Ultra-high temperature resistant antenna

Abstract

This application discloses an ultra-high temperature resistant antenna, including a housing, a radiating element disposed inside the housing, a fire-resistant coaxial radio frequency cable including a first conductor and a first high-temperature resistant insulator surrounding the first conductor, the fire-resistant coaxial radio frequency cable extending from the outside of the housing to the inside of the housing, and the first conductor being electrically connected to the radiating element; and a high-temperature resistant connector including a second conductor and a second high-temperature resistant insulator surrounding the second conductor, the high-temperature resistant connector being connected to the portion of the fire-resistant coaxial radio frequency cable located outside the housing, and the first conductor being electrically connected to the second conductor. This application places the antenna's radiating element inside the high-temperature resistant housing and connects it externally via a high-temperature resistant cable and connector, achieving overall high-temperature resistance for the antenna, making the antenna device fire-resistant and high-temperature resistant, and able to operate normally in high-temperature environments without deformation or damage.

Description

Technical Field

[0001] This application relates to the field of communication equipment technology, and more specifically to an antenna resistant to ultra-high temperatures. Background Technology

[0002] To address public safety and emergency management situations, uninterrupted communication is crucial in extremely high-temperature environments, such as during fires, requiring 2-4 hours of continuous signal transmission. This necessitates indoor antennas in venues capable of withstanding temperatures up to 1000 degrees Celsius for at least two hours to support search and rescue operations for personnel and property. High-temperature resistant antenna technology can also be used in wireless communication equipment operating in high-temperature environments, such as high-speed aircraft and power line inspections, urgently requiring solutions to address the impact of high temperatures on antenna performance. However, existing antennas operate within a temperature range of -40 to 60 degrees Celsius. In extremely high-temperature environments, their structure and materials undergo severe deformation, leading to serious equipment damage and communication disruptions. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this application is to provide an antenna resistant to ultra-high temperatures, thereby effectively solving the above-mentioned technical problems.

[0004] To achieve the above objectives, this application adopts the following technical solution: This application provides an ultra-high temperature resistant antenna, comprising: case, The radiation unit is disposed inside the housing. Fire-resistant coaxial RF cables, including A first conductor and a first high-temperature resistant insulator surrounding the first conductor; the fire-resistant coaxial radio frequency cable extends from the outside of the housing to the inside of the housing; and the first conductor is electrically connected to the radiating unit. High-temperature resistant connectors, including The second conductor and the second high-temperature resistant insulator surrounding the second conductor, the high-temperature resistant connector being connected to the portion of the fire-resistant coaxial radio frequency cable located outside the housing, and the first conductor being electrically connected to the second conductor.

[0005] Furthermore, the housing includes an upper cover and a lower cover, the radiating unit is disposed in the internal area formed by the upper cover and the lower cover, and a through hole is formed at the bottom of the lower cover, through which the fire-resistant coaxial radio frequency cable passes and connects to the radiating unit.

[0006] Furthermore, a ceramic mounting fastener is provided below the lower cover at the location of the through hole. The ceramic mounting fastener is fixed to the bottom surface of the lower cover by screws, and the ceramic mounting fastener is arranged around the periphery of the fire-resistant coaxial radio frequency cable.

[0007] Furthermore, the radiation unit includes a first radiator and a second radiator, wherein, The feed branch extending from the first radiator is embedded inside the second radiator to form a coupling. Both the first and second radiators have hollowed-out portions, and the second radiator has matching branches.

[0008] Furthermore, the first conductor of the fire-resistant coaxial radio frequency cable and the second conductor of the high-temperature resistant connector respectively include an inner conductor, an insulating medium, an outer conductor, and a sheath, wherein, The insulating medium wraps around the inner conductor, the outer conductor wraps around the insulating medium to separate the inner conductor from the outer conductor, and the sheath wraps around the outer conductor.

[0009] Furthermore, the inner conductor of the first conductor is soldered to the pad of the first radiator, and the outer conductor of the first conductor is soldered to the pad of the second radiator.

[0010] Furthermore, the inner conductor of the first conductor is electrically connected to the inner conductor of the second conductor, and the outer conductor of the first conductor is electrically connected to the outer conductor of the second conductor.

[0011] Beneficial effects This application provides an ultra-high temperature resistant antenna, in which the antenna's radiating element is placed inside a high-temperature resistant housing and connected externally via high-temperature resistant cables and connectors, thereby achieving the overall high-temperature resistance of the antenna. This makes the antenna device fire-resistant and high-temperature resistant, and it can work normally in high-temperature environments without deformation or damage. Attached Figure Description

[0012] The accompanying drawings are provided to illustrate the technical solutions of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure. The shapes and sizes of the components in the drawings do not reflect actual proportions and are only intended to illustrate the content of this application.

[0013] Figure 1 A schematic diagram of the overall structure of an ultra-high temperature resistant antenna provided in an embodiment of this application. Figure 1 .

[0014] Figure 2 A schematic diagram of the overall structure of an ultra-high temperature resistant antenna provided in an embodiment of this application. Figure 2 .

[0015] In the above attached figures, 1. Top cover; 2. Bottom cover; 3. First radiator; 4. Second radiator; 5. Fire-resistant coaxial radio frequency cable; 51. First conductor; 52. First high-temperature resistant insulator; 6. High-temperature resistant connector; 61. Second conductor; 62. Second high-temperature resistant insulator; 7. Ceramic mounting fastener. Detailed Implementation

[0016] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0017] Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this document, "electrical connection" includes the situation where constituent elements are connected together by an element having some electrical function. There is no particular limitation on the "electrically functioning element," as long as it enables the transmission and reception of electrical signals between the connected constituent elements. An "electrically functioning element" can be, for example, an electrode or wiring, a switching element such as a transistor, or other functional elements such as a resistor, inductor, or capacitor. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0018] In this application, the terms "upper," "lower," "inner," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0019] Example One embodiment of this application provides an antenna resistant to ultra-high temperatures, such as... Figure 1-2 As shown, the antenna includes The housing consists of an upper cover and a lower cover, both of which are made of high-temperature resistant materials and will not deform even in extreme high-temperature environments. An internal installation area is formed between the upper and lower covers.

[0020] The radiating unit includes a first radiator (large radiator) and a second radiator (small radiator). The radiating unit is installed between the upper and lower covers to form an internal mounting area. Both the first and second radiators are radiating sheets made of high-temperature resistant materials such as stainless steel, copper, and nickel. The feed branch extending from the first radiator is embedded into the interior of the second radiator to form coupling, which is beneficial for impedance matching in a wide frequency band. Both the first and second radiators have hollowed-out parts, and the second radiator has matching branches, which can improve the current distribution between the radiating units, thereby achieving miniaturization and broadband operation.

[0021] A fire-resistant coaxial radio frequency cable includes a first conductor and a first high-temperature resistant insulator surrounding the first conductor. A through-hole is provided at the bottom of the lower cover, through which the fire-resistant coaxial radio frequency cable passes and connects to a radiating unit inside the housing. A ceramic mounting fastener is located below the lower cover at the through-hole position, and is fixedly installed with a screw below the lower cover. The ceramic mounting fastener surrounds the periphery of the fire-resistant coaxial radio frequency cable. The first conductor includes an inner conductor, an insulating layer, an outer conductor, and a sheath. The insulating medium surrounds the inner conductor, and the outer conductor surrounds the... The insulator is external to separate the inner conductor and the outer conductor. A metal sheath is wrapped around the outer conductor. The inner conductor of the first conductor is soldered to the pads of the first radiator, and the outer conductor of the first conductor is soldered to the pads of the second radiator. The inner conductor is made of materials such as stainless steel, copper, and nickel. The sheath is made of materials such as stainless steel, copper, nickel, and glass fiber. The outer conductor is made of materials such as stainless steel, copper, and nickel. The insulator is made of high-temperature resistant materials such as silicon dioxide / silicon carbide and precision ceramics. The entire fire-resistant coaxial radio frequency cable can achieve fire resistance and high temperature resistance and can work normally in extreme high-temperature environments.

[0022] The high-temperature resistant connector includes a second conductor and a second high-temperature resistant insulator surrounding the second conductor. The high-temperature resistant connector is connected to the portion of the fire-resistant coaxial radio frequency cable located outside the housing, and the first conductor and the second conductor are electrically connected. The second conductor of the high-temperature resistant connector and the first conductor of the fire-resistant coaxial radio frequency cable have the same structure. The inner conductor of the first conductor is electrically connected to the inner conductor of the second conductor, and the outer conductor of the first conductor is electrically connected to the outer conductor of the second conductor.

[0023] This embodiment provides an ultra-high temperature resistant antenna. The core components of the device are all made of fire-resistant materials. Through advanced welding technology, each component affecting electrical performance is effectively integrated into a whole. In addition to possessing all the performance characteristics of ordinary antennas, the most important feature is that it can operate normally for 2-4 hours under extreme high temperature (greater than 1000℃). This high temperature resistant antenna is a DAS product, which is small in size and has strong performance. When placed inside a building, it can stably transmit radio signals under normal temperature and extreme high temperature conditions.

[0024] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. A high-temperature resistant antenna, characterized in that: include: case, The radiation unit is disposed inside the housing. Fire-resistant coaxial RF cables, including A first conductor and a first high-temperature resistant insulator surrounding the first conductor; the fire-resistant coaxial radio frequency cable extends from the outside of the housing to the inside of the housing; and the first conductor is electrically connected to the radiating unit. High temperature resistant connectors, including The second conductor and the second high-temperature resistant insulator surrounding the second conductor, the high-temperature resistant connector being connected to the portion of the fire-resistant coaxial radio frequency cable located outside the housing, and the first conductor being electrically connected to the second conductor.

2. The ultra-high temperature resistant antenna as described in claim 1, characterized in that: The housing includes an upper cover and a lower cover. The radiating unit is disposed in the internal area formed by the upper cover and the lower cover. A through hole is provided at the bottom of the lower cover, and the fire-resistant coaxial radio frequency cable passes through the through hole and is connected to the radiating unit.

3. The ultra-high temperature resistant antenna as described in claim 2, characterized in that: A ceramic mounting fastener is provided below the lower cover at the location of the through hole. The ceramic mounting fastener is fixed to the bottom surface of the lower cover by screws. The ceramic mounting fastener is arranged around the periphery of the fire-resistant coaxial radio frequency cable.

4. The ultra-high temperature resistant antenna as described in claim 1, characterized in that: The radiation unit includes a first radiator and a second radiator, wherein... The feed branch extending from the first radiator is embedded inside the second radiator to form a coupling. Both the first and second radiators have hollowed-out portions, and the second radiator has matching branches.

5. The ultra-high temperature resistant antenna as described in claim 4, characterized in that: The first conductor of the fire-resistant coaxial radio frequency cable and the second conductor of the high-temperature resistant connector each include an inner conductor, an insulating medium, an outer conductor, and a sheath. The insulating medium wraps around the inner conductor, the outer conductor wraps around the insulating medium to separate the inner conductor from the outer conductor, and the sheath wraps around the outer conductor.

6. The ultra-high temperature resistant antenna as described in claim 5, characterized in that: The inner conductor of the first conductor is soldered to the pad of the first radiator, and the outer conductor of the first conductor is soldered to the pad of the second radiator.

7. The ultra-high temperature resistant antenna as described in claim 5, characterized in that: The inner conductor of the first conductor is electrically connected to the inner conductor of the second conductor, and the outer conductor of the first conductor is electrically connected to the outer conductor of the second conductor.

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