Symmetrical wideband fiberglass antenna

Abstract

The utility model discloses symmetrical big broadband glass steel antenna includes first connecting head, second connecting head, spring steel, aluminium pipe, lower vibrator, upper vibrator and glass fiber pole, and the first end of second connecting head is screwed with first connecting head, and the second end of spring steel is connected with second connecting head, and the second end of spring steel is equipped with the coaxial connecting line, and third connecting head is set on the coaxial connecting line and is connected with the second end of spring steel, and the side of third connecting head away from spring steel is equipped with external thread, and aluminium pipe sets up on the coaxial connecting line and is connected with the external thread of third connecting head, and lower vibrator sets up on the coaxial connecting line and is spaced apart with aluminium pipe, and upper vibrator sets up on the coaxial connecting line and is symmetrical with lower vibrator, and upper vibrator sets up the side of lower vibrator away from aluminium pipe and is adjacent with lower vibrator setting. The utility model has simple structure, and has the advantages such as big broadband and weather resistance, light weight etc.

Description

Technical Field

[0001] This utility model belongs to the field of antenna technology, specifically relating to a symmetrical wideband fiberglass antenna. Background Technology

[0002] With the continuous advancement of the communications industry, from 1G to today's 5G, key communication technologies have changed, and the amount of information processed has increased exponentially. Antennas are an indispensable component in achieving this leap forward. Whether it's a base station or a mobile terminal, the antenna acts as an intermediary for transmitting and receiving signals. However, existing fiberglass antennas only have a bandwidth of 100... With a frequency of MHz and a weight exceeding 800g, it is primarily used in outdoor, multi-device collaboration, and extreme environment scenarios. Specifically, it is applied in multi-generational mobile communication, IoT and smart cities, extreme environment communication, emergency response, and public safety. In multi-generational mobile communication, it serves as a base station backhaul antenna, supporting data transmission speeds above 200Mbps with latency <5ms, adapting to the high-frequency requirements of 5G-A. In IoT and smart city applications, it covers frequency bands such as 433MHz, 900MHz, and 2.4GHz, connecting intelligent sensors and monitoring equipment. Specifically in intelligent transportation, it enables real-time multi-frequency communication between vehicles and infrastructure. In extreme communication environments such as coastal areas or oil fields, it is resistant to salt spray and corrosion, replacing easily rusting metal antennas. It withstands high and low temperatures in desert or polar environments, serving as a core device for microwave relay stations. In emergency response and public safety, it can be used for drone countermeasures, acting as a directional, high-bandwidth antenna to block drone image transmission / navigation links. It can also maintain uninterrupted communication during disaster relief efforts after typhoons and heavy rains, supporting emergency command.

[0003] Therefore, fiberglass antennas are widely used, but the current fiberglass antennas still do not have ideal performance in terms of wide bandwidth, weather resistance, and lightweight, and need further improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a symmetrical wideband fiberglass antenna that is simple in structure and combines wide bandwidth with weather resistance and lightweight properties.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: Symmetrical wideband fiberglass antenna, including: First connector; The second connector has its first end threadedly connected to the first connector. The spring steel has its first end connected to the second end of the second connector, and the second end of the spring steel is provided with a coaxial connecting line. The third connector is located on the coaxial connecting line and connected to the second end of the spring steel. The side of the third connector away from the spring steel has an external thread. An aluminum tube is installed on the coaxial connecting line and connected to the external thread of the third connector. The lower vibrator is set on the coaxial connecting line and spaced apart from the aluminum tube; The upper vibrator is set on the coaxial connecting line. The upper vibrator and the lower vibrator are symmetrically arranged facing each other. The upper vibrator is located on the side of the lower vibrator away from the aluminum tube and is adjacent to the lower vibrator. And fiberglass rods, which are sleeved on the upper and lower vibrators and connected to the aluminum tube on the side of the fiberglass rod closest to the aluminum tube.

[0006] Preferably, the fiberglass rod is provided with an aluminum cap on the side away from the aluminum tube.

[0007] Preferably, the left part of the lower vibrator is cylindrical and the right part of the lower vibrator is trapezoidal, the left part of the upper vibrator is trapezoidal and the right part of the upper vibrator is cylindrical, the length of the lower vibrator is 26mm, the length of the upper vibrator is 26mm, the diameter of the left part of the lower vibrator is 18mm, and the diameter of the right part of the upper vibrator is 18mm.

[0008] Preferably, the fiberglass rod is 131mm long and the aluminum cap is 12mm long.

[0009] Preferably, the length of the first connector is 31mm.

[0010] Preferably, the spring steel has a length of 104 mm and a diameter of 15 mm.

[0011] Preferably, the length of the second connector is 26mm.

[0012] Preferably, the length of the third connector is 32mm.

[0013] Preferably, the aluminum tube is 33mm in length.

[0014] Preferably, the antenna covers a continuous frequency band of 2000MHz-3000MHz.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects: This invention features a symmetrical lower and upper vibrator, primarily designed with symmetrical dimensions. Combined with spring steel and coaxial connecting wires, it enables wideband signal reception. The fiberglass rod design gives it weather resistance and lightweight characteristics. Through the above structural design, this invention combines the dual advantages of "wideband signal transmission" and "weather resistance and lightweight fiberglass," making it suitable for multi-frequency communication scenarios. The overall structure is simple and rationally designed. In summary, this utility model has the advantages of simple structure, wide width, weather resistance, and lightweight. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Exploded view; The components include: first connector 1, second connector 2, spring steel 3, third connector 4, aluminum tube 5, lower vibrator 6, upper vibrator 7, fiberglass rod 8, aluminum cap 9, and coaxial connecting wire 10. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1 In this embodiment, a symmetrical wideband fiberglass antenna is proposed, which combines wideband coverage with weather resistance and lightweight properties.

[0023] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the symmetrical wideband fiberglass antenna of the present invention includes a first connector 1, a second connector 2, a spring steel 3, a third connector 4, an aluminum tube 5, a lower vibrator 6, an upper vibrator 7, and a fiberglass rod 8. In the present invention, the length of the first connector 1 is 31mm, the diameter of the leftmost part of the first connector 1 is 8.4mm, the diameter of the rightmost part is 5mm, and the right middle part of the first connector 1 is provided with an external thread to facilitate connection with the second connector 2. The second connector 2 is threaded to the first connector 1 at its first end. The second connector 2 is 26mm long. The spring steel 3 is connected to the second end of the second connector 2 at its first end. The second end of the spring steel 3 is provided with a coaxial connecting line 10. The spring steel 3 is 104mm long and 15mm in diameter. The third connector 4 is located on the coaxial connecting line 10 and connected to the second end of the spring steel 3. The side of the third connector 4 away from the spring steel 3 is provided with an external thread. The aluminum tube 5 is located on the coaxial connecting line 10 and connected to the external thread of the third connector 4. The third connector 4 is 32mm long. The lower vibrator 6 is located on the coaxial connecting line 10 and spaced apart from the aluminum tube 5. The upper vibrator 7 is located on the coaxial connecting line 10. The upper vibrator 7 and the lower vibrator 6 are symmetrically arranged facing each other (mainly because the upper vibrator 7 and the lower vibrator 6 are symmetrical in size, but their structural shapes are slightly different). The upper vibrator 7 is located on the side of the lower vibrator 6 away from the aluminum tube 5 and is adjacent to the lower vibrator 6. The left part of the lower vibrator 6 is cylindrical and the right part of the lower vibrator 6 is trapezoidal. The left part of the upper vibrator 7 is trapezoidal and the right part of the upper vibrator 7 is cylindrical. The length of the lower vibrator 6 is 26mm, the length of the upper vibrator 7 is 26mm, the diameter of the left part of the lower vibrator 6 is 18mm, and the diameter of the right part of the upper vibrator 7 is 18mm. A fiberglass rod is sleeved on the upper vibrator 7 and the lower vibrator 6, and the side of the fiberglass rod closest to the aluminum tube 5 is connected to the aluminum tube 5. The length of the fiberglass rod is 131mm, and the length of the aluminum tube 5 is 33mm. Please continue to refer to Figure 1 and Figure 2 An aluminum cap 9 is provided on the side of the fiberglass rod away from the aluminum tube 5, and the length of the aluminum cap 9 is 12mm.

[0024] The wide bandwidth in this invention is achieved by spring steel 3, lower vibrator 6, upper vibrator 7, and coaxial connecting line 10. Fiberglass rod 8 does not directly participate in the reception of wide bandwidth signals; it plays a supporting and protective role. Spring steel 3, as the radiator, directly widens the bandwidth to meet the wide bandwidth requirements of the low-frequency band. Spring steel 3 is the core material of the "spring-shaped radiating element." Through physical morphology optimization and vibration characteristics, the resonant frequency range can be directly adjusted, which is the key to achieving wide bandwidth in the low-frequency fiberglass antenna. It can adjust the resonant frequency or widen the bandwidth by using vibration. The elastic vibration of spring steel 3 can change the equivalent length of the radiator to adapt to different frequency band electromagnetic wave wavelengths, avoiding single-frequency limitations. At the same time, it absorbs environmental vibrations to ensure the stability of wideband signals. The symmetrical wide bandwidth fiberglass antenna of this invention covers a continuous frequency band of 2000MHz-3000MHz. The lower oscillator 6 and the upper oscillator 7 are also existing technologies. Through structural design (such as metallized via coupling, loading plate optimization, and cross-feeding), they can break through the bandwidth limitation of a single oscillator and are the core of broadband in the mid-to-high frequency band (such as 2.4GHz and 5G band). The coaxial connecting line 10 is not only a signal transmission carrier, but also ensures signal matching and low-loss transmission in the broadband band through "feeding connection + impedance optimization". It is an important aid to broadband realization. The fiber rod is a component of the fiberglass shell. Its core function is "physical support and environmental protection". It can reduce weight, improve weather resistance (such as anti-smog and anti-wind), fix the radiator structure, and protect the lower oscillator 6, upper oscillator 7 and other components from the effects of harsh environments.

[0025] More specifically, in terms of electrical performance, industry-standard fiberglass antennas operate in a frequency range of 800MHz-5.8GHz (such as private networks, Wi-Fi, and other low, medium, and high frequency scenarios), with a gain of 3dBi-15dBi (omnidirectional antennas are mostly 3-8dBi, and directional antennas, such as those used in anti-drone scenarios, can reach 8-15dBi), a VSWR of ≤1.8 (superior) to ≤2.5 (standard), an input impedance of 45Ω-55Ω (50Ω is the mainstream), a bandwidth of 100MHz-600MHz (continuous bandwidth), and a power capacity of 33dBm (approximately 2W) to 20. 0W (high power capacity is suitable for base stations and anti-drone applications, while low power is mostly used for IoT terminals), while the symmetrical wideband fiberglass antenna of this utility model focuses on the 2000MHz-3000MHz continuous frequency band (suitable for 5G-A, IoT and other application scenarios). The gain is about 5-8dBi compared with similar wideband antennas, the VSWR is about ≤2.0 compared with industry wideband antennas, the input impedance is 50Ω by default, the bandwidth is significantly higher than that of conventional fiberglass antennas, the power capacity is about 50-100W, and the overall focus is more on mid-high frequency and wideband characteristics.

[0026] Regarding mechanical performance and environmental parameters, the overall weight range of industry-standard antennas is 200g-1500g. Core components commonly use pure copper and aluminum, while the outer shell is made of SMC-molded fiberglass. The interface is a copper-plated nickel N-type male connector, and the overall length is 300mm-1500mm (longer sizes are mostly used for microwave repeaters). Installation methods include direct equipment mounting, bracket mounting, and pole mounting (outdoor compatibility with 50-100mm diameter poles). The overall weight of this application is estimated at 300-500g (adopting a miniaturized design, fiberglass is more than 50% lighter than metal antennas). The radiating / transmission components are made of spring steel, with an overall length of approximately 350mm. The installation method is based on the industry standard outdoor antenna's "direct equipment mounting + bracket adaptation". In terms of environment, the operating temperature of industry-standard antennas is -40℃ to +70℃, and the storage temperature is... -45℃ to +85℃, protection level IP65 (standard) to IP67 (high protection), salt spray resistance 48-1000 hours (neutral salt spray, coastal scenarios require more than 200 hours), wind resistance 45m / s (level 12 wind) to 55m / s (level 13 wind), damp heat resistance 5%-95% relative humidity, anti-aging lifespan 5-15 years, shock resistance 10-50Hz; This application's default operating temperature is -40℃ to +70℃, storage temperature is -45℃ to +85℃, protection level IP65, salt spray resistance 96 hours (neutral salt spray), wind resistance reference 50m / s, damp heat resistance 5%-95% relative humidity, anti-aging lifespan reference 10 years or more, and shock resistance reference industry standard level. In addition, the fiberglass rod sealing design prevents condensation, and the threaded connection of the components improves shock resistance, making it suitable for extreme environments.

[0027] The parameters of the symmetrical wideband fiberglass antenna in this application are significantly affected by the application scenario. This application focuses on the requirements of mid-to-high frequency, wide bandwidth and weather resistance, and is adapted to 5G-A and Internet of Things scenarios. Its core performance is more superior, while the industry-standard parameters cover low, mid and high frequency, multiple power and multiple protection levels.

[0028] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A symmetrical wideband fiberglass antenna, characterized in that, include: First connector; The second connector has its first end threadedly connected to the first connector. The spring steel has its first end connected to the second end of the second connector, and the second end of the spring steel is provided with a coaxial connecting line. The third connector is located on the coaxial connecting line and connected to the second end of the spring steel. The side of the third connector away from the spring steel has an external thread. An aluminum tube is installed on the coaxial connecting line and connected to the external thread of the third connector. The lower vibrator is set on the coaxial connecting line and spaced apart from the aluminum tube; The upper vibrator is set on the coaxial connecting line. The upper vibrator and the lower vibrator are symmetrically arranged facing each other. The upper vibrator is located on the side of the lower vibrator away from the aluminum tube and is adjacent to the lower vibrator. And fiberglass rods, which are sleeved on the upper and lower vibrators and connected to the aluminum tube on the side of the fiberglass rod closest to the aluminum tube.

2. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The fiberglass rod is fitted with an aluminum cap on the side away from the aluminum tube.

3. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The left part of the lower vibrator is cylindrical, and the right part of the lower vibrator is trapezoidal. The left part of the upper vibrator is trapezoidal, and the right part of the upper vibrator is cylindrical. The length of the lower vibrator is 26mm, the length of the upper vibrator is 26mm, the diameter of the left part of the lower vibrator is 18mm, and the diameter of the right part of the upper vibrator is 18mm.

4. The symmetrical wideband fiberglass antenna according to claim 2, characterized in that: The fiberglass rod is 131mm long, and the aluminum cap is 12mm long.

5. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The length of the first connector is 31mm.

6. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The spring steel has a length of 104 mm and a diameter of 15 mm.

7. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The second connector is 26mm long.

8. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The length of the third connector is 32mm.

9. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The aluminum tube is 33mm long.

10. The symmetrical wideband fiberglass antenna according to claim 1, characterized in that: The antenna covers a continuous frequency band of 2000MHz-3000MHz.

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