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

Abstract

The present disclosure provides a wide-angle patch antenna structure, a vehicle-mounted antenna and a vehicle-mounted communication device. The wide-angle patch antenna structure includes a feed transceiver patch, a feed radiation patch and an induction radiation patch; the feed transceiver patch and the feed radiation patch are arranged at intervals; the induction radiation patch is connected to the feed transceiver patch, and the feed radiation patch and the feed transceiver patch are kept separated; 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 form radiation extension parts respectively; each radiation extension part is curved in an arc shape toward one side of the feed transceiver patch, and the bending directions of the two radiation extension parts are opposite, so that the communication radiation can be dispersed under the guidance of each radiation extension part, so that the gain distribution of the wide-angle patch antenna structure is more uniform, which can improve the detection range of the car, so that the car can better adapt to the changing driving conditions around the car body.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle-mounted communications, and in particular to a wide-angle patch antenna structure, a vehicle-mounted antenna, and a vehicle-mounted communication device. Background Art

[0002] With the development of 5G technology, cars are gradually moving towards intelligence and networking. Cars are usually equipped with data capture devices such as antennas and cameras so that they can assist drivers in driving safely in real time according to changes in surrounding driving conditions. At present, most antennas have complex structures and large volumes. Installing them on cars will increase the space occupied, so some manufacturers have made further research and development. For example, the hidden car antenna disclosed in Chinese patent document CN2394334Y is flat and can be installed in the windshield of a car to effectively reduce the space occupied by the car. However, due to the design of the above-mentioned hidden car antenna structure, its gain is mainly distributed in one direction, which will cause the detection range of the car to be limited, making it difficult to adapt to the changing driving conditions around the car body. Summary of the invention

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

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

[0005] A wide-angle patch antenna structure, comprising a feed transceiver patch and a feed radiation patch, wherein the feed transceiver patch and the feed radiation patch are arranged at intervals; the feed transceiver patch is used to be electrically connected to a ground wire; the feed radiation patch is used to be electrically connected to a feed network;

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

[0007] The feeding transceiver patch, the feeding radiation patch and the induction radiation patch are all used to be installed on the same side of the glass substrate; the induction radiation patch is connected to the feeding transceiver patch, and the feeding radiation patch is kept separated from the feeding transceiver patch; a first induction gap is arranged between the feeding radiation patch and the induction radiation patch, and the first induction gap is used to generate communication radiation through electromagnetic energy coupling; a part of the feeding radiation patch and a part of the induction radiation patch extend in opposite directions and respectively form radiation extension parts; each of the radiation extension parts is respectively bent in an arc shape toward one side of the feeding transceiver patch, and the bending directions of the two radiation extension parts are opposite to each other, so as to guide the diffusion of the communication radiation.

[0008] In some embodiments, the feeding radiation patch includes a feeding straight portion and a first radiation extension portion connected to each other, and the induction radiation patch includes an induction straight portion and a second radiation extension portion connected to each other; the feeding straight portion is electrically connected to the feeding network, and the induction straight portion is connected to the feeding transceiver patch; the first induction gap is formed between the feeding straight portion and the induction straight portion; the first radiation extension portion and the second radiation extension portion are extended in opposite directions, the first radiation extension portion is bent close to the first side of the feeding transceiver patch, and the second radiation extension portion is bent close to the second side of the feeding transceiver patch, and the first side and the second side are opposite to each other.

[0009] In some embodiments, the first radiation expansion portion and the second radiation expansion portion are located on an arc of a first circle.

[0010] In some embodiments, the wide-angle patch antenna structure also includes a radiation guide patch; the radiation guide patch is arranged on the outer circumference of the first circle and close to the side of the feeding transceiver patch; a second induction gap is formed between at least one of the first radiation extension part and the second radiation extension part and the radiation guide patch.

[0011] In some embodiments, the radiation guide patch includes a first radiation guide side piece and a second radiation guide side piece; the first radiation guide side piece is close to the first side edge of the feeding transceiver patch, and a second induction gap is formed between the first radiation guide side piece and the first radiation extension part; the second radiation guide side piece is close to the second side edge of the feeding transceiver patch, and another second induction gap is formed between the second radiation guide side piece and the second radiation extension part.

[0012] In some embodiments, the intersection of a side line of the feeding transceiver patch connected to the inductive straight line portion and a middle bisector of the first inductive gap is the center of the first circle.

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

[0014] In some embodiments, the feeding straight line portion and the induction straight line portion are arranged parallel to each other.

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

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

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] In the above wide-angle patch antenna structure, since a first induction gap is provided between the feeding radiation patch and the induction radiation patch, electromagnetic energy coupling is formed between the feeding radiation patch and the induction radiation patch through the first induction gap to generate communication radiation. Also, since the radiation extension part of the feeding radiation patch and the radiation extension part of the induction radiation patch extend in opposite directions and are respectively bent in an arc shape toward one side of the feeding transceiver patch, and the bending directions of the two radiation extension parts are opposite, the communication radiation can be dispersed under the guidance of each radiation extension part, so that the gain distribution of the above wide-angle patch antenna structure is more uniform, and the detection range of the car can be improved, so that the car can better adapt to the changing driving conditions around the car body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

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

[0021] Figure 2 for Figure 1 A plan view of the wide-angle patch antenna structure shown;

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

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

[0024] Figure 5 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 FIG. 4 is a schematic structural diagram of an in-vehicle communication device according to another embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 10. Vehicle 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. Feed transceiver patch;

[0030] 120, feeding radiation patch; 1210, feeding straight line portion; 1220, first radiation extension portion; 1201, first induction gap; 1202, first circle; 1203, second circle; 1204, third circle;

[0031] 130, induction radiation patch; 1310, induction straight line portion; 1320, second radiation extension portion;

[0032] 1410, first radiation guide side piece; 1420, second radiation guide side piece; 1401, second induction gap; 1430, first radiation guide outer side piece; 1440, second radiation guide outer side piece; 1402, third induction gap; 1403, fourth induction gap;

[0033] 150, calibration disk; 1510, center calibration point; 1501, first calibration arc; 1502, second calibration arc; 1503, third calibration arc. 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] 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:

[0038] See also Figure 1 The wide-angle patch antenna structure 100 of an embodiment includes a feed transceiver patch 110, a feed radiation patch 120 and an induction radiation patch 130; the feed transceiver patch 110 and the feed radiation patch 120 are arranged at intervals; the feed transceiver patch 110 is used to be electrically connected to the ground wire; the feed radiation patch 120 is used to be electrically connected to the feed network; the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 are all used to be installed on the same side of the glass substrate 200; the induction radiation patch 130 is connected to the feed transceiver patch 110, The feeding radiation patch 120 is separated from the feeding transceiver patch 110; a first induction gap 1201 is provided between the feeding radiation patch 120 and the induction radiation patch 130, and the first induction gap 1201 is used to generate communication radiation through electromagnetic energy coupling; a portion of the feeding radiation patch 120 and a portion of the induction radiation patch 130 extend in opposite directions and respectively form radiation extension portions; each radiation extension portion is respectively curved in an arc shape toward one side of the feeding 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 can be understood that, since a first induction gap 1201 is provided between the feed radiation patch 120 and the induction radiation patch 130, electromagnetic energy coupling is formed between the feed radiation patch 120 and the induction radiation patch 130 through the first induction gap 1201 to generate communication radiation. Also, since the radiation extension portion of the feed radiation patch 120 and the radiation extension portion of the induction radiation patch 130 extend in opposite directions, and are respectively curved toward one side of the feed transceiver patch 110 in an arc shape, and the bending directions of the two radiation extension portions are opposite, the communication radiation can be dispersed under the guidance of each radiation extension portion, so that the gain distribution of the wide-angle patch antenna structure 100 is more uniform, and the detection range of the car can be improved, so that the car can better adapt to the changing driving conditions around the car body.

[0040] In some embodiments, the feed transceiver patch 110 is a ground patch. When the ground patch is transmitting and receiving signals, the ground signal is used as a reference signal. The transmission signal loaded on the ground patch is a harmonic signal, which is convenient for stable transmission of the transmission signal. The ground signal is a standard AC signal, for example, the ground signal is a sine / cosine signal or a square wave / sawtooth AC signal, which is of course not limited here, and those skilled in the art can also make other choices as needed.

[0041] See also Figure 2In some embodiments, the feeding radiation patch 120 includes a feeding straight portion 1210 and a first radiation extension portion 1220 connected to each other, and the induction radiation patch 130 includes an induction straight portion 1310 and a second radiation extension portion 1320 connected to each other; the feeding straight portion 1210 is used to be electrically connected to the feeding network, and the induction straight portion 1310 is connected to the feeding transceiver patch 110; a first induction gap 1201 is formed between the feeding straight portion 1210 and the induction straight portion 1310; the first radiation extension portion 1220 and the second radiation extension portion 1320 are extended in opposite directions, the first radiation extension portion 1220 is bent close to the first side of the feeding transceiver patch 110, and the second radiation extension portion 1320 is bent close to the second side of the feeding transceiver patch 110, and the first side and the second side are opposite to each other. It can be understood that, since a first inductive gap 1201 is formed between the feed straight portion 1210 and the inductive straight portion 1310, when the feed straight portion 1210 is electrically connected to the feed network, electromagnetic energy coupling is formed between the feed straight portion 1210 and the inductive straight portion 1310 through the first inductive gap 1201, so as to generate stable communication radiation. In addition, since the first radiation extension portion 1220 and the second radiation extension portion 1320 are arranged to extend in opposite directions, by bending the first radiation extension portion 1220 to approach the first side of the feed transceiver patch 110, the communication radiation can be guided to the first side of the feed transceiver patch 110; by bending the second radiation extension portion 1320 to approach the second side of the feed transceiver patch 110, the communication radiation can be guided to the second side of the feed transceiver patch 110, so that the gain of the wide-angle patch antenna structure 100 can be dispersed to the opposite sides of the feed transceiver patch 110, thereby further improving the detection range of the car.

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

[0043] In some embodiments, the wide-angle patch antenna structure 100 further includes a radiation guide patch; the radiation guide patch is arranged on the outer periphery of the first circle 1202 and is arranged close to the side of the feed transceiver patch 110; and a second inductive gap 1401 is formed between at least one of the first radiation extension part 1220 and the second radiation extension part 1320 and the radiation guide patch. It can be understood that since the radiation guide patch is arranged on the outer periphery of the first circle 1202, and the second inductive gap 1401 is formed between at least one of the first radiation extension part 1220 and the second radiation extension part 1320 and the radiation guide patch, electromagnetic energy coupling is formed through the second inductive gap 1401, so that new communication radiation can be generated on the radiation guide patch. In addition, since the radiation guide patch is arranged close to the side of the feed transceiver patch 110, the gain of the wide-angle patch antenna structure 100 in the lateral direction can be additionally compensated, so as to further accelerate the reduction of the difference between the gain of the wide-angle patch antenna structure 100 in the lateral direction and the gain in the middle position.

[0044] See also Figure 2 In some embodiments, the radiation guide patch includes a first radiation guide side piece 1410 and a second radiation guide side piece 1420; the first radiation guide side piece 1410 is close to the first side of the feeding transceiver patch 110, and a second induction gap 1401 is formed between the first radiation guide side piece 1410 and the first radiation extension part 1220; the second radiation guide side piece 1420 is close to the second side of the feeding transceiver patch 110, and another second induction gap 1401 is formed between the second radiation guide side piece 1420 and the second radiation extension part 1320. It can be understood that the first radiation guide side piece 1410 is arranged close to the first side of the feeding transceiver patch 110 and forms a second induction gap 1401 with the first radiation extension part 1220, and electromagnetic energy coupling can be formed through the second induction gap 1401, so that the first side of the feeding transceiver patch 110 generates new communication radiation. Similarly, the second radiation guiding side plate 1420 is arranged close to the second side of the feeding transceiver patch 110 and forms another second induction gap 1401 with the second radiation extension part 1320. Electromagnetic energy coupling can be formed through the second induction gap 1401, so that the first side of the feeding transceiver patch 110 generates new communication radiation, so that the gain of the above-mentioned wide-angle patch antenna structure 100 at the first side of the feeding transceiver patch 110 and the second side of the feeding transceiver patch 110 tends to be consistent, thereby making the detection range of the car more evenly dispersed.

[0045] See also Figure 2 and Figure 3In some embodiments, the first radiation guide side piece 1410 and the second radiation guide side piece 1420 are both arc-shaped and symmetrically arranged on the arc of the second circle 1203; the radiation guide patch also includes a first radiation guide outer piece 1430 and a second radiation guide outer piece 1440, and the first radiation guide outer piece 1430 and the second radiation guide outer piece 1440 are respectively arranged on the outer periphery of the second circle 1203; the first radiation guide outer piece 1430 is close to the first side of the feed transceiver patch 110, and the first radiation guide outer piece 1430 and the first radiation guide side piece 1410 forms a third induction gap 1402; the second radiation 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 radiation guide outer plate 1440 and the second radiation guide side plate 1420; the third induction gap 1402 is equal to the fourth induction gap 1403; the first radiation guide outer plate 1430 and the second radiation 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 arranged concentrically. It can be understood that the first radiation guide outer plate 1430 is close to the first side of the feed transceiver patch 110 and forms the third induction gap 1402 with the first radiation guide outer plate 1430, and electromagnetic energy coupling can be formed through the third induction gap 1402, so that the first side of the feed transceiver patch 110 increases the communication radiation again. Similarly, the second radiation guide outer plate 1440 is close to the second side of the feed transceiver patch 110 and forms a fourth induction gap 1403 with the second radiation guide outer plate 1440, and electromagnetic energy coupling can be formed through the fourth induction gap 1403, so that the second side of the feed transceiver patch 110 increases the communication radiation again. In this way, the gain of the wide-angle patch antenna structure 100 distributed on the first side of the feed transceiver patch 110 and the second side of the feed transceiver patch 110 can be further enhanced, and finally effectively expand the lateral detection range of the car.

[0046] See also 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 of the above embodiment shows the following advantages:

[0047] 1) The gain dispersion angle of the wide-angle patch antenna structure 100 of the above embodiment is close to 180°, so that the car can be detected within a range of nearly 180° to reduce the occurrence of traffic accidents;

[0048] 2) The wide-angle patch antenna structure 100 of the above embodiment has a relatively large gain within a range of 180°, and the gain at each angle within the range of 180° is close, so that the performance of the car's signal reception and transmission within the range of 180° is good and balanced, so that the car can maintain sensitive communication within the range of 180° and make timely obstacle avoidance response;

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

[0050] Typically, since the first radiation guide side piece 1410, the second radiation guide side piece 1420, the first radiation guide outer piece 1430, the second radiation guide outer piece 1440 and the feed radiation patch 120 are all separated from the feed transceiver patch 110, the positions of the first radiation guide side piece 1410, the second radiation guide side piece 1420, the first radiation guide outer piece 1430, the second radiation guide outer piece 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 also read Figure 2 and Figure 4To solve the above problems, in some embodiments, the wide-angle patch antenna structure 100 further includes a calibration disk 150, on which are provided a central calibration point 1510, a first calibration arc 1501, a second calibration arc 1502 and a third calibration arc 1503, wherein the central calibration point 1510 is arranged at the arc center of the calibration disk 150; the circle where the first calibration arc 1501 is located, the circle where the second calibration arc 1502 is located and the circle where the third calibration arc 1503 is located are all centered on the central calibration point 1510 and are arranged in sequence from the inside to the outside; the spacing between the first calibration arc 1501 and the second calibration arc 1502 is equal to the second sensing gap 1401; the spacing between the second calibration arc 1502 and the third calibration arc 1503 is equal to the third sensing gap 1401. Gap 1402; the first radiation guide side piece 1410, the second radiation guide side piece 1420, the first radiation guide outer piece 1430, the second radiation guide outer piece 1440, the feed radiation patch 120, the induction radiation patch 130 and the feed transceiver patch 110 are all arranged on the same side of the calibration disk 150, the first radiation extension part 1220 and the second radiation extension part 1320 are respectively attached to the two side edges of the first calibration arc 1501, the first radiation guide side piece 1410 and the second radiation guide side piece 1420 are respectively attached to the two side edges of the second calibration arc 1502, and the first radiation guide outer piece 1430 and the second radiation guide outer piece 1440 are respectively attached to the two side edges of the third calibration arc 1503. It can be understood that since the first radiation extension part 1220 and the second radiation extension part 1320 are respectively attached to the two side edges of the first calibration arc 1501, the first radiation guide side plate 1410 and the second radiation guide side plate 1420 are respectively attached to the two side edges of the second calibration arc 1502, and the first radiation guide outer plate 1430 and the second radiation guide outer plate 1440 are respectively attached to the two side edges of the third calibration arc 1503, the first radiation guide side plate 1410, the second radiation guide side plate 1420, the first radiation guide outer plate 1430, the second radiation guide outer plate 1440, the feed radiation patch 120 and the other side of the feed transceiver patch 110 can be quickly and accurately adhered to the glass with the adhesive layer 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 the electromagnetic wave and is light-transmissive.

[0052] See also Figure 2In some embodiments, the intersection of one side edge of the feeding transceiver patch 110 connected to the inductive straight line portion 1310 and the middle bisector of the first inductive 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 feeding transceiver patch 110 and the middle bisector of the first inductive gap 1201 is the center O of the first circle 1202, the first radiation extension portion 1220 and the second radiation extension portion 1320 are distributed around one side edge of the feeding transceiver patch 110, so that the distances between each point on the first radiation extension portion 1220, each point on the second radiation extension portion 1320 and the middle bisector of the first inductive gap 1201 are synchronously and slowly increased, so that the communication radiation generated between the first inductive gap 1201 can be smoothly guided to the two sides of the feeding transceiver patch 110, and thus the gain of the above wide-angle patch antenna structure 100 can be more stably dispersed.

[0053] See also Figure 2 In some embodiments, the first radiation extension portion 1220 and the second radiation extension portion 1320 are symmetrically arranged. It can be understood that since the first radiation extension portion 1220 and the second radiation extension portion 1320 are symmetrically arranged, the guiding effect of the first radiation extension portion 1220 on the communication radiation and the guiding effect of the second radiation extension portion 1320 on the communication radiation can be symmetrical, and further the communication radiation is distributed more evenly on both sides of the feeding transceiver patch 110.

[0054] See also Figure 2 In some embodiments, the feeding straight line portion 1210 and the sensing straight line portion 1310 are arranged parallel to each other. It can be understood that since the feeding straight line portion 1210 and the sensing straight line portion 1310 are arranged parallel to each other, the width of the first sensing gap 1201 is kept stable, so that the communication radiation generated by the first sensing gap 1201 can be more evenly distributed between the feeding straight line portion 1210 and the sensing straight line portion 1310, and then the communication radiation can be evenly dispersed through the first radiation extension portion 1220 and the second radiation extension portion 1320.

[0055] Usually, during driving, emergencies are more likely to occur in front or behind the car, so people often set the above-mentioned wide-angle patch antenna structure 100 on the front windshield or rear windshield of the car to receive signals. However, since the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 are mainly copper foil, the surface of the copper foil has color, when the wide-angle patch antenna structure 100 is set on the front windshield or rear windshield of the car, the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 are easy to block the driver's field of view.

[0056] See also Figure 5 To solve the above problems, in some embodiments, a plurality of light-transmitting holes 101 are spaced apart on the feeding transceiver patch 110, the feeding radiation patch 120 and the sensing radiation patch 130. Specifically, the aperture of each light-transmitting hole 101 is 5 μm; the spacing between each light-transmitting hole 101 and other light-transmitting holes 101 around it is 10 μm. It can be understood that since the aperture of each light-transmitting hole 101 opened on the feeding transceiver patch 110, the feeding radiation patch 120 and the sensing radiation patch 130 is 5μm, and the spacing between each light-transmitting hole 101 and other light-transmitting holes 101 around it is 10μm, not only can the light-transmitting hole 101 play a light-transmitting role, but also can ensure the structural strength of the feeding transceiver patch 110, the feeding radiation patch 120 and the sensing radiation patch 130, and finally make the feeding transceiver patch 110, the feeding radiation patch 120 and the sensing radiation patch 130 be laid on the front windshield or rear windshield of the car to achieve light transmission, so as to reduce the obstruction of the driver's field of view.

[0057] Typically, the wide-angle patch antenna structure 100 is usually glued to the front windshield or the rear windshield. Since a number of light-transmitting holes 101 are spaced apart on the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130, the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 are all very soft in texture, which is not only easy to deform and shift during the pasting process, but also easy to cause damage if the wide-angle patch antenna structure 100 needs to be torn off and pasted again.

[0058] See also Figure 5In order to solve the above problems, in some embodiments, each light-transmitting hole 101 is provided with a light-transmitting adhesive block 1011, and each light-transmitting adhesive block 1011 is bonded to the hole wall of the corresponding light-transmitting hole 101; a plurality of reserved apertures 1010 are formed between each light-transmitting adhesive block 1011 and the hole wall of the corresponding light-transmitting hole 101, and the plurality of reserved apertures 1010 are arranged at intervals around the light-transmitting adhesive block 1011. It can be understood that since each light-transmitting hole 101 is provided with a light-transmitting adhesive block 1011, by bonding each light-transmitting adhesive block 1011 to the hole wall of the corresponding light-transmitting hole 101, the structure of the feeding transceiver patch 110, the feeding radiation patch 120 and the sensing radiation patch 130 can be reinforced, and the light-transmitting adhesive block 1011 is used to achieve gradual bonding to reduce the deformation and displacement of the wide-angle patch antenna structure 100, and it is less likely to be damaged when the wide-angle patch antenna structure 100 is torn off. Since a number of reserved pores 1010 are formed between each light-transmitting adhesive block 1011 and the hole wall of the corresponding light-transmitting hole 101, during pasting, not only can air be permeable through the reserved pores 1010 so that the wide-angle patch antenna structure 100 can be smoothly pasted. At the same time, after the wide-angle patch antenna structure 100 is accurately pasted, due to the size difference of the light-transmitting adhesive block 1011, the wide-angle patch antenna structure 100 will be uneven as a whole. By squeezing the light-transmitting adhesive block 1011, the light-transmitting adhesive block 1011 can be flattened to fill the corresponding reserved pores 1010, which can reduce the unevenness of the wide-angle patch antenna structure 100, and further make the light-transmitting adhesive block 1011 adhere to the hole wall of the reserved pore 1010, and finally strengthen the wide-angle patch antenna structure 100.

[0059] In some embodiments, the light-transmitting adhesive block 1011 is a UV gel block. It can be understood that the wide-angle patch antenna structure 100 can be pasted in an environment without ultraviolet light, so that after the wide-angle patch antenna structure 100 is attached to the windshield, the positions of the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 can still be adjusted at will, which is not only less likely to cause damage to the wide-angle patch antenna structure 100, but also can be securely fixed to the windshield by ultraviolet light after position calibration. Of course, in other embodiments, the light-transmitting adhesive block 1011 can be an optically transparent adhesive, such as fir resin glue, Canadian balsam, etc.

[0060] The present disclosure also provides a vehicle-mounted antenna, including the wide-angle patch antenna structure 100 of any of the above-mentioned embodiments. It can be understood that by applying the wide-angle patch antenna structure 100 of the present disclosure to the vehicle-mounted antenna, since the radiation extension part of the feed radiation patch 120 and the radiation extension part of the induction radiation patch 130 extend in opposite directions and are respectively curved in an arc shape toward one side of the feed transceiver patch 110, the communication radiation can be dispersed under the guidance of each radiation extension part, so that the gain distribution of the above-mentioned wide-angle patch antenna structure 100 is more uniform, and the detection range of the car can be improved, so that the car can better adapt to the changing driving conditions around the car body.

[0061] Please also read Figure 1 and Figure 6 The present disclosure also provides a vehicle-mounted communication device 10, comprising 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 radiation patch 120 and the induction radiation patch 130 are all installed on the same side of the glass substrate 200. It can be understood that by applying the wide-angle patch antenna structure 100 of the present disclosure to the vehicle-mounted communication device 10, the feed transceiver patch 110, the feed radiation patch 120 and the induction radiation patch 130 are all installed on the same side of the glass substrate 200. Since the radiation extension part of the feed radiation patch 120 and the radiation extension part of the induction radiation patch 130 extend in opposite directions and are respectively curved and approached to 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 part, so that the gain distribution of the above wide-angle patch antenna structure 100 is more uniform, and the detection range of the car can be improved, so that the car can better adapt to the changing driving conditions around the car body.

[0062] See also Figure 6 In some embodiments, the number of glass substrates 200 includes at least two, and each glass substrate 200 is 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 respectively glued to a 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 making each side of the wide-angle patch antenna structure 100 be glued to a glass substrate 200, not only can the wide-angle patch antenna structure 100 be able to smoothly spread out the received signal under the clamping of the two glass substrates 200, but also the wide-angle patch antenna structure 100 can be closely connected to each glass substrate 200 to avoid slippage.

[0063] Please combine Figure 1As shown, the present disclosure also provides a vehicle, including a vehicle body and at least two vehicle-mounted communication devices 10 of any of the above embodiments, each of which is installed at the front and rear ends of the vehicle body in the driving direction. It can be understood that by applying the vehicle-mounted communication device 10 of the present disclosure in the vehicle, each of which is installed at the front and rear ends of the vehicle body in the driving direction, the wide-angle patch antenna structure 100 in the vehicle-mounted communication device 10 installed at the front end of the vehicle body in the driving direction can receive the front and side signals, and the wide-angle patch antenna structure 100 in the vehicle-mounted communication device 10 installed at the rear end of the vehicle body in the driving direction can receive the rear and side signals, so as to achieve the effect of signal reception in the 360° direction around the vehicle. In some embodiments, the above two vehicle-mounted communication devices 10 are the front windshield and rear windshield of the vehicle. In other embodiments, the above two vehicle-mounted communication devices 10 are the sunroof glass of the vehicle, and the two sunroof glasses are respectively arranged at the front and rear ends of the vehicle.

[0064] Compared with the prior art, the present invention has at least the following advantages:

[0065] In the above wide-angle patch antenna structure 100, since a first induction gap 1201 is provided between the feed radiation patch 120 and the induction radiation patch 130, electromagnetic energy coupling is formed between the feed radiation patch 120 and the induction radiation patch 130 through the first induction gap 1201 to generate communication radiation. In addition, since the radiation extension part of the feed radiation patch 120 and the radiation extension part of the induction radiation patch 130 extend in opposite directions and are respectively bent in an arc shape toward one side of the feed transceiver patch 110, and the bending directions of the two radiation extension parts are opposite, the communication radiation can be dispersed under the guidance of each radiation extension part, so that the gain distribution of the above wide-angle patch antenna structure 100 is more uniform, and the detection range of the car can be improved, so that the car can better adapt to the changing driving conditions around the car body.

[0066] 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. A wide-angle patch antenna structure, comprising a feed transceiver patch and a feed radiation patch, wherein the feed transceiver patch and the feed radiation patch are arranged at intervals; the feed transceiver patch is used to be electrically connected to a ground wire; the feed radiation patch is used to be electrically connected to a feed network; It is characterized in that The wide-angle patch antenna structure also includes an inductive radiation patch; The feeding transceiver patch, the feeding radiation patch and the induction radiation patch are all used to be installed on the same side of the glass substrate; the induction radiation patch is connected to the feeding transceiver patch, and the feeding radiation patch is kept separated from the feeding transceiver patch; a first induction gap is arranged between the feeding radiation patch and the induction radiation patch, and the first induction gap is used to generate communication radiation through electromagnetic energy coupling; a part of the feeding radiation patch and a part of the induction radiation patch extend in opposite directions and respectively form radiation extension parts; each of the radiation extension parts is respectively bent in an arc shape toward one side of the feeding transceiver patch, and the bending directions of the two radiation extension parts 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 feeding radiation patch includes a feeding straight line portion and a first radiation extension portion connected to each other, and the induction radiation patch includes an induction straight line portion and a second radiation extension portion connected to each other; the feeding straight line portion is electrically connected to the feeding network, and the induction straight line portion is connected to the feeding transceiver patch; The first induction gap is formed between the feeding straight line portion and the induction straight line portion; The first radiation extension portion and the second radiation extension portion are extended in opposite directions, the first radiation extension portion is bent toward the first side of the feeding transceiver patch, and the second radiation extension portion is bent toward the second side of the feeding transceiver patch, and 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 radiation extension portion and the second radiation extension portion are located on an arc of a first circle.

4. The wide-angle patch antenna structure according to claim 3, characterized in that: The wide-angle patch antenna structure also includes a radiation guide patch; the radiation guide patch is arranged on the outer circumference of the first circle and close to the side of the feeding transceiver patch; a second induction gap is formed between at least one of the first radiation extension part and the second radiation extension part and the radiation guide patch.

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

6. The wide-angle patch antenna structure according to claim 3, characterized in that: The intersection of a side line of the feeding transceiver patch connected to the inductive straight line portion and a middle bisector of the first inductive 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 feeding straight line portion and the induction straight line portion are arranged parallel to each other.

9. A vehicle-mounted antenna, characterized in that: The invention comprises the wide-angle patch antenna structure as claimed in any one of claims 1 to 8.

10. A vehicle-mounted communication device, characterized in that: It comprises a glass substrate and the wide-angle patch antenna structure described in any one of claims 1 to 8; the feed transceiver patch, the feed radiation patch and the induction radiation patch are all installed on the same side of the glass substrate.

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