagnetic horn of the utility model, so that
The circular array volume of composition is smaller, and weight is lighter, expands the application range of antenna, especially applies in aircraft, guided missile and defends
Its load can be made substantially to reduce when on star, remarkable in economical benefits improves；The waveguide cavity performance of electromagnetic horn mainly depends on simultaneously
It is in inner wall as a result, little with outer wall shape relation, therefore the performance of electromagnetic horn is unaffected, ensure that the normal of electromagnetic horn
Work.
Detailed description of the invention
Fig. 1 is a kind of specific embodiment structural schematic diagram of the utility model.
Fig. 2 is the gain emulation of the circular antenna array formed using the trapezoidal wave guide cavity seat electromagnetic horn of the utility model
Figure.
Fig. 3 is the gain analogous diagram using the circular antenna array of rectangular wave guide cavity seat electromagnetic horn composition.
Appended drawing reference: 1- waveguide cavity, 2- horn bulb, 3- abnormity epimere, 4- metal grizzly bar, 5- support plate, 6- screw hole.
Specific embodiment
More detailed description is done to the embodiments of the present invention below in conjunction with attached drawing and appended drawing reference, makes to be familiar with ability
The technology people in domain can implement accordingly after studying this specification carefully.It should be appreciated that specific embodiment described herein is only to solve
The utility model is released, is not used to limit the utility model.
A kind of trapezoidal wave guide cavity seat electromagnetic horn, comprising: waveguide cavity 1 and horn structure；The outer wall of the waveguide cavity 1 is ladder
Shape connects the irregular shape of composition, one end of the diffusing opening connection rectangle outer wall of trapezium-shaped outer wall, rectangle outer wall with rectangle
The other end connect horn structure；
The double-ridged horn antenna array of direction-finding station is used for it is found that a kind of use by application number CN201720244488.1
In the double-ridged horn antenna array of direction-finding station, including eight double-ridged horn antennas, eight L-type erection supports and a circle
Bearing soleplate, eight double-ridged horn antenna bores face outwardly, and successively the geometry center of circle around round bearing soleplate is every 45 °
It puts, the bore face of eight double-ridged horn antennas forms the equilateral octagon of a concyclic heart；The double-ridged horn antenna includes
Rectangular waveguide section and loudspeaker section in rectangle vertebral body structure；
By it is above-mentioned it is found that existing circular antenna array be made of eight electromagnetic horns and waveguide end be it is rectangular-shaped, that is, adopt
With rectangular wave guide cavity seat, circular antenna array directive electromagnetic wave signal convenient for receiving；
Figure of description 2 is the circular antenna array formed using the trapezoidal wave guide cavity seat electromagnetic horn of the utility model
Gain analogous diagram；Figure of description 3 is that the gain of the circular antenna array formed using rectangular wave guide cavity seat electromagnetic horn is emulated
Figure；
By Figure of description 2 and the comparison of Figure of description 3 it is found that the circle formed using trapezoidal wave guide cavity seat electromagnetic horn
The diameter of aerial array is smaller than the diameter for the circular antenna array that rectangular wave guide cavity seat electromagnetic horn forms, therefore uses trapezoidal wave
The volume of the circular array of guide cavity seat electromagnetic horn composition is smaller, and since volume is smaller, weight is lighter, so that antenna is answered
More extensive with range, especially applying can be such that its load substantially reduces when on aircraft, guided missile and satellite, remarkable in economical benefits
It improves；The waveguide cavity performance of electromagnetic horn depends primarily on interior wall construction simultaneously, little with outer wall shape relation, therefore loudspeaker day
The performance of line is unaffected, ensure that the normal work of electromagnetic horn.
The horn structure includes: horn bulb 2 and special-shaped epimere 3, and horn bulb 2 is connect with waveguide cavity 1, the loudspeaker
The center line of two opposites of shell 2 is connected separately with anisotropic epimere 3, and the curvature portion of two anisotropic epimeres 3 is opposite；Specifically,
The top of the small side connection waveguide cavity 1 of the bore of horn bulb 2, by using double ridge structures that two anisotropic epimeres 3 form,
Due to the effect of capacity effect between its ridge, the cutoff frequency of main mould TE10 mode is cut than the TE10 mode of conventional horn antenna
Only frequency reduces very much, and the cutoff frequency of its first rank higher mode TE20 mode also can be slightly elevated, so its single mode is opposite
Bandwidth of operation can be broadened to several octaves；Simultaneously as plus the effect of ridge can reduce its characteristic impedance.
Other two opposite of the horn bulb 2 is respectively equipped with multiple metal grizzly bars 4, metal grizzly bar 4 and horn bulb 2
The plane formed between the plane and metal grizzly bar 4 of composition is hollow shape；Specifically, metal grizzly bar 4 and horn bulb 2 up and down
The plane formed between the plane and metal grizzly bar and metal grizzly bar of side composition is hollow shape；By the way that metal grizzly bar is arranged, make
Good low frequency characteristic can be possessed by obtaining antenna, and obtain good impedance matching and radiation characteristic.
The horn bulb 2 is to be detachably connected with waveguide cavity 1；Horn bulb 2 and waveguide are convenient in the detachable installation
The installation and maintenance management of chamber 1.
1 bottom of waveguide cavity connects the transverse slat of L-shaped support plate 5, and the riser of support plate 5 is equipped with screw hole 6；The L
The support plate 5 of shape has structure simple, and assembly is easy and the good characteristic of high reliablity.
The screw hole 6 is symmetrically arranged four screw holes；The company of waveguide cavity 1 is improved by symmetrically arranged four screws
Connect stability.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (6)
1. a kind of trapezoidal wave guide cavity seat electromagnetic horn, it is characterised in that: include: waveguide cavity (1) and horn structure；The waveguide cavity
(1) outer wall is the trapezoidal irregular shape that composition is connected with rectangle, and the diffusing opening of trapezium-shaped outer wall connects the one of rectangle outer wall
The other end at end, rectangle outer wall connects horn structure.
2. a kind of trapezoidal wave guide cavity seat electromagnetic horn as described in claim 1, it is characterised in that: the horn structure includes:
Horn bulb (2) and special-shaped epimere (3), horn bulb (2) are connect with waveguide cavity (1), two opposites of the horn bulb (2)
Center line be connected separately with special-shaped epimere (3), the curvature portion of two special-shaped epimeres (3) is opposite.
3. a kind of trapezoidal wave guide cavity seat electromagnetic horn as claimed in claim 2, it is characterised in that: the horn bulb (2)
Other two opposite is respectively equipped with multiple metal grizzly bars (4), the plane and metal of metal grizzly bar (4) and horn bulb (2) composition
The plane formed between grizzly bar (4) is hollow shape.
4. a kind of trapezoidal wave guide cavity seat electromagnetic horn as claimed in claim 2, it is characterised in that: the horn bulb (2) with
Waveguide cavity (1) is to be detachably connected.
5. a kind of trapezoidal wave guide cavity seat electromagnetic horn as claimed in claim 4, it is characterised in that: waveguide cavity (1) bottom
The transverse slat of L-shaped support plate (5) is connected, the riser of support plate (5) is equipped with screw hole (6).
6. a kind of trapezoidal wave guide cavity seat electromagnetic horn as claimed in claim 5, it is characterised in that: the screw hole (6) is symmetrical
Four screw holes being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548020.2U CN208923364U (en) | 2018-09-21 | 2018-09-21 | A kind of trapezoidal wave guide cavity seat electromagnetic horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548020.2U CN208923364U (en) | 2018-09-21 | 2018-09-21 | A kind of trapezoidal wave guide cavity seat electromagnetic horn |
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| Publication Number | Publication Date |
|---|---|
| CN208923364U true CN208923364U (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821548020.2U Active CN208923364U (en) | 2018-09-21 | 2018-09-21 | A kind of trapezoidal wave guide cavity seat electromagnetic horn |
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| CN (1) | CN208923364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824808A (en) * | 2022-04-18 | 2022-07-29 | 成都飞机工业（集团）有限责任公司 | Double-ridge horn antenna based on linear tapered ridge width |
-
2018
- 2018-09-21 CN CN201821548020.2U patent/CN208923364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824808A (en) * | 2022-04-18 | 2022-07-29 | 成都飞机工业（集团）有限责任公司 | Double-ridge horn antenna based on linear tapered ridge width |
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