Multi-band antenna assembly and device having same

Abstract

The invention discloses an antenna assembly and electronic equipment with the same. The antenna assembly includes a ground element configured to be electrically connected to a ground plane at a ground point and a feed element configured to be electrically connected to a radio signal circuit at a feed point. The ground element is physically separated and disconnected from the feed element, and at least a portion of the feed element extends substantially parallel to at least a portion of the ground element to provide a capacitive coupling between the feed element and the ground element during operation of the antenna assembly. The antenna assembly according to the present disclosure may be manufactured to have a small size and a thin thickness while ensuring performance and antenna efficiency of the antenna assembly.

Description

Technical Field

[0001] The present disclosure generally relates to an antenna device suitable for a mobile terminal, and more particularly to a multi-band antenna assembly and an electronic device having the multi-band antenna assembly. Background Art

[0002] Mobile devices such as mobile phones, personal digital assistant (PDA) devices, gaming devices, and augmented reality (AR) / virtual reality (VR) devices are becoming increasingly popular. Such electronic devices typically have wireless communication capabilities and are integrated with antennas for wireless communication. Due to the small form factor of such mobile devices, the space for antennas in the mobile devices is limited.

[0003] In the industrial field, various antennas built into mobile devices are provided. For example, a planar inverted-F antenna is proposed as a multi-band built-in antenna capable of operating in multiple frequency bands. However, the general planar inverted-F antenna has a reduced transmission range due to spatial complexity.

[0004] Loop antennas are widely used in high frequency applications. Conventional loop antennas have the disadvantages of complex matching circuits, relatively large distances from the ground plane, and large radiation efficiency losses.

[0005] In this regard, there is a need for an antenna having a simple structure and good performance suitable for being built into a mobile device. Summary of the invention

[0006] The purpose of the present disclosure is to provide an antenna assembly with small size, thin thickness, simple structure and good performance. To achieve the above purpose, at least the following technical solutions are provided:

[0007] In one aspect, an antenna assembly is provided, the antenna assembly comprising an antenna radiator, wherein the antenna radiator comprises: a ground element configured to be electrically connected to a ground plane at a ground point; and a feed element configured to be electrically connected to a radio signal circuit at the feed point. The ground element is physically separated and disconnected from the feed element, and at least a portion of the feed element extends substantially parallel to at least a portion of the ground element to provide capacitive coupling between the feed element and the ground element during operation of the antenna assembly.

[0008] In one embodiment, the antenna assembly further comprises: a first matching element configured to connect the ground element to the ground plane at the ground point; and a second matching element configured to connect the feed element to the radio signal circuit at the feed point.

[0009] In one embodiment, the first matching element extends substantially parallel to the second matching element, and the length of the first matching element is substantially the same as the length of the second matching element.

[0010] In one embodiment, the first matching element extends substantially parallel to the second matching element, and a length of the first matching element is shorter than a length of the second matching element.

[0011] In one embodiment, the first matching element and the second matching element form an angle greater than 0 degrees and less than 30 degrees.

[0012] In one embodiment, the antenna assembly further includes a dielectric carrier for supporting the antenna radiator.

[0013] In one embodiment, the antenna radiator is planar.

[0014] In one embodiment, the planar antenna radiator is arranged in the same plane as the ground plane.

[0015] In one embodiment, the planar antenna radiator is arranged in a plane spaced apart from and substantially parallel to the ground plane.

[0016] In one embodiment, the first matching element and the second matching element are arranged in a plane perpendicular to the ground plane.

[0017] In one embodiment, the ground point is located in a central portion of the ground plane, and the antenna radiator protrudes outwardly relative to the ground point, with at least a portion of the antenna radiator facing the ground plane.

[0018] In one embodiment, the grounding point is located at an edge of the ground plane, and the antenna radiator protrudes into the inside of the ground plane relative to the grounding point, with at least a portion of the antenna radiator facing the ground plane.

[0019] In one embodiment, the ground point is located at an edge of the ground plane, and the antenna radiator protrudes outside the ground plane relative to the ground point, with no portion of the antenna radiator facing the ground plane.

[0020] In one embodiment, the antenna assembly further includes a first branch, wherein the first branch extends from the ground element and has an open end.

[0021] In one embodiment, the antenna assembly further includes a second branch, wherein the second branch extends from the feeding element and has an open end.

[0022] In one embodiment, the antenna assembly further includes a third branch, wherein the third branch extends from the feeding element and has an open end, and the third branch extends in a direction perpendicular to the second branch.

[0023] In one embodiment, the antenna assembly is a multi-band antenna assembly.

[0024] In one embodiment, the ground plane and the antenna radiator are formed on different layers of the printed circuit board.

[0025] In a second aspect, an electronic device is provided. The electronic device includes the antenna assembly of any of the above embodiments.

[0026] In the present disclosure, an antenna assembly includes a grounding element configured to be electrically connected to a ground plane at a grounding point and a feeding element configured to be electrically connected to a radio signal circuit at a feeding point. The grounding element is physically separated and disconnected from the feeding element, and at least a portion of the feeding element extends substantially in parallel with at least a portion of the grounding element to provide capacitive coupling between the feeding element and the grounding element during operation of the antenna assembly. By physically separating and disconnecting the grounding element and the feeding element, the total physical length of the antenna assembly can be reduced; and the capacitive coupling between the feeding element and the grounding element during operation of the antenna assembly contributes to the function of the antenna assembly and ensures good performance of the antenna assembly. Therefore, the antenna assembly according to the present disclosure can be manufactured to have a small size and a thin thickness while ensuring the performance of the antenna assembly and the antenna efficiency. Therefore, the antenna assembly according to the present disclosure can provide good wireless connectivity for a device on which the antenna assembly is installed, and is conducive to the miniaturization of the device. For example, in a mobile device such as a gaming device having Bluetooth technology for communicating with a wireless controller, for example, in a case where there are many wireless devices using the same frequency such as Bluetooth, wireless LAN, microwave ovens, etc., if the antenna performance is good, these gaming devices do not have any connection problems between the main device and the controller even in a bad environment with a high noise floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions or conventional technologies according to the embodiments of the present disclosure, the following briefly describes the drawings applied to the embodiments of the present disclosure or the conventional technologies. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on the provided drawings without creative work.

[0028] Figure 1 is a schematic diagram of a pattern of an antenna assembly according to an embodiment of the present disclosure;

[0029] Figure 2 is a schematic diagram illustrating an exemplary electrical arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure;

[0030] Figure 3 is a schematic diagram of a pattern of a multi-band antenna assembly according to another embodiment of the present disclosure;

[0031] Figures 4a to 4e is a schematic diagram of an exemplary pattern of a multi-band antenna according to other embodiments of the present disclosure;

[0032] Figure 5 is a simulated return loss curve diagram of a multi-band antenna assembly provided according to an embodiment of the present disclosure;

[0033] Figure 6 is a simulated antenna efficiency curve diagram of a multi-band antenna assembly provided according to an embodiment of the present disclosure;

[0034] Figure 7 is a schematic structural diagram of a multi-band antenna assembly according to an embodiment of the present disclosure;

[0035] Figure 8 is a schematic diagram showing another arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure;

[0036] Fig. 9 is a schematic diagram showing yet another arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure;

[0037] Fig.10 is a schematic diagram of a mobile device provided with a multi-band antenna assembly according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present disclosure are described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure rather than all embodiments. Any other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the protection scope of the present disclosure.

[0039] It should be noted that the terms "first", "second", "third", "fourth", etc. are only used to distinguish one entity or operation from another entity or operation, and do not require or imply the existence of an actual relationship or order between the entities or operations. In addition, terms such as "include", "comprise" or any other variation thereof are meant to be non-exclusive. Therefore, a process, method, article or device that includes a series of elements includes not only the disclosed elements, but also other elements that are not clearly listed, or also includes inherent elements of the process, method, article or device. Unless there is a clear limitation, the expression "including..." does not exclude the possibility that other similar elements may exist in the process, method, article or device in addition to the listed elements.

[0040] In addition, the present disclosure is described in conjunction with schematic diagrams. When describing the embodiments of the present disclosure in detail, for ease of explanation, the cross-sectional views showing the structure of the device are partially enlarged and not drawn to scale. The accompanying drawings are exemplary and are not intended to limit the scope of protection of the present disclosure. In addition, in the actual manufacturing process, the three-dimensional dimensions, namely the length, width and depth, should be considered.

[0041] It should be noted that the first feature mentioned in the structure or step "on" or "over" the second feature includes the case where the first feature is in direct contact with the second feature and the case where other features exist between the first feature and the second feature, that is, the first feature and the second feature may not be in direct contact.

[0042] Reference Figure 1 , the multi-band antenna assembly 1 includes, among other components, an antenna radiator 101. Specifically, the antenna radiator 101 includes a ground element 111 and a feed element 121. The ground element 111 is configured to be electrically connected to a ground plane (not shown) at a ground point 104. The feed element 121 is configured to be electrically connected to a radio signal circuit (RF) at a feed point 105. The feed point 105 is disposed adjacent to the ground point 104.

[0043] As shown, the ground element 111 is physically separated and disconnected from the feeding element 121. In other words, there is no direct electrical connection between the feeding element 121 and the ground element 111. In addition, the feeding element 121 is disconnected from the ground plane.

[0044] The ground element 111 may be in various shapes. In an embodiment, the ground element 111 may be a long strip and may have multiple portions connected end to end. In some embodiments, the ground element 111 may be an elongated conductive strip folded at one or more points to form a loop-like shape to save space required for the antenna assembly. For example, the ground element 111 may include at least a first portion extending in a first direction, a second portion extending in a second direction perpendicular to the first direction, and a third portion extending in a third direction substantially parallel to and opposite to the first direction, and the resulting U-shape maintains a long antenna element and thus maintains the lowest resonant frequency available to the antenna assembly.

[0045] although Figure 1 The grounding element 111 shown in FIG. 1 forms an almost symmetrical structure, but the present disclosure is not limited thereto. Most of the grounding element 111 may also be an asymmetrical structure.

[0046] Although the grounding element 111 is Figure 1 1 is shown as a portion including an end-to-end connection, but it should be noted that the structure of the ground element 111 is not limited thereto, and the ground element 111 may include more than two open ends, as will be described in detail later. Figure 1 Although shown as having portions with substantially the same width, the various portions of the ground element 111 may have different widths as desired, which will be described later.

[0047] Similarly, the feeding element 121 can be in various shapes. The feeding element 121 can also be a folded or undone conductive strip. For example, the feeding element 121 can be formed into an L shape as shown in the figure.

[0048] The ground element 111 and the feeding element 121 may be made of a metal sheet, a metal trace on a carrier, or may be made of a flexible substrate or a rigid substrate, a metal interconnect device (MID), etc. The ground element 111 and the feeding element 121 may be made of various conductive materials, including but not limited to silver, copper, etc., transparent conductive oxides (e.g., indium tin oxide ITO), carbon nanotubes, graphene, etc.

[0049] like Figure 1 As shown, at least a portion 1111 of the ground element 111 extends substantially parallel to a portion 1211 of the feed element 121 in the same direction. A portion 1111 of the ground element 111 is arranged close to a portion 1211 of the feed element 121, with a slit or gap formed between the two portions 1111 and 1211. With such a configuration, a portion 1211 of the feed element 121 is arranged to form a capacitive slit / gap that provides for capacitive coupling between the feed element 121 and the ground element 111 during operation of the antenna assembly. To this end, the width of the slit or gap between the portions 1111 and 1211 is appropriately selected. In a preferred embodiment, the width of the slit or gap between the portions 1111 and 1211 is in the range of 0.1 mm to 5 mm.

[0050] In a preferred embodiment, a portion 1211 of the feed element 121 has a length sufficient to provide a usable coupling capacitance. In some embodiments, in addition to requiring a portion 1211 of the feed element 121 to be long enough to ensure effective coupling capacitance, it is preferred that the total length of the feed element 121 is shorter than the shortest resonant length at the lowest operating frequency of the antenna assembly.

[0051] By setting the antenna radiator 101 of the above-mentioned antenna assembly, the available frequency bandwidth of the antenna assembly is improved, the multi-band characteristics of the antenna assembly are enhanced, and the size of the antenna assembly is more compact. For example, by physically separating and disconnecting the ground element and the feeding element, the total physical length of the antenna assembly can be reduced; and the capacitive coupling between the feeding element and the ground element during the operation of the antenna assembly contributes to the function of the antenna assembly and ensures good performance of the antenna assembly. Therefore, the antenna assembly according to the present disclosure can be manufactured to have a small size and a thin thickness while ensuring the performance of the antenna assembly and the antenna efficiency. Therefore, the antenna assembly according to the present disclosure can provide good wireless connectivity for the device on which the antenna assembly is installed, and is conducive to the miniaturization of the device.

[0052] In one embodiment, the antenna assembly may further include a first matching element 102 and a second matching element 103. The first matching element 102 is configured to connect a ground element 111 to a ground plane at a ground point 104. The second matching element 103 is configured to connect a feed element 121 to an RF circuit at a feed point 105.

[0053] The first matching element 102 and the second matching element 103 may be parallel to each other, such as Figure 1 In other embodiments, the first matching element 102 and the second matching element 103 may have an angle, for example, greater than 0 degrees and less than 30 degrees. The lengths of the two matching elements 102 and 103 may be the same or different.

[0054] According to the embodiments of the present disclosure, the input impedance of the antenna assembly may be changed by adjusting the lengths of the matching elements 102 and 103 and the distance between the first matching element 102 and the second matching element 103 .

[0055] Through proper placement of matching elements 102 and 103, the antenna assembly can be impedance matched when assembled for the end-user environment to achieve maximum efficiency when operating in the desired frequency band. Optimum efficiency results in maximum range, minimum power consumption, reduced heating, and reliable data throughput.

[0056] Figure 2 is a schematic diagram showing an exemplary electrical arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure. As shown in the figure, the antenna assembly includes an antenna radiator 202 and a dielectric carrier 203 for supporting the antenna radiator 202. The dielectric carrier 203 is also used to dielectrically separate the antenna radiator from the ground plane 201.

[0057] The antenna radiator 202 includes a ground element 212 and a feed element 222. The ground element 212 of the antenna assembly is connected to the ground plane 201 at a ground point 204. In addition, the feed element 222 is connected to the RF circuit at a feed point 205.

[0058] The ground element 212 is physically separated and disconnected from the feed element 222. At least a portion of the ground element 212 is disposed proximate to at least a portion of the feed element 222 in a configuration that forms a capacitive coupling between the feed element 222 and the ground element 212 during operation of the antenna assembly.

[0059] like Figure 2 As shown, the ground plane 201 and the antenna assembly are formed as a planar structure. The planar structure may be formed by etching a printed circuit board (PCB), stamping metal, or by other schemes.

[0060] The dielectric carrier 203 may be formed as a frame, a support platform, etc. The dielectric carrier 203 may be made of plastic, resin, ceramic, or any other suitable material.

[0061] In some embodiments, the ground plane 201 and the antenna radiator 202 are formed on different layers of a printed circuit board (PCB).

[0062] The ground element 212 and the feed element 222 may be realized by many different manufacturing methods, such as stamped metal parts, conductors etched on a flexible insulating layer (FPC) and attached to the dielectric carrier 203 using an adhesive layer, or Laser Direct Structuring (LDS) technology.

[0063] It should be noted that the Figure 2 Design parameters of the arrangement shown. For example, the lowest resonant frequency of the antenna assembly can be determined by the total length of the ground element 212, the width of a portion of the ground element 212, and the distance from the ground plane 201. As an example, Figure 3 The antenna assembly depicted in the figure can provide a first resonance in the 2.4 GHz to 2.48 GHz frequency band for Wi-Fi 6E / 7, a second resonance in the 5.15 GHz to 5.85 GHz frequency band, and a third resonance in the 5.925 GHz to 7125 GHz frequency band. It should be noted that the antenna assembly can be designed to operate in other frequency bands or for other communication standards, and the present disclosure is not limited in this regard. For example, the antenna assembly can operate according to a wireless communication standard for a cellular network (e.g., a 2G, 3G, 4G, or 5G standard). The antenna assembly can alternatively or additionally operate in a frequency band in the 2.4 GHz to 2.48 GHz range according to a wireless communication standard for Bluetooth.

[0064] In addition, the length of the conductive feeding element 222 and the width of the capacitive gap between the feeding element 222 and the ground element 212 may be appropriately determined as needed to optimize the impedance value of the antenna assembly at the resonant frequency and the relative bandwidth of the antenna assembly.

[0065] Under the inventive concepts proposed in the present disclosure, the antenna assembly may have different patterns, which fall within the scope of the present disclosure. Figure 3 is a schematic diagram of a pattern of a multi-band antenna assembly according to another embodiment of the present disclosure.

[0066] Similar to Figure 1In the antenna assembly shown, the antenna radiator 301 of the antenna assembly includes a ground element 311 and a feeding element 321. The ground element 311 is configured to be electrically connected to a ground plane. The feeding element 321 is configured to be electrically connected to an RF circuit. The ground element 311 is physically separated and disconnected from the feeding element 321, and a capacitive coupling is formed between the feeding element 321 and the ground element 311 during operation of the antenna assembly.

[0067] The antenna assembly according to this embodiment Figure 1 The antenna assembly of is different in that each of the ground element and the feed element may include one or more branches. Figure 3 As shown, the grounding element 311 includes, in addition to the long conductive strip 3110 folded multiple times, a first branch 3112 extending from a portion of the strip 3110 and having an open end. The first branch 3112 is L-shaped, and most of it is parallel to a portion of the grounding element 311. In addition to the L-shaped strip 3210, the feeding element 321 includes a second branch 3212 and a third branch 3213, the second branch 3212 extending from a portion of the strip 3210 and having an open end, and the third branch 3213 extending from another portion of the strip 3210 and having an open end.

[0068] By introducing one or more branches, other resonances and enhanced frequency bandwidth can be provided for the antenna assembly in at least one resonant frequency band. In addition, by introducing one or more branches, the coupling between the ground element 311 and the feeding element 321 is enhanced.

[0069] It should be noted that Figure 3 The number of branches of the antenna element shown is exemplary, and the present disclosure is not limited thereto. For example, the ground element 311 and / or the feed element 321 may include other branches or may not include branches. It should be noted that Figure 3 The extending directions of the branches shown in are exemplary, and the present disclosure is not limited thereto. For example, the first branch 3112, the second branch 3212, and the third branch 3212 may extend in the same direction, or at least one of the first branch 3112, the second branch 3212, and the third branch 3212 may extend in a direction different from that of the other branches.

[0070] By providing one or more branches for the ground element 311 and / or the feeding element 321 , the antenna assembly can be scalable in terms of the operating frequency band, can have a wider frequency band, and can achieve better antenna performance.

[0071] Several exemplary structures and configurations of antenna assemblies according to the present disclosure are described above. It should be noted that some modifications may be made without departing from the essence of the present disclosure and these modifications fall within the scope of the present disclosure. Figures 4a to 4e is a schematic diagram of exemplary patterns of multi-band antennas according to other embodiments of the present disclosure.

[0072] like Figure 4a As shown, the antenna assembly includes a ground element 411 connected to a ground plane and a feeding element 422 connected to an RF circuit. The ground element 411 is physically separated and disconnected from the feeding element 422. The ground element 411 is formed as a folded strip, some portions of which extend along a first direction and some other portions extend along a second direction perpendicular to the first direction. The feeding element 421 is formed in an inverted F shape. A portion 4111 of the ground element 411 extends substantially parallel to a portion 4211 of the feeding element 421, and a gap is formed between the portions 4111 and 4211. The width of the gap enables capacitive coupling to be formed between the feeding element 421 and the ground element 411 during operation of the antenna assembly. In addition, a portion 4112 of the ground element 411 extends substantially parallel to a portion 4212 of the feeding element 421, and a gap is formed between the portions 4112 and 4212 to provide capacitive coupling.

[0073] like Figure 4b As shown, different from Figure 4a In some embodiments, the antenna assembly may have matching elements of different lengths. For example, the matching element connecting the ground element to the ground plane may be shorter than the matching element connecting the feed element to the RF circuit.

[0074] It should be noted that the grounding element may be formed as other structures besides folded strips. Figure 4c , 4d As shown in Figure 4e, the grounding element may include at least one portion that is wider than other portions. The wider portion may be formed by a metal sheet or the like. One or more wider portions may be arranged near the feeding element or not near the feeding element. In the case of multiple wider portions, the wider portions may be arranged symmetrically or asymmetrically.

[0075] It should be noted that the grounding element and the feeding element may be in any shape or a combination of different shapes, including square, triangle, chamfered rectangle, chamfered square, L-shape or T-shape, which is not limited here.

[0076] Figure 5 is a simulated return loss curve diagram of a multi-band antenna assembly provided according to an embodiment of the present disclosure. Figure 5Three characteristic troughs are shown, each of which represents a corresponding frequency range. It should be noted that although exemplary frequency bands are shown, the present disclosure is not limited in this regard. In other words, the antenna assembly according to the present disclosure can operate in other frequency bands and can operate in accordance with other communication standards.

[0077] Figure 6 : is a simulated antenna efficiency curve diagram of a multi-band antenna assembly provided according to an embodiment of the present disclosure. It can be seen that the antenna assembly provided by the present disclosure has good antenna efficiency.

[0078] The antenna assembly according to the present disclosure has a simple construction, a compact structure, and good antenna performance in multiple frequency bands. Therefore, the antenna assembly according to the present disclosure can provide good wireless connectivity for the device. For example, in a mobile device such as a gaming device having Bluetooth technology for communicating with a wireless controller, in a case where there are many wireless devices such as Bluetooth, wireless LAN, microwave ovens, etc. using the same frequency, if the antenna performance is good, these gaming devices do not have any connection problems between the main device and the controller even in a bad environment with a high noise floor.

[0079] Figure 7 is a schematic structural diagram of a multi-band antenna assembly according to an embodiment of the present disclosure. In this embodiment, the antenna radiator including a ground element and a feeding element is arranged on a plane different from the ground plane and forms a three-dimensional structure. The ground element and the feeding element may be supported by a dielectric carrier (not shown). It should be understood that the dielectric carrier may be made of plastic, resin, ceramic or any other suitable material. The ground element and the feeding element may be implemented by many different manufacturing methods. The antenna radiator (including the ground element and the feeding element) is formed together with the dielectric carrier (if any) into a planar structure located in a plane parallel to the ground plane, and a matching element is arranged between the antenna radiator and the ground plane in a plane perpendicular to the ground plane. One of the matching elements connects the ground element of the antenna radiator to the ground plane at a grounding point. Figure 7 In the structure shown, the ground point is located in the ground plane, that is, away from the edge of the ground plane, and the antenna radiator protrudes outward relative to the ground point, and the edge of the antenna radiator is flush with the edge of the ground plane. In such a structure, the antenna radiator of the antenna assembly faces the ground plane. Figure 7 In the structure shown, due to the characteristics of the antenna, the height h1 measured from the antenna radiator to the ground plane needs to have a predetermined value. In addition, the height h1 may also depend on the mechanical design of the device to which the antenna assembly is to be installed. In a preferred embodiment, the height h1 is greater than 2 mm, and preferably in the range of 2 mm to 10 mm.

[0080] Figure 8is a schematic diagram showing another arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure. Figure 8 In the structure shown, the ground point is located at the edge of the ground plane, and the planar antenna radiator protrudes into the inside of the ground plane relative to the ground point. In addition, the edge of the antenna radiator is flush with the edge of the ground plane, and the matching element is connected to the two edges. In addition, in such a structure, the antenna radiator of the antenna assembly faces the ground plane. Figure 8 In the structure shown, due to the characteristics of the antenna, the height h2 measured from the antenna radiator to the ground plane needs to have a predetermined value.

[0081] Fig. 9 is a schematic diagram showing another arrangement of a multi-band antenna assembly according to an embodiment of the present disclosure. Fig. 9 In the structure shown, the ground point is located at the edge of the ground plane, and the antenna radiator protrudes outside the ground plane relative to the ground point, so that at least a large part of the antenna radiator does not face the ground plane. Fig. 9 In the structure shown, the height h3 measured from the antenna radiator to the ground plane can be smaller. For example, the height h3 can be smaller than h1, and the height h3 can be smaller than h2. In extreme cases, by using Fig. 9 With the arrangement shown, the antenna radiator can be located at the same height as the ground plane, ie h2 = 0. Therefore, when assembled in the housing of the mobile device, there is no restriction on the thickness of the housing of the mobile device due to the antenna assembly.

[0082] Reference Fig.10 , shows an electronic device including an antenna assembly according to an embodiment of the present disclosure. Fig.10 The electronic device 1000 may be a portable computer such as a laptop computer, a portable tablet computer, a mobile phone, a mobile phone with a media player function, a handheld computer, a remote control, a game console, a global positioning system (GPS) device, a desktop computer, a music player, a multi-touch electronic device, augmented reality (AR) glasses, a head mounted display (HMD), a combination of such devices, or any other suitable electronic device. Fig.10 As shown, the electronic device 1000 may include an input-output circuit 1100 , a processor 1200 , and a memory 1300 .

[0083] The processor 1200 may be a microprocessor or other suitable integrated circuit. The processor 1200 and the memory 1300 may be configured to control the operation of the electronic device 1000. In an exemplary embodiment, the processor 1200 may run software stored in the memory 1300 of the electronic device 1000, such as operating system functions, phone call applications, Internet browsing, email applications, media playback applications, control functions for controlling RF power amplifiers and other RF transceivers, etc.

[0084] Memory 1300 may include one or more different types of memory, such as hard drive storage, non-volatile memory (e.g., flash memory or other electrically programmable read-only memory), volatile memory (e.g., static or dynamic random access memory).

[0085] The communication protocols that can be implemented by the processor 1200 include Internet protocols, cellular telephone protocols, wireless local area network protocols (e.g., IEEE 802.11 protocols, known as ), protocols used for other short-range wireless communication links such as Agreement, etc.

[0086] The input-output circuit 1100 is configured to implement input and output functions of the electronic device 1000. The input-output circuit 1100 may include input-output devices and wireless communication circuits 1120. The input-output devices 1111 may be touch screens and other user input devices, such as buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, microphones, cameras, etc. In addition, the input-output devices 1111 may include displays and audio devices, such as liquid crystal display (LCD) screens, light emitting diodes (LEDs), organic light emitting diodes (OLEDs), and other components that present visual information and status data.

[0087] The wireless communication circuit 1120 may include a radio frequency (RF) transceiver circuit 1121 formed by one or more integrated circuits, power amplifier circuits, low noise input amplifiers, passive RF components, and other circuits for processing RF wireless signals. For example, the RF transceiver circuit 1121 may include a cellular transceiver circuit 1122 for processing wireless communications in cellular frequency bands (e.g., bands of 600 MHz, 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz and 2100 MHz data bands). The RF transceiver circuit 1121 may also include a Wi-Fi and Bluetooth transceiver circuit 1123, which processes the 2.4 GHz to 2.48 GHz, 5.15 GHz to 5.85 GHz, and 5.925 GHz to 7.125 GHz frequency bands for Wi-Fi 6E / 7 communications, and the 2.4 GHz Bluetooth communication band. If desired, the wireless communication circuit 1120 may include circuits for other short-range and long-range wireless links. For example, wireless communications circuitry 1120 may include a global positioning system (GPS) receiver device, wireless circuitry for receiving radio and television signals, paging circuitry, and the like.

[0088] The RF transceiver circuit 1121 may be implemented using one or more integrated circuits and associated components (e.g., switching circuits, matching network components (e.g., discrete inductors, capacitors, and resistors), and integrated circuit filter networks, etc.). These devices may be mounted on any suitable mounting structure. By one suitable arrangement, the transceiver integrated circuit may be mounted on a printed circuit board.

[0089] Wireless communications circuitry 1120 may include an antenna assembly 1124, such as described above with reference to Figure 1 , Figure 2 , Figure 3 , Figures 4a to 4e and Figures 7 to 9 The antenna assembly described herein or its variations. As described above, the antenna assembly 1124 can be a multi-band antenna. For example, a multi-band antenna can be used to cover multiple cellular phone communication bands, Wi-Fi communication bands, Bluetooth communication bands, etc.

[0090] In addition, the wireless communication circuit 1120 may also include other circuits for implementing different communication-related functions. For example, the wireless communication circuit 1120 may include a proximity sensing circuit (not shown). In addition, the wireless communication circuit 1120 may also include a power adjustment circuit (not shown) for adjusting the power of the RF transceiver circuit 1121 in response to the detection result from the proximity sensing circuit.

[0091] The connections within RF circuit 1121 may include any suitable conductive paths over which radio frequency signals may be transmitted, including transmission line path structures, such as coaxial cables, microstrip transmission lines, stripline transmission lines, and the like.

[0092] During data transmission operations, control signals from processor 1200 may be transmitted to RF circuit 1121 to adjust output power in real time. For example, when data is being transmitted, RF circuit 1121 may be directed to increase or decrease the power level of the radio frequency signal provided to antenna assembly 1124 via the transmission line to ensure that regulatory limits on electromagnetic radiation emissions are met.

[0093] If the proximity sensing circuit has not detected the presence of an external object, power can be provided at a normal power controlled level. However, if the proximity measurement indicates that a user's finger or other body part or other external object is in close proximity to the antenna assembly (e.g., within a range of less than 20 mm, within a range of less than 15 mm, within a range of less than 10 mm, etc.), the processor 1200 can respond accordingly by directing the RF circuit 1121 to transmit a radio frequency signal through the transmission line at a reduced power.

[0094] In addition to the components shown, the electronic device 1000 may also include other components for different functions. For example, the electronic device 1000 generally includes a housing that can be formed to serve as a ground plane for the antenna assembly 1124.

[0095] Other details of the electronic device 1000 may refer to the aforementioned description of the antenna assembly according to the embodiment of the present disclosure, which will not be repeated here.

[0096] The embodiments of the present disclosure are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. Therefore, one embodiment can refer to other embodiments of the same or similar parts. Since the method disclosed in the embodiment corresponds to the device disclosed in the embodiment, the description of the method is simple and can refer to the relevant parts of the device.

[0097] Based on the description of the disclosed embodiments, those skilled in the art may implement or use the present disclosure. Various modifications to these embodiments may be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments described herein, but rather identifies the widest scope based on the principles and novel features disclosed in the present disclosure.

Claims

1. An antenna assembly, comprising an antenna radiator, wherein: The antenna radiator comprises: a grounding element configured to be electrically connected to the ground plane at a grounding point; and a feeding element configured to be electrically connected to the radio signal circuit at a feeding point, The ground element is physically separated and disconnected from the feed element, and at least a portion of the feed element extends substantially parallel to at least a portion of the ground element to provide capacitive coupling between the feed element and the ground element during operation of the antenna assembly.

2. The antenna assembly according to claim 1, further comprising: a first matching element configured to connect the ground element and the ground plane at the ground point; and a second matching element configured to connect the feeding element and the radio signal circuit at the feeding point.

3. The antenna assembly according to claim 2, wherein: The first matching element extends substantially parallel to the second matching element, and a length of the first matching element is substantially the same as a length of the second matching element.

4. The antenna assembly according to claim 2, wherein: The first matching element extends substantially parallel to the second matching element, and a length of the first matching element is shorter than a length of the second matching element.

5. The antenna assembly according to claim 2, wherein: An angle greater than 0 degree and less than 30 degrees is formed between the first matching element and the second matching element.

6. The antenna assembly of claim 2, further comprising a dielectric carrier for supporting the antenna radiator.

7. The antenna assembly according to claim 6, wherein: The antenna radiator is planar.

8. The antenna assembly according to claim 7, wherein: The antenna radiator is arranged in the same plane as the ground plane.

9. The antenna assembly according to claim 7, wherein: The antenna radiator is arranged in a plane spaced apart from and substantially parallel to the ground plane.

10. The antenna assembly according to claim 9, wherein: The first matching element and the second matching element are arranged in a plane perpendicular to the ground plane.

11. The antenna assembly according to claim 9, wherein: The ground point is located in a central portion of the ground plane, and the antenna radiator protrudes outward relative to the ground point, with at least a portion of the antenna radiator facing the ground plane.

12. The antenna assembly according to claim 9, wherein: The grounding point is located at an edge of the ground plane, and the antenna radiator protrudes into the inside of the ground plane relative to the grounding point, with at least a portion of the antenna radiator facing the ground plane.

13. The antenna assembly according to claim 9, wherein: The grounding point is located at an edge of the ground plane, and the antenna radiator protrudes outside the ground plane relative to the grounding point, and no part of the antenna radiator faces the ground plane.

14. The antenna assembly according to any one of claims 1 to 13, further comprising a first branch, wherein: The first branch extends from the ground element and has an open end.

15. The antenna assembly according to any one of claims 1 to 14, further comprising a second branch, wherein: The second branch extends from the feeding element and has an open end.

16. The antenna assembly according to claim 15, further comprising a third branch, wherein: The third branch extends from the feeding element and has an open end, and the third branch extends in a direction perpendicular to the second branch.

17. The antenna assembly according to any one of claims 1 to 16, wherein: The antenna assembly is a multi-band antenna assembly.

18. The antenna assembly according to any one of claims 1 to 17, wherein: The ground plane and the antenna radiator are formed on different layers of a printed circuit board.

19. An electronic device comprising the antenna assembly according to any one of claims 1 to 18.

20. The electronic device according to claim 19, further comprising a housing, wherein The housing is used as the ground plane.

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