CN216133978U - Strong electromagnetic wave antenna based on high vacuum chamber - Google Patents
Strong electromagnetic wave antenna based on high vacuum chamber Download PDFInfo
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- CN216133978U CN216133978U CN202122205701.7U CN202122205701U CN216133978U CN 216133978 U CN216133978 U CN 216133978U CN 202122205701 U CN202122205701 U CN 202122205701U CN 216133978 U CN216133978 U CN 216133978U
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Abstract
The utility model relates to a strong electromagnetic wave antenna based on a high vacuum chamber, which comprises a variable-flare-angle conical structure, wherein one end of the variable-flare-angle conical structure is connected with an input port, and the other end of the variable-flare-angle conical structure is connected with a conical emission flare-angle structure; a dielectric lens is arranged between the variable-opening-angle cone structure and the cone emission opening-angle structure, and an insulating rubber mouth surface is arranged on the end surface of the cone emission opening-angle structure, which is far away from the variable-opening-angle cone structure. The utility model has simple structure and stable emission performance, and can effectively emit megawatt pulse strong electromagnetic wave. Can emit the input electromagnetic wave outwards with better directivity, and has important significance for improving the radiation performance of the electromagnetic wave.
Description
Technical Field
The utility model relates to the technical field of electromagnetic wave emission, in particular to a strong electromagnetic wave antenna based on a high vacuum chamber.
Background
The electromagnetic wave is an oscillating wave derived and transmitted in space by an electric field and a magnetic field which are in phase and perpendicular to each other, and is an electromagnetic field propagating in a wave form.
When the power of the electromagnetic wave exceeds 10MW, it is called a strong electromagnetic wave. When strong electromagnetic waves act on different instruments, the electronic information system can generate the influences of function disturbance, hardware damage and the like. The working performance of the transmitting antenna has an important influence on the action effect of strong electromagnetic waves.
The existing strong electromagnetic wave generating device mostly utilizes a mode of combining the spiral antenna and the sealing cover to radiate strong electromagnetic waves, but the large-scale spiral antenna generally needs a support structure such as a dielectric column, and the like, so that the system structure is easy to shake, and the transmitting effect is influenced.
Therefore, those skilled in the art have made an effort to develop a strong electromagnetic wave antenna based on a high vacuum chamber, and the utility model provides a transmitting antenna which has a simple structure, stable transmitting performance and can effectively transmit megawatt-level pulse strong electromagnetic waves. Can emit the input electromagnetic wave outwards with better directivity, and has important significance for improving the radiation performance of the electromagnetic wave.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a strong electromagnetic wave antenna based on a high vacuum chamber, and the transmitting antenna has the advantages of simple structure, stable transmitting performance and effective transmission of megawatt pulse strong electromagnetic waves. Can emit the input electromagnetic wave outwards with better directivity, and has important significance for improving the radiation performance of the electromagnetic wave.
The technical scheme for solving the technical problems is as follows: a strong electromagnetic wave antenna based on a high vacuum chamber comprises a variable-field-angle conical structure, wherein one end of the variable-field-angle conical structure is connected with an input port, and the other end of the variable-field-angle conical structure is connected with a conical emission field angle structure;
a dielectric lens is arranged between the variable-opening-angle cone structure and the cone emission opening-angle structure, and an insulating rubber mouth surface is arranged on the end surface of the cone emission opening-angle structure, which is far away from the variable-opening-angle cone structure.
The utility model has the beneficial effects that: the utility model has simple structure and stable emission performance, and can effectively emit megawatt pulse strong electromagnetic wave. Can emit the input electromagnetic wave outwards with better directivity, and has important significance for improving the radiation performance of the electromagnetic wave.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, one side of the dielectric lens is a plane, and the other opposite side of the dielectric lens, which is close to the insulating rubber opening, is a convex spherical end surface.
The dielectric lens has the advantages that the dielectric lens has a partition function on one hand, on the other hand, the nondestructive transmission of strong electromagnetic waves through multiple interfaces of high vacuum, solid medium, insulating gas and atmosphere is achieved, the vacuum chamber of the whole antenna is greatly shortened through the dielectric lens, and the vacuumizing time is shortened.
Further, insulating gas is filled in the cone emission flare angle structure and between the dielectric lens and the insulating rubber mouth surface;
the inside of the flare angle conical structure is vacuum.
The technical scheme has the advantages that the sectional shape of the dielectric lens is strictly simulated and calculated according to the wave-transmitting rate of the material and the dielectric capture loss, otherwise, the breakdown phenomenon can occur when megawatt-level pulse strong electromagnetic waves are transmitted without damage, the inner plane side of the lens is in high vacuum, and the transmitting power capacity tolerance level of the conical horn antenna is further improved; simple and feasible, and low processing cost.
Further, the inner radius of the input port is rinAnd 3.4126rin≥λ≥2.6127rin；
Wherein λ is the wavelength of the electromagnetic wave.
The beneficial effect of adopting the further scheme is that the radiation of the antenna to strong electromagnetic waves can be effectively improved by accurately calculating the inner radius of the input end.
Further, the variable-flare-angle conical structure comprises a first conical structure and a second conical structure, and the inner radius of the first conical structure close to the input port is r1The inner radius of the first conical structure far away from the input port is r2；
Wherein r isin≤r1≤r2。
The beneficial effect of adopting above-mentioned further scheme is that the adoption is many circular cones structure, can further improve circular cone horn antenna transmission power capacity tolerance level, and the strong electromagnetic pulse action distance is farther.
Further, the length of the center of the sphere of the spherical end surface of the dielectric lens and the center point of the plane of the dielectric lens is l,
wherein the radius of the spherical end surface of the dielectric lens (200) is R;
wherein
The beneficial effect of adopting the further scheme is that the design is optimized by electromagnetic field simulation software according to the requirement of the directivity of the emitted electromagnetic wave.
Further, the inner radius of the second conical structure close to the conical emission flare angle structure is r3；
Wherein r is2≤r3。
The beneficial effect of adopting above-mentioned further scheme is that further improves circular cone horn antenna transmission power capacity tolerance level, makes strong electromagnetic pulse working distance farther.
Further, the variable flare angle cone structure and the cone emission flare angle structure are made of metal conductive materials.
The beneficial effect of adopting above-mentioned further scheme is that the loss that strengthens electromagnetic induction and then reduces the electromagnetic wave.
Further, the medium lens is made of polyethylene and polytetrafluoroethylene.
The beneficial effect of adopting above-mentioned further scheme is that the tolerance intensity of improvement medium lens, the life of extension medium lens.
Further, the insulating rubber opening surface is made of silicon rubber.
The beneficial effect of adopting above-mentioned further scheme is reinforcing cone emission flare angle structure's leakproofness.
Drawings
FIG. 1 is a perspective structural view of an embodiment of the present invention;
FIG. 2 is a cross-sectional structural view of an embodiment of the present invention;
FIG. 3 is a block diagram of an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
100. a variable flare angle conical structure; 110. a first conical structure; 120. a second conical structure; 200 medium lenses; 300. a conical launch flare structure; 400. an input port; 500. insulating rubber opening surface.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, 2, and 3, a strong electromagnetic wave antenna based on a high vacuum chamber includes a variable-field-angle cone structure 100, and the inside of the variable-field-angle cone structure 100 is vacuum. In this embodiment, the flare angle conical structure 100 includes a first conical structure 110 and a second conical structure 120, one end of the flare angle conical structure 100 is connected to an input port 400, the input port 400 is cylindrical, and the input port 400 is used for connecting an electromagnetic wave generating device. The other end of the variable flare angle cone structure 100 is connected with a cone emission flare angle structure 300, and the variable flare angle cone structure 100 and the cone emission flare angle structure 300 are both made of metal conductive materials.
The first conical structure 110 has an inner radius r near the input port 4001The inner radius of the first conical structure 110 away from the input port 400 is r2，Wherein r isin≤r1≤r2. The input port 400 has an inner radius rinAnd 3.4126rin≥λ≥2.6127rin(ii) a Wherein λ is the wavelength of the electromagnetic wave. The inner radius of the second conical structure 120 close to the conical emission flare structure 300 is r3，Wherein r is2≤r3。
In some embodiments, the axial length of the first conical structure 110 is set to L1The axial length of the second conical structure 120 is L2The axial length of the Kth conical structure is LK；
Setting the inner radius of the first conical structure 110 to r1，The inner radius of the second conical structure 120 close to the first conical structure 110 is set to r2The inner radius of the K-th conical structure close to the K-1-th conical structure is rkWherein L iskAnd rkCan be optimally designed and selected according to the emission performance of specific requirements, and theoretically LkAnd rkThe value of (A) can be infinite, but L is designed specifically to ensure the emission performance of the utility modelkAnd rkThe selection of the K can be optimally designed by electromagnetic field simulation software according to the requirements of the center frequency and the bandwidth of the electromagnetic wave, and the value of the K is generally 1 or 2.
A dielectric lens 200 is arranged between the variable-opening-angle cone structure 100 and the cone emission opening-angle structure 300, and the dielectric lens 200 and the variable-opening-angle cone structure 100 have the same central axis. The dielectric lens 200 is made of polyethylene, teflon. One side of the dielectric lens 200 is a plane, and the other opposite side and the side close to the insulating rubber opening 500 is a convex spherical end surface. The length of the center of the spherical end surface of the dielectric lens 200 and the center point of the plane of the dielectric lens 200 is l, wherein the radius of the spherical end surface of the dielectric lens 200 is R, wherein
The variable-flare-angle conical structure 100, the planar-spherical end face dielectric lens 200 and the conical emission flare-angle structure 300 form a strong electromagnetic wave conical horn antenna.
The cone emission flare angle structure 300 is provided with an insulating rubber mouth surface 500 on the end surface far away from the flare angle-variable cone structure 100, and the insulating rubber mouth surface 500 is made of silicon rubber. The insulating gas is filled in the cone emission flare structure 300 and between the dielectric lens 200 and the insulating rubber mouth surface 500.
The working principle of the utility model is as follows: the circular waveguide mode injected from the input port 400 is transitionally converted into spherical waves through the variable-opening-angle conical structure 100 with optimized design, and then is converted into quasi-plane waves through the action of the dielectric lens 200 to be transmitted outwards. Meanwhile, the dielectric lens 200 may serve as a sealing radome of the variable-opening-angle conical structure 100. The internal vacuum-pumping process of the variable-aperture conical structure 100 can be realized by arranging the dielectric lens 200. The circular waveguide mode injected from the input port 400 of the variable-opening-angle conical structure 100 forms spherical waves at the opening surface of the conical structure, the spherical waves can be emitted by the dielectric lens 200 after passing through the lens in an approximately planar wave mode, then strong electromagnetic waves enter the conical emission opening angle structure 300 to be transmitted, a closed cavity is formed between the insulating rubber opening surface 500 and the conical emission opening angle 300, and according to the improvement of the intensity of injected electromagnetic waves, the inside of the insulating rubber opening surface is filled with insulating gas with the flat atmospheric pressure, the transmission power capacity tolerance level of the conical horn antenna can be further improved, the electromagnetic wave emission performance is further improved, and the strong electromagnetic wave emission directivity is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A strong electromagnetic wave antenna based on a high vacuum chamber is characterized in that: the variable-flare-angle cone structure comprises a variable-flare-angle cone structure (100), wherein one end of the variable-flare-angle cone structure (100) is connected with an input port (400), and the other end of the variable-flare-angle cone structure (100) is connected with a cone emission flare-angle structure (300);
a dielectric lens (200) is arranged between the variable-flare-angle conical structure (100) and the conical emission flare-angle structure (300), and an insulating rubber mouth surface (500) is arranged on the end surface of the conical emission flare-angle structure (300) far away from the variable-flare-angle conical structure (100);
insulating gas is filled in the conical emission flare angle structure (300) and positioned between the dielectric lens (200) and the insulating rubber mouth surface (500);
the variable-flare-angle conical structure (100) is internally vacuum.
2. A strong electromagnetic wave antenna based on a high vacuum chamber as set forth in claim 1, wherein: one surface of the dielectric lens (200) is a plane, and the other opposite surface, which is close to the insulating rubber opening surface (500), is a convex spherical end surface.
3. A high vacuum chamber-based strong electromagnetic wave antenna according to any one of claims 1 to 2, characterized in that: the input port (400) has an inner radius rinAnd 3.4126rin≥λ≥2.6127rin；
Wherein λ is the wavelength of the electromagnetic wave.
4. A high vacuum chamber-based strong electromagnetic wave antenna according to claim 3, characterized in that: the variable-flare-angle conical structure (100) comprises a first conical structure (110) and a second conical structure (120), wherein the inner radius of the first conical structure (110) close to the input port (400) is r1The inner radius of the first conical structure (110) away from the input port (400) is r2；
Wherein r isin≤r1≤r2。
5. A high vacuum chamber-based strong electromagnetic wave antenna according to claim 4, characterized in that: the length of the spherical center of the spherical end surface of the dielectric lens (200) and the plane central point of the dielectric lens (200) is l,
wherein the radius of the spherical end surface of the dielectric lens (200) is R;
wherein
6. A high vacuum chamber-based strong electromagnetic wave antenna according to claim 5, characterized in that: the inner radius of the second conical structure (120) close to the conical emission opening angle structure (300) is r3；
Wherein r is2≤r3。
7. A strong electromagnetic wave antenna based on a high vacuum chamber as set forth in claim 1, wherein: the variable aperture cone structure (100) and the cone emission aperture structure (300) are made of a metal conductive material.
8. A strong electromagnetic wave antenna based on a high vacuum chamber as set forth in claim 1, wherein: the dielectric lens (200) is made of polyethylene and polytetrafluoroethylene.
9. A strong electromagnetic wave antenna based on a high vacuum chamber as set forth in claim 1, wherein: the insulating rubber opening surface (500) is made of silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122205701.7U CN216133978U (en) | 2021-09-13 | 2021-09-13 | Strong electromagnetic wave antenna based on high vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122205701.7U CN216133978U (en) | 2021-09-13 | 2021-09-13 | Strong electromagnetic wave antenna based on high vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133978U true CN216133978U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122205701.7U Expired - Fee Related CN216133978U (en) | 2021-09-13 | 2021-09-13 | Strong electromagnetic wave antenna based on high vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133978U (en) |
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2021
- 2021-09-13 CN CN202122205701.7U patent/CN216133978U/en not_active Expired - Fee Related
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Granted publication date: 20220325 |