CN113948862A - Heat-insulating wave-transmitting cover - Google Patents
Heat-insulating wave-transmitting cover Download PDFInfo
- Publication number
- CN113948862A CN113948862A CN202111159161.1A CN202111159161A CN113948862A CN 113948862 A CN113948862 A CN 113948862A CN 202111159161 A CN202111159161 A CN 202111159161A CN 113948862 A CN113948862 A CN 113948862A
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- Prior art keywords
- wave
- heat
- rotating shaft
- cover body
- antenna
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
Abstract
The heat-insulating wave-transmitting cover disclosed by the invention has the functions of heat insulation, heat preservation, wave transmission and the like. The invention is realized by the following technical scheme: the heat-insulating wave-transmitting main cover body (1) is composed of a middle core layer with low dielectric constant and low thermal conductivity and two layers of high-low temperature resistant and damp-proof skin surface thin layers, a rotating shaft hole (4) is located at the bottom of the main cover body (1), a rotating shaft for an external rotating mechanism and a high-low frequency cable of an antenna in the main cover body pass through the rotating shaft, a window (2) and the main cover body (1) form a complete sphere, the window (2) is smaller than half of the whole sphere and used for being assembled and disassembled by an antenna to be tested, at least one pair of air inlet and outlet (3) used for adjusting the temperature in the heat-insulating wave-transmitting cover body is arranged on the window (2), and an air direction shifting sheet for adjusting the air direction is arranged on the inner pipe wall of the air inlet and outlet. The heat-insulation wave-transmitting cover has the functions of heat insulation, wave transmission, rotation and the like, and can ensure that performance tests such as antenna directional patterns and the like can be performed in high-temperature and low-temperature environments.
Description
Technical Field
The invention relates to a heat-insulating wave-transmitting cover capable of ensuring that an antenna can be subjected to electrical performance test in high and low temperature environments.
Background
At present, a high-performance antenna is not a traditional passive component, and is a complex system integrating an antenna array surface, a radio frequency front end, a feeder network, a channel and digital signal processing. Due to the integration of the high-precision connection of the active module and the passive module, the performance of the antenna will be deteriorated by the influence of multiple physical fields of the working environment, such as a temperature field, a stress field, and the like. In the design process of the antenna, the influence of multiple physical fields on the performance of the antenna is considered, corresponding thermal design, structural design and the like are carried out, and the feasibility of the corresponding design is verified through simulation analysis. However, due to the radiation characteristics of the antenna, the performance of the antenna must be tested under a good free space condition, and the design for avoiding the influence of multiple physical fields on the performance of the antenna is finally difficult to load physical field real object verification in a microwave darkroom, and only can be guaranteed by design, so that great potential reliability hazard exists.
The representative technique related to the electrical performance test of the antenna under the comprehensive action of multiple physical fields in a simulated real working environment at present is as follows: erecting an auxiliary antenna in the incubator to carry out simple qualitative test; and (3) pasting a wave-absorbing material in the incubator, and passively receiving the antenna to be tested in a windowing mode. The method can not truly and completely restore the electrical property of the antenna under the high-low temperature action in the simulated real working environment, and the invention can ensure that the antenna can be subjected to electrical property test in a darkroom under the high-low temperature environment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the heat-insulating wave-transmitting cover which can ensure that the antenna can carry out performance tests such as a directional diagram and the like in high and low temperature environments in consideration of reducing the influence on radio frequency radiation, preserving heat, not frosting, not condensing, increasing and decreasing the temperature speed, rotating a rotating shaft and the like.
In order to solve the technical problems, the technical scheme implemented by the invention is as follows: a thermal insulating wave-transparent cover comprising: the main cover body 1 is provided with a rotating shaft hole 4 and is characterized in that the heat-insulating wave-transmitting layer consists of a middle core layer with low dielectric constant and low heat conductivity and at least two skin surface thin layers with high temperature resistance and low temperature resistance and moisture resistance; the rotating shaft hole 4 is positioned at the bottom of the main cover body 1 and is used for the rotating shaft of the rotating mechanism to pass through and the high-low frequency cable of the antenna to be tested to be led out; the main cover body 1 and the windowing 2 form a complete sphere, and the windowing 2 is smaller than a hemisphere and is used for assembling and disassembling the antenna to be tested; the window 2 is provided with at least one pair of air inlet and outlet 3 for adjusting the temperature in the heat-insulating wave-transmitting cover, and the inner pipe wall of the air inlet and outlet 3 is provided with a wind direction shifting sheet for adjusting the wind direction, so that the temperature in the heat-insulating wave-transmitting cover is more uniform; a pair of handles 6 are attached to the window 2 for moving the window 2 when the antenna to be tested is mounted or dismounted.
The invention has the beneficial effects that:
the invention adopts a spherical structure, the heat-insulating wave-transmitting layer of the main cover body 1 consists of a middle core layer with low dielectric constant and low thermal conductivity and two skin surface thin layers with high and low temperature resistance and moisture resistance, and the influence on radio frequency radiation is small; the rotating shaft hole 4 is combined with the sealing felt pad 5 for use, so that the rotation of the outer rotating mechanism of the heat-insulating wave-transmitting cover is not influenced while the sealing requirement of the rotating shaft hole is met, and the heat insulation and heat preservation of the main cover body, and frost formation and condensation prevention are guaranteed. The wind direction shifting sheet for adjusting the wind direction is arranged on the inner wall of the air inlet and outlet pipe 3, so that the temperature in the heat-insulating wave-transmitting cover is more uniform. The antenna can be ensured to carry out performance tests such as directional diagrams and the like in high and low temperature environments.
The air inlet and outlet pipe 3 is arranged on the window 2, so that the influence on radio frequency radiation is small. The heat-insulating wave-transmitting cover outer rotating mechanism is combined with the sealing felt pad 5 through the rotating shaft hole 4, so that the sealing requirement at the rotating shaft hole is met, and the rotation of the heat-insulating wave-transmitting cover outer rotating mechanism is not influenced. The antenna performance test under high and low temperature environment can be ensured in a darkroom.
Drawings
FIG. 1 is a front view of the thermal insulation wave-transparent cover of the present invention;
FIG. 2 is a side view of FIG. 1;
in the figure: the wind power generation device comprises a main cover body, a window 2, an air inlet and an air outlet 3, a rotating shaft hole 4, a sealing felt pad 5 and a handle 6.
Detailed Description
See fig. 1. In a preferred embodiment described below, a thermal wave-transparent cover comprises: a main cover body 1 provided with a rotating shaft hole 4. The heat insulation wave-transmitting layer consists of a middle core layer with low dielectric constant and low heat conductivity and at least two skin surface thin layers with high and low temperature resistance and moisture resistance; the rotating shaft hole 4 is positioned at the bottom of the main cover body 1 and is used for the rotating shaft of the rotating mechanism to pass through and the high-low frequency cable of the antenna to be tested to be led out; the main cover body 1 and the windowing 2 form a complete sphere, and the windowing 2 is smaller than a hemisphere and is used for assembling and disassembling the antenna to be tested; the window 2 is provided with at least one pair of air inlet and outlet 3 for adjusting the temperature in the heat-insulating wave-transmitting cover, and the inner pipe wall of the air inlet and outlet 3 is provided with a wind direction shifting sheet for adjusting the wind direction, so that the temperature in the heat-insulating wave-transmitting cover is more uniform; a pair of handles 6 are attached to the window 2 for moving the window 2 when the antenna to be tested is mounted or dismounted.
Further, a sealing felt pad 5 is arranged on the inner wall of the rotating shaft hole 4 and the rotating shaft hole opening. The sealing felt pad 5 is used for filling the gap between the rotating shaft hole 4 and the rotating shaft of the external rotating mechanism for sealing, and the sealing felt pad 5 can meet the requirement of sealing and heat insulation at the rotating shaft hole 4 and does not influence the rotation of the external rotating mechanism of the heat-insulating wave-transmitting cover. The rotating shaft hole 4 is combined with the sealing felt pad 5 for use, so that the rotation of the outer rotating mechanism of the heat-insulating wave-transmitting cover is not influenced while the sealing requirement of the rotating shaft hole is met.
Furthermore, the main cover body 1 adopts a spherical design to reduce the influence of the wave-transparent cover on radio frequency radiation, and the radiation in all directions is relatively consistent.
Furthermore, the design of the heat insulation wave-transmitting cover for windowing 2 is convenient for the loading and unloading of the antenna to be tested, and a pair of handles 6 are arranged on the heat insulation wave-transmitting cover and used for moving the windowing 2.
Further, the air inlet/outlet 3 is designed on the louver 2 to minimize the influence on the radio frequency radiation.
Further, the rotating shaft hole 4 is a hole formed right below the main cover body 1 and used for penetrating through the rotating shaft and the high-frequency and low-frequency cables.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A thermal insulating wave-transparent cover comprising: the main cover body (1) is provided with a rotating shaft hole (4), and is characterized in that the heat-insulation wave-transmitting layer consists of a middle core layer with low dielectric constant and low heat conductivity and at least two skin surface thin layers with high and low temperature resistance and moisture resistance; the rotating shaft hole (4) is positioned at the bottom of the main cover body (1) and is used for allowing a rotating shaft of the rotating mechanism to pass and leading out a high-frequency cable and a low-frequency cable of the antenna to be measured; the main cover body (1) and the windowing (2) form a complete sphere, and the windowing (2) is smaller than a hemisphere and is used for loading and unloading the antenna to be tested; the windowing (2) is provided with at least one pair of air inlets and air outlets (3) for adjusting the temperature in the heat-insulating wave-transmitting cover, and the inner pipe walls of the air inlets and the air outlets (3) are provided with wind direction poking sheets for adjusting the wind direction, so that the temperature in the heat-insulating wave-transmitting cover is more uniform; a pair of handles (6) are attached to the opening window (2) and used for moving the opening window (2) when the antenna to be tested is assembled and disassembled.
2. The thermally insulated, wave-transparent cover of claim 1, wherein: the inner walls of the rotating shaft hole (4) and the rotating shaft hole opening are provided with sealing felt pads (5).
3. The thermally insulated, wave-transparent cover of claim 1, wherein: the heat insulation wave-transmitting cover is provided with a pair of handles (6) for moving the window (2) on the window (2).
4. The thermally insulated, wave-transparent cover of claim 1, wherein: the air inlet and outlet (3) is arranged on the window (2).
5. The thermally insulated, wave-transparent cover of claim 1, wherein: the rotating shaft hole (4) is formed in a hole right below the main cover body 1 and is used for penetrating through the rotating shaft and the high-frequency and low-frequency cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159161.1A CN113948862A (en) | 2021-09-30 | 2021-09-30 | Heat-insulating wave-transmitting cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159161.1A CN113948862A (en) | 2021-09-30 | 2021-09-30 | Heat-insulating wave-transmitting cover |
Publications (1)
| Publication Number | Publication Date |
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| CN113948862A true CN113948862A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111159161.1A Pending CN113948862A (en) | 2021-09-30 | 2021-09-30 | Heat-insulating wave-transmitting cover |
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Citations (13)
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| US5215824A (en) * | 1990-12-05 | 1993-06-01 | General Electric Co. | RF-transparent spacecraft thermal control barrier |
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| CN108521015A (en) * | 2018-01-25 | 2018-09-11 | 合肥驼峰电子科技发展有限公司 | A kind of heat-insulated wave transparent antenna house of millimetre-wave radar |
| CN110031694A (en) * | 2018-01-10 | 2019-07-19 | 罗德施瓦兹两合股份有限公司 | For measuring the wireless test system and method for the wireless performance of equipment under test |
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2021
- 2021-09-30 CN CN202111159161.1A patent/CN113948862A/en active Pending
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| US5215824A (en) * | 1990-12-05 | 1993-06-01 | General Electric Co. | RF-transparent spacecraft thermal control barrier |
| EP1168490A2 (en) * | 2000-06-23 | 2002-01-02 | Kabushiki Kaisha Toshiba | Antenna apparatus and waveguide for use therewith |
| JP2003023362A (en) * | 2001-07-10 | 2003-01-24 | Ntt Docomo Inc | High sensitivity wireless receiver |
| JP2011211521A (en) * | 2010-03-30 | 2011-10-20 | Mitsubishi Electric Corp | Flying object radome |
| EP3035730A1 (en) * | 2014-12-19 | 2016-06-22 | Rohde & Schwarz GmbH & Co. KG | A measurement housing for a communication device |
| CN206922009U (en) * | 2016-12-15 | 2018-01-23 | 中国航空工业集团公司济南特种结构研究所 | A kind of heat insulation structural of antenna house |
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