CN111200185A - Antenna housing for measurement and control, antenna/antenna housing integrated structure and manufacturing method thereof - Google Patents
Antenna housing for measurement and control, antenna/antenna housing integrated structure and manufacturing method thereof Download PDFInfo
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- CN111200185A CN111200185A CN201811281564.1A CN201811281564A CN111200185A CN 111200185 A CN111200185 A CN 111200185A CN 201811281564 A CN201811281564 A CN 201811281564A CN 111200185 A CN111200185 A CN 111200185A
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- antenna
- antenna housing
- measurement
- housing
- radome
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Abstract
The embodiment of the invention provides a measurement and control antenna housing, an antenna/antenna housing integrated structure and a manufacturing method thereof, wherein the manufacturing method of the measurement and control antenna housing comprises the following steps: carrying out simulation calculation on the antenna calculation model with the antenna housing calculation model to obtain the dielectric constant of the corresponding antenna housing calculation model when an antenna directional diagram meets a set value, wherein the dielectric constant is a; selecting raw materials of an antenna housing, comprising the following steps: an organic resin, reinforcing fibers, and a dielectric tuning component having a dielectric constant greater than the dielectric constants of the organic resin and the reinforcing fibers; mixing the raw materials and adjusting the proportion of the raw materials to obtain an antenna housing base material with a dielectric constant a; the antenna housing is prepared by adopting the antenna housing base material. The manufacturing method of the integrated structure comprises the following steps: obtaining the antenna housing by adopting the method; and assembling the antenna housing and the antenna to obtain the antenna. The antenna and the antenna housing can eliminate the mutual coupling effect between the antenna and the antenna housing, and the comprehensive radiation performance of the antenna/the antenna housing is greatly improved.
Description
Technical Field
The invention belongs to the technical field of electromagnetic fields and microwaves, and particularly relates to a measuring and controlling antenna housing, an antenna/antenna housing integrated structure and a manufacturing method of the antenna housing.
Background
The radio measurement and control system is an important subsystem of the aircrafts such as missiles and the like. The method is mainly used for obtaining working state parameters and environmental data of each system of the aircraft in a flight test, and providing accurate basis for identifying the technical performance of the aircraft or performing fault analysis. The measurement and control antenna is used as a key component of the measurement and control system, and the quality of the radiation performance of the measurement and control antenna directly determines the working performance of the whole measurement and control system.
In order to protect the measurement and control antenna from being damaged in the flight process, the radiation end face of the measurement and control antenna is often covered by an antenna housing with a similar shape. In the traditional design and manufacturing process of the antenna housing, the following problems exist: at present, the antenna housing is independently designed, and only a limited number of dielectric materials can be selected, so that strong mutual coupling effect is generated between the antenna and the antenna housing due to matching imbalance, and finally, a radiation pattern of the antenna with the antenna housing generates serious distortion.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
In order to solve the technical problem, the antenna housing for measurement and control, the antenna/antenna housing integrated structure and the manufacturing method thereof are provided, so that the mutual coupling effect between the antenna and the antenna housing can be eliminated, and the comprehensive radiation performance of the antenna/antenna housing is greatly improved.
The technical solution of the invention is as follows:
according to a first aspect, a method for manufacturing a measurement and control radome is provided, including:
an antenna/antenna housing integrated simulation design is provided,
carrying out simulation calculation on the antenna calculation model with the antenna housing calculation model to obtain the dielectric constant of the corresponding antenna housing calculation model when an antenna directional diagram meets a set value, wherein the dielectric constant is a;
manufacturing of a radome, comprising:
(1) selecting raw materials of an antenna housing, wherein the raw materials comprise: an organic resin, reinforcing fibers, and a dielectric tuning component having a dielectric constant greater than the dielectric constants of the organic resin and the reinforcing fibers;
(2) mixing the raw materials and adjusting the proportion of the raw materials to obtain an antenna housing base material with a dielectric constant a;
(3) the antenna housing is prepared by adopting the antenna housing base material.
Preferably, the reinforcing fiber is quartz fiber or glass fiber.
Preferably, the dielectric tuning component is titanium dioxide.
According to a second aspect, a measurement and control antenna housing is provided, which is manufactured by the method.
According to a third aspect, a method for manufacturing an antenna/radome integrated structure for measurement and control is provided, which includes:
obtaining the antenna housing by adopting the method; and assembling the antenna housing and the antenna to obtain the integrated structure.
Preferably, in the method, the radome and the antenna are assembled together in a curing molding manner.
Preferably, the curing molding is as follows: and adopting adhesive resin A to adhere the antenna housing to the part to be connected of the antenna, and then carrying out curing molding.
Preferably, the resin a is the same as the organic resin.
According to a fourth aspect, an antenna/antenna housing integrated structure for measurement and control is provided, which is manufactured by the manufacturing method of the integrated structure.
By applying the technical scheme, on one hand, the required dielectric constant of the antenna housing is obtained by comprehensively designing the antenna housing as a part of the antenna; on the other hand, based on the designed dielectric constant of the antenna housing, in order to achieve the dielectric constant of the antenna housing base material, the antenna housing base material is prepared to comprise organic resin, reinforcing fibers and dielectric adjusting components, the antenna housing base material with the dielectric constant meeting the requirements is obtained by adjusting the proportion of the organic resin, the reinforcing fibers and the dielectric adjusting components, engineering manufacturing of the antenna housing is achieved, and the mutual coupling effect between the antenna and the antenna housing is eliminated through the antenna housing manufactured by the method. The antenna housing and the antenna/antenna housing integrated structure provided by the embodiment of the invention have the advantages that the preparation method is simple, the problem location is accurate, the wave beam lobe phenomenon of the antenna directional diagram of the obtained antenna/antenna housing integrated structure is obviously improved, the gain is also improved, the comprehensive radiation performance of the antenna/antenna housing is greatly improved, and the engineering is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of a calculation model of an antenna for measurement and control according to an embodiment of the present invention;
fig. 2 is a schematic view of a calculation model of the antenna for measurement and control according to the embodiment of the present invention after the calculation model is matched with a conventional radome;
fig. 3 is a comparison result of H-plane directional patterns of the measurement and control antenna provided by the embodiment of the invention after being matched with the conventional substrate radome and the radome provided by the embodiment of the invention;
fig. 4 is a comparison result of an E-plane directional pattern of the measurement and control antenna provided by the embodiment of the present invention after being matched with a conventional substrate radome and the radome of the embodiment of the present invention.
Detailed Description
The following provides a detailed description of specific embodiments of the present invention. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the device structures and/or processing steps that are closely related to the scheme according to the present invention are shown in the drawings, and other details that are not so relevant to the present invention are omitted.
As mentioned in the background art, unlike the array antenna for radar guidance, the measurement and control antenna generally has a wide lobe and a low gain, and the radome needs to be tightly attached to the radiation end surface of the measurement and control antenna and be located in the induction field region of the antenna. Under the condition, when the antenna housing of the antenna is prepared in the prior art, the antenna and the antenna housing are usually designed independently, however, the antenna and the antenna housing which are designed independently are easy to generate strong mutual coupling effect in a matching test, so that the gain of the antenna is reduced, even a directional diagram is distorted, and a measurement and control system cannot work normally. As shown in fig. 1-2, after a certain measurement and control antenna is matched with a conventional radome, a strong mutual coupling effect is generated, and a radiation pattern of the measurement and control antenna is severely distorted, so that a measurement and control system cannot normally work. Based on the problem, a first aspect of the embodiments of the present invention provides a method for manufacturing a measurement and control radome, where the method includes:
step 1, antenna/antenna housing integrated simulation design,
carrying out simulation calculation on the antenna calculation model with the antenna housing calculation model to obtain the dielectric constant of the corresponding antenna housing calculation model when an antenna directional diagram meets a set value, wherein the dielectric constant is a;
step 2, manufacturing the antenna housing, comprising the following steps:
(1) selecting raw materials of an antenna housing, wherein the raw materials comprise: an organic resin, reinforcing fibers, and a dielectric tuning component having a dielectric constant greater than the dielectric constants of the organic resin and the reinforcing fibers;
(2) mixing the raw materials and adjusting the proportion of the raw materials to obtain an antenna housing base material with a dielectric constant a;
(3) the antenna housing is prepared by adopting the antenna housing base material.
The manufacturing method of the antenna housing for measurement and control provided by the embodiment of the invention is different from the manufacturing method of the antenna housing in the prior art, the antenna housing is directly designed only based on the antenna frequency in the prior art, and when the antenna housing and the antenna are matched to generate mutual coupling effect, the antenna is usually adjusted. The idea of the embodiment of the invention is to start with the adjustment of the radome, and well eliminate the mutual coupling effect by adopting a mode of only adjusting the dielectric constant of the radome. Specifically, the antenna housing is comprehensively designed as a part of the antenna, and the mutual coupling effect between the antenna and the antenna housing is eliminated by adjusting the dielectric constant of the antenna housing base material, so that the comprehensive radiation performance of the antenna and the antenna housing is optimized. As an important point: the method comprises the steps that the antenna housing is comprehensively designed as a part of an antenna, and the required dielectric constant of the antenna housing is obtained; as another important point: based on the dielectric constant of the designed antenna housing, in order to achieve the dielectric constant of the antenna housing base material, the antenna housing raw material is prepared to comprise organic resin, reinforcing fiber and a dielectric adjusting component, the antenna housing base material with the dielectric constant meeting the requirements is obtained by adjusting the proportion of the organic resin, the reinforcing fiber and the dielectric adjusting component, the engineering manufacture of the antenna housing is achieved, the mutual coupling effect between an antenna and the antenna housing is eliminated by the antenna housing prepared by the method, the preparation method is simple, the problem location is accurate, the wave beam lobe phenomenon of an antenna directional diagram of the obtained antenna/antenna housing integrated structure is obviously improved, the gain is improved, the comprehensive radiation performance of the antenna/antenna housing is greatly improved, and the engineering is strong.
In this embodiment, the simulation calculation can be realized by using common simulation software, and the radome calculation model can be designed according to actual needs, including the radome shape and each parameter (used for simulation), wherein each parameter mainly includes radome thickness, dielectric constant, etc., and in the simulation process, only the radome dielectric constant needs to be continuously changed until the antenna directional diagram meets the requirements, and the dielectric constant corresponding at this moment is a.
In this embodiment, on the basis of the antenna specification, a specific simulation means for performing the antenna calculation model with the calculation model of the radome may be performed by using a conventional simulation method in the art.
In this embodiment, the antenna pattern that meets the set value is that the antenna pattern meets the use requirement, and no distortion is generated, and in order to achieve this characteristic, this embodiment is performed by adjusting the dielectric constant of the radome. .
In this embodiment, the radome prepared by using the radome base material can be prepared by means known in the art, for example, the radome is manufactured in a mold.
In one embodiment of the present invention, in order to manufacture the radome, the reinforcing fiber may be a quartz fiber, a glass fiber, or the like, the organic resin may be an epoxy resin, or the like, and the types of the reinforcing fiber and the organic resin are not limited thereto, and other types may be selected as needed.
As an embodiment of the invention, the dielectric tuning component is preferably titanium dioxide.
In this embodiment, those skilled in the art know that: the organic resin-based composite material system has good mechanical and thermal properties and is widely applied to radar head covers of aircrafts such as aerospace and the like. The traditional organic resin-based composite material comprises two components of organic resin and reinforcing fiber (quartz fiber and glass fiber), the dielectric constant of the traditional organic resin-based composite material is a fixed value, and the characteristic that the dielectric constant can not be adjusted is realized, and the method for realizing the adjustment of the dielectric constant comprises the following steps: the existing radome usually adopts a fiber reinforced organic resin composite material, wherein in order to ensure the strength requirement of the radome, the fiber content is usually high, and the dielectric constant of the organic resin is low, so the dielectric constant of the radome is usually the dielectric constant of the fiber, and the dielectric constant of the commonly used fiber is, for example: the quartz fiber is 3.4 and the glass fiber is 4.2, that is, the dielectric constant of the prior radome is either around 3.4 or around 4.2, which is basically fixed, i.e., the above mentioned is not adjustable. In order to obtain the radome base material with the dielectric constant meeting the requirement, the titanium dioxide material with high dielectric constant is introduced into the traditional organic resin-based composite material, and the dielectric constant of the composite material is adjusted by changing the mixing ratio of the three material components, so that the radome manufacturing based on the dielectric adjustable base material is realized. The embodiment of the invention selects titanium dioxide as a dielectric adjusting component, and has the following advantages: firstly, titanium dioxide can not react with resin and fiber commonly used for preparing the antenna housing, so that the wave permeability of the antenna housing can be ensured; secondly, titanium dioxide is easily and uniformly mixed in the two components, and based on the characteristics of the titanium dioxide, the dielectric constant of the whole substrate can be greatly changed by only adding a small amount of titanium dioxide, so that the dielectric constant of the antenna housing substrate is easy to adjust; and thirdly, the dielectric constant of the titanium dioxide is higher than that of the two components, so that the dielectric constant of the prepared antenna housing base material is adjusted and improved relative to the prior art (the dielectric constant of the prior antenna housing base material is not adjustable and lower, and the use requirement is not met).
According to a second aspect of the embodiment of the present invention, there is provided a measurement and control radome manufactured by the above method. Therefore, the antenna housing for measurement and control is applied to engineering.
According to a third aspect of the embodiments of the present invention, there is provided a method for manufacturing an antenna/radome integrated structure for measurement and control, including:
obtaining the antenna housing by adopting the method; and assembling the antenna housing and the antenna to obtain the integrated structure.
In the embodiment of the invention, the integrated structure is obtained by assembling the method and the corresponding antenna housing, and because the dielectric constant of the antenna housing is designed in advance to meet the requirement, the mutual coupling effect cannot exist between the antenna and the antenna housing of the integrated structure obtained after the assembly, so that the comprehensive radiation performance of the antenna/antenna housing is optimal.
As an embodiment of the present invention, the radome and the antenna are assembled together by means of curing molding.
In this embodiment, avoided observing and controling among the prior art and assembled the mode with antenna and antenna house, antenna and antenna house adopt riveted mode to assemble usually among the prior art, and this kind of assembled mode has reduced overall structure intensity on the one hand, thereby on the other hand leads to very easily producing the radiation performance that the gap reduced the antenna between antenna and the antenna house. According to the embodiment of the invention, the antenna and the antenna housing are integrally cured and molded, so that the integral structural strength is enhanced, and the influence of a gap between the antenna and the antenna housing on the radiation performance is eliminated.
In this embodiment, in order to realize the curing molding of the antenna and the radome, the curing molding is as follows: and adopting adhesive resin A to adhere the antenna housing to the part to be connected of the antenna, and then carrying out curing molding. By applying the configuration mode, the antenna and the antenna housing are bonded by using organic resin as an adhesive, and then the antenna and the antenna housing are integrally cured and molded, wherein the part to be mounted of the antenna can be the radiation end face of the antenna, namely the antenna housing can be bonded with the radiation end face of the antenna.
In this embodiment, in order to ensure the curing molding effect, the resin a may be the same as the organic resin described above.
According to a fourth aspect of the embodiment of the invention, an antenna/antenna housing integrated structure for measurement and control is provided, and is manufactured by adopting the manufacturing method of the integrated structure.
The present invention is described in further detail below with reference to specific examples, which are not to be construed as limiting the scope of the invention as claimed.
After a certain type of measurement and control antenna is matched with a traditional antenna housing, a strong mutual coupling effect is generated, and a radiation pattern of the measurement and control antenna generates serious distortion, so that a measurement and control system cannot normally work, as shown in fig. 2. Therefore, by adopting the technical scheme provided by the embodiment of the invention, the mutual coupling effect of the measurement and control antenna and the antenna housing is reduced, and the engineering manufacture of the antenna housing is realized.
Firstly, an antenna/antenna housing integrated simulation design,
the antenna housing is used as a part of the measurement and control antenna to perform overall simulation optimization, after the dielectric constant of the antenna housing is adjusted from 3.4 to 5.0, the mutual coupling effect of the antenna and the antenna housing is greatly reduced, the beam lobe phenomenon of an antenna directional diagram is obviously improved, the gain is also improved, the use requirement of a measurement and control system is met, and the radiation directional diagrams before and after optimization are shown in figures 3 and 4. As can be seen from the figure, after the antenna is matched with the conventional substrate radome, the antenna directional pattern generates serious depression, especially an H surface, in the main view field direction; after the antenna is matched with the dielectric adjustable substrate radome, the depression phenomenon of a directional diagram in the main view field direction is obviously improved, and meanwhile, the maximum amplitude value is also improved to a certain extent.
Manufacturing of antenna housing based on dielectric adjustable base material
In order to realize the manufacture of the antenna housing based on the dielectric adjustable substrate, in the traditional organic resin-based composite material (organic resin and quartz fiber), a high-dielectric titanium dioxide material is introduced, and the dielectric constant of the composite material is adjusted by changing the mixing ratio of the three material components. Table 1 shows the blending ratio of the dielectric tunable composite material having a dielectric constant of 5. After the proportion is determined, the manufacturing of the antenna housing can be realized through the die;
TABLE 1 blending ratio of dielectric tunable composites
| Dielectric constant | Blending ratio (epoxy resin: quartz fiber: titanium dioxide) |
| 5 | 1：1.3：1 |
And thirdly, organic resin is used as an adhesive, and the measurement and control antenna and the antenna housing are integrally cured and molded, so that the structural strength is enhanced, and the influence of a gap between the measurement and control antenna and the antenna housing on the radiation performance of the antenna is eliminated.
The epoxy resin which is the same as the dielectric adjustable antenna housing base material is used as an adhesive, the measurement and control antenna and the antenna housing are integrally cured and molded, so that the structural strength is enhanced, and the influence of a gap between the measurement and control antenna and the antenna housing on the radiation performance of the antenna is eliminated.
Features that are described and/or illustrated above with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
The many features and advantages of these embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of these embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
The invention has not been described in detail and is in part known to those of skill in the art.
Claims (9)
1. A manufacturing method of a measurement and control antenna housing is characterized by comprising the following steps:
an antenna/antenna housing integrated simulation design is provided,
carrying out simulation calculation on the antenna calculation model with the antenna housing calculation model to obtain the dielectric constant of the corresponding antenna housing calculation model when an antenna directional diagram meets a set value, wherein the dielectric constant is a;
manufacturing of a radome, comprising:
(1) selecting raw materials of an antenna housing, wherein the raw materials comprise: an organic resin, reinforcing fibers, and a dielectric tuning component having a dielectric constant greater than the dielectric constants of the organic resin and the reinforcing fibers;
(2) mixing the raw materials and adjusting the proportion of the raw materials to obtain a mixture with a dielectric constant a;
(3) the mixture is used to prepare a radome.
2. The manufacturing method of the antenna housing for measurement and control according to claim 1, wherein the reinforcing fiber is quartz fiber or glass fiber.
3. The method for manufacturing the antenna housing for measurement and control according to claim 1, wherein the dielectric adjusting component is titanium dioxide.
4. A measurement and control radome, characterized in that the radome is manufactured by the method of any one of claims 1 to 3.
5. A manufacturing method of an antenna/antenna housing integrated structure for measurement and control is characterized by comprising the following steps:
obtaining a radome using the method of claims 1-3;
and assembling the antenna housing and the antenna to obtain the integrated structure.
6. The manufacturing method of the integrated structure of the antenna/radome for measurement and control according to claim 5, wherein in the method, the radome and the antenna are assembled together in a curing molding mode.
7. The manufacturing method of the antenna/radome integrated structure for measurement and control according to claim 6, wherein the curing molding is as follows: and adopting adhesive resin A to adhere the antenna housing to the part to be connected of the antenna, and then carrying out curing molding.
8. The manufacturing method of the integrated structure of the antenna/radome for measurement and control according to claim 1, wherein the resin a is the same as the organic resin.
9. An antenna/antenna housing integrated structure for measurement and control, which is characterized in that the integrated structure is manufactured by the method of any one of claims 5 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811281564.1A CN111200185A (en) | 2018-10-31 | 2018-10-31 | Antenna housing for measurement and control, antenna/antenna housing integrated structure and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811281564.1A CN111200185A (en) | 2018-10-31 | 2018-10-31 | Antenna housing for measurement and control, antenna/antenna housing integrated structure and manufacturing method thereof |
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Cited By (1)
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| WO2022255106A1 (en) * | 2021-05-31 | 2022-12-08 | 豊田合成株式会社 | Millimeter-wave-transmitting garnish |
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| US7463212B1 (en) * | 2005-09-14 | 2008-12-09 | Radant Technologies, Inc. | Lightweight C-sandwich radome fabrication |
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Application publication date: 20200526 |