A full-metal antenna integrated with a radio frequency coaxial connector

Abstract

The embodiment of the present disclosure relates to a kind of radio frequency coaxial connector integrated full metal antenna.It includes: radiator part and the coaxial connector located at the bottom of radiator part;Radiator part includes: metal circular shell, a wedge-shaped slot is opened on metal circular shell;First metal cylinder, first metal cylinder is arranged in the inside of metal circular shell, and with the metal circular shell after opening wedge-shaped slot constitutes feed structure, and the top of first metal cylinder is provided with protruding part along horizontal direction;Vibrator radiation unit, vibrator radiation unit is respectively arranged in the top of metal circular shell two sides;Coaxial connector is arranged in the bottom of metal circular shell.The embodiment of the present disclosure is integrated with coaxial connector, realizes radio frequency integrated, improves the reliability of metal antenna, and reduces production cost.The metal antenna can serve as electromagnetic wave radiation unit while serving as system heat dissipation unit, and additional heat dissipation structural member is saved.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and more particularly to an all-metal antenna with an integrated radio frequency coaxial connector. Background Technology

[0002] Thinness, scalability, and low cost are the main development goals of modern active phased array antennas, and integrated design is an important technical method to achieve these goals. As system integration increases, the heat flux density inside the antenna also increases accordingly. Therefore, to ensure antenna reliability, meticulous thermal design is also very important.

[0003] In related technologies, most active phased array antennas currently require microstrip lines for connection from the radiator to the coaxial connector, resulting in complex manufacturing and poor heat dissipation. For example, in the integrated design of active phased array antennas, the application of active subarray integration and antenna frame integration was studied. In the thermal design research of Ka-band phased array antenna modules, a method was investigated that embeds liquid-cooled channels into the antenna substrate, utilizing moving liquid to reduce the impact of temperature rise on the antenna's electrical performance. In the research of a low-cost Ka-band tile-type active phased array antenna, an integrated phased array antenna integration method was proposed, using microwave multilayer printed circuit boards as the carrier and achieving integration through RF vertical interconnects and low-frequency pins.

[0004] Therefore, it is necessary to improve one or more of the problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of this disclosure as set forth in the claims. The description herein does not constitute an admission that it is prior art simply because it is included in this section. Summary of the Invention

[0006] The purpose of this disclosure is to provide an all-metal antenna with an integrated radio frequency coaxial connector, thereby overcoming, at least to some extent, one or more problems caused by limitations and defects in related technologies.

[0007] An all-metal antenna integrating a radio frequency coaxial connector, according to an embodiment of this disclosure, includes:

[0008] A circular metal casing, on which a wedge-shaped groove is formed;

[0009] A first metal cylinder is disposed inside the circular metal shell, and the first metal cylinder and the circular metal shell after the wedge-shaped groove are formed to form a power supply structure. The top of the first metal cylinder is provided with a protrusion in the horizontal direction. The axes of the circular metal shell and the first metal cylinder are collinear.

[0010] The oscillator radiation unit is respectively disposed on both sides of the top of the metal circular shell, so that the oscillator radiation unit is located on both sides of the wedge-shaped groove;

[0011] One of the oscillator radiating units on one side has a slot on the metal circular shell. The slot matches the protrusion. When the first metal cylinder is placed on the metal circular shell, the protrusion just fits into the slot, so that the oscillator radiating unit on that side is connected to both the metal circular shell and the first metal cylinder.

[0012] A coaxial connector is disposed at the bottom of the circular metal housing.

[0013] In one embodiment of this disclosure, the oscillator radiating unit includes: a metal cuboid, a metal trapezoid, and a second metal cylinder; wherein the metal cuboid is disposed on the top outer wall of the metal circular shell, the metal trapezoid is connected to the metal cuboid, and the second metal cylinder is connected to the metal trapezoid; wherein the tops of the metal cuboid, the metal trapezoid, and the second metal cylinder are coplanar.

[0014] In one embodiment of this disclosure, the coaxial connector includes:

[0015] A metal cylindrical ring is located at the bottom of the metal circular outer shell, and an insulating cylindrical ring is provided inside the metal cylindrical ring.

[0016] A third metal cylinder and a fourth metal cylinder, wherein the third metal cylinder is disposed at the bottom of the fourth metal cylinder, and the fourth metal cylinder and the third metal cylinder are inserted inside the insulating annular column; wherein the fourth metal cylinder is connected to the bottom of the first metal cylinder; the axes of the circular metal shell, the first metal cylinder, the metal annular column, the insulating annular column, the third metal cylinder, and the fourth metal cylinder are collinear.

[0017] In one embodiment of this disclosure, the metal annular column is disposed at the bottom of the metal circular housing via a flange.

[0018] In one embodiment of this disclosure, the flange is provided with a fixing hole for fixing the flange to the position to be fixed.

[0019] In one embodiment of this disclosure, the insulating annular post is made of polytetrafluoroethylene.

[0020] In one embodiment of this disclosure, the height of the circular metal shell is equal to the height of the first metal cylinder.

[0021] In one embodiment of this disclosure, the radius of the third metal cylinder is equal to the radius of the first metal cylinder.

[0022] In one embodiment of this disclosure, the radius of the fourth metal cylinder is smaller than the radius of the third metal cylinder.

[0023] In one embodiment of this disclosure, the outer diameter of the metal circular shell is equal to the outer diameter of the insulating circular cylinder, and the outer diameter of the metal circular cylinder is greater than the outer diameter of the insulating circular cylinder.

[0024] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0025] In the embodiments of this disclosure, the radiator portion of the all-metal antenna, which integrates the radio frequency coaxial connector, is integrated with the coaxial connector, achieving radio frequency integration, simplifying the assembly process, improving the reliability of the metal antenna, and reducing production costs. This metal antenna serves as both an electromagnetic wave radiating unit and a system heat dissipation unit, eliminating the need for additional heat dissipation components. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 A schematic diagram of the disassembled structure of the all-metal antenna with integrated radio frequency coaxial connector in an exemplary embodiment of this disclosure is shown.

[0028] Figure 2 A top view of an all-metal antenna with an integrated radio frequency coaxial connector in an exemplary embodiment of this disclosure is shown.

[0029] Figure 3 This illustration shows the standing wave characteristics of the radiating element of the all-metal antenna in an exemplary embodiment of this disclosure;

[0030] Figure 4 The radiation pattern of the all-metal antenna radiating element in an exemplary embodiment of this disclosure is shown.

[0031] In the diagram: 100, circular metal shell; 110, wedge-shaped groove; 200, first metal cylinder; 210, protrusion; 300, oscillator radiating unit; 310, metal cuboid; 320, metal trapezoid; 330, second metal cylinder; 400, coaxial connector; 410, metal annular column; 420, insulating annular column; 430, third metal cylinder; 440, fourth metal cylinder; 500, flange; 510, fixing hole. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0034] This example embodiment provides an all-metal antenna with an integrated RF coaxial connector. (Reference) Figure 1 As shown, the all-metal antenna with integrated radio frequency coaxial connector 400 may include: a radiator portion and a coaxial connector 400 located at the bottom of the radiator portion.

[0035] The radiator portion includes a circular metal housing 100, on which a wedge-shaped groove 110 is formed.

[0036] A first metal cylinder 200 is disposed inside the circular metal shell 100, and the first metal cylinder 200 and the circular metal shell 100 after the wedge groove 110 is formed constitute a power supply structure. The top of the first metal cylinder 200 is provided with a protrusion 210 in the horizontal direction. The axes of the circular metal shell 100 and the first metal cylinder 200 are collinear.

[0037] The oscillator radiation unit 300 is respectively disposed on both sides of the top of the metal circular shell 100, so that the oscillator radiation unit 300 is located on both sides of the wedge groove 110.

[0038] One of the oscillator radiation units 300 on one side has a slot on the metal circular shell 100. The slot matches the protrusion 210. When the first metal cylinder 200 is placed on the metal circular shell 100, the protrusion 210 is just locked into the slot, so that the oscillator radiation unit 300 on that side is simultaneously connected to the metal circular shell 100 and the first metal cylinder 200.

[0039] The coaxial connector 400 is disposed at the bottom of the metal circular housing 100.

[0040] In one embodiment, the all-metal antenna integrated with the RF coaxial connector 400 includes a radiator portion and a coaxial connector 400, wherein the coaxial connector 400 is located at the bottom of the radiator portion. The radiator portion includes a circular metal housing 100, a first metal cylinder 200, and a vibrator radiating element 300. The circular metal housing 100 has an upper open end, a cavity, and a lower open end, which are connected. A wedge-shaped groove 110 is formed in the upper part of the circular metal housing 100. The first metal cylinder 200 is disposed inside the circular metal housing 100, and the axis of the first metal cylinder 200 is collinear with that of the circular metal housing 100. The first metal cylinder 200 and the circular metal housing 100 with the wedge-shaped groove 110 form an air-dielectric feeding structure. Vibrator radiating elements 300 are respectively disposed on both sides of the top of the circular metal housing 100, and the vibrator radiating elements 300 are located on both sides of the wedge-shaped groove 110. Among them, the metal circular shell 100 serves as the outer conductor, and the wedge-shaped groove 110 cut off on the metal circular shell 100 is a gradient wedge-shaped groove 110. This wedge-shaped groove 110 is a wedge-shaped groove 110 balun used for impedance matching, and its function is equivalent to a balun.

[0041] It should be understood that the top of the first metal cylinder 200 has a protrusion 210 in the horizontal direction. The oscillator radiating unit 300 located on one side of the top of the metal circular shell 100 also has a slot on the metal circular shell 100. This slot is designed to match the protrusion 210 on the top of the first metal cylinder 200. When the first metal cylinder 200 is placed inside the metal circular shell 100, the protrusion 210 can fit perfectly into the slot, thus enabling the oscillator radiating unit 300 on that side to simultaneously connect to both the metal circular shell 100 and the first metal cylinder 200. The oscillator radiating unit 300 located on the other side of the top of the metal circular shell 100 is connected to the top of the metal circular shell 100, thus connecting the oscillator radiating unit 300 on that other side to the metal circular shell 100.

[0042] The all-metal antenna integrated with the aforementioned RF coaxial connector 400 integrates the radiator with the coaxial connector 400, achieving RF integration, simplifying the assembly process, improving the reliability of the metal antenna, and reducing production costs. The metal antenna serves as both an electromagnetic wave radiating element and a system heat dissipation element, eliminating the need for additional heat dissipation components.

[0043] Below, we will refer to Figures 1 to 2 The various parts of the all-metal antenna integrated with the radio frequency coaxial connector 400 in this example embodiment will be described in more detail.

[0044] In one embodiment, the oscillator radiating element 300 includes a metal cuboid 310, a metal trapezoid 320, and a second metal cylinder 330; the metal cuboid 310 is disposed on the top outer wall of the metal circular outer shell 100, the metal trapezoid 320 is connected to the metal cuboid 310, and the second metal cylinder 330 is connected to the metal trapezoid 320; wherein the tops of the metal cuboid 310, the metal trapezoid 320, and the second metal cylinder 330 are coplanar. Specifically, the oscillator radiating element 300 includes a metal cuboid 310, a metal trapezoid 320, and a second metal cylinder 330, and the tops of the metal cuboid 310, the metal trapezoid 320, and the second metal cylinder 330 are coplanar. A rotationally symmetric broadband oscillator antenna is frequency-independent, enabling broadband metal antennas. Broadband antennas generally require that their oscillators do not have abrupt changes in physical dimensions. A smooth physical structure tends to produce a radiation pattern and input impedance that vary smoothly with frequency. The size of the radiating element 300 determines the operating frequency of the metal antenna. The designed radiating element 300 transitions from a cuboid to a cylinder, and this transition achieves broadband bandwidth. The thicker the radiating element 300, the wider the bandwidth.

[0045] It should be noted that when designing the oscillator radiating unit 300, the overall thickness of the oscillator radiating unit 300 needs to be considered. For example, if the overall thickness of the oscillator radiating unit 300 is 1mm, that is, the thickness of the metal cuboid 310, the metal trapezoid 320 and the second metal cylinder 330 is 1mm.

[0046] In one embodiment, the coaxial connector 400 includes:

[0047] A metal ring post 410 is provided inside the metal circular outer shell 100, and an insulating ring post 420 is provided inside the metal ring post 410.

[0048] A third metal cylinder 430 and a fourth metal cylinder 440 are present, with the third metal cylinder 430 disposed at the bottom of the fourth metal cylinder 440, and both the fourth metal cylinder 440 and the third metal cylinder 430 passing through the insulating annular column 420; wherein the fourth metal cylinder 440 is connected to the bottom of the first metal cylinder 200; the centerlines of the metal circular shell 100, the first metal cylinder 200, the metal annular column 410, the insulating annular column 420, the third metal cylinder 430, and the fourth metal cylinder 440 are collinear.

[0049] Specifically, the coaxial connector 400 includes a metal annular post 410, an insulating annular post 420, a third metal cylinder 430, and a fourth metal cylinder 440. The metal annular post 410 is disposed at the bottom of the circular metal housing 100, and the insulating annular post 420 is disposed within the metal annular post 410. The third metal cylinder 430 is disposed at the bottom of the fourth metal cylinder 440, which is disposed at the bottom of the first metal cylinder 200. Furthermore, the centerlines of the circular metal housing 100, the first metal cylinder 200, the metal annular post 410, the insulating annular post 420, the third metal cylinder 430, and the fourth metal cylinder 440 are collinear. The third metal cylinder 430 and the fourth metal cylinder 440 are conductors within the coaxial connector 400.

[0050] In one embodiment, the metal annular post 410 is disposed at the bottom of the metal circular housing 100 via a flange 500. Specifically, by assembling the metal annular post 410 and the metal circular housing 100 together using the flange 500, the radiator section and the coaxial connector 400 are connected, achieving radio frequency integration, simplifying the assembly process, and improving system integration and reliability. Simultaneously, this metal antenna is small in size, easy to manufacture, and can also serve as an active array heat conduction unit, enhancing the system's heat dissipation capacity.

[0051] In one embodiment, the flange 500 has a fixing hole 510 for fixing the flange 500 to the position to be fixed. Specifically, the fixing hole 510 on the flange 500 is for fixing the flange 500 to the position to be fixed, which facilitates the installation of the metal antenna to the position to be fixed.

[0052] In one embodiment, the insulating ring post 420 is made of polytetrafluoroethylene (PTFE). Specifically, PTFE is resistant to high temperatures and corrosion, and has excellent electrical insulation properties, which gives the insulating ring post 420 excellent electrical insulation properties.

[0053] In one embodiment, the height of the circular metal shell 100 is equal to the height of the first metal cylinder 200. Specifically, when designing the metal antenna, considering that the vibrator radiating element 300 located on one side of the top of the circular metal shell 100 is connected to both the circular metal shell 100 and the first metal cylinder 200; and that the vibrator radiating element 300 located on the other side of the top of the circular metal shell 100 is connected to the top of the circular metal shell 100, the heights of the circular metal shell 100 and the first metal cylinder 200 are designed to be equal. The specific height of the circular metal shell 100 can be set according to actual conditions, and this disclosure does not impose any limitations on it.

[0054] In one embodiment, the radius of the third metal cylinder 430 is equal to the radius of the first metal cylinder 200. Specifically, the radius of the first metal cylinder 200 can be set according to actual conditions, and this disclosure does not impose any restrictions on it.

[0055] In one embodiment, the radius of the fourth metal cylinder 440 is smaller than the radius of the third metal cylinder 430. Specifically, considering that the inner conductor of the coaxial connector 400 narrows from wide to narrow, and the gap is filled with air to form an air impedance coaxial transformation segment, the radius of the third metal cylinder 430 is designed to be larger than the radius of the fourth metal cylinder 440. The specific radii of the third metal cylinder 430 and the fourth metal cylinder 440 can be set according to actual conditions, and this disclosure does not impose any limitations on this.

[0056] In one embodiment, the outer diameter of the circular metal housing 100 is equal to the outer diameter of the insulating annular post 420, and the outer diameter of the circular metal annular post 410 is larger than the outer diameter of the insulating annular post 420. Specifically, considering the assembly of the radiator section and the coaxial connector 400, the outer diameter of the circular metal housing 100 is designed to be equal to the outer diameter of the insulating annular post 420, and the outer diameter of the circular metal annular post 410 is designed to be larger than the outer diameter of the insulating annular post 420. The specific outer diameters of the circular metal housing 100 and the circular metal annular post 410 can be set according to actual conditions, and this disclosure does not impose any limitations on them.

[0057] In one embodiment, based on the all-metal antenna integrated with the aforementioned RF coaxial connector 400, the following parameters are designed: When designing the vibrator radiating element 300, the overall thickness of the vibrator radiating element 300 needs to be considered. For example, the overall thickness of the vibrator radiating element 300 is 1mm, meaning the thickness of the metal cuboid 310, the metal trapezoid 320, and the second metal cylinder 330 is 1mm. Furthermore, when designing the vibrator radiating element 300, other dimensions of the vibrator element also need to be considered. For example, the length of the metal cuboid 310 is 2mm, the width is 0.86mm, and the radius of the second metal cylinder 330 is 1.32mm. Additionally, when the height of the metal circular outer shell 100 is designed to be 6.4mm, the height of the first metal cylinder 200 is also designed to be 6.4mm. When the radius of the first metal cylinder 200 is 0.43mm, the radius of the third metal cylinder 430 is also 0.43mm. The outer diameter of the metal circular shell 100 is 1.5 mm, the outer diameter of the insulating circular cylinder 420 is 1.5 mm, and the outer diameter of the metal circular cylinder 410 is 2 mm. The radius of the fourth metal cylinder 440 is 0.175 mm, the height of the fourth metal cylinder 440 is 0.747 mm, and the height of the third metal cylinder 430 is 1.4 mm.

[0058] It should be understood that the VSWR of the embodiment using this metal antenna parameter design is determined by... Figure 3 As can be seen, within the frequency band of 13.6GHz to 18.6GHz, the standing wave ratio of this metal antenna is less than 1.5, which meets the requirements for engineering applications.

[0059] Figure 4 This is the radiation pattern of an all-metal antenna element in an embodiment of the metal antenna parameter design. It can be seen that at the center frequency of 16 GHz, the metal antenna has a gain of 7.3 dB, and its azimuth and elevation scanning ranges are ±54° and ±27°, respectively. This demonstrates that the metal antenna possesses excellent gain and scanning characteristics, making it highly suitable for low-cost integrated antenna applications.

[0060] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] In the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0063] In embodiments of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0065] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An all-metal antenna integrating a radio frequency coaxial connector, characterized in that, include: The radiator section and the coaxial connector located at the bottom of the radiator section; The radiator portion includes: a circular metal outer shell, a first metal cylinder, and an oscillator radiating unit; A wedge-shaped groove is formed on the circular metal outer shell; A first metal cylinder is disposed inside the circular metal shell, and the first metal cylinder and the circular metal shell after the wedge-shaped groove are formed to form a power supply structure. The top of the first metal cylinder is provided with a protrusion in the horizontal direction. The axes of the circular metal shell and the first metal cylinder are collinear. The oscillator radiation unit is respectively disposed on both sides of the top of the metal circular shell, so that the oscillator radiation unit is located on both sides of the wedge-shaped groove; One of the oscillator radiating units on one side has a slot on the metal circular shell. The slot matches the protrusion. When the first metal cylinder is placed on the metal circular shell, the protrusion just fits into the slot, so that the oscillator radiating unit on that side is connected to both the metal circular shell and the first metal cylinder. The coaxial connector is located at the bottom of the circular metal housing.

2. The all-metal antenna with integrated RF coaxial connector according to claim 1, characterized in that, The oscillator radiating unit includes: a metal cuboid, a metal trapezoid, and a second metal cylinder; the metal cuboid is disposed on the top outer wall of the metal circular shell, the metal trapezoid is connected to the metal cuboid, and the second metal cylinder is connected to the metal trapezoid; wherein the tops of the metal cuboid, the metal trapezoid, and the second metal cylinder are coplanar.

3. The all-metal antenna with integrated RF coaxial connector according to claim 1, characterized in that, The coaxial connector includes: A metal annular column, wherein the metal annular column is located at the bottom of the metal circular shell, and an insulating annular column is disposed inside the metal annular column; A third metal cylinder and a fourth metal cylinder, wherein the third metal cylinder is disposed at the bottom of the fourth metal cylinder, and the fourth metal cylinder and the third metal cylinder are inserted inside the insulating annular column; wherein the fourth metal cylinder is connected to the bottom of the first metal cylinder; the axes of the circular metal shell, the first metal cylinder, the metal annular column, the insulating annular column, the third metal cylinder, and the fourth metal cylinder are collinear.

4. The all-metal antenna with integrated RF coaxial connector according to claim 3, characterized in that, The metal annular column is mounted at the bottom of the metal circular outer shell via a flange.

5. The all-metal antenna with integrated RF coaxial connector according to claim 4, characterized in that, The flange has fixing holes for fixing the flange to the position to be fixed.

6. The all-metal antenna with integrated RF coaxial connector according to claim 3, characterized in that, The insulating annular post is made of polytetrafluoroethylene.

7. The all-metal antenna with integrated RF coaxial connector according to claim 1, characterized in that, The height of the circular metal shell is equal to the height of the first metal cylinder.

8. The all-metal antenna with integrated RF coaxial connector according to claim 3, characterized in that, The radius of the third metal cylinder is equal to the radius of the first metal cylinder.

9. The all-metal antenna with integrated RF coaxial connector according to claim 3, characterized in that, The radius of the fourth metal cylinder is smaller than the radius of the third metal cylinder.

10. The all-metal antenna with integrated RF coaxial connector according to claim 3, characterized in that, The outer diameter of the metal circular shell is equal to the outer diameter of the insulating circular cylinder, and the outer diameter of the metal circular cylinder is greater than the outer diameter of the insulating circular cylinder.

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