Ultra-wide-angle antenna structure, vehicle-mounted antenna module and intelligent vehicle

Abstract

The invention provides an ultra-wide-angle antenna structure, a vehicle-mounted antenna module and an intelligent vehicle. The ultra-wide-angle antenna structure comprises a circuit board, a signal antenna, a first director and a second director, the signal antenna is electrically connected with the circuit board, the first director and the second director are respectively connected with the circuit board, and the first director, the second director and the signal antenna are located on the same side face of the circuit board. The signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director are sequentially reduced, and the distance between the first director and the signal antenna is a first preset induction gap; the distance between the first director and the signal antenna is a first preset induction gap, the distance between the second director and the signal antenna is a second preset induction gap, the second preset induction gap is larger than the first preset induction gap, and the first director and the second director are both used for guiding signal diffusion of the signal antenna.

Description

Technical Field

[0001] The present disclosure relates to the field of antennas, and in particular to an ultra-wide-angle antenna structure, a vehicle-mounted antenna module and a smart car. Background Art

[0002] The vehicle antenna is mainly responsible for intercepting the high-frequency radio waves emitted by the transmitter and transmitting them to the receiver of the car radio, car phone or radio navigation equipment to demodulate the carrier. With the help of V2X (Vehicle to Everything) communication technology, the vehicle antenna can realize real-time information exchange between the vehicle and infrastructure, other vehicles and pedestrians. This information sharing provides rich environmental perception data for autonomous driving, enhances the vehicle's ability to respond in complex traffic scenarios, and significantly improves driving safety.

[0003] Traditional V2X antennas, such as Figure 1 As shown, it is installed on a circuit board and amplifies the signal of the V2X antenna through a director. However, since a director has limited amplification on the signal transmission direction of the V2X antenna, the signal at some angles of the V2X antenna is weak, that is, the V2X antenna cannot achieve ultra-wide-angle signal transmission, which will result in a smaller detection range of the car and make it difficult to adapt to the changing driving environment of the car.

[0004] Therefore, there is an urgent need for an antenna structure that can achieve ultra-wide-angle signal transmission and has a strong gain effect. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an ultra-wide-angle antenna structure, a vehicle-mounted antenna module and a smart car that can achieve ultra-wide-angle signal transmission and have a strong gain effect.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] An ultra-wide-angle antenna structure, comprising:

[0008] A circuit board and a signal antenna, wherein the signal antenna is electrically connected to a signal transceiver end of the circuit board,

[0009] The ultra-wide-angle antenna structure also includes a first director and a second director, the first director and the second director are electrically connected to the two director ends of the circuit board respectively, the first director, the second director and the signal antenna are located on the same side of the circuit board, the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director decrease successively, the distance between the first director and the signal antenna is a first preset induction gap, the distance between the second director and the signal antenna is a second preset induction gap, the second preset induction gap is larger than the first preset induction gap, and the first director and the second director are both used to guide the signal diffusion of the signal antenna.

[0010] In one embodiment, the first preset sensing gap is 0.3 mm-0.6 mm; and / or,

[0011] The second preset sensing gap is 5mm-6mm.

[0012] In one embodiment, the height of the first director is 8.0 mm-8.5 mm; and / or,

[0013] The height of the signal antenna is 5.0 mm-5.5 mm; and / or,

[0014] The height of the second director is 3.0 mm-3.5 mm.

[0015] In one embodiment, the first director includes a first director and three first connecting posts, one end of each of the first connecting posts is connected to the circuit board, wherein the other ends of two of the first connecting posts are respectively connected to opposite sides of the first director, and the other end of another of the first connecting posts is connected to a side of the first director away from the signal antenna, so that the three first connecting posts are distributed in a triangular shape; and / or,

[0016] The second director includes a second guiding member and three second connecting columns, one end of each of the second connecting columns is connected to the circuit board, wherein the other ends of two of the second connecting columns are respectively connected to the opposite sides of the second guiding member, and the other end of another second connecting column is connected to the side of the second guiding member away from the signal antenna, so that the three second connecting columns are distributed in a triangular shape.

[0017] In one embodiment, arc-shaped guide portions are protruding from both ends of one side of the first guiding member adjacent to the signal antenna, the two arc-shaped guide portions are symmetrically arranged relative to the signal antenna, and the signal antenna is located between the two arc-shaped guide portions in the vertical direction.

[0018] In one embodiment, the signal antenna includes a conductive member, a first antenna body and a second antenna body, the first antenna body is electrically connected to the conductive member and the second antenna body respectively, the conductive member is electrically connected to the circuit board, there is a preset angle between the first antenna body and the second antenna body, the second antenna body is arranged adjacent to the second guide member, and the first antenna body, the first guide member and the second guide member are arranged in parallel.

[0019] In one embodiment, a preset angle between the first antenna body and the second antenna body is 90°.

[0020] A vehicle-mounted antenna module comprises a packaging shell and the ultra-wide-angle antenna structure described in any one of the above embodiments, wherein the ultra-wide-angle antenna structure is installed in the packaging shell, and the packaging shell is used to be installed on a car.

[0021] In one embodiment, the vehicle-mounted antenna module also includes a 5G antenna, which is installed on the circuit board and is arranged adjacent to the signal antenna.

[0022] A smart car comprises the vehicle-mounted antenna module described in any of the above embodiments, wherein the vehicle-mounted antenna module is horizontally or obliquely arranged on the front, roof, rear or rearview mirror of the smart car.

[0023] Compared with the prior art, the present invention has at least the following advantages:

[0024] In the above-mentioned ultra-wide-angle antenna structure, the first director, the second director and the signal antenna are all installed on the same side of the circuit board, the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director decrease successively, there is a first preset induction gap between the first director and the signal antenna, there is a second preset induction gap between the second director and the signal antenna, and the second preset induction gap is larger than the first preset induction gap, when the signal antenna is working and generates electromagnetic waves, the first director guides the electromagnetic waves to propagate in one direction, and the second director guides the electromagnetic waves to propagate in another direction, so that the electromagnetic waves of the signal antenna are jointly guided by the first director and the second director, thereby enhancing the directivity and gain of the antenna structure, making the gain distribution of the antenna structure more uniform, thereby increasing the detectable range of the car and achieving the ultra-wide-angle signal transmission effect of the antenna structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of an antenna structure in the prior art;

[0027] Figure 2 is a schematic structural diagram of an ultra-wide-angle antenna structure according to an embodiment;

[0028] Figure 3 for Figure 2 Another structural schematic diagram of the ultra-wide-angle antenna structure shown;

[0029] Figure 4 for Figure 2 The gain diagram of the ultra-wide angle antenna structure shown;

[0030] Figure 5 for Figure 2 Another gain diagram of the ultra-wide angle antenna structure shown;

[0031] Figure 6 for Figure 2 Another gain diagram of the ultra-wide angle antenna structure shown;

[0032] Figure 7 for Figure 2 Another gain diagram of the ultra-wide angle antenna structure shown;

[0033] Figure 8 for Figure 2 Performance diagram of the ultra-wide-angle antenna structure shown. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The present disclosure provides an ultra-wide-angle antenna structure, including a circuit board, a signal antenna, a first director and a second director, the signal antenna is electrically connected to a signal transceiver end of the circuit board, the first director and the second director are electrically connected to two director ends of the circuit board respectively, the first director, the second director and the signal antenna are located on the same side of the circuit board, the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director decrease in sequence, the distance between the first director and the signal antenna is a first preset induction gap, the distance between the second director and the signal antenna is a second preset induction gap, the second preset induction gap is larger than the first preset induction gap, and the first director and the second director are both used to guide the signal diffusion of the signal antenna.

[0038] In the above-mentioned ultra-wide-angle antenna structure, the first director, the second director and the signal antenna are all installed on the same side of the circuit board, the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director decrease successively, there is a first preset induction gap between the first director and the signal antenna, there is a second preset induction gap between the second director and the signal antenna, and the second preset induction gap is larger than the first preset induction gap, when the signal antenna is working and generates electromagnetic waves, the first director guides the electromagnetic waves to propagate in one direction, and the second director guides the electromagnetic waves to propagate in another direction, so that the electromagnetic waves of the signal antenna are jointly guided by the first director and the second director, thereby enhancing the directivity and gain of the antenna structure, making the gain distribution of the antenna structure more uniform, thereby increasing the detectable range of the car and achieving the ultra-wide-angle signal transmission effect of the antenna structure.

[0039] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0040] like Figure 2 and Figure 3 As shown, an ultra-wide-angle antenna structure 10 of an embodiment includes a circuit board 100, a signal antenna 200, a first director 300 and a second director 400, wherein the signal antenna 200 is electrically connected to a signal transceiver end of the circuit board 100, the first director 300 and the second director 400 are electrically connected to two director ends of the circuit board 100, respectively, the first director 300, the second director 400 and the signal antenna 200 are located on the same side of the circuit board 100, and the signal antenna 200 is located between the first director 300 and the second director 400. , the heights of the first director 300, the signal antenna 200 and the second director 400 decrease successively, the distance between the first director 300 and the signal antenna 200 is a first preset sensing gap 500, the distance between the second director 400 and the signal antenna 200 is a second preset sensing gap 600, the second preset sensing gap 600 is larger than the first preset sensing gap 500, the first director 300 and the second director 400 are both used to guide the signal diffusion of the signal antenna 200 to enhance the directivity and gain of the signal antenna 200.

[0041] In this embodiment, the first director 300, the second director 400 and the signal antenna 200 are located on the same side of the circuit board 100, and the signal antenna 200 is located between the first director 300 and the second director 400. The first director 300 and the second director 400 are used to guide the antenna diffusion of the signal antenna 200. The signal antenna 200 is electrically connected to the circuit board 100 when it is working. When the signal antenna 200 generates electromagnetic waves when it is working, the electromagnetic waves reach the first director 300 through the first preset induction gap 500 and reach the second director 400 through the second preset induction gap 600. This is because the heights of the first director 300, the signal antenna 200 and the second director 400 are successively reduced. , and the second preset sensing gap 600 is greater than the first preset sensing gap 500, so that there is a phase difference between the current of the signal antenna 200 and the current of the first director 300 and the second director 400. The first director 300 uses its own electromagnetic characteristics to attract the signal antenna 200 and propagate forward. Similarly, the second director 400 also uses its own electromagnetic characteristics to attract the signal antenna 200 and propagate forward. In this way, the electromagnetic waves of the signal antenna 200 are guided by the first director 300 and the second director 400, thereby enhancing the directivity and gain of the signal antenna 200, making the gain distribution of the antenna structure more uniform, and improving the detectable range of the car. Further, in this embodiment, the signal antenna 200 is a V2X antenna, which can realize real-time information exchange between vehicles and vehicles (V2V), vehicles and infrastructure (V2I), vehicles and pedestrians (V2P), and vehicles and networks (V2N). This comprehensive communication capability enables vehicles to perceive the surrounding environment more accurately, thereby making more intelligent decisions.

[0042] In the ultra-wide-angle antenna structure 10, the first director 300, the second director 400 and the signal antenna 200 are all installed on the same side of the circuit board 100, the signal antenna 200 is located between the first director 300 and the second director 400, the heights of the first director 300, the signal antenna 200 and the second director 400 are successively reduced, a first preset sensing gap 500 is present between the first director 300 and the signal antenna 200, a second preset sensing gap 600 is present between the second director 400 and the signal antenna 200, and the second The preset sensing gap 600 is larger than the first preset sensing gap 500. When the signal antenna 200 generates electromagnetic waves, the first director 300 guides the electromagnetic waves to propagate in one direction, and the second director 400 guides the electromagnetic waves to propagate in another direction. In this way, the electromagnetic waves of the signal antenna 200 are jointly guided by the first director 300 and the second director 400, thereby enhancing the directivity and gain of the antenna structure, making the gain distribution of the antenna structure more uniform, thereby increasing the detectable range of the car and achieving an ultra-wide-angle signal transmission effect of the antenna structure.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the first preset sensing gap 500 is 0.3 mm-0.6 mm, and the second preset sensing gap 600 is 5 mm-6 mm.

[0044] In this embodiment, the first preset sensing gap 500 is preferably 0.4 mm, and the second preset sensing gap 600 is preferably 5.1 mm. The first preset sensing gap 500 is the horizontal distance between the first director 300 and the signal antenna 200 when looking up or down on the vertical plane. Similarly, the second preset sensing gap 600 is the horizontal distance between the second director 400 and the signal antenna 200 when looking up or down on the vertical plane. By reasonably setting the first preset sensing gap 500 and the second preset sensing gap 600, the first director 300 and the second director 400 can better guide the electromagnetic waves of the signal antenna 200, so as to enhance the directivity and gain of the signal antenna 200, and improve the detectable range of the car, thereby achieving the ultra-wide-angle signal transmission effect of the signal antenna 200.

[0045] like Figure 2 and Figure 3 As shown, in one embodiment, the height of the first director 300 is 8.0 mm-8.5 mm, the height of the signal antenna 200 is 5.0 mm-5.5 mm, and the height of the second director 400 is 3.0 mm-3.5 mm.

[0046] In this embodiment, the height of the first director 300 is preferably 8.4 mm, the height of the signal antenna 200 is preferably 5.4 mm, and the height of the second director 400 is preferably 3.4 mm, so that the heights of the first director 300, the signal antenna 200 and the second director 400 are reduced in sequence. At the same time, the currents between the first director 300, the signal antenna 200 and the second director 400 are adjusted by the heights of the first director 300, the signal antenna 200 and the second director 400, so that there is a phase difference between the currents of the first director 300, the second director 400 and the current of the signal antenna 200. Due to the existence of the phase difference, the first director 300 and the second director 400 generate a positive induced electromotive force, which enhances the radiation power output by the antenna to the front, thereby tilting the antenna's radiation pattern toward the first director 300 and the second director 400, thereby improving the directivity and gain of the signal antenna 200.

[0047] like Figure 2 and Figure 3As shown, in one embodiment, the first director 300 includes a first guiding member 310 and three first connecting columns 320, one end of each of the first connecting columns 320 is connected to the circuit board 100, wherein the other ends of two of the first connecting columns 320 are respectively connected to the opposite sides of the first guiding member 310, and the other end of another first connecting column 320 is connected to the side of the first guiding member 310 away from the signal antenna 200, so that the three first connecting columns 320 are distributed in a triangle. In this embodiment, the first guiding member 310 is fixed by three first connecting columns 320. The first guiding member 310 guides the electromagnetic waves of the signal antenna 200. The three first connecting columns 320 are respectively connected to the sides of the first guiding member 310, so that the three first connecting columns 320 are distributed in a triangle. It can be understood that the car will shake during driving, especially when encountering an environment with poor road conditions, the shaking will be more severe. By designing the three first connecting columns 320 to be distributed in a triangle, while using less material to reduce costs, the first connecting columns 320 also have a better supporting and fixing effect on the first guiding member 310, thereby reducing the shaking of the first director 300 during driving of the car, thereby ensuring the accuracy of the first director 300 in signal guidance transmission. Furthermore, one of the first connecting pillars 320 is connected to a side of the first guide member 310 away from the signal antenna 200, that is, the first connecting pillar 320 is not provided on a side of the first guide member 310 adjacent to the signal antenna 200, so that the side of the first guide member 310 adjacent to the signal antenna 200 is not blocked by the first connecting pillar 320, thereby ensuring stable support and enabling the first guide member 310 to have a better guiding transmission effect on the signal antenna 200.

[0048] like Figure 2 and Figure 3As shown, in one embodiment, the second director 400 includes a second guiding member 410 and three second connecting columns 420, one end of each of the second connecting columns 420 is connected to the circuit board 100, wherein the other ends of two of the second connecting columns 420 are respectively connected to the opposite sides of the second guiding member 410, and the other end of another second connecting column 420 is connected to the side of the second guiding member 410 away from the signal antenna 200, so that the three second connecting columns 420 are distributed in a triangular shape. In this embodiment, the second guiding member 410 is fixed by three second connecting columns 420. The second guiding member 410 guides the electromagnetic waves of the signal antenna 200. The three second connecting columns 420 are respectively connected to the sides of the second guiding member 410, so that the three second connecting columns 420 are distributed in a triangle. It can be understood that the car will shake during driving, especially when encountering an environment with poor road conditions, the shaking will be more severe. By designing the three second connecting columns 420 to be distributed in a triangle, while using less material to reduce costs, the second connecting columns 420 also have a better supporting and fixing effect on the second guiding member 410, thereby reducing the shaking of the second director 400 during driving of the car, thereby ensuring the accuracy of the second director 400 in signal guidance transmission. Furthermore, one of the second connecting pillars 420 is connected to a side of the second guiding member 410 away from the signal antenna 200, that is, the second connecting pillar 420 is not provided on a side of the second guiding member 410 adjacent to the signal antenna 200, so that the side of the second guiding member 410 adjacent to the signal antenna 200 is not blocked by the second connecting pillar 420, thereby ensuring stable support and enabling the second guiding member 410 to have a better guiding transmission effect on the signal antenna 200.

[0049] like Figure 2 and Figure 3As shown, in one embodiment, arc-shaped guide portions 330 are protruding from both ends of one side of the first guiding member 310 adjacent to the signal antenna 200, the two arc-shaped guide portions 330 are symmetrically arranged relative to the signal antenna 200, and the signal antenna 200 is located between the two arc-shaped guide portions 330 in the vertical direction. In this embodiment, the second guiding member 410 is used to guide the signal transmission of the signal antenna 200. The second guiding member 410 is adjacent to the signal antenna 200 on both ends of the side with arc-shaped guide parts 330. The arc-shaped guide parts 330 make the electromagnetic wave diffusion of the signal antenna 200 more uniform. Furthermore, the signal antenna 200 is located between the two arc-shaped guide parts 330 in the vertical direction, that is, in a top or bottom view, the signal antenna 200 is located between the two arc-shaped guide parts 330, and the two arc-shaped guide parts 330 are symmetrically arranged relative to the signal antenna 200, so that the electromagnetic waves of the signal antenna 200 are diffused under the guidance of the two arc-shaped guide parts 330, thereby making the electromagnetic waves on both sides of the second director 400 more uniform, further improving the gain of the signal antenna 200 in the direction of the second director 400.

[0050] like Figure 2 As shown, in one embodiment, the signal antenna 200 includes a conductive member 210, a first antenna body 220 and a second antenna body 230, the first antenna body 220 is electrically connected to the conductive member 210 and the second antenna body 230 respectively, the conductive member is electrically connected to the circuit board 100, there is a preset angle between the first antenna body 220 and the second antenna body 230, the second antenna body 230 is arranged adjacent to the second guide member 410, and the first antenna body 220, the first guide member 310 and the second guide member 410 are arranged in parallel. In this embodiment, the conductive member 210, the first antenna body 220 and the second antenna body 230 are connected in sequence, the conductive member 210 is electrically connected to the circuit board 100, the first antenna body 220 and the second antenna body 230 generate electromagnetic waves when working, there is a preset angle between the first antenna body 220 and the second antenna body 230, and the second antenna body 230 is arranged adjacent to the first guide member 310, so that the electromagnetic wave signal in the direction of the first guide member 310 is stronger to adapt to the driving environment of the car. Furthermore, the first antenna body 220, the first guide member 310 and the second guide member 410 are arranged in parallel, so that the width between the first antenna body 220 and the first guide member 310 and the second guide member 410, that is, the first preset induction gap 500 and the second preset induction gap 600 maintain a stable value, thereby making the electromagnetic wave radiation through the first preset induction gap 500 and the second preset induction gap 600 more uniform.

[0051] like Figure 2As shown, in one embodiment, the preset angle between the first antenna body 220 and the second antenna body 230 is 90°. In this embodiment, the preset angle between the first antenna body 220 and the second antenna body 230 is 90°, that is, the first antenna body 220 and the second antenna body 230 are perpendicular to each other, that is, the second antenna body 230 and the first guide member 310 are also arranged vertically, so that the electromagnetic wave signal of the second antenna body 230 is guided and transmitted through the first guide member 310, further enhancing the directivity and gain of the signal antenna 200, and increasing the detectable range of the car, thereby achieving the signal transmission effect of the signal antenna 200 at an ultra-wide angle.

[0052] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when the operating frequency of the ultra-wide-angle antenna structure is 5.9 GHz, the gain diagram of the ultra-wide-angle antenna structure under different Theta (θ), the ultra-wide-angle antenna structure of the above embodiment has the following characteristics:

[0053] 1. The gain of the ultra-wide-angle antenna structure of the above embodiment is mainly concentrated in 0°-90° and 0°-270°, that is, the gain dispersion angle is close to 180°, so that the car can be detected within a range of 180° to reduce the occurrence of traffic accidents;

[0054] 2. The gain of the ultra-wide-angle antenna structure of the above embodiment is also distributed in 90°-150° and 210°-270°, that is, the gain range of the ultra-wide-angle antenna structure is relatively large, which can reach 250°. This enables the car to achieve an ultra-wide-angle signal transmission effect and improves the detectable range of the car.

[0055] Furthermore, if Figure 8 As shown in the figure, the curve shows the change of S parameter (amplitude) of the ultra-wide-angle antenna structure at different frequencies. When the antenna frequency is 5.85GHz, the amplitude of the S parameter is -15.2241dB, and when the antenna frequency is 5.9GHz, the amplitude of the S parameter is -17.51838dB, that is, in this frequency range, the amplitude of the S parameter is lower than -10dB, indicating that most of the input signal is effectively received and radiated by the antenna instead of being reflected back, so that the car can achieve ultra-wide-angle signal transmission effect and improve the detectable range of the car.

[0056] The present application also provides a vehicle-mounted antenna module, comprising a packaging shell and an ultra-wide-angle antenna structure as described in any of the above embodiments, wherein the ultra-wide-angle antenna structure is installed in the packaging shell, and the packaging shell is used to be installed on a car. It can be understood that by installing the ultra-wide-angle antenna structure in the packaging shell, the packaging shell is installed on the car, and since the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director are reduced in sequence, there is a first preset induction gap between the first director and the signal antenna, there is a second preset induction gap between the second director and the signal antenna, and the second preset induction gap is greater than the first preset induction gap, when the signal antenna generates electromagnetic waves when working, the first director guides the electromagnetic waves to propagate in one direction, and the second director guides the electromagnetic waves to propagate in another direction, so that the electromagnetic waves of the signal antenna are guided by the first director and the second director together, the directivity and gain of the antenna structure are enhanced, and the gain distribution of the antenna structure is more uniform, thereby increasing the detectable range of the car and achieving the signal transmission effect of the ultra-wide angle of the antenna structure.

[0057] In one embodiment, the vehicle-mounted antenna module also includes a 5G antenna, and the 5G antenna is installed on the circuit board, and the 5G antenna is arranged adjacent to the signal antenna. In this embodiment, by adding a 5G antenna to the ultra-wide-angle antenna structure, the ultra-wide-angle antenna structure has the performance of low latency and large bandwidth communication, so that the vehicle-mounted antenna module is used in smart cars to achieve real-time communication and collaborative driving between vehicles, and improve road safety and traffic efficiency. In another embodiment, the 5G antenna can also be connected to the signal antenna, that is, the 5G antenna and the signal antenna are integrated, which saves more assembly space for the wide-angle antenna.

[0058] The present application also provides a smart car, comprising the vehicle-mounted antenna module described in any of the above embodiments, wherein the vehicle-mounted antenna module is horizontally or obliquely arranged on the front, roof, rear or rearview mirror of the smart car. In this embodiment, the vehicle-mounted antenna module can be horizontally or obliquely arranged on the front, roof, rear or rearview mirror of the smart car through structural settings, so that the gain distribution of the ultra-wide-angle antenna structure is more uniform, thereby increasing the detectable range of the car and achieving the ultra-wide-angle signal transmission effect of the ultra-wide-angle antenna structure.

[0059] Compared with the prior art, the present invention has at least the following advantages:

[0060] In the ultra-wide-angle antenna structure 10, the first director 300, the second director 400 and the signal antenna 200 are all installed on the same side of the circuit board 100, the signal antenna 200 is located between the first director 300 and the second director 400, the heights of the first director 300, the signal antenna 200 and the second director 400 are successively reduced, a first preset sensing gap 500 is present between the first director 300 and the signal antenna 200, a second preset sensing gap 600 is present between the second director 400 and the signal antenna 200, and the second The preset sensing gap 600 is larger than the first preset sensing gap 500. When the signal antenna 200 generates electromagnetic waves, the first director 300 guides the electromagnetic waves to propagate in one direction, and the second director 400 guides the electromagnetic waves to propagate in another direction. In this way, the electromagnetic waves of the signal antenna 200 are jointly guided by the first director 300 and the second director 400, thereby enhancing the directivity and gain of the antenna structure, making the gain distribution of the antenna structure more uniform, thereby increasing the detectable range of the car and achieving an ultra-wide-angle signal transmission effect of the antenna structure.

[0061] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. An ultra-wide-angle antenna structure, comprising a circuit board and a signal antenna, wherein the signal antenna is electrically connected to a signal transceiver end of the circuit board, characterized in that: The ultra-wide-angle antenna structure also includes a first director and a second director, the first director and the second director are electrically connected to the two director ends of the circuit board respectively, the first director, the second director and the signal antenna are located on the same side of the circuit board, the signal antenna is located between the first director and the second director, the heights of the first director, the signal antenna and the second director decrease successively, the distance between the first director and the signal antenna is a first preset induction gap, the distance between the second director and the signal antenna is a second preset induction gap, the second preset induction gap is larger than the first preset induction gap, and the first director and the second director are both used to guide the signal diffusion of the signal antenna.

2. The ultra-wide-angle antenna structure according to claim 1, characterized in that: The first preset sensing gap is 0.3mm-0.6mm; and / or, The second preset sensing gap is 5mm-6mm.

3. The ultra-wide-angle antenna structure according to claim 1, characterized in that: The height of the first director is 8.0 mm-8.5 mm; and / or, The height of the signal antenna is 5.0 mm-5.5 mm; and / or, The height of the second director is 3.0 mm-3.5 mm.

4. The ultra-wide-angle antenna structure according to claim 1, characterized in that: The first director includes a first director and three first connecting posts, one end of each of the first connecting posts is connected to the circuit board, wherein the other ends of two of the first connecting posts are respectively connected to two opposite sides of the first director, and the other end of another of the first connecting posts is connected to a side of the first director away from the signal antenna, so that the three first connecting posts are distributed in a triangular shape; and / or, The second director includes a second guiding member and three second connecting columns, one end of each of the second connecting columns is connected to the circuit board, wherein the other ends of two of the second connecting columns are respectively connected to the opposite sides of the second guiding member, and the other end of another second connecting column is connected to the side of the second guiding member away from the signal antenna, so that the three second connecting columns are distributed in a triangular shape.

5. The ultra-wide-angle antenna structure according to claim 4, characterized in that: Both ends of the first guiding member on one side adjacent to the signal antenna are protruded with arc-shaped guide parts, the two arc-shaped guide parts are symmetrically arranged relative to the signal antenna, and the signal antenna is located between the two arc-shaped guide parts in the vertical direction.

6. The ultra-wide-angle antenna structure according to claim 4, characterized in that: The signal antenna includes a conductive part, a first antenna body and a second antenna body, the first antenna body is electrically connected to the conductive part and the second antenna body respectively, the conductive part is electrically connected to the circuit board, there is a preset angle between the first antenna body and the second antenna body, the second antenna body is arranged adjacent to the second guide, and the first antenna body, the first guide and the second guide are arranged in parallel.

7. The ultra-wide-angle antenna structure according to claim 6, characterized in that: A preset angle between the first antenna body and the second antenna body is 90°.

8. A vehicle-mounted antenna module, characterized in that: The invention comprises a packaging shell and the ultra-wide-angle antenna structure according to any one of claims 1 to 7, wherein the ultra-wide-angle antenna structure is installed in the packaging shell, and the packaging shell is used to be installed on a car.

9. The vehicle-mounted antenna module according to claim 8, characterized in that: The vehicle-mounted antenna module also includes a 5G antenna, which is installed on the circuit board and is arranged adjacent to the signal antenna.

10. A smart car, characterized in that: The vehicle-mounted antenna module comprises any one of claims 8 to 9, wherein the vehicle-mounted antenna module is horizontally or obliquely arranged on the front, roof, rear or rearview mirror of the smart car.

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