An antenna and electronic device

Abstract

The application 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 stack; the first substrate comprises a radiation component, a first feed line and a second feed line which are electrically connected to the radiation component; the second substrate comprises: a second dielectric substrate having a third surface and a fourth surface; a second reference electrode layer arranged on the third surface side; a first feed structure and a second feed structure both arranged on the fourth surface side, and a second feed port of the first feed structure is electrically connected to the first feed line, and a fourth feed port of the second feed structure is electrically connected to the second feed line; a first connecting via and a second connecting via which penetrate through the second dielectric substrate and the second reference electrode layer, and the first connecting via is in communication with the first feed port, and the second connecting via is in communication with the third feed port. Through the scheme of the application, the first feed structure and the second feed structure are prevented from crossing lines, and the welding of the radio frequency line is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of antennas, and in particular to an antenna and an electronic device. BACKGROUND

[0002] With the continuous development of mobile communication technology, as an indispensable part of mobile communication devices, people have put forward higher and higher requirements for the design of antennas. Dual-polarized antennas can simultaneously transmit two-directional wireless signals, saving the number of directional base station antennas, and are increasingly applied to mobile communication devices. However, there are some problems that need to be solved in the process of dual-polarized antennas, such as poor isolation between the two polarizations of the dual-polarized antenna, and cross interference of the power distribution lines of the two polarizations in order to facilitate the welding of the radio frequency line. At the same time, in order to make the antenna better integrate into the environment, realize the beautification of the mobile communication device, and improve the concealment of the antenna in the mobile communication device, the transparency of the antenna also needs to be improved. SUMMARY

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

[0004] An aspect of the embodiment of the present application provides an antenna, which specifically comprises: a first substrate and a second substrate arranged in a stack; wherein,

[0005] The first substrate comprises:

[0006] At least one radiation component, at least one first feed line and at least one second feed line, and one radiation component is electrically connected to one first feed line and one second feed line, and the feed directions of the first feed line and the second feed line are different;

[0007] The second substrate comprises:

[0008] The second substrate comprises:

[0009] The second substrate comprises:

[0010] The first feed structure and the second feed structure are both arranged on the fourth surface side, and the first feed structure comprises one first feed port and at least one second feed port; the second feed structure comprises one third feed port and at least one fourth feed port; and one second feed port is electrically connected to one first feed line, and one fourth feed port is electrically connected to one second feed line;

[0011] The first connection via and the second connection via both penetrate the second dielectric substrate and the second reference electrode layer, and the first connection via and the first feeding port at least partially overlap in the orthographic projection of the third surface, and the second connection via and the third feeding port at least partially overlap in the orthographic projection of the third surface.

[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 radio frequency line is electrically connected with the first feeding port through the first connection via, and the core of the second radio frequency line is electrically connected with the third feeding port through the second connection 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 with the second reference electrode layer.

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

[0015] In some embodiments, the first radio frequency line and the second radio frequency line are both led out from the fourth surface 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 oppositely arranged along the thickness direction thereof;

[0018] A first reference electrode layer arranged on the side of the first surface;

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

[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 with the second reference electrode layer.

[0021] In some embodiments, the first feeding port and the third feeding port do not overlap with the orthographic projection of the first dielectric substrate on the third surface.

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

[0023] In some embodiments, the intervals between at least some adjacent radiation components are not equal.

[0024] In some embodiments, the antenna further comprises at least one first parasitic radiating element, one of the first parasitic radiating elements is disposed on a side of one of the radiating elements away from the third surface and has a certain spacing with the radiating element.

[0025] In some embodiments, the antenna further comprises a second parasitic radiating element disposed in the same layer as the first parasitic radiating element and located on the opposite side of the radiating element connected with the first feeding line.

[0026] In some embodiments, the first parasitic radiating element has a main body structure and a protruding structure connected to the outer contour of the main body structure.

[0027] In some embodiments, the radiating element comprises a plurality of first edges arranged in sequence, and a connecting edge connected between adjacent first edges, and an included 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 feeding line and the at least one second feeding 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 comprises a radome, and the first substrate and the second substrate are fixed in the accommodation space of the radome.

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

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other embodiments can also be obtained from these drawings without creative labor.

[0033] Figure 1 A structural schematic diagram of an antenna provided by the embodiments of the present disclosure;

[0034] Figure 2 A structural schematic diagram of a second substrate provided by the embodiments of the present disclosure;

[0035] Figure 3 A structural schematic diagram of a second substrate provided by the embodiments of the present disclosure; Figure 2 A side view schematic diagram of the second substrate;

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

[0037] Figure 5 A structural schematic diagram of a second substrate provided by an embodiment of the present disclosure; Figure 4

[0038] Figure 6 A structural schematic diagram of a second substrate provided by an embodiment of the present disclosure; Figure 4

[0039] Figure 7 A structural schematic diagram of a radiation component and first and second feed lines connected thereto provided by an embodiment of the present disclosure;

[0040] Figure 8 A structural schematic diagram of a radio frequency line drawn out from one side of a second substrate provided by an embodiment of the present disclosure;

[0041] Figure 9 A structural schematic diagram of a radio frequency line drawn out from the other side of a second substrate provided by an embodiment of the present disclosure;

[0042] Figure 10 A structural schematic diagram of a parasitic radiation component provided by an embodiment of the present disclosure;

[0043] Figure 11 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure.

[0044] Figure 12 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure; Figure 1 A standing wave ratio diagram of the antenna shown in FIG. 10 at a working frequency of 3.3-3.7 GHz;

[0045] Figure 13 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure; Figure 1 An isolation diagram of the antenna shown in FIG. 10 at a working frequency of 3.3-3.7 GHz;

[0046] Figure 14a A structural schematic diagram of an antenna provided by an embodiment of the present disclosure; Figure 14b A directional diagram of the antenna shown in FIG. 10 at a center frequency; Figure 1

[0047] A structural schematic diagram of an antenna provided by an embodiment of the present disclosure; Figure 15 Figure 1 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure;

[0048] Figure 16 Figure 1 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure;

[0049] Figure 17 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure; Figure 1 A cross-polarization ratio diagram of the antenna shown in FIG. 10. DETAILED DESCRIPTION

[0050] ​​​​So that the purposes, technical solutions and advantages of the present application can be more clearly understood, the following further describes the embodiments of the present application in detail with reference to the specific embodiments and in conjunction with the accompanying drawings. It should be understood, however, that the disclosed embodiments are merely examples and other embodiments can take various alternative forms. The drawings are not necessarily drawn to scale; some features can be exaggerated or minimized for the purpose of clarity. Therefore, specific structural and functional details disclosed herein should not be construed as limiting, but merely as a representative basis for teaching one skilled in the art to employ the present application in a variety of ways. As will be appreciated by one skilled in the art, reference to the various features shown and described in connection with any one figure can be combined with features shown in one or more other figures to produce embodiments that are not explicitly shown or described. The combination of features illustrated provides representative embodiments for typical applications. However, various combinations and modifications of features, consistent with the teachings of the present disclosure, can be desired for particular applications or implementations.

[0051] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, the terms "one", "a", or "the" and similar terms do not denote a quantity of any number, but rather denote the existence of at least one of the frequently used terms. The terms "include" or "contain" and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly. The term "and / or" when used to list two or more items means that any one of the listed items can be taken by itself, or any combination of two or more of the listed items can be taken.

[0052] In a first aspect, the present disclosure provides an antenna, which includes a first substrate and a second substrate. The first substrate is provided with a radiation component, and the second substrate is provided with a feeding structure for feeding the radiation component.

[0053] Specifically, Figure 1 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure is shown in FIG. 1. Figure 2 A structural schematic diagram of a second substrate provided by an embodiment of the present disclosure is shown in FIG. 2. Figure 3 A structural schematic diagram of a second substrate provided by an embodiment of the present disclosure is shown in FIG. 2. Figure 2 A side view schematic diagram of the second substrate is shown in FIG. 3. 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 the second substrate;

[0054] Figure 7 This is a schematic diagram of the structure of the radiation component and the first feeder and the second feeder connected thereto provided in an embodiment of the present disclosure. Figures 1-7 As shown, the antenna includes a first substrate 10 and a second substrate 20 stacked together. The first substrate 10 includes at least one radiating element 11, at least one first feed line 12, and at least one second feed line 13. Each radiating element 11 is electrically connected to one first feed line 12 and one second feed line 13, and the first feed line 12 and the second feed line 13 have different feeding directions. 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 one first feed line 12, and one fourth feeding port 242 is electrically connected to one 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. The orthographic projections 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 overlap, and the orthographic projections 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 overlap. During the operation of the antenna, microwave signals are respectively fed 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, the connection via hole penetrating through the second dielectric substrate 21 and the second reference electrode layer 22 is arranged, and the connection via hole and the corresponding feed port at least partially overlap in the projection area on the plane where the third surface 211 is located, so that the first feed structure 23 and the second feed structure 24 are prevented from crossing the wire, the welding of the radio frequency wire is facilitated, and the assembly difficulty of the antenna is reduced.

[0057] With reference to Figure 1 , Figure 4 , Figure 5 and Figure 6 , the first substrate not only includes the above-mentioned radiation component 11, the first feed line 12 and the second feed line 13, but also includes the first dielectric substrate 14 and the first reference electrode layer 15. The first dielectric substrate 14 has a first surface 141 and a second surface 142 arranged oppositely along the thickness direction thereof, and the first reference electrode layer 15 is arranged on the first surface side. The at least one radiation component 11, the at least one first feed line 12 and the at least one second feed line 13 are all arranged on the second surface 142 side. Specifically, one radiation component 11 is electrically connected to one first feed line 12 and one second feed line 13 at the same time, and the feed directions of the first feed line 12 and the second feed line 13 are different, so that a dual-polarized antenna can be realized. The radiation component and the first feed line and the second feed line can be bonded on the first dielectric substrate through optical glue, so as to improve the physical strength of the antenna.

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

[0059] In the example as shown in Figure 1 , the antenna includes four elements, and the adjacent elements are arranged at unequal intervals to form a 1x4 array. With reference to Figures 1-3 , the first feed structure 23 on the second substrate 20 includes one first feed port 231 and four second feed ports 232. The second feed structure 24 on the second substrate 20 includes one third feed port 241 and four fourth feed ports 242. The first feed port 231 is arranged at the middle position of the first feed structure 23, and the interval between every two adjacent second feed ports among any three adjacent second feed ports is unequal. The fourth feed port 242 is arranged at the middle position of the second feed structure 24, and the interval between every two adjacent fourth feed ports 242 among any three adjacent fourth feed ports 242 is unequal. In this way, the phase of the feed port connected to the feed line in each feed structure is ensured to be as consistent as possible, and the phase consistency of the antenna is improved.

[0060] With reference to Figures 1-3In the embodiment of the present disclosure, each second feeding port 232 of the first feeding structure 23 corresponds to a first feeding line 12 of 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 of 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 of the oscillator through a fourth connecting via.

[0061] In some examples, the material of the first dielectric substrate includes, but is not limited to, any transparent rigid substrate, including polycarbonate (PC), cycloolefin polymer (COP), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), and transparent low-loss glass. In the disclosed embodiments, the transparent dielectric substrate 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 corners of a square patch. Among them, the first feeder 12 can be electrically connected to any one of the plurality of connecting edges. In this case, the second feeder 13 is electrically connected to a connecting edge adjacent to the connecting edge electrically connected to the first feeder 11. In the case Figure 7In the shown embodiment, only the case that the radiation assembly includes four first edges is described. In the embodiment of the present disclosure, the feeding direction of the first feed line is-45°, and the feeding direction of the second feed line is +45°, so that the ±45° dual polarization can be realized. It should be understood that the embodiment described herein is only used for illustration and explanation of the present application, and is not used to limit the present application. In some examples, when the feeding direction of the first feed line is 0°, and the feeding direction of the second feed line is 90°, the 0° and 90° dual polarization can also be realized.

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

[0064] In some examples, the antenna of the embodiment of the present disclosure is a transparent antenna. In order to improve the light transmittance of the transparent antenna, the radiation assembly 11, the first feed line 12 and the second feed line 13 can all be metal mesh structures. Specifically, the metal mesh structure can be formed by metal mesh imprinting or etching process. The thickness of the radiation assembly can be 50-250 microns, the line width of the metal mesh can be 2-30 microns, the line spacing can be 50-200 microns, and the thickness can be 1-10 microns. Thus, the radiation assembly and the feed line with light transmittance of 70%-88% can be obtained, thereby improving the light 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 can also be a metal mesh 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 the 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.

[0068] Figure 8 The structure schematic diagram of the radio frequency line provided by the embodiment of the present disclosure is drawn from the second substrate side. In some embodiments, referring to Figure 1 and Figure 8In addition to the above structure, the antenna further 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, and 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. In the working process 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, continuing 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 of the third surface 211 of the second dielectric substrate 21, that is, the first substrate and the second substrate are misaligned although they are stacked. In this case, the first RF line 30 and the second RF line 40 can both be led out of the plane of the third surface 211. Thus, the embodiments of the present disclosure not only avoid the crossing of the first feeding structure and the second feeding structure, but also facilitate the soldering of the RF lines, reduce the assembly difficulty of the antenna, and reduce the occupied space of the antenna in the overall height H direction.

[0070] Figure 9 A structure diagram of the RF line led out from the other side of the second substrate is provided for the embodiments of the present disclosure. In some examples, referring to Figure 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 of the third surface 211 of the second dielectric substrate 21 covers the orthographic projection of the second dielectric substrate 21 on the plane of the third surface 211, and at this time, the first RF line 30 and the second RF line 40 can be led out from the side of the fourth surface 212 away from the third surface. That is, in this case, the first substrate and the second substrate completely overlap, reducing the size of the antenna. Thus, the embodiments of the present disclosure not only avoid the crossing of the first feeding structure and the second feeding structure, but also reduce the assembly difficulty of the antenna and reduce the occupied space of the antenna in the overall width S direction.

[0071] Figure 10 A structure diagram of the parasitic radiation assembly is provided for the embodiments of the present disclosure. In some embodiments, referring to Figure 1 and Figure 10In addition to the above structure, the antenna further comprises at least one first parasitic radiation component 50. The first parasitic radiation component 50 is arranged on the side of the third surface 211 of the radiation component 11 away from the second dielectric substrate 21, and the first parasitic radiation component 50 is spaced apart from the corresponding radiation component 11. By arranging the first parasitic radiation component corresponding to the radiation component at a position spaced apart from the radiation component, the cross-polar isolation of the antenna is improved.

[0072] In some examples, continuing to refer to Figure 10 The first parasitic radiation component 50 has a main body structure 51 and a protruding structure 52 connected to the outer contour of the main body structure. The main body structure comprises a plurality of second edges connected in sequence. The shape of the protruding structure can be semicircular, polygonal, etc., which is not limited here. In the example as shown in Figure 10 The main body structure comprises four second edges connected in sequence, and the protruding structure is located on the side and the opposite side of the radiation component connected with the first feed line and the second feed line, and the shape of the protruding structure is rectangular. It should be understood that the examples described here are only for illustration and explanation of the application, and are not intended to limit the application.

[0073] In some embodiments, continuing to refer to Figure 1 and Figure 10 In addition to the above structure, the antenna further comprises a second parasitic radiation component 60 arranged in the same layer as the first parasitic radiation component 50. The second parasitic radiation component 60 is located on the opposite side of the radiation component 60 connected with the first feed line and the second feed line, thereby further improving the cross-polar isolation of the dual-polarized antenna. In some examples, the shape of the second parasitic radiation component is strip-shaped.

[0074] Figure 11 A structural schematic diagram of an antenna provided by an embodiment of the present disclosure. In some embodiments, referring to Figure 11 The antenna further comprises a radome 100, and the first substrate 10 and the second substrate 20 are fixed in the accommodation space of the radome 100.

[0075] In some examples, referring to Figure 10 and Figure 11 The radome 100 comprises a cover plate 101 and a bottom plate 102 connected with 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 radome 100 through optical glue, at this time, no additional dielectric plate is needed to bear, so that the structure of the antenna is simpler, the number of transparent injection molding parts and support structures is reduced, and the processing cost is reduced.

[0076] The second substrate 20 can be fixed on the first substrate 10 by plastic rivets or screws, and the first substrate 10 can be fixed on the bottom plate 102 of the radome 100 by transparent plastic screws, and of course other ways of fixing the first substrate and the second substrate on the bottom plate of the radome can also be adopted, which are not limited herein.

[0077] In some examples, the first connection via, the second connection via, the third connection via and the fourth connection via described above can all be conductive holes, which can be filled with conductive members such as copper pillars.

[0078] In order to more clearly show the performance of the embodiments of the present disclosure, the antenna shown in Figure 1 is taken as an example to simulate the antenna.

[0079] Figure 12 The antenna shown in Figure 1 is taken as an example to simulate the antenna. Figure 6 As shown in , it can be seen that the antenna has excellent wideband characteristics and can cover the frequency band of 3.3-3.7 GHz under the standard of a standing wave ratio less than 1.3, which ensures that the antenna has a wide application scenario.

[0080] Figure 13 The antenna shown in Figure 1 is taken as an example to simulate the antenna. Figure 7 As shown in , it can be seen that the antenna has an isolation greater than 26 within the operating frequency, which reduces the signal crosstalk between the radio frequency ports and improves the communication quality.

[0081] Figure 14a The antenna shown in Figure 14b is taken as an example to simulate the antenna. Figure 1 As shown in Figure 14a , it can be seen that the antenna has a large angle characteristic in the vertical plane of radiation, which can effectively cover a wider area; as shown in Figure 14b , it can be seen that the antenna has a relatively narrow beam width in the horizontal plane of radiation, which improves the accuracy in the direction of radiation.

[0082] Figure 15 The antenna shown in Figure 1 is taken as an example to simulate the antenna. Figure 15 As shown in , it can be seen that the antenna can achieve a high gain characteristic of greater than 12dBi, which greatly ensures the excellent signal transmitting and receiving capability of the antenna.

[0083] Figure 16 The antenna shown in Figure 1 is taken as an example to simulate the antenna. Figure 16As shown, when the antenna does not include the second parasitic radiation component, the isolation of the polarized ports is 22.75 dB, and when the antenna includes the second parasitic radiation component, the isolation of the polarized ports is 26 dB. It can be seen that the embodiment of the present disclosure improves the isolation of the polarized ports of the antenna from 22.75 dB to 26 dB by introducing the second parasitic radiation component.

[0084] Figure 17 for Figure 1 The cross-polarization ratio diagram of the antenna is shown. Figure 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, thus ensuring that the dual-polarization received signals 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 further 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. The baseband provides a signal of at least one frequency band, for example, a 2G signal, a 3G signal, a 4G signal, a 5G signal, 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 initial unit. The receiving end can be, for example, a smart gateway.

[0087] Furthermore, a radio frequency transceiver is connected to the transceiver unit and is used to modulate the signals sent by the transceiver unit, or to demodulate the signals received by the transparent antenna and transmit them back to the transceiver unit. Specifically, the radio frequency 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 the various types of signals provided by the baseband and then transmit them to the antenna. The transparent antenna receives the signal and transmits it to the receiving circuit of the radio frequency transceiver. The receiving circuit transmits the signal to the demodulation circuit, which demodulates the signal and transmits it to the receiving end.

[0088] Further, the radio frequency transceiver is connected with the signal amplifier and the power amplifier, the signal amplifier and the power amplifier are connected with the filtering unit, and the filtering unit is connected with the at least one log-periodic antenna. In the process of transmitting signals by the antenna system, the signal amplifier is used to improve the signal-to-noise ratio of the signal output by the radio frequency transceiver and then transmit the signal to the filtering unit; the power amplifier is used to amplify the power of the signal output by the radio frequency transceiver and then transmit the signal to the filtering unit; the filtering unit can specifically include a duplexer and a filtering circuit, the filtering unit combines and filters the signals output by the signal amplifier and the power amplifier and then transmits the signals to the log-periodic antenna, and the log-periodic antenna radiates the signals. In the process of receiving signals by the antenna system, the log-periodic antenna receives the signals and then transmits the signals to the filtering unit, the filtering unit filters the signals received by the antenna and then transmits the signals to the signal amplifier and the power amplifier, the signal amplifier increases the gain of the signals received by the antenna and increases the signal-to-noise ratio of the signals, and the power amplifier amplifies the power of the signals received by the log-periodic antenna. The signals received by the log-periodic antenna are processed by the power amplifier and the signal amplifier and then transmitted to the radio frequency transceiver, and the radio frequency transceiver transmits the signals to the transceiving unit.

[0089] In some examples, the signal amplifier can include various types of signal amplifiers, such as a low-noise amplifier, without limitation.

[0090] In some examples, the electronic device provided by the embodiments of the present disclosure further includes a power management unit connected with the power amplifier, and the power management unit provides a voltage for the power amplifier to amplify signals.

[0091] It should be understood by those of ordinary skill in the art that the above discussion of any of the embodiments is merely exemplary and is not intended to suggest the scope of the disclosure (including claims) is limited to these examples; under the idea of the embodiments of the present disclosure, the above embodiments or technical features in different embodiments can also be combined, and there are many other changes of different aspects of the embodiments of the present disclosure as described above, and they are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present disclosure shall 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 that are stacked; wherein, The first substrate includes: At least one radiating element, at least one first feeder and at least one second feeder, wherein one radiating element 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 includes: The second dielectric substrate has a third surface and a fourth surface disposed opposite to each other along a thickness direction thereof; a second reference electrode layer, disposed on the third surface side; A first feeding structure and a second feeding structure are both arranged on the side of the fourth surface, and the first feeding structure includes a first feeding port and at least one second feeding port; the second feeding structure includes a third feeding port and at least one fourth feeding port; and one second feeding port is electrically connected to one first feed line, and one fourth feeding port is electrically connected to one second feed line; The first connecting via and the second connecting via both pass through the second dielectric substrate and the second reference electrode layer, and the first connecting via at least partially overlaps with an 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 an orthographic projection of the third feeding port on the plane where the third surface is located.

2. The antenna according to claim 1, wherein 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 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.

3. The antenna according to claim 2, wherein: 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, wherein: The first radio frequency line and the second radio frequency line are both led out from the side of the fourth surface facing away from the third surface.

5. The antenna according to claim 1, wherein The first substrate further includes: The first dielectric substrate has 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 do not 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, wherein: 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, wherein: The distances between at least some of the adjacent radiation components are unequal.

10. The antenna according to claim 1, wherein 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, wherein: 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, wherein: 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, wherein 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, wherein 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, wherein The second substrate is a printed circuit board.

16. The antenna according to claim 1, wherein 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 according to any one of claims 1 to 16.

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