Antenna and electronic equipment

Abstract

The invention discloses an antenna and electronic equipment, and relates to the technical field of antennas. The antenna comprises a first substrate and a second substrate which are arranged in a laminated mode. The first substrate comprises a radiation assembly, and a first feeder line and a second feeder line which are electrically connected with the radiation assembly; the second substrate comprises a second dielectric substrate which is provided with a third surface and a fourth surface; a second reference electrode layer provided on the third surface side; the first feed structure and the second feed structure are both arranged on the fourth surface side, a second feed port of the first feed structure is electrically connected with the first feed line, and a fourth feed port of the second feed structure is electrically connected with the second feed line; the first connecting via hole and the second connecting via hole penetrate through the second dielectric substrate and the second reference electrode layer, the first connecting via hole is communicated with the first feed port, and the second connecting via hole is communicated with the third feed port. Through the scheme of the invention, wiring intersection of the first feed structure and the second feed structure is avoided, and welding of the radio frequency line is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to an antenna and electronic equipment. Background Art

[0002] With the continuous development of mobile communication technology, antennas have become an indispensable part of mobile communication devices, and people have put forward higher and higher requirements for antenna design. Dual-polarized antennas are increasingly used in mobile communication devices because they can send wireless signals in two directions at the same time, saving the number of antennas in directional base stations. However, in the application process of dual-polarized antennas, there are also some problems that need to be solved urgently, such as poor isolation between the two polarizations of dual-polarized antennas, and the two polarized power splitter routing is prone to cross interference in order to facilitate welding of RF lines. At the same time, in order to make the antenna better integrated into the environment, realize the beautification of mobile communication equipment, and improve the concealment of the antenna in mobile communication equipment, the transparency of the antenna also needs to be improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes an antenna and an electronic device.

[0004] An aspect of an embodiment of the present disclosure provides an antenna, specifically comprising: a first substrate and a second substrate stacked in layers; wherein:

[0005] The first substrate comprises:

[0006] At least one radiation component, at least one first feeder and at least one second feeder, wherein one radiation component is electrically connected to one first feeder and one second feeder, and the first feeder and the second feeder have different feeding directions;

[0007] The second substrate comprises:

[0008] The second dielectric substrate has a third surface and a fourth surface arranged opposite to each other along the thickness direction thereof;

[0009] A second reference electrode layer is arranged on the third surface side;

[0010] The first feeding structure and the second feeding structure are both arranged on the fourth surface side, and the first feeding structure includes one of the first feeding ports and at least one of the second feeding ports; the second feeding structures each include one of the third feeding ports and at least one of the fourth feeding ports; and one of the second feeding ports is electrically connected to one of the first feed lines, and one of the fourth feeding ports is electrically connected to one of the second feed lines;

[0011] The first connecting via and the second connecting via both penetrate the second dielectric substrate and the second reference electrode layer, and the first connecting via at least partially overlaps with the orthographic projection of the first feeding port on the plane where the third surface is located, and the second connecting via at least partially overlaps with the orthographic projection of the third feeding port on the plane where the third surface is located.

[0012] In some embodiments, the antenna further comprises: a first radio frequency line and a second radio frequency line;

[0013] The core of the first RF line is electrically connected to the first feeding port through the first connecting via; the core of the second RF line is electrically connected to the third feeding port through the second connecting via; the reference electrode layer of the first RF line and the reference electrode layer of the second RF line are both connected to the second reference electrode layer.

[0014] In some embodiments, both the first radio frequency line and the second radio frequency line are led out from the plane where the third surface is located.

[0015] In some embodiments, both the first radio frequency line and the second radio frequency line are led out from the side of the fourth surface facing away from the third surface.

[0016] In some embodiments, the first substrate further comprises:

[0017] A first dielectric substrate having a first surface and a second surface disposed opposite to each other along a thickness direction thereof;

[0018] A first reference electrode layer, disposed on the first surface side;

[0019] The at least one radiation component, the at least one first feed line and the at least one second feed line are all arranged on the second surface side.

[0020] In some embodiments, the third surface is closer to the first surface than the fourth surface, and the first reference electrode layer is electrically connected to the second reference electrode layer.

[0021] In some implementations, the first feeding port and the third feeding port have no overlap with the orthographic projection of the first dielectric substrate on the plane where the third surface is located.

[0022] In some embodiments, the orthographic projection of the first dielectric substrate on the plane where the third surface is located covers the orthographic projection of the second dielectric substrate on the plane where the third surface is located.

[0023] In some embodiments, at least some of the adjacent radiation components are spaced apart from each other at different intervals.

[0024] In some embodiments, the antenna further includes at least one first parasitic radiation element, and the first parasitic radiation element is disposed on a side of the radiation element facing away from the third surface and has a certain distance from the radiation element.

[0025] In some embodiments, the antenna further includes a second parasitic radiating component disposed on the same layer as the first parasitic radiating component and located on the opposite side of the radiating component to which the first feeder is connected.

[0026] In some embodiments, the first parasitic radiation component has a main structure and a protruding structure connected to an outer contour of the main structure.

[0027] In some embodiments, the radiation component includes a plurality of first edges arranged sequentially, and a connecting edge connected between adjacent first edges, and an angle formed by the connecting edge and the first edge is an obtuse angle.

[0028] In some embodiments, at least one of the at least one radiating element, the at least one first feed line, and the at least one second feed line is a metal mesh structure.

[0029] In some embodiments, the second substrate is a printed circuit board.

[0030] In some embodiments, the antenna further includes a radome, and the first substrate and the second substrate are fixed in a containing space of the radome.

[0031] Another aspect of the embodiments of the present disclosure provides an electronic device, comprising any antenna as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the structure of an antenna provided in an embodiment of the present disclosure;

[0034] Figure 2 A schematic diagram of the structure of a second substrate provided in an embodiment of the present disclosure;

[0035] Figure 3 for Figure 2 A schematic side view of a second substrate;

[0036] Figure 4A schematic structural diagram of a first substrate provided in an embodiment of the present disclosure;

[0037] Figure 5 for Figure 4 A schematic side view of a second substrate;

[0038] Figure 6 for Figure 4 A schematic bottom view of a second substrate;

[0039] Figure 7 A schematic diagram of the structure of a radiation component and a first feeder and a second feeder connected thereto provided in an embodiment of the present disclosure;

[0040] Figure 8 A schematic diagram of a structure in which a radio frequency line provided in an embodiment of the present disclosure is led out from one side of a second substrate;

[0041] Fig. 9 A schematic diagram of a structure in which a radio frequency line provided in an embodiment of the present disclosure is led out from the other side of the second substrate;

[0042] Fig.10 A schematic diagram of the structure of a parasitic radiation component provided in an embodiment of the present disclosure;

[0043] Fig.11 A schematic diagram of the structure of an antenna provided in an embodiment of the present disclosure.

[0044] Fig.12 for Figure 1 The standing wave ratio diagram of the antenna shown at an operating frequency of 3.3-3.7 GHz;

[0045] Fig.13 for Figure 1 The isolation diagram of the antenna shown is at an operating frequency of 3.3-3.7 GHz;

[0046] Fig.14a and Fig.14b for Figure 1 The directional pattern of the antenna shown at the center frequency;

[0047] Fig.15 for Figure 1 The gain plot of the antenna shown varies with frequency;

[0048] Fig.16 for Figure 1 The antenna shown is a diagram of isolation of different polarization ports when the antenna does not include a second parasitic radiation component and includes the second parasitic radiation component;

[0049] Fig.17 for Figure 1 The cross-polarization ratio diagram of the antenna is shown. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the embodiments of the present disclosure are further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various alternative forms. The drawings are not necessarily drawn to scale; certain functions may be exaggerated or minimized to show the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be interpreted as restrictive, but merely as a representative basis for teaching those skilled in the art to use the present application in various ways. As will be understood by those of ordinary skill in the art, the various features shown and described with reference to any one of the drawings may be combined with the features shown in one or more other drawings to produce embodiments that are not explicitly shown or described. The combination of the features shown provides representative embodiments for typical applications. However, various combinations and modifications of features consistent with the teachings of the present disclosure may be desirable for certain specific applications or implementations.

[0051] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. "Including" or "including" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The term "and / or" when used to list two or more items means that any one of the listed items can be adopted by itself, or any combination of two or more of the listed items can be adopted.

[0052] In a first aspect of the embodiments of the present disclosure, an antenna is provided, which includes a first substrate and a second substrate. A radiation component is disposed on the first substrate, and a feeding structure for feeding the radiation component is disposed on the second substrate.

[0053] Specifically, Figure 1 A schematic diagram of the structure of an antenna provided in an embodiment of the present disclosure; Figure 2 A schematic diagram of the structure of a second substrate provided in an embodiment of the present disclosure; Figure 3 for Figure 2 A schematic side view of a second substrate; Figure 4A schematic structural diagram of a first substrate provided in an embodiment of the present disclosure; Figure 5 for Figure 4 A schematic side view of a second substrate; Figure 6 for Figure 4 A schematic bottom view of a second substrate;

[0054] Figure 7 The structure diagram of the radiation component and the first feeder and the second feeder connected thereto provided by the embodiment of the present disclosure. Figure 1-7 As shown, the antenna includes: a first substrate 10 and a second substrate 20 which are stacked. The first substrate 10 includes: at least one radiation component 11, at least one first feed line 12 and at least one second feed line 13, and one radiation component 11 is electrically connected to one first feed line 12 and one second feed line 13, and the feeding directions of the first feed line 12 and the second feed line 13 are different. The second substrate 20 includes: a second dielectric substrate 21, a second reference electrode layer 22, a first feeding structure 23, a second feeding structure 24, a first connecting via 25 and a second connecting via 26. The second dielectric substrate 21 has a third surface 211 and a fourth surface 212 arranged opposite to each other along the thickness direction thereof, the second reference electrode layer 22 is arranged on the third surface side, the first feeding structure 23 and the second feeding structure 24 are both arranged on the fourth surface side, the first feeding structure 23 includes a first feeding port 231 and at least one second feeding port 232, the second feeding structure 24 includes a third feeding port 241 and at least one fourth feeding port 242, one second feeding port 232 is electrically connected to a first feed line 12, and one fourth feeding port 242 is electrically connected to a second feed line 13, the first connecting via 25 and the second connecting via 26 both penetrate the second dielectric substrate 21 and the second reference electrode layer 22, and the orthographic projection of the first connecting via 25 and the first feeding port 231 on the plane where the third surface 211 is located at least partially overlaps, and the orthographic projection of the second connecting via 26 and the third feeding port 241 on the plane where the third surface 211 is located at least partially overlaps. During the operation of the antenna, microwave signals are fed respectively through the first feeding port of the first feeding structure and the third feeding port of the second feeding structure, and the microwave signal fed through the first feeding port is transmitted through the second feeding port to the first feed line connected to the second feeding port, and the microwave signal fed through the third feeding port is transmitted through the fourth feeding port to the second feed line connected to the fourth feeding port.

[0055] It should be noted that since the feeding directions of the first feed line and the second feed line connecting the same radiating component are different, the antenna provided in the embodiment of the present disclosure is a dual-polarized antenna. In the embodiment of the present disclosure, according to the feeding direction shown in the figure, only the antenna is used to achieve ±45° polarization as an example.

[0056] In the embodiment of the present disclosure, by providing a connecting via that passes through the second dielectric substrate 21 and the second reference electrode layer 22, and making the connecting via and its corresponding feeding port at least partially overlap in the plane where the third surface 211 is located, the crossing of the routing of the first feeding structure 23 and the second feeding structure 24 is avoided, the welding of the RF line is facilitated, and the difficulty of assembling the antenna is reduced.

[0057] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 The first substrate includes not only the above-mentioned radiation component 11, the first feed line 12 and the second feed line 13, but also a first dielectric substrate 14 and a first reference electrode layer 15. The first dielectric substrate 14 has a first surface 141 and a second surface 142 arranged opposite to each other along its thickness direction, the first reference electrode layer 15 is arranged on the first surface side, and at least one radiation component 11, at least one first feed line 12 and at least one second feed line 13 are all arranged on the second surface 142 side. Specifically, a radiation component 11 is electrically connected to a first feed line 12 and a second feed line 13 at the same time, and the feeding directions of the first feed line 12 and the second feed line 13 are different, thereby realizing a dual-polarized antenna. The radiation component and the first feed line and the second feed line can be bonded to the first dielectric substrate by optical adhesive, thereby improving the physical strength of the antenna.

[0058] It should be noted that, in the embodiment of the present disclosure, a radiation component 11 and a first feed line 12 and a second feed line 13 adjacent thereto form a vibrator.

[0059] In such Figure 1 In the example shown, the antenna includes four oscillators, and adjacent oscillators are arranged at unequal intervals to form a 1×4 array. Figure 1-Figure 3 , the first feeding structure 23 on the second substrate 20 includes: a first feeding port 231 and four second feeding ports 232. The second feeding structure 24 on the second substrate 20 includes: a third feeding port 241 and four fourth feeding ports 242. Among them, the first feeding port 231 is arranged in the middle position of the first feeding structure 23, and the spacing between each adjacent two second feeding ports in any three adjacent second feeding ports is unequal. The fourth feeding port 242 is arranged in the middle position of the second feeding structure 24, and the spacing between each adjacent two fourth feeding ports 242 in any three adjacent fourth feeding ports 242 is unequal. Thereby, it is ensured that in each feeding structure, the phase of the feeding port connected to the feeder is as consistent as possible, thereby improving the phase consistency of the antenna.

[0060] Continue to refer to Figure 1-Figure 3In the embodiment of the present disclosure, each second feeding port 232 of the first feeding structure 23 corresponds to a first feeding line 12 in a vibrator. Specifically, the first feeding structure 23 includes four second feeding ports 232 from left to right, and the first substrate includes four vibrators from left to right. Figure 1 The first second feeding port 232 of the first feeding structure 23 from the left is connected to a first feed line 12 of the first oscillator, the second second feeding port 232 is connected to a first feed line 12 of the second oscillator, the third second feeding port 232 is connected to a first feed line 12 of the third oscillator, and the fourth second feeding port 232 is connected to a first feed line 12 of the fourth oscillator. Figure 1 The first fourth feeding port 242 of the second feeding structure 24 from the left is connected to a second feed line 13 of the first oscillator, the second fourth feeding port 242 is connected to a second feed line 13 of the second oscillator, the third fourth feeding port 242 is connected to a second feed line 13 of the third oscillator, and the fourth fourth feeding port 242 is connected to a second feed line 13 of the fourth oscillator. In some examples, a second feeding port 232 of the first feeding structure 23 can be connected to a first feed line 12 in a oscillator through a third connecting via. A fourth feeding port 242 of the second feeding structure 24 can be connected to a second feed line 13 in the oscillator through a fourth connecting via.

[0061] In some examples, the material of the first dielectric substrate includes, but is not limited to, polycarbonate (PC), cycloolefin polymer (COP), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), and all transparent hard substrates including transparent low-loss glass. In the disclosed embodiment, the dielectric substrate made of transparent material improves the overall light transmittance of the antenna.

[0062] In some examples, continue to refer to Figure 7 , the radiation component 11 includes: a plurality of first edges 111 arranged in sequence, a connecting edge 112 connected between adjacent first edges 111, and the angle formed by the connecting edge 112 and the first edge 111 is an obtuse angle. For example: the radiation component can be obtained by cutting the angle of a square patch. Among them, the first feed line 12 can be electrically connected to any one of the plurality of connecting edges. In this case, the second feed line 13 is electrically connected to a connecting edge adjacent to the connecting edge electrically connected to the first feed line 11. In the case Figure 7In the illustrated embodiment, only the radiation component including four first edges is described as an example. In the embodiment of the present disclosure, the feeding direction of the first feeder is -45°, and the feeding direction of the second feeder is +45°. At this time, the embodiment of the present disclosure can achieve ±45° dual polarization. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In some examples, when the feeding direction of the first feeder is 0° and the feeding direction of the second feeder is 90°, the antenna can also achieve 0° and 90° dual polarization.

[0063] In some examples, the outer contour of the radiation component may also be circular, rectangular, or other shapes, which are not limited here.

[0064] In some examples, the antenna of the disclosed embodiment is a transparent antenna. In order to improve the transmittance of the transparent antenna, the radiation component 11, the first feed line 12, and the second feed line 13 can all be metal grid structures. Specifically, the metal grid structure can be formed by processes such as metal grid stamping or etching. The thickness of the radiation component can be 50-250 microns, the line width of the metal grid can be 2-30 microns, the line spacing can be 50-200 microns, and the thickness is 1-10 microns. Thus, a radiation component and a feed line with a transmittance of 70%-88% can be obtained, thereby improving the transmittance of the first substrate and the antenna.

[0065] In some examples, in order to further improve the light transmittance of the first substrate and the antenna, the first reference electrode layer may also be a metal grid structure.

[0066] In some examples, the second substrate is a printed circuit board.

[0067] In some examples, the third surface 211 of the second dielectric substrate 21 is closer to the first surface 141 of the first dielectric substrate 14 than the fourth surface 212, thereby facilitating the electrical connection between the first reference electrode layer 15 of the first substrate 10 and the second reference electrode layer 22 of the second substrate 20, without the need for additional components to assist in connecting the first reference electrode layer 15 of the first substrate 10 with the second reference electrode layer 22 of the second substrate 20.

[0068] Figure 8 A schematic diagram of a structure in which a radio frequency line is led out from one side of a second substrate according to an embodiment of the present disclosure. Figure 1 and Figure 8The antenna includes not only the above structure, but also includes: a first RF line 30 and a second RF line 40. The core of the first RF line 30 is electrically connected to the first feeding port 231 through the first connecting via 25; the core of the second RF line 40 is electrically connected to the third feeding port 241 through the second connecting via 26; the reference electrode layer of the first RF line 30 and the reference electrode layer of the second RF line 40 are both connected to the second reference electrode layer 22. During the operation of the antenna, a microwave signal can be fed into the first feeding port of the first feeding structure of the second substrate through the first RF line, and a microwave signal can be fed into the third feeding port of the second feeding structure of the second substrate through the second RF line.

[0069] In some examples, continue to refer to Figure 8 , the first feeding port 231 of the first feeding structure 23 and the third feeding port 241 of the second feeding structure 24 do not overlap with the orthographic projection of the first dielectric substrate 14 on the plane where the third surface 211 of the second dielectric substrate 21 is located, that is, although the first substrate and the second substrate are superimposed, they are staggered. In this case, the first RF line 30 and the second RF line 40 can both be led out from the plane where the third surface 211 is located. Therefore, the embodiment of the present disclosure not only avoids the crossing of the routing of the first feeding structure and the second feeding structure, but also facilitates the welding of the RF line, reduces the difficulty of assembling the antenna, and reduces the space occupied by the antenna in the direction of the overall height H.

[0070] Fig. 9 A schematic diagram of a structure in which a radio frequency line is led out from the other side of the second substrate according to an embodiment of the present disclosure. Fig. 9 , the first RF line 30 and the second RF line 40 are both led out from the side of the fourth surface 212 away from the third surface. The orthographic projection of the first dielectric substrate 14 on the plane where the third surface 211 of the second dielectric substrate 21 is located covers the orthographic projection of the second dielectric substrate 21 on the plane where the third surface 211 is located. At this time, the first RF line 30 and the second RF line 40 can both be led out from the side of the fourth surface 212 away from the third surface. That is to say, in this case, the first substrate and the second substrate completely overlap, reducing the size of the antenna. Therefore, the embodiment of the present disclosure not only avoids the crossing of the routing of the first feeding structure and the second feeding structure, but also reduces the difficulty of assembling the antenna and reduces the space occupied by the antenna in the direction of the overall width S.

[0071] Fig.10 A schematic diagram of the structure of a parasitic radiation component provided in an embodiment of the present disclosure. Figure 1 and Fig.10The antenna not only includes the above structure, but also includes at least one first parasitic radiation component 50. Among them, a first parasitic radiation component 50 is arranged on a side of a radiation component 11 away from the third surface 211 of the second dielectric substrate 21, and there is a certain distance between the first parasitic radiation component 50 and its corresponding radiation component 11. By arranging the first parasitic radiation component corresponding to the radiation component at a position with a certain distance from the radiation component, the polarization isolation of the antenna is improved.

[0072] In some examples, continue to refer to Fig.10 The first parasitic radiation component 50 has a main structure 51 and a protruding structure 52 connected to the outer contour of the main structure. The main structure includes a plurality of second edges connected in sequence. The shape of the protruding structure can be a semicircular shape, a polygonal shape, etc., which is not limited here. Fig.10 In the example shown, the main structure includes four second edges connected in sequence, the raised structure is located on one side and the opposite side of the radiation component connected to the first feeder and the second feeder, and the shape of the raised structure is rectangular. It should be understood that the examples described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0073] In some embodiments, continue to refer to Figure 1 and Fig.10 The antenna includes not only the above structure, but also a second parasitic radiating component 60 disposed on the same layer as the first parasitic radiating component 50. The second parasitic radiating component 60 is located on the opposite side of the radiating component 60 to which the first feeder and the second feeder are connected, thereby further improving the polarization isolation of the dual-polarized antenna. In some examples, the second parasitic radiating component is in the shape of a strip.

[0074] Fig.11 A schematic diagram of the structure of an antenna provided in an embodiment of the present disclosure. Fig.11 The antenna further includes a radome 100 , and the first substrate 10 and the second substrate 20 are fixed in a receiving space of the radome 100 .

[0075] In some examples, reference Fig.10 and Fig.11 The antenna cover 100 includes a cover plate 101 and a bottom plate 102 connected to the cover plate 101, the first parasitic radiation component 50 is fixed on the cover plate 101, the second substrate 20 is fixed on the first substrate 10, and the first substrate 10 is fixed on the bottom plate 102. Specifically, the first parasitic radiation component can be attached to the cover plate 101 of the antenna cover 100 by optical adhesive. At this time, no additional dielectric plate is required to support it, making the structure of the antenna simpler, reducing the number of transparent injection molded parts and the supporting structure, and reducing the processing cost.

[0076] The second substrate 20 can be fixed to the first substrate 10 by plastic rivets or screws, and the first substrate 10 can be fixed to the bottom plate 102 of the antenna cover 100 by transparent plastic screws. Of course, other methods can also be used to fix the first substrate and the second substrate to the bottom plate of the antenna cover, which is not limited here.

[0077] In some examples, the first connection via, the second connection via, the third connection via, and the fourth connection via in the embodiment of the present disclosure may all be conductive holes, which may be filled with conductive parts such as copper columns.

[0078] In order to make the performance of the embodiment of the present disclosure clearer, Figure 1 Take the antenna shown in FIG. 1 as an example and simulate the antenna.

[0079] Fig.12 for Figure 1 The antenna shown in the figure has a standing wave ratio of 3.3-3.7 GHz. Figure 6 As shown, it can be seen that the antenna has excellent broadband characteristics and can cover the 3.3-3.7GHz frequency band when the standing wave ratio is less than 1.3, ensuring that the antenna has a wide range of application scenarios.

[0080] Fig.13 for Figure 1 The isolation diagram of the antenna shown in the figure is at an operating frequency of 3.3-3.7 GHz. Figure 7 As shown, it can be seen that the antenna has an isolation characteristic greater than 26 within the operating frequency, which reduces the signal crosstalk between the RF ports and improves the communication quality.

[0081] Fig.14a and Fig.14b for Figure 1 The antenna shown has a directivity pattern at the center frequency. Fig.14a It can be seen that the antenna has a large angular characteristic in the vertical radiation plane and can effectively cover a wider area. Fig.14b It can be seen that the antenna has a narrow beam width in the horizontal radiation plane, which improves the accuracy in the radiation direction.

[0082] Fig.15 for Figure 1 The gain of the antenna shown here varies with frequency. Fig.15 It can be seen that the antenna can achieve a high gain characteristic greater than 12dBi, which greatly ensures the excellent signal receiving and sending capabilities of the antenna.

[0083] Fig.16 for Figure 1 The antenna shown does not include the second parasitic radiation component and includes the second parasitic radiation component when the polarization port isolation diagram. Fig.16As shown, when the antenna does not include the second parasitic radiation component, the isolation of the polarization ports is 22.75dB, and when the antenna includes the second parasitic radiation component, the isolation of the polarization ports is 26dB. It can be seen that the embodiment of the present disclosure improves the isolation of the polarization ports of the antenna from 22.75dB to 26dB by introducing the second parasitic radiation component.

[0084] Fig.17 for Figure 1 The cross-polarization ratio diagram of the antenna is shown. Fig.17 It can be seen that the antenna has excellent cross-polarization ratio characteristics. The axial (0° radiation direction) cross-polarization ratio is greater than 18dB, which ensures that the signals received by the dual polarizations are independent of each other.

[0085] Based on the same inventive concept, a second aspect of an embodiment of the present disclosure provides an electronic device, comprising any antenna as described above.

[0086] In some examples, the electronic device provided by the embodiments of the present disclosure also includes a transceiver unit, a radio frequency transceiver, a signal amplifier, a power amplifier, and a filtering unit. The log-periodic antenna in the electronic device can be used as a transmitting antenna or as a receiving antenna. Among them, the transceiver unit may include a baseband and a receiving end, and the baseband provides a signal of at least one frequency band, for example, 2G signals, 3G signals, 4G signals, 5G signals, etc., and sends a signal of at least one frequency band to the radio frequency transceiver. After the log-periodic antenna in the antenna system receives the signal, it can be processed by the filtering unit, the power amplifier, the signal amplifier, and the radio frequency transceiver and then transmitted to the receiving end in the first launch unit. The receiving end may be, for example, a smart gateway.

[0087] Furthermore, the RF transceiver is connected to the transceiver unit, and is used to modulate the signal sent by the transceiver unit, or to demodulate the signal received by the transparent antenna and transmit it to the transceiver unit. Specifically, the RF transceiver may include a transmitting circuit, a receiving circuit, a modulation circuit, and a demodulation circuit. After the transmitting circuit receives various types of signals provided by the substrate, the modulation circuit can modulate various types of signals provided by the baseband and then send them to the antenna. The transparent antenna receives the signal and transmits it to the receiving circuit of the RF transceiver. The receiving circuit transmits the signal to the demodulation circuit, and the demodulation circuit demodulates the signal and transmits it to the receiving end.

[0088] Furthermore, the RF transceiver is connected to a signal amplifier and a power amplifier, and the signal amplifier and the power amplifier are connected to a filtering unit, and the filtering unit is connected to at least one logarithmic periodic antenna. In the process of the antenna system sending signals, the signal amplifier is used to improve the signal-to-noise ratio of the signal output by the RF transceiver and then transmit it to the filtering unit; the power amplifier is used to amplify the power of the signal output by the RF transceiver and then transmit it to the filtering unit; the filtering unit may specifically include a duplexer and a filtering circuit, and the filtering unit combines the signals output by the signal amplifier and the power amplifier and transmits them to the logarithmic periodic antenna after filtering out clutter, and the logarithmic periodic antenna radiates the signal. In the process of the antenna system receiving signals, the logarithmic periodic antenna receives the signal and transmits it to the filtering unit, and the filtering unit filters out clutter from the signal received by the antenna and transmits it to the signal amplifier and the power amplifier, and the signal amplifier amplifies the power of the signal received by the logarithmic periodic antenna. The signal received by the logarithmic periodic antenna is processed by the power amplifier and the signal amplifier and then transmitted to the RF transceiver, and the RF transceiver transmits it to the transceiver unit.

[0089] In some examples, the signal amplifier may include various types of signal amplifiers, such as a low noise amplifier, which is not limited herein.

[0090] In some examples, the electronic device provided by the embodiments of the present disclosure further includes a power management unit, which is connected to a power amplifier to provide the power amplifier with a voltage for amplifying a signal.

[0091] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure (including the claims) of the embodiments of the present disclosure is limited to these examples; under the concept of the embodiments of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present disclosure as above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the protection scope of the embodiments of the present disclosure.

Claims

1. An antenna, characterized in that: It includes a first substrate and a second substrate which are stacked; wherein, The first substrate comprises: At least one radiation component, at least one first feeder and at least one second feeder, wherein one radiation component is electrically connected to one first feeder and one second feeder, and the first feeder and the second feeder have different feeding directions; The second substrate comprises: The second dielectric substrate has a third surface and a fourth surface arranged opposite to each other along the thickness direction thereof; A second reference electrode layer is arranged on the third surface side; The first feeding structure and the second feeding structure are both arranged on the fourth surface side, and the first feeding structure includes one of the first feeding ports and at least one of the second feeding ports; the second feeding structures each include one of the third feeding ports and at least one of the fourth feeding ports; and one of the second feeding ports is electrically connected to one of the first feed lines, and one of the fourth feeding ports is electrically connected to one of the second feed lines; The first connecting via and the second connecting via both penetrate the second dielectric substrate and the second reference electrode layer, and the first connecting via at least partially overlaps with the orthographic projection of the first feeding port on the plane where the third surface is located, and the second connecting via at least partially overlaps with the orthographic projection of the third feeding port on the plane where the third surface is located.

2. The antenna according to claim 1, characterized in that Also includes: a first radio frequency line and a second radio frequency line; The core of the first radio frequency line is electrically connected to the first feeding port through the first connecting via; The core of the second radio frequency line is electrically connected to the third feeding port through the second connecting via; the reference electrode layer of the first radio frequency line and the reference electrode layer of the second radio frequency line are both connected to the second reference electrode layer.

3. The antenna according to claim 2, characterized in that: The first radio frequency line and the second radio frequency line are both led out from the plane where the third surface is located.

4. The antenna according to claim 2, characterized in that: The first radio frequency line and the second radio frequency line are both led out from the fourth surface away from the third surface.

5. The antenna according to claim 1, characterized in that The first substrate further comprises: A first dielectric substrate having a first surface and a second surface disposed opposite to each other along a thickness direction thereof; A first reference electrode layer, disposed on the first surface side; The at least one radiation component, the at least one first feed line and the at least one second feed line are all arranged on the second surface side.

6. The antenna according to claim 5, characterized in that The third surface is closer to the first surface than the fourth surface, and the first reference electrode layer is electrically connected to the second reference electrode layer.

7. The antenna according to claim 5, characterized in that: The first feeding port and the third feeding port have no overlap with the orthographic projection of the first dielectric substrate on the plane where the third surface is located.

8. The antenna according to claim 5, characterized in that: The orthographic projection of the first dielectric substrate on the plane where the third surface is located covers the orthographic projection of the second dielectric substrate on the plane where the third surface is located.

9. The antenna according to claim 1, characterized in that: The spacings between at least some of the adjacent radiation components are unequal.

10. The antenna according to claim 1, characterized in that: It also includes at least one first parasitic radiation component, which is arranged on a side of the radiation component away from the third surface and has a certain distance from the radiation component.

11. The antenna according to claim 10, characterized in that: It also includes a second parasitic radiation component arranged on the same layer as the first parasitic radiation component and located on the opposite side of the radiation component to which the first feeder is connected.

12. The antenna according to claim 10, characterized in that: The first parasitic radiation component has a main structure and a protruding structure connected to the outer contour of the main structure.

13. The antenna according to claim 1, characterized in that The radiation component includes a plurality of first edges arranged in sequence, and a connecting edge connected between adjacent first edges, and an angle formed by the connecting edge and the first edge is an obtuse angle.

14. The antenna according to claim 1, characterized in that At least one of the at least one radiating element, the at least one first feed line, and the at least one second feed line is a metal mesh structure.

15. The antenna according to claim 1, characterized in that The second substrate is a printed circuit board.

16. The antenna according to claim 1, characterized in that It also includes an antenna cover, and the first substrate and the second substrate are fixed in the accommodating space of the antenna cover.

17. An electronic device, characterized in that: Comprising the antenna as described in any one of claims 1-16.

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