Wide-angle patch antenna structure, vehicle-mounted antenna and vehicle-mounted communication equipment

Abstract

The utility model provides a wide-angle patch antenna structure, a vehicle-mounted antenna and vehicle-mounted communication equipment. The wide-angle patch antenna structure comprises a feed transmit-receive patch, a feed radiation patch and an induction radiation patch. The feed transmit-receive patch and the feed radiation patch are arranged at an interval. The induction radiation patch is connected to the feed transmit-receive patch, and the feed radiation patch is separated from the feed transmit-receive patch; a first induction gap is arranged between the feed radiation patch and the induction radiation patch; a part of the feed radiation patch and a part of the induction radiation patch extend in opposite directions and respectively form radiation expansion parts; the wide-angle patch antenna structure has the advantages that the wide-angle patch antenna structure comprises two radiation expansion portions, each radiation expansion portion is arc-shaped and is bent towards one side edge of the feed transceiving patch, and the bending directions of the two radiation expansion portions are opposite, so that communication radiation can be dispersed under the guidance of the radiation expansion portions, the gain distribution of the wide-angle patch antenna structure is more uniform, the detection range of an automobile can be expanded, and the detection efficiency of the automobile is improved. Therefore, the automobile can better adapt to changeable driving conditions around the automobile body.

Description

Technical Field

[0001] This disclosure relates to the technical field of vehicle communication, and in particular to a wide-angle patch antenna structure, a vehicle antenna, and a vehicle communication device. Background Technology

[0002] With the development of 5G technology, automobiles are gradually moving towards intelligence and connectivity. Cars are typically equipped with data capture devices such as antennas and cameras to assist drivers in safe driving in real time based on changes in surrounding driving conditions. Currently, most antennas are complex and bulky, increasing their space requirements when installed in a car. Therefore, some manufacturers have undertaken further research and development. For example, the concealed car antenna disclosed in Chinese patent document CN2394334Y is flat and can be installed inside the windshield to effectively reduce its space requirements. However, due to the design of this concealed car antenna, its gain is mainly distributed in one direction, which limits the car's detection range and makes it difficult to adapt to the changing driving conditions around the vehicle. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a wide-angle patch antenna structure, vehicle antenna, and vehicle communication device with a more uniform and dispersed gain distribution.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A wide-angle patch antenna structure includes a feed transceiver patch and a feed radiating patch, wherein the feed transceiver patch and the feed radiating patch are spaced apart; the feed transceiver patch is used for electrical connection to a ground wire; the feed radiating patch is used for electrical connection to a feed network;

[0006] The wide-angle patch antenna structure also includes an inductive radiation patch;

[0007] The power-feed transceiver patch, the power-feed radiating patch, and the inductive radiating patch are all mounted on the same side of the glass substrate; the inductive radiating patch is connected to the power-feed transceiver patch, and the power-feed radiating patch is separated from the power-feed transceiver patch; a first inductive gap is provided between the power-feed radiating patch and the inductive radiating patch, the first inductive gap being used to generate communication radiation through electromagnetic energy coupling; a portion of the power-feed radiating patch and a portion of the inductive radiating patch extend in opposite directions, and respectively form a radiation extension portion; each of the radiation extension portions bends in an arc towards one side of the power-feed transceiver patch, and the bending directions of the two radiation extension portions are opposite to each other, so as to guide the diffusion of the communication radiation.

[0008] In some embodiments, the feed radiating patch includes a feed linear portion and a first radiating extension portion connected together, and the inductive radiating patch includes an inductive linear portion and a second radiating extension portion connected together; the feed linear portion is electrically connected to a feed network, and the inductive linear portion is connected to the feed transceiver patch; a first inductive gap is formed between the feed linear portion and the inductive linear portion; the first radiating extension portion and the second radiating extension portion extend in opposite directions, the first radiating extension portion bends toward a first side of the feed transceiver patch, and the second radiating extension portion bends toward a second side of the feed transceiver patch, with the first side and the second side positioned opposite each other.

[0009] In some embodiments, the first radiating extension and the second radiating extension are located on the arc of the first circle.

[0010] In some embodiments, the wide-angle patch antenna structure further includes a radiation guiding patch; the radiation guiding patch is disposed on the outer periphery of the first circle and close to the side of the feed transceiver patch; at least one of the first radiation extension portion and the second radiation extension portion forms a second inductive gap with the radiation guiding patch.

[0011] In some embodiments, the radiation guiding patch includes a first radiation guiding side piece and a second radiation guiding side piece; the first radiation guiding side piece is close to a first side of the feed transceiver patch, and a second sensing gap is formed between the first radiation guiding side piece and the first radiation extension portion; the second radiation guiding side piece is close to a second side of the feed transceiver patch, and another second sensing gap is formed between the second radiation guiding side piece and the second radiation extension portion.

[0012] In some embodiments, the intersection of one side line of the power supply transceiver patch connected to the sensing straight line and the middle bisector of the first sensing gap is the center of the first circle.

[0013] In some embodiments, the first radiation extension portion and the second radiation extension portion are arranged symmetrically to each other.

[0014] In some embodiments, the power supply line section and the induction line section are arranged parallel to each other.

[0015] A vehicle-mounted antenna includes the wide-angle patch antenna structure of any of the above embodiments.

[0016] A vehicle-mounted communication device includes a glass substrate and a wide-angle patch antenna structure according to any of the above embodiments; the feed transceiver patch, the feed radiating patch, and the inductive radiating patch are all mounted on the same side of the glass substrate.

[0017] Compared with the prior art, this disclosure has at least the following advantages:

[0018] The aforementioned wide-angle patch antenna structure, due to the first inductive gap between the feed radiating patch and the inductive radiating patch, allows electromagnetic energy coupling between them, generating communication radiation. Furthermore, because the radiating extensions of the feed radiating patch and the inductive radiating patch extend in opposite directions and curve towards one side of the feed transceiver patch, with the curvature directions of the two extensions being opposite, the communication radiation is dispersed under the guidance of each extension. This results in a more uniform gain distribution in the wide-angle patch antenna structure, thereby improving the vehicle's detection range and making the vehicle more adaptable to varying driving conditions around it. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a wide-angle patch antenna structure according to an embodiment of the present disclosure;

[0021] Figure 2 for Figure 1 The diagram shows a planar schematic of the wide-angle patch antenna structure.

[0022] Figure 3 for Figure 1 The passive radiation pattern of the wide-angle patch antenna structure shown is at an operating frequency of 5.91 GHz;

[0023] Figure 4 This is a schematic diagram of a wide-angle patch antenna structure according to another embodiment of the present disclosure;

[0024] Figure 5 This is a partial enlarged view of the surface of a wide-angle patch antenna structure according to another embodiment of the present disclosure;

[0025] Figure 6 This is a schematic diagram of the structure of an in-vehicle communication device according to another embodiment of the present disclosure.

[0026] Figure label:

[0027] 10. Vehicle-mounted communication equipment;

[0028] 100. Wide-angle patch antenna structure; 200. Glass substrate; 101. Light-transmitting hole; 1011. Light-transmitting adhesive block; 1010. Reserved aperture;

[0029] 110. Power supply transceiver patch;

[0030] 120. Feeding radiating patch; 1210. Feeding linear section; 1220. First radiating extension section; 1201. First induction gap; 1202. First circle; 1203. Second circle; 1204. Third circle;

[0031] 130. Induction radiation patch; 1310. Induction linear section; 1320. Second radiation extension section;

[0032] 1410, First radiation guiding side plate; 1420, Second radiation guiding side plate; 1401, Second sensing gap; 1430, First radiation guiding outer side plate; 1440, Second radiation guiding outer side plate; 1402, Third sensing gap; 1403, Fourth sensing gap;

[0033] 150. Calibration disk; 1510. Center calibration point; 1501. First calibration arc; 1502. Second calibration arc; 1503. Third calibration arc. Detailed Implementation

[0034] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

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

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0038] Please see Figure 1 One embodiment of the wide-angle patch antenna structure 100 includes a feed transceiver patch 110, a feed radiating patch 120, and an inductive radiating patch 130; the feed transceiver patch 110 and the feed radiating patch 120 are spaced apart; the feed transceiver patch 110 is electrically connected to a ground wire; the feed radiating patch 120 is electrically connected to a feed network; the feed transceiver patch 110, the feed radiating patch 120, and the inductive radiating patch 130 are all mounted on the same side of a glass substrate 200; the inductive radiating patch 130 is connected to the feed transceiver patch 110. The feed radiating patch 120 is separated from the feed transceiver patch 110; a first induction gap 1201 is provided between the feed radiating patch 120 and the induction radiating patch 130, and the first induction gap 1201 is used to generate communication radiation through electromagnetic energy coupling; a portion of the feed radiating patch 120 and a portion of the induction radiating patch 130 extend in opposite directions and respectively form a radiation extension portion; each radiation extension portion bends in an arc towards one side of the feed transceiver patch 110, and the bending directions of the two radiation extension portions are opposite to each other, so as to guide the diffusion of communication radiation.

[0039] It is understood that, due to the first sensing gap 1201 between the feed radiating patch 120 and the sensing radiating patch 130, electromagnetic energy coupling is formed between them through the first sensing gap 1201 to generate communication radiation. Furthermore, because the radiation extensions of the feed radiating patch 120 and the sensing radiating patch 130 extend in opposite directions and bend towards one side of the feed transceiver patch 110 in an arc shape, and the bending directions of the two radiation extensions are opposite, the communication radiation can be dispersed under the guidance of each radiation extension, thereby making the gain distribution of the wide-angle patch antenna structure 100 more uniform, thus improving the detection range of the vehicle and making the vehicle more adaptable to the changing driving conditions around the vehicle.

[0040] In some embodiments, the power supply transceiver patch 110 is a ground patch. When transmitting and receiving signals, the ground patch uses a ground signal as a reference signal, and the transmission signal loaded on the ground patch is a harmonic signal, which facilitates stable transmission of the signal. The ground signal is a standard AC signal, such as a sine / cosine signal or a square / sawtooth AC signal. Of course, this is not a limitation, and those skilled in the art can make other choices as needed.

[0041] Please see Figure 2In some embodiments, the feed radiating patch 120 includes a feed straight section 1210 and a first radiating extension section 1220 connected together, and the sensing radiating patch 130 includes a sensing straight section 1310 and a second radiating extension section 1320 connected together; the feed straight section 1210 is used to be electrically connected to the feed network, and the sensing straight section 1310 is connected to the feed transceiver patch 110; a first sensing gap 1201 is formed between the feed straight section 1210 and the sensing straight section 1310; the first radiating extension section 1220 and the second radiating extension section 1320 extend in opposite directions, the first radiating extension section 1220 bends toward a first side of the feed transceiver patch 110, and the second radiating extension section 1320 bends toward a second side of the feed transceiver patch 110, with the first side and the second side being positioned opposite each other. It is understood that, since a first induction gap 1201 is formed between the feed line section 1210 and the induction line section 1310, when the feed line section 1210 is electrically connected to the feed network, electromagnetic energy coupling is formed between the feed line section 1210 and the induction line section 1310 through the first induction gap 1201, thereby generating stable communication radiation. Furthermore, since the first radiation extension section 1220 and the second radiation extension section 1320 extend in opposite directions, by bending the first radiation extension section 1220 toward the first side of the feed transceiver patch 110, the communication radiation can be guided toward the first side of the feed transceiver patch 110; by bending the second radiation extension section 1320 toward the second side of the feed transceiver patch 110, the communication radiation can be guided toward the second side of the feed transceiver patch 110. This allows the gain of the wide-angle patch antenna structure 100 to be distributed to the opposite sides of the feed transceiver patch 110, thereby further improving the detection range of the vehicle.

[0042] Please see Figure 3 In some embodiments, the first radiation extension 1220 and the second radiation extension 1320 are located on the arc of the first circle 1202. It can be understood that since the first radiation extension 1220 and the second radiation extension 1320 are located on the arc of the first circle 1202, that is, the first radiation extension 1220 and the second radiation extension 1320 are on the same arc line, that is, the curvature of the first radiation extension 1220 and the second radiation extension 1320 is consistent, the communication radiation diffuses more evenly to the opposite sides of the feed transceiver patch 110.

[0043] In some embodiments, the wide-angle patch antenna structure 100 further includes a radiating guide patch; the radiating guide patch is disposed on the outer periphery of the first circle 1202 and close to the side of the feed transceiver patch 110; at least one of the first radiating extension portion 1220 and the second radiating extension portion 1320 forms a second inductive gap 1401 with the radiating guide patch. It can be understood that because the radiating guide patch is disposed on the outer periphery of the first circle 1202, and at least one of the first radiating extension portion 1220 and the second radiating extension portion 1320 forms a second inductive gap 1401 with the radiating guide patch, electromagnetic energy coupling is formed through the second inductive gap 1401, enabling new communication radiation to be generated on the radiating guide patch. Furthermore, because the radiating guide patch is disposed close to the side of the feed transceiver patch 110, it can additionally compensate for the lateral gain of the wide-angle patch antenna structure 100, thereby further accelerating the reduction of the difference between the lateral gain and the gain at the intermediate position of the wide-angle patch antenna structure 100.

[0044] Please see Figure 2 In some embodiments, the radiation guiding patch includes a first radiation guiding side piece 1410 and a second radiation guiding side piece 1420. The first radiation guiding side piece 1410 is close to the first side of the feed transceiver patch 110, and a second induction gap 1401 is formed between the first radiation guiding side piece 1410 and the first radiation extension portion 1220. The second radiation guiding side piece 1420 is close to the second side of the feed transceiver patch 110, and another second induction gap 1401 is formed between the second radiation guiding side piece 1420 and the second radiation extension portion 1320. It can be understood that by the first radiation guiding side piece 1410 being disposed close to the first side of the feed transceiver patch 110 and forming a second induction gap 1401 with the first radiation extension portion 1220, electromagnetic energy coupling can be formed through the second induction gap 1401, causing the first side of the feed transceiver patch 110 to generate new communication radiation. Similarly, the second radiation guiding side plate 1420 is disposed close to the second side of the feed transceiver patch 110 and forms another second sensing gap 1401 with the second radiation extension portion 1320. Electromagnetic energy coupling can be formed through the second sensing gap 1401, so that the first side of the feed transceiver patch 110 generates new communication radiation, so that the gain of the wide-angle patch antenna structure 100 at the first side and the second side of the feed transceiver patch 110 tends to be consistent, thereby making the detection range of the vehicle more uniformly distributed.

[0045] Please see Figure 2 and Figure 3In some embodiments, the first radiation guiding side piece 1410 and the second radiation guiding side piece 1420 are both arc-shaped and symmetrically disposed on the arc of the second circle 1203; the radiation guiding patch also includes a first radiation guiding outer side piece 1430 and a second radiation guiding outer side piece 1440, which are respectively disposed on the outer periphery of the second circle 1203; the first radiation guiding outer side piece 1430 is close to the first side edge of the feed transceiver patch 110, and the first radiation guiding outer side piece 1430 and the first radiation guiding side piece A third induction gap 1402 is formed between 1410; the second radiating guide outer plate 1440 is close to the second side of the feed transceiver patch 110, and a fourth induction gap 1403 is formed between the second radiating guide outer plate 1440 and the second radiating guide side plate 1420; the third induction gap 1402 is equal to the fourth induction gap 1403; the first radiating guide outer plate 1430 and the second radiating guide outer plate 1440 are both arc-shaped and symmetrically arranged on the arc of the third circle 1204; the first circle 1202, the second circle 1203 and the third circle 1204 are concentrically arranged. It can be understood that by the first radiating guide outer plate 1430 being close to the first side of the feed transceiver patch 110 and forming the third induction gap 1402 with the first radiating guide outer plate 1430, electromagnetic energy coupling can be formed through the third induction gap 1402, thereby increasing the communication radiation of the first side of the feed transceiver patch 110 again. Similarly, the second radiation-guiding outer patch 1440 is positioned close to the second side of the feed transceiver patch 110, forming a fourth induction gap 1403. Electromagnetic energy coupling can be achieved through the fourth induction gap 1403, further increasing communication radiation on the second side of the feed transceiver patch 110. Thus, the gain of the wide-angle patch antenna structure 100 distributed on the first and second sides of the feed transceiver patch 110 can be further enhanced, ultimately effectively extending the lateral detection range of the vehicle.

[0046] Please see Figure 3 When the operating frequency of the wide-angle patch antenna structure 100 is 5.91 GHz, the performance of the wide-angle patch antenna structure 100 in the above embodiment exhibits the following advantages:

[0047] 1) The gain dispersion angle of the wide-angle patch antenna structure 100 in the above embodiment is close to 180°, which enables the vehicle to be detected within a range of nearly 180°, thereby reducing the occurrence of traffic accidents;

[0048] 2) The wide-angle patch antenna structure 100 in the above embodiment has a relatively large gain in the 180° range, and the gain is similar at each angle in the 180° range. This enables the vehicle to have good and balanced signal transmission and reception performance in the 180° range, so that the vehicle can maintain sensitive communication in the 180° range and make timely obstacle avoidance responses.

[0049] 3) The gain of the wide-angle patch antenna structure 100 in the above embodiments is within the safe range, that is, it does not exceed the controllable range. The communication effect of the wide-angle patch antenna structure 100 in the above embodiments can still be controlled by conventional means to ensure the safe driving of the car.

[0050] Typically, since the first radiation guiding side plate 1410, the second radiation guiding side plate 1420, the first radiation guiding outer side plate 1430, the second radiation guiding outer side plate 1440, and the feed radiation patch 120 are all separated from the feed transceiver patch 110, the positions of the first radiation guiding side plate 1410, the second radiation guiding side plate 1420, the first radiation guiding outer side plate 1430, the second radiation guiding outer side plate 1440, and the feed radiation patch 120 will deviate during the installation of the wide-angle patch antenna structure 100, which will affect the gain distribution of the wide-angle patch antenna structure 100.

[0051] Please refer to the following: Figure 2 and Figure 4To address the aforementioned issues, in some embodiments, the wide-angle patch antenna structure 100 further includes a calibration disk 150. The calibration disk 150 has a center calibration point 1510, a first calibration arc 1501, a second calibration arc 1502, and a third calibration arc 1503. The center calibration point 1510 is located at the center of the arc of the calibration disk 150. The circles containing the first calibration arc 1501, the second calibration arc 1502, and the third calibration arc 1503 are all arranged sequentially from the inside out, centered on the center calibration point 1510. The distance between the first calibration arc 1501 and the second calibration arc 1502 is equal to the second induction gap 1401; the distance between the second calibration arc 1502 and the third calibration arc 1503 is equal to the third induction gap 1401. Gap 1402; The first radiation guiding side plate 1410, the second radiation guiding side plate 1420, the first radiation guiding outer side plate 1430, the second radiation guiding outer side plate 1440, the feed radiation patch 120, the induction radiation patch 130 and the feed transceiver patch 110 are all disposed on the same side of the calibration disk 150. The first radiation extension portion 1220 and the second radiation extension portion 1320 are respectively attached to the two side edges of the first calibration arc 1501. The first radiation guiding side plate 1410 and the second radiation guiding side plate 1420 are respectively attached to the two side edges of the second calibration arc 1502. The first radiation guiding outer side plate 1430 and the second radiation guiding outer side plate 1440 are respectively attached to the two side edges of the third calibration arc 1503. It is understandable that, since the first radiation extension portion 1220 and the second radiation extension portion 1320 are respectively attached to the two sides of the first calibration arc 1501, the first radiation guiding side piece 1410 and the second radiation guiding side piece 1420 are respectively attached to the two sides of the second calibration arc 1502, and the first radiation guiding outer side piece 1430 and the second radiation guiding outer side piece 1440 are respectively attached to the two sides of the third calibration arc 1503, the other sides of the first radiation guiding side piece 1410, the second radiation guiding side piece 1420, the first radiation guiding outer side piece 1430, the second radiation guiding outer side piece 1440, the feed radiation patch 120 and the feed transceiver patch 110 can be quickly and accurately pasted onto the glass with adhesive layer, so as to achieve rapid installation of the wide-angle patch antenna structure 100. The calibration disk 150 is made of a material with a high dielectric constant, such as an optical ceramic dielectric sheet. The thickness of the calibration disk 150 is 0.5 mm to 1 mm, which is much smaller than the wavelength of electromagnetic waves and is transparent.

[0052] Please see Figure 2In some embodiments, the intersection of one side edge of the feed transceiver patch 110 connected to the sensing straight line 1310 and the middle bisector of the first sensing gap 1201 is the center O of the first circle 1202. It can be understood that since the intersection of one side edge of the feed transceiver patch 110 and the middle bisector of the first sensing gap 1201 is the center O of the first circle 1202, the first radiation extension 1220 and the second radiation extension 1320 are distributed around one side edge of the feed transceiver patch 110. This causes the distance between each point on the first radiation extension 1220, each point on the second radiation extension 1320, and the middle bisector of the first sensing gap 1201 to increase synchronously and slowly. This allows the communication radiation generated between the first sensing gaps 1201 to be smoothly guided to both sides of the feed transceiver patch 110, thereby allowing the gain of the wide-angle patch antenna structure 100 to be more stably distributed.

[0053] Please see Figure 2 In some embodiments, the first radiation extension 1220 and the second radiation extension 1320 are symmetrically arranged. It can be understood that because the first radiation extension 1220 and the second radiation extension 1320 are symmetrically arranged, the guiding effect of the first radiation extension 1220 on communication radiation and the guiding effect of the second radiation extension 1320 on communication radiation are symmetrical, further making the communication radiation more evenly distributed on both sides of the power-feed transceiver patch 110.

[0054] Please see Figure 2 In some embodiments, the power supply line section 1210 and the sensing line section 1310 are arranged parallel to each other. It can be understood that because the power supply line section 1210 and the sensing line section 1310 are arranged parallel to each other, the width of the first sensing gap 1201 remains stable, thereby allowing the communication radiation generated through the first sensing gap 1201 to be more evenly distributed between the power supply line section 1210 and the sensing line section 1310, and further enabling the communication radiation to be evenly dispersed through the first radiation extension section 1220 and the second radiation extension section 1320.

[0055] Typically, unexpected situations are more likely to occur in front of or behind a car while driving, so people often place the aforementioned wide-angle patch antenna structure 100 on the windshield or rear windshield of the car to receive signals. However, since the feed transceiver patch 110, feed radiating patch 120 and inductive radiating patch 130 are mainly copper foil sheets with colored surfaces, when the wide-angle patch antenna structure 100 is placed on the windshield or rear windshield of the car, the feed transceiver patch 110, feed radiating patch 120 and inductive radiating patch 130 can easily obstruct the driver's view.

[0056] Please see Figure 5 To address the aforementioned issues, in some embodiments, the power-feed transceiver patch 110, the power-feed radiating patch 120, and the induction radiating patch 130 are all provided with a plurality of light-transmitting holes 101 spaced apart. Specifically, the aperture of each light-transmitting hole 101 is 5 μm; the distance between each light-transmitting hole 101 and the other light-transmitting holes 101 around it is 10 μm. It is understandable that since the aperture of each light-transmitting hole 101 opened on the power supply transceiver patch 110, the power supply radiating patch 120, and the induction radiating patch 130 is 5μm, and the distance between each light-transmitting hole 101 and the other light-transmitting holes 101 around it is 10μm, not only can light be transmitted through the light-transmitting holes 101, but the structural strength of the power supply transceiver patch 110, the power supply radiating patch 120, and the induction radiating patch 130 is also guaranteed. Ultimately, the power supply transceiver patch 110, the power supply radiating patch 120, and the induction radiating patch 130 can achieve light transmission after being laid on the windshield or rear windshield of a car, so as to reduce the obstruction of the driver's vision.

[0057] Typically, the wide-angle patch antenna structure 100 is glued to the windshield or rear windshield using adhesive bonding. Since the feed transceiver patch 110, the feed radiating patch 120, and the induction radiating patch 130 are all provided with a number of light-transmitting holes 101 at intervals, the feed transceiver patch 110, the feed radiating patch 120, and the induction radiating patch 130 are all very soft. They are not only easy to deform and shift during the pasting process, but also easy to be damaged if the wide-angle patch antenna structure 100 needs to be peeled off and pasted again.

[0058] Please see Figure 5To address the aforementioned issues, in some embodiments, each light-transmitting hole 101 contains a light-transmitting adhesive block 1011, which is adhered to the wall of the corresponding light-transmitting hole 101. A plurality of reserved gaps 1010 are formed between each light-transmitting adhesive block 1011 and the wall of the corresponding light-transmitting hole 101, with these gaps spaced apart around the light-transmitting adhesive block 1011. It can be understood that by providing a light-transmitting adhesive block 1011 within each light-transmitting hole 101 and adhering each light-transmitting adhesive block 1011 to the wall of the corresponding light-transmitting hole 101, the structure of the feed transceiver patch 110, the feed radiating patch 120, and the induction radiating patch 130 can be reinforced. Furthermore, the gradual adhesion achieved through the light-transmitting adhesive block 1011 reduces deformation and displacement of the wide-angle patch antenna structure 100, and makes it less prone to damage when the wide-angle patch antenna structure 100 is removed. Furthermore, since each light-transmitting adhesive block 1011 has several reserved gaps 1010 between it and the wall of the corresponding light-transmitting hole 101, during the pasting process, air can be allowed to pass through the reserved gaps 1010, allowing the wide-angle patch antenna structure 100 to be flatly attached. At the same time, after the wide-angle patch antenna structure 100 is accurately pasted in position, the unevenness of the wide-angle patch antenna structure 100 due to the size difference of the light-transmitting adhesive blocks 1011 can be flattened by squeezing the light-transmitting adhesive blocks 1011 to fill the corresponding reserved gaps 1010, thereby reducing the unevenness of the wide-angle patch antenna structure 100 and further bonding the light-transmitting adhesive blocks 1011 to the wall of the reserved gaps 1010, ultimately strengthening and reinforcing the wide-angle patch antenna structure 100.

[0059] In some embodiments, the light-transmitting adhesive block 1011 is a UV gel block. It is understood that the application of the wide-angle patch antenna structure 100 can be performed in an environment without ultraviolet light. This allows for easy adjustment of the positions of the feed transceiver patch 110, the feed radiating patch 120, and the induction radiating patch 130 after the wide-angle patch antenna structure 100 is attached to the windshield. This not only reduces the risk of damage to the wide-angle patch antenna structure 100 but also allows for secure fixation to the windshield after UV light irradiation following position calibration. Of course, in other embodiments, the light-transmitting adhesive block 1011 can be an optically transparent adhesive, such as fir resin glue or Canada balsam.

[0060] This disclosure also provides a vehicle-mounted antenna, including the wide-angle patch antenna structure 100 of any of the above embodiments. It is understood that by applying the wide-angle patch antenna structure 100 of this disclosure to a vehicle-mounted antenna, since the radiation extension portion of the feed radiating patch 120 and the radiation extension portion of the inductive radiating patch 130 extend in opposite directions and respectively bend in an arc towards one side of the feed transceiver patch 110, the communication radiation can be dispersed under the guidance of each radiation extension portion. This results in a more uniform gain distribution of the wide-angle patch antenna structure 100, thereby improving the vehicle's detection range and making the vehicle more adaptable to varying driving conditions around the vehicle.

[0061] Please refer to the following: Figure 1 and Figure 6 This disclosure also provides an in-vehicle communication device 10, including a glass substrate 200 and a wide-angle patch antenna structure 100 of any of the above embodiments; the feed transceiver patch 110, the feed radiating patch 120, and the inductive radiating patch 130 are all mounted on the same side of the glass substrate 200. It can be understood that by applying the wide-angle patch antenna structure 100 of this disclosure to the in-vehicle communication device 10, the feed transceiver patch 110, the feed radiating patch 120, and the inductive radiating patch 130 are all mounted on the same side of the glass substrate 200. Since the radiation extension portion of the feed radiating patch 120 and the radiation extension portion of the inductive radiating patch 130 extend in opposite directions and bend towards one side of the feed transceiver patch 110 in an arc shape, the communication radiation can be dispersed under the guidance of each radiation extension portion, thereby making the gain distribution of the wide-angle patch antenna structure 100 more uniform, and thus improving the detection range of the vehicle, making the vehicle more adaptable to the changing driving conditions around the vehicle body.

[0062] Please see Figure 6 In some embodiments, the number of glass substrates 200 includes at least two, and the glass substrates 200 are stacked. The wide-angle patch antenna structure 100 is disposed between two adjacent glass substrates 200, and each side of the wide-angle patch antenna structure 100 is bonded to one glass substrate 200. It can be understood that since the wide-angle patch antenna structure 100 is disposed between two adjacent glass substrates 200, by bonding each side of the wide-angle patch antenna structure 100 to one glass substrate 200, not only can the wide-angle patch antenna structure 100 be laid out flat to receive signals under the clamping of the two glass substrates 200, but the wide-angle patch antenna structure 100 can also be tightly connected to each glass substrate 200 to avoid slippage.

[0063] Please combine Figure 1As shown, this disclosure also provides a vehicle, including a vehicle body and at least two vehicle communication devices 10 according to any of the above embodiments, each vehicle communication device 10 being installed at the front and rear ends of the vehicle body in the direction of travel. It can be understood that by applying the vehicle communication devices 10 of this disclosure to a vehicle, with each vehicle communication device 10 installed at the front and rear ends of the vehicle body in the direction of travel, the wide-angle patch antenna structure 100 in the vehicle communication device 10 installed at the front end of the vehicle body in the direction of travel can receive signals from the front and sides, and the wide-angle patch antenna structure 100 in the vehicle communication device 10 installed at the rear end of the vehicle body in the direction of travel can receive signals from the rear and sides, thereby achieving signal reception in a 360° direction around the vehicle. In some embodiments, the two vehicle communication devices 10 are the vehicle's windshield and rear windshield. In other embodiments, the two vehicle communication devices 10 are both sunroofs of the vehicle, with the two sunroofs respectively located at the front and rear ends of the vehicle.

[0064] Compared with the prior art, this disclosure has at least the following advantages:

[0065] The aforementioned wide-angle patch antenna structure 100, due to the first induction gap 1201 provided between the feed radiating patch 120 and the induction radiating patch 130, forms electromagnetic energy coupling between them to generate communication radiation. Furthermore, because the radiation extension portions of the feed radiating patch 120 and the induction radiating patch 130 extend in opposite directions and bend in an arc towards one side of the feed transceiver patch 110, with the bending directions of the two radiation extension portions being opposite, the communication radiation can be dispersed under the guidance of each radiation extension portion. This results in a more uniform gain distribution in the wide-angle patch antenna structure 100, thereby improving the vehicle's detection range and making the vehicle more adaptable to varying driving conditions around the vehicle.

[0066] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A wide-angle patch antenna structure, comprising a feed transceiver patch and a feed radiating patch, wherein the feed transceiver patch and the feed radiating patch are spaced apart; the feed transceiver patch is used for electrical connection to a ground wire; the feed radiating patch is used for electrical connection to a feed network; Its features are, The wide-angle patch antenna structure also includes an inductive radiation patch; The power-feed transceiver patch, the power-feed radiating patch, and the inductive radiating patch are all mounted on the same side of the glass substrate; the inductive radiating patch is connected to the power-feed transceiver patch, and the power-feed radiating patch is separated from the power-feed transceiver patch; a first inductive gap is provided between the power-feed radiating patch and the inductive radiating patch, the first inductive gap being used to generate communication radiation through electromagnetic energy coupling; a portion of the power-feed radiating patch and a portion of the inductive radiating patch extend in opposite directions, and respectively form a radiation extension portion; each of the radiation extension portions bends in an arc towards one side of the power-feed transceiver patch, and the bending directions of the two radiation extension portions are opposite to each other, so as to guide the diffusion of the communication radiation.

2. The wide-angle patch antenna structure according to claim 1, characterized in that, The feed radiating patch includes a feed linear section and a first radiating extension section connected to each other, and the inductive radiating patch includes an inductive linear section and a second radiating extension section connected to each other; the feed linear section is electrically connected to the feed network, and the inductive linear section is connected to the feed transceiver patch. The first sensing gap is formed between the power supply line section and the sensing line section; The first radiating extension portion and the second radiating extension portion extend in opposite directions. The first radiating extension portion bends toward the first side of the power supply transceiver patch, and the second radiating extension portion bends toward the second side of the power supply transceiver patch. The positions of the first side and the second side are opposite to each other.

3. The wide-angle patch antenna structure according to claim 2, characterized in that, The first radiating extension and the second radiating extension are located on the arc of the first circle.

4. The wide-angle patch antenna structure according to claim 3, characterized in that, The wide-angle patch antenna structure further includes a radiation guiding patch; the radiation guiding patch is disposed on the outer periphery of the first circle and close to the side of the feed transceiver patch; at least one of the first radiation extension portion and the second radiation extension portion forms a second inductive gap with the radiation guiding patch.

5. The wide-angle patch antenna structure according to claim 4, characterized in that, The radiation guiding patch includes a first radiation guiding side piece and a second radiation guiding side piece; the first radiation guiding side piece is close to a first side edge of the feed transceiver patch, and a second sensing gap is formed between the first radiation guiding side piece and the first radiation extension portion; the second radiation guiding side piece is close to a second side edge of the feed transceiver patch, and another second sensing gap is formed between the second radiation guiding side piece and the second radiation extension portion.

6. The wide-angle patch antenna structure according to claim 3, characterized in that, The intersection of one side line of the power supply transceiver patch connected to the sensing straight line and the middle bisector of the first sensing gap is the center of the first circle.

7. The wide-angle patch antenna structure according to claim 2, characterized in that, The first radiation extension portion and the second radiation extension portion are arranged symmetrically to each other.

8. The wide-angle patch antenna structure according to claim 2, characterized in that, The power supply linear section and the induction linear section are arranged parallel to each other.

9. A vehicle-mounted antenna, characterized in that, The wide-angle patch antenna structure includes any one of claims 1 to 8.

10. A vehicle-mounted communication device, characterized in that, The antenna includes a glass substrate and a wide-angle patch antenna structure as described in any one of claims 1 to 8; the feed transceiver patch, the feed radiating patch, and the inductive radiating patch are all mounted on the same side of the glass substrate.

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