Ultra-wideband antenna based on dielectric loading technology

Abstract

The utility model discloses an ultra wide band antenna based on a medium loading technology, comprising an antenna housing, the upper surface of the antenna housing is provided with a through hole, the interior of the through hole is fixedly connected with a fixed rod, the interior of the fixed rod is provided with a storage groove, the interior of the fixed rod is slidably connected with an antenna rod, and the antenna rod is provided with a through hole. The top end of the antenna rod is provided with a notch, the interior of the notch is rotatably connected with four antennas through a shaft rod, the number of the antennas is four, the four antennas are in a cross shape, and an antenna shell is made of a glass fiber composite material; the antenna housing comprises a base, an equipment bin is arranged in the base, an electric telescopic rod is fixedly connected to the inner bottom surface of the equipment bin, and the output end of the electric telescopic rod is fixedly connected with the bottom end of an antenna rod, so that the antenna housing can adapt to supporting and medium loading of an antenna structure, and the characteristics of miniaturization, light weight, multi-band working and the like of the antenna are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-wideband antenna devices, in particular to an ultra-wideband antenna based on a dielectric loading technology. Background Art

[0002] An ultra-wideband antenna is an antenna that can cover a very wide frequency band. It can usually cover multiple frequency bands within one antenna structure, so it can be suitable for communications or radar systems of various frequencies. Ultra-wideband antennas are also used for close-range detection. They are a new type of antenna with a bandwidth of the GHz order of magnitude and are widely used in high-resolution radars, precise positioning systems, and other areas.

[0003] Ultra-wideband antennas are developed based on conventional narrowband antennas. Their main research content is to explore the new theories, technologies and methods brought to antennas after the greatly expanded bandwidth, such as spectrum monitoring, radar systems, communication systems, and wireless positioning systems. In these applications, ultra-wideband antennas need to be carried to provide flexibility and a wide frequency coverage range. However, the structure of existing ultra-wideband antennas is a bit inconvenient to carry. Some have poor support and stability, and some have weak flexibility in multi-band operation. Therefore, in order to achieve the characteristics of ultra-wideband antennas that are small and precise, small and light, we propose an ultra-wideband antenna based on dielectric loading technology to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an ultra-wideband antenna based on dielectric loading technology. The antenna shell has the characteristics of light weight, high strength, and high temperature resistance through glass fiber composite materials, so that the antenna shell can adapt to the support and dielectric loading of the antenna structure, such as ensuring the stability and reliability of the antenna structure, and improving the frequency bandwidth, gain and radiation characteristics of the antenna, etc., and the antenna rod is pushed and pulled by an electric telescopic rod, so that the antenna can be stored, thereby realizing the miniaturization, lightweight and multi-band operation of the antenna.

[0005] The utility model also provides an ultra-wideband antenna based on the dielectric loading technology, comprising: an antenna shell, the upper surface of the antenna shell is provided with a through hole, a fixing rod is fixedly connected inside the through hole, a storage groove is provided inside the fixing rod, an antenna rod is slidably connected inside the fixing rod, a notch is provided at the top of the antenna rod, an antenna is rotatably connected inside the notch through an axle rod, four antennas are provided, the four antennas are in a cross shape, and the antenna shell is made of glass fiber composite material; a base, an equipment compartment is provided inside the base, an electric telescopic rod is fixedly connected to the inner bottom surface of the equipment compartment, and the output end of the electric telescopic rod is fixedly connected to the bottom end of the antenna rod.

[0006] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the inner bottom surface of the equipment compartment is fixedly connected with a feeding structure, which is used to input or output radio frequency signals from the antenna to improve the efficiency and matching performance of the antenna.

[0007] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the feed structure is composed of a transmission line, a capacitor, a connector, a supporting shell and a shielding structure, and the shielding structure is mainly composed of a shielding cover, a filter, a grounding wire and a sealing ring. It is used to suppress the stray radiation of the feed structure itself and prevent the signal from being absorbed or radiated by the feed structure, thereby affecting the performance of the antenna.

[0008] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the supporting shell of the feeding structure is fixedly connected with a radiating element, and the radiating element is configured as an inverted horn, for transmitting and receiving wireless signals, and realizing operation within a wider frequency range.

[0009] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the material of the radiating element is set to silicon nitride material, and the end of the radiating element away from the base is fixedly connected to the fixing rod, which is used for dielectric loading of the antenna to improve performance.

[0010] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the position of the storage slot corresponds to the antenna, and the length and width of the storage slot are both greater than the length and width of the antenna, so as to be suitable for storing antennas of different models.

[0011] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the antenna housing and the base are threadedly connected, and the bottom surface of the base is fixedly connected with a mounting seat for easy disassembly and installation.

[0012] According to the ultra-wideband antenna based on dielectric loading technology described in the utility model, the bottom surface of the antenna housing is provided with heat dissipation holes, which are located at the connection between the antenna housing and the base, and are used to dissipate the heat generated by the operation of the electronic components inside the equipment compartment.

[0013] Beneficial Effects

[0014] 1. Compared with the existing technology, the antenna shell of the ultra-wideband antenna based on dielectric loading technology has the characteristics of light weight, high strength, and high temperature resistance through glass fiber composite materials, so that the antenna shell can adapt to the support and dielectric loading of the antenna structure, such as ensuring the stability and reliability of the antenna structure, and improving the frequency bandwidth, gain and radiation characteristics of the antenna, etc.

[0015] 2. Compared with the existing technology, the ultra-wideband antenna based on dielectric loading technology pushes and pulls the antenna rod through an electric telescopic rod, so that the antenna can be stored, thereby realizing the characteristics of miniaturization, lightweight and multi-band operation of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is the overall structural diagram of the ultra-wideband antenna based on dielectric loading technology of the utility model;

[0018] Figure 2 This is a schematic diagram of the storage state of the ultra-wideband antenna based on the dielectric loading technology of the utility model;

[0019] Figure 3 This is the internal structure diagram of the ultra-wideband antenna based on the dielectric loading technology of the utility model;

[0020] Figure 4 The utility model is an ultra-wideband antenna based on dielectric loading technology Figure 2 The enlarged view of point A in the middle;

[0021] Figure 5 The utility model is an ultra-wideband antenna based on dielectric loading technology Figure 3 Enlarged view of point B in the middle.

[0022] Legend:

[0023] 1. Antenna housing; 2. Base; 3. Mounting seat; 4. Fixing rod; 41. Storage slot; 5. Antenna rod; 6. Antenna; 61. Slot; 7. Electric telescopic rod; 8. Radiating element; 9. Heat dissipation hole; 10. Feeding structure. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-5The utility model embodiment is an ultra-wideband antenna based on dielectric loading technology, which includes: an antenna housing 1, which is used to protect the antenna 6 and the internal components and parts of the equipment compartment, and can also affect the radiation characteristics of the antenna. The upper surface of the antenna housing 1 is provided with a through hole for overlapping and connecting a fixing rod 4, and the fixing rod 4 is fixedly connected inside the through hole for the extension and contraction of the antenna rod 5. The fixing rod 4 is provided with a storage groove 41 inside for storing the antenna 6. The fixing rod 4 is slidably connected inside the fixing rod 4 for supporting the antenna 6. The top of the antenna rod 5 is provided with a notch 61 for installing the antenna 6. The groove The inside of the opening 61 is rotatably connected to an antenna 6 through an axial rod for receiving and transmitting signals. Four antennas 6 are provided, and the four antennas 6 are in a cross shape for increasing the frequency bandwidth of the antenna. The antenna housing 1 is made of a glass fiber composite material to adapt to the antenna structure and the support of the internal components of the equipment compartment. The base 2 has an equipment compartment inside for fixing and supporting the electric telescopic rod 7 and other components. The inner bottom surface of the equipment compartment is fixedly connected to the electric telescopic rod 7, and the output end of the electric telescopic rod 7 is fixedly connected to the bottom end of the antenna rod 5 for pushing and pulling the antenna rod 5 and the antenna 6 so that they can be stored.

[0026] The inner bottom surface of the equipment compartment is fixedly connected with a feeding structure 10, which is used to input or output the radio frequency signal from the antenna to improve the efficiency and matching performance of the antenna 6. The feeding structure 10 is composed of a transmission line, a capacitor, a connector, a supporting shell and a shielding structure. The shielding structure is mainly composed of a shielding cover, a filter, a grounding wire and a sealing ring, which is used to suppress the stray radiation of the feeding structure itself and prevent the signal from being absorbed or radiated by the feeding structure, affecting the performance of the antenna 6. The supporting shell of the feeding structure 10 is fixedly connected with a radiating element 8, which is set to an inverted horn shape, for transmitting and receiving wireless signals, and realizing operation within a wider frequency range, the radiation The material of the element 8 is set to silicon nitride material. The end of the radiation element 8 away from the base 2 is fixedly connected to the fixing rod 4, which is used for medium loading of the antenna 6 to improve performance. The position of the storage groove 41 corresponds to the antenna 6. The length and width of the storage groove 41 are both larger than the length and width of the antenna 6, which is convenient for storing antennas 6 of different models. The antenna housing 1 and the base 2 are set to be threadedly connected. The bottom surface of the base 2 is fixedly connected with a mounting seat 3 for easy disassembly and installation. The bottom surface of the antenna housing 1 is provided with a heat dissipation hole 9, which is located at the connection between the antenna housing 1 and the base 2, and is used to dissipate the heat generated by the operation of the electronic components inside the equipment compartment.

[0027] Working principle: When using the ultra-wideband antenna based on dielectric loading technology, the electric telescopic rod 7 pushes the antenna rod 5, so that the antenna rod 5 is pushed out of the fixed rod 4, and the antenna 6 is also pushed out of the storage groove 41. The four antennas 6 are unfolded in the slot 61 through the shaft rod. The feeding structure 10 connected to the equipment compartment inside the base 2 is connected to the antenna 6 through a connector, and the radio frequency signal is input or output from the antenna. After the antenna housing 1 and the radiation element 8 are made of dielectric materials, the frequency bandwidth, gain and radiation characteristics of the antenna 6 can be improved.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An ultra-wideband antenna based on dielectric loading technology, characterized in that: include: An antenna housing (1), wherein a through hole is provided on the upper surface of the antenna housing (1), a fixing rod (4) is fixedly connected inside the through hole, a storage groove (41) is provided inside the fixing rod (4), an antenna rod (5) is slidably connected inside the fixing rod (4), a notch (61) is provided at the top end of the antenna rod (5), an antenna (6) is rotatably connected inside the notch (61) via a shaft, four antennas (6) are provided, and the four antennas (6) are in a cross shape; the antenna housing (1) is made of a glass fiber composite material; A base (2), wherein an equipment compartment is arranged inside the base (2), an electric telescopic rod (7) is fixedly connected to the inner bottom surface of the equipment compartment, and an output end of the electric telescopic rod (7) is fixedly connected to the bottom end of the antenna rod (5).

2. The ultra-wideband antenna based on dielectric loading technology according to claim 1, characterized in that: A feeding structure (10) is fixedly connected to the inner bottom surface of the equipment bin.

3. The ultra-wideband antenna based on dielectric loading technology according to claim 2, characterized in that: The feeding structure (10) is composed of a transmission line, a capacitor, a connector, a supporting shell and a shielding structure, wherein the shielding structure is mainly composed of a shielding cover, a filter, a grounding wire and a sealing ring.

4. The ultra-wideband antenna based on dielectric loading technology according to claim 2, characterized in that: A radiation element (8) is fixedly connected to the supporting shell of the feeding structure (10), and the radiation element (8) is configured in an inverted horn shape.

5. The ultra-wideband antenna based on dielectric loading technology according to claim 4, characterized in that: The material of the radiation element (8) is silicon nitride material, and one end of the radiation element (8) away from the base (2) is fixedly connected to the fixing rod (4).

6. The ultra-wideband antenna based on dielectric loading technology according to claim 1, characterized in that: The position of the storage slot (41) corresponds to the antenna (6), and the length and width of the storage slot (41) are both greater than the length and width of the antenna (6).

7. The ultra-wideband antenna based on dielectric loading technology according to claim 1, characterized in that: The antenna housing (1) and the base (2) are threadedly connected, and the bottom surface of the base (2) is fixedly connected to a mounting seat (3).

8. The ultra-wideband antenna based on dielectric loading technology according to claim 1, characterized in that: The bottom surface of the antenna housing (1) is provided with a heat dissipation hole (9), and the heat dissipation hole (9) is located at the connection between the antenna housing (1) and the base (2).

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