A multi-band ultra-wideband conical monopole antenna

Abstract

The utility model discloses a kind of multi-band ultra-wideband conical vibrator antennas, including mounting plate, two groups and above antenna vibrator groups are equipped on mounting plate, each antenna vibrator group includes disc-shaped vibrator and conical vibrator axially arranged and mutually insulated, each conical vibrator is connected with a circuit board and cable electrically, each cable is sequentially passed through a disc-shaped vibrator and mounting plate and extends to its outside side.The utility model utilizes the gradual change structural characteristics of conical vibrator, so that the effective electrical length of antenna is adaptively adjusted with frequency change, to cover wider frequency band signal and provide higher and more stable gain, and can maintain stable omni-directional radiation in very high frequency and ultra-high frequency frequency band range, with more stable impedance matching and with excellent radiation efficiency, anti-interference performance and mechanical strength, can maintain stable and efficient data transmission in broadband communication, electromagnetic compatibility test and radar detection and other wide frequency coverage working scene.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a multi-band ultra-wideband conical dipole antenna. Background Technology

[0002] An antenna is a device that propagates electromagnetic waves generated by a time-varying electromagnetic field. Currently, most antennas use linear dipole antennas. By applying an alternating voltage to both ends of the dipole, charge is accumulated at the ends of the dipole, while the current is greatest in the middle of the dipole. The electromagnetic waves generated are radiated out in a dumbbell shape, with strong radiation directionality and a fixed polarization direction. This results in a limited radiation coverage frequency band for linear antennas. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a multi-band ultra-wideband conical dipole antenna. Utilizing the gradient structural characteristics of the conical dipole, the effective electrical length of the antenna adaptively adjusts with frequency changes to cover a wider range of signals and provide higher and more stable gain. It can maintain stable omnidirectional radiation in the UHF and UHF frequency bands, has more stable impedance matching, and possesses excellent radiation efficiency, anti-interference performance, and mechanical strength. It can continuously maintain stable and efficient data transmission in wideband coverage scenarios such as broadband communication, electromagnetic compatibility testing, and radar detection.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A multi-band ultra-wideband conical dipole antenna includes a mounting plate, wherein the mounting plate is provided with two or more groups of antenna dipoles capable of receiving signals of different frequency bands, wherein:

[0006] Each antenna element group includes a disc-shaped element and a conical element coaxially sleeved around the same cable, arranged axially and insulated from each other. Each conical element is embedded in a circuit board and electrically connected to it. Both ends of the conical element extend to the outside of the circuit board, and the smaller ends of the conical elements are electrically connected to a cable. Each cable passes through a disc-shaped element and a mounting plate in sequence and extends to its outside. Each disc-shaped element is mounted on the mounting plate by a bracket.

[0007] The heights of the mounting plates on the various brackets are all different, and the heights of the conical vibrators on the same circuit board are all different.

[0008] As a further explanation of the above technical solution:

[0009] In the above technical solution, the conductive inner core at one end of each cable is welded and fixed to the smaller end of a conical vibrator, and its insulating outer sheath is fixedly connected to a disc vibrator.

[0010] In the above technical solution, each circuit board is provided with a clearance hole that is adapted to the outer wall of a conical oscillator, and each circuit board is provided with two or more soldering areas on the side of each clearance hole, and each soldering area is connected to a conductive area on the circuit board.

[0011] In the above technical solution, the mounting plate is provided with several positioning structures.

[0012] In the above technical solution, the mounting plate is a zinc plate or a zinc alloy plate, the disc-shaped vibrator and the conical vibrator are both copper vibrators, and each of the brackets is an insulating bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by selecting a combination of conical and disc-shaped dipoles as the antenna dipole group instead of conventional linear dipoles, and utilizing the gradient structure characteristics of the conical dipole, the effective electrical length of the antenna can be adaptively adjusted with frequency changes to cover a wider frequency band and provide higher and more stable gain. It can also maintain stable omnidirectional radiation in the ultra-high frequency and ultra-high frequency bands, has more stable impedance matching, and has excellent radiation efficiency, anti-interference performance and mechanical strength. It can continuously maintain stable and efficient data transmission in wide-band coverage working scenarios such as broadband communication, electromagnetic compatibility testing and radar detection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0015] Figure 2 This is an enlarged view of part A in this embodiment;

[0016] Figure 3 This is a front view structural diagram of this embodiment.

[0017] In the diagram: 10. Mounting plate; 11. Positioning structure; 20. Antenna vibrator assembly; 21. Disc vibrator; 22. Conical vibrator; 30. Cable; 40. Circuit board; 41. Clearance hole; 42. Soldering area; 50. Bracket. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, 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," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 limiting this application. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature 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" of a second feature includes the first feature 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.

[0020] like Figure 1 As shown, a multi-band ultra-wideband conical dipole antenna includes a mounting plate 10, on which two or more antenna dipole groups 20 capable of receiving signals of different frequency bands are provided.

[0021] like Figure 2As shown, each antenna element group 20 includes a disc-shaped element 21 and a conical element 22 coaxially sleeved around the same cable 30, arranged axially and insulated from each other. Each conical element 22 is embedded in a circuit board 40 and electrically connected to it. Both ends of the conical element 22 extend to the outside of the circuit board 40, and the smaller ends of the conical element 22 are electrically connected to a cable 30. Each cable 30 passes through a disc-shaped element 21 and a mounting plate 10 in sequence and extends to its outside. Each disc-shaped element 21 is mounted on the mounting plate 10 by a bracket 50.

[0022] like Figure 3 As shown, the heights of several brackets 50 and mounting plates 10 are not the same, and the heights of each conical vibrator 22 on the same circuit board 40 are not the same.

[0023] This invention uses a combination of a conical dipole 22 and a disc dipole 21 as the antenna element group 20 instead of a conventional linear dipole. By utilizing the tapered structure characteristics of the conical dipole 22, the effective electrical length of the antenna is adaptively adjusted with frequency changes, thereby covering a wider frequency band and providing higher and more stable gain. It can also maintain stable omnidirectional radiation in the UHF and UHF frequency bands, has more stable impedance matching, and has excellent radiation efficiency, anti-interference performance, and mechanical strength. It can continuously maintain stable and efficient data transmission in broadband communication, electromagnetic compatibility testing, radar detection, and other wide-band coverage scenarios.

[0024] In this embodiment, a total of six antenna vibrator groups 20 are mounted on the mounting plate 10, and the disc brackets 21 in each antenna vibrator group 20 are mounted on the mounting plate 10 by a bracket 50. Four conical transducers 22 are mounted on the same circuit board 40, and each transducer 22 has a different height. They are used to receive electromagnetic signals in the ultra-high frequency bands of 400-500MHz, 700-800MHz, 1000-1100MHz, and 1400-1500MHz, respectively. They can receive signals from different frequency bands such as 2G / 3G mobile communication, RFID tags, Beidou navigation satellite communication, and microwave radar, meeting the signal transmission and reception needs of multiple fields such as IoT, high-precision navigation, and microwave remote sensing. The other two conical transducers 22 are mounted on two other circuit boards 40, and both can receive electromagnetic signals in the ultra-high frequency band of 5900-6100MHz. They can meet the stable, high-speed, and low-latency data transmission needs of 5G communication, satellite communication, wireless LAN, radar systems, and microwave communication, supporting the signal transmission needs of various fields such as smart homes, smart cities, industrial automation, autonomous driving, and IoT.

[0025] In this embodiment, the conductive inner core at one end of each cable 30 is welded and fixed to the smaller end of a conical vibrator 22, and its insulating outer sheath is fixedly connected to a disc vibrator 21; each circuit board 40 is provided with a clearance hole 41 adapted to the outer wall of a conical vibrator 22, and each circuit board 40 is provided with two or more welding areas 42 on the side of each clearance hole 41, and each welding area 42 is connected to the conductive area on the circuit board 40; the mounting plate 10 is provided with several positioning structures 11.

[0026] In this embodiment, the mounting plate 10 is a zinc plate or zinc alloy plate, the disc oscillator 21 and the conical oscillator 22 are both copper oscillators, and each bracket 50 is an insulating bracket.

[0027] Understandably, copper oscillators have excellent conductivity and corrosion resistance. Their high conductivity results in less loss during signal transmission, ensuring that the signal will not attenuate due to excessive loss and guaranteeing normal signal transmission.

[0028] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A multi-band ultra-wideband conical dipole antenna, characterized in that, Includes a mounting plate, wherein the mounting plate is provided with two or more groups of antenna elements capable of receiving signals in different frequency bands, wherein: Each antenna element group includes a disc-shaped element and a conical element coaxially sleeved around the same cable, arranged axially and insulated from each other. Each conical element is embedded in a circuit board and electrically connected to it. Both ends of the conical element extend to the outside of the circuit board, and the smaller ends of the conical elements are electrically connected to a cable. Each cable passes through a disc-shaped element and a mounting plate in sequence and extends to its outside. Each disc-shaped element is mounted on the mounting plate by a bracket. The heights of the brackets and the mounting plates are not the same, and the heights of each conical vibrator on the same circuit board are not the same.

2. The multi-band ultra-wideband conical monopole antenna according to claim 1, wherein, The conductive inner core at one end of each cable is welded and fixed to the smaller end of a conical vibrator, and its insulating outer sheath is fixedly connected to a disc vibrator.

3. The multiband ultra-wideband conical monopole antenna according to claim 1, wherein, Each of the circuit boards is provided with a clearance hole that is adapted to the outer wall of a conical oscillator. Each of the circuit boards is provided with two or more soldering areas on the side of each clearance hole. Each soldering area is connected to a conductive area on the circuit board.

4. A multi-band ultra-wideband conical dipole antenna according to claim 1, characterized in that, The mounting plate is provided with several positioning structures.

5. The multiband ultra-wideband conical monopole antenna according to claim 1, wherein, The mounting plate is made of zinc plate or zinc alloy plate, the disc-shaped vibrator and the conical vibrator are both copper vibrators, and each of the brackets is an insulating bracket.

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