CN217009547U - Antenna for realizing frequency change by utilizing temperature change - Google Patents
Antenna for realizing frequency change by utilizing temperature change Download PDFInfo
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- CN217009547U CN217009547U CN202220622541.8U CN202220622541U CN217009547U CN 217009547 U CN217009547 U CN 217009547U CN 202220622541 U CN202220622541 U CN 202220622541U CN 217009547 U CN217009547 U CN 217009547U
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Abstract
The utility model discloses an antenna for realizing frequency change by utilizing temperature change, belonging to the technical field of communication antennas. The antenna comprises an antenna, a wave-transmitting cover and a sealed cabin, wherein the wave-transmitting cover is arranged at the top of the sealed cabin, the wave-transmitting cover and the sealed cabin form a sealed space, the antenna is positioned in the sealed space, and temperature control equipment is also arranged at the bottom outside the sealed cabin; the antenna is a waveguide antenna, a vibrator antenna or a ridge horn antenna, and the material of the antenna has the characteristics of stable thermal expansion coefficient and large expansion coefficient. The utility model changes the structural size of the antenna by using the physical characteristics of expansion with heat and contraction with cold, and realizes the function of changing the frequency of the antenna.
Description
Technical Field
The utility model relates to the technical field of communication antennas, in particular to an antenna for realizing frequency change by utilizing temperature change.
Background
In the conventional antenna, the antenna with wide beam is mainly used at present, and the antenna has the form of frequency coverage, so that the more the antenna is away from the central frequency, the lower the gain of the antenna is, and the central frequency is not changed. In the high frequency antenna, two or more antennas are required to change the frequency.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an antenna for implementing frequency variation by using temperature variation. The antenna changes the structural size of the antenna by utilizing the physical characteristics of expansion with heat and contraction with cold, and realizes the function of antenna frequency change.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an antenna for realizing frequency change by utilizing temperature change comprises an antenna, a wave-transmitting cover and a sealed cabin, wherein the wave-transmitting cover is arranged at the top of the sealed cabin, the wave-transmitting cover and the sealed cabin form a sealed space, the antenna is positioned in the sealed space, and temperature control equipment is also arranged at the bottom outside the sealed cabin; the antenna is a waveguide antenna, a vibrator antenna or a ridge horn antenna, and the material of the antenna has the characteristics of stable thermal expansion coefficient and large expansion coefficient.
Further, the material of the antenna is diamond copper or diamond aluminum.
The utility model adopts the technical scheme to produce the beneficial effects that:
1. the utility model utilizes the characteristics of expansion with heat and contraction with cold of the material, selects a material with stable thermal expansion coefficient and large expansion coefficient, selects the novel composite material diamond aluminum, has good electric conduction, is processed into various parts required by the waveguide antenna, and ensures that all size changes are consistent when the temperature changes. The periphery of the antenna is sealed, heat exchange is reduced, a wave-transmitting window is arranged on the radiation end face of the antenna, the active part of the antenna is arranged outside the sealed cabin in consideration of the fact that an active device cannot meet the requirement of temperature change, the antenna with different frequencies can be obtained by adjusting the temperature in the sealed cabin and changing the electrical size of the antenna, and the requirement of antenna frequency conversion is met.
2. The frequency of the antenna can be adjusted at will within a certain range; when the incoming wave frequency of the antenna is not clear, the method is used for searching a target, so that the number of the antennas can be reduced; the method is suitable for Ku frequency bands, and can be popularized to other frequency bands.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a side view of the structure of fig. 1.
Fig. 3 is a top view of the structure of the antenna frequency conversion.
Fig. 4 is a Ku frequency conversion antenna according to an embodiment of the present invention.
Fig. 5 is a waveguide array antenna according to an embodiment of the present invention.
Fig. 6 is an exemplary array antenna according to an embodiment of the present invention.
Fig. 7 is an illustrative ridge horn antenna of an embodiment of the present invention.
In the figure: 1. wave-transmitting cover, 2, sealed cabin, 3, temperature control equipment.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
An antenna for realizing frequency change by utilizing temperature change comprises an antenna, a wave-transmitting cover and a sealed cabin, wherein the wave-transmitting cover is arranged at the top of the sealed cabin, the wave-transmitting cover and the sealed cabin form a sealed space, the antenna is positioned in the sealed space, and temperature control equipment is further arranged at the outer bottom of the sealed cabin 3; the antenna is a waveguide antenna, a vibrator antenna or a ridge horn antenna, and the material of the antenna has the characteristics of stable thermal expansion coefficient and large expansion coefficient.
Further, the material of the antenna is diamond copper or diamond aluminum.
The following is a more specific example:
referring to fig. 1 to 3, the antenna of the embodiment selects and uses novel metal composite materials such as diamond copper, diamond aluminum and the like, the materials have good electric conduction and heat conduction characteristics, the thermal expansion of the antenna is stable, the expansion coefficient is large and reaches 80 μm/K, the antenna structure is formed by processing the metal composite materials, the antenna is sealed in a space, temperature control equipment 3 is arranged in the space, the periphery of the antenna is sealed and treated to reduce heat exchange, a wave-transmitting cover 1 is arranged on the radiation end face of the antenna, and the radiation frequency of the antenna is changed by changing the temperature of the antenna structure. The Ku frequency band waveguide antenna with the frequency of 12GHz is located in an environment of 20 ℃, the side length of a waveguide port of the Ku frequency band waveguide antenna is 15mm, the whole antenna is located in a sealed environment, when the environment temperature of an antenna unit is reduced to-100 ℃, the waveguide port of the Ku frequency band waveguide antenna is 14.856mm, according to the current size, the radiation frequency of the Ku frequency band waveguide antenna is 12.12GHz, when the environment temperature of the antenna unit is reduced to +150 ℃, the waveguide port of the Ku frequency band waveguide antenna is 15.156mm, according to the current size, the radiation frequency of the Ku frequency band waveguide antenna is 11.87GHz, and the change of the antenna frequency within the range of 11.87 GHz-12.12 GHz can be realized by adjusting the environment temperature of the temperature antenna unit. The method is popularized to the antenna forms of waveguide arrays, ridge horns and the like which are all processed by metal.
The temperature control device and the antenna rear end device are located at the bottom of the sealed cabin, the antenna array surface and the supporting structure are located in the sealed cabin, the antenna and the inner wall of the sealed cabin are electrically connected through a cable, a sealed connector is installed on the wall of the sealed cabin, and a wave-transmitting cover is arranged at the upper end of the antenna array surface. Fig. 4 is a Ku frequency conversion antenna unit, which is an antenna used in the present embodiment; fig. 5 to 7 are a waveguide array antenna, an array antenna and a ridge horn antenna in sequence.
Claims (2)
1. An antenna for realizing frequency change by utilizing temperature change comprises an antenna and is characterized by further comprising a wave-transmitting cover (1) and a sealed cabin (2), wherein the wave-transmitting cover is arranged at the top of the sealed cabin, the wave-transmitting cover and the sealed cabin form a sealed space, the antenna is located in the sealed space, and temperature control equipment (3) for changing the temperature in the sealed space is further arranged at the bottom outside the sealed cabin; the antenna is a waveguide antenna, a vibrator antenna or a ridge horn antenna, and the material of the antenna has the characteristics of stable thermal expansion coefficient and large expansion coefficient.
2. The antenna for realizing frequency change by utilizing temperature change as claimed in claim 1, wherein the material of the antenna is diamond copper or diamond aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220622541.8U CN217009547U (en) | 2022-03-22 | 2022-03-22 | Antenna for realizing frequency change by utilizing temperature change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220622541.8U CN217009547U (en) | 2022-03-22 | 2022-03-22 | Antenna for realizing frequency change by utilizing temperature change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217009547U true CN217009547U (en) | 2022-07-19 |
Family
ID=82370310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220622541.8U Active CN217009547U (en) | 2022-03-22 | 2022-03-22 | Antenna for realizing frequency change by utilizing temperature change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217009547U (en) |
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2022
- 2022-03-22 CN CN202220622541.8U patent/CN217009547U/en active Active
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