Antenna assembly and electronic equipment

By combining energy storage circuits in the antenna assembly, the instantaneous circuit breaking problem caused by switching in the prior art is solved, and the stable radiation performance of multi-band coverage of electronic equipment is achieved.

CN222896834UActive Publication Date: 2025-05-23BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202421711431.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-05-23
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

When the prior art realizes multi-band coverage of electronic devices, different circuit tuning is switched through a single feed power switch, resulting in a momentary circuit breaker during the switch switching process, affecting the field measurement network and user experience.

Method used

An antenna assembly is designed to ensure that the first feeding power supply is always electrically connected to the first antenna by connecting it in parallel with the energy storage circuit, so as to avoid circuit breakage during the instant of switching of the matching circuit.

Benefits of technology

It effectively avoids the impact of switching losses on the electric field measurement network and user experience during the switching process, and ensures the stable radiation performance of the antenna.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an antenna assembly and electronic equipment, and the antenna assembly comprises a first antenna. And a first feed source. And the first feed power supply is electrically connected with the first antenna through the matching circuit, and the matching circuit is used for adjusting the radiation frequency band of the first antenna. And the energy storage circuit is connected with at least one branch circuit of the matching circuit in parallel. The matching circuit realizes the adjustment of the radiation frequency band through the on-off of the switch control circuit, and the energy storage circuit is connected with the matching circuit in parallel, so that the first feed power supply not only can be electrically connected with the first antenna through the matching circuit, but also can be electrically connected with the first antenna through the energy storage circuit all the time, and therefore, at the switching moment of the matching circuit, the radiation frequency band can be adjusted. As the first feed power supply is still electrically connected with the first antenna through the energy storage circuit, the first feed power supply and the first antenna are not in a disconnected state, and the influence on an electric field measurement standing network and user experience caused by switching loss in the switching process is effectively avoided.
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Description

Technical Field

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

[0002] In order to achieve multi-band coverage of electronic equipment and save matching components, a single power supply is often used to switch different circuits through a switch to achieve tuning. However, this tuning method will cause instantaneous disconnection during the switching process. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides an antenna assembly and an electronic device.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an antenna assembly, including:

[0005] First antenna;

[0006] A first power feed source;

[0007] a matching circuit, wherein the first feed source is electrically connected to the first antenna through the matching circuit, and the matching circuit is used to adjust the frequency band of the first antenna;

[0008] An energy storage circuit is connected in parallel with at least one branch of the matching circuit.

[0009] In some embodiments, the energy storage circuit includes an inductive element;

[0010] A first end of the inductor element is electrically connected to the first feeding source, and a second end of the inductor element is electrically connected to the first antenna.

[0011] In some embodiments, a current value in the inductor element is smaller than a current value in the matching circuit.

[0012] In some embodiments, the matching circuit includes a switch circuit and a first adjustment circuit;

[0013] The switch circuit is connected in series with the first regulating circuit, and the switch circuit is used to control the first regulating circuit to adjust the frequency band of the first antenna.

[0014] The energy storage circuit is connected in parallel with the switch circuit.

[0015] In some embodiments, the tank circuit includes a capacitive element;

[0016] The first regulating circuit comprises a regulating element, a first end of the regulating element is electrically connected to the first feeding power source, a second end of the regulating element is electrically connected to the first end of the switch circuit, and there are a plurality of regulating elements, which are connected in parallel;

[0017] The first end of the capacitor element is electrically connected to the second end of at least one of the adjustment elements, and the second end of the capacitor element is electrically connected to the second end of the switch circuit.

[0018] In some embodiments, the plurality of regulating elements of the first regulating circuit include:

[0019] A first adjustment capacitor and a second adjustment capacitor;

[0020] The first end of the first regulating capacitor is electrically connected to the first feeding power source, the second end of the first regulating capacitor is electrically connected to the first end of the switch circuit, and the first end of the capacitive element is electrically connected to the second end of the first regulating capacitor;

[0021] A first end of the second regulating capacitor is electrically connected to the first feeding power source, and a second end of the second regulating capacitor is electrically connected to a first end of the switch circuit;

[0022] The capacitance value of the first adjustment capacitor is greater than or less than the capacitance value of the second adjustment capacitor.

[0023] In some embodiments, further comprising a grounding circuit;

[0024] The first feeding power source is electrically connected to a first end of the grounding circuit, and a second end of the grounding circuit is grounded.

[0025] In some embodiments, it also includes:

[0026] Second antenna;

[0027] A second feed source, wherein the second feed source is electrically connected to the matching circuit through the second antenna, the matching circuit is grounded, and the matching circuit is used to adjust the radiation frequency band of the second antenna.

[0028] In some embodiments, the matching circuit further includes a second adjustment circuit;

[0029] A first end of the second regulating circuit is electrically connected to the switch circuit, a second end of the second regulating circuit is grounded, and the switch circuit is used to control the second regulating circuit to adjust the radiation frequency band of the second antenna.

[0030] In some embodiments, the second regulating circuit includes:

[0031] A third adjustment capacitor and a fourth adjustment capacitor;

[0032] The first end of the third regulating capacitor and the first end of the fourth regulating capacitor are both electrically connected to the switching circuit, the second end of the third regulating capacitor and the second end of the fourth regulating capacitor are both grounded, and the capacitance value of the third regulating capacitor is greater than or less than the capacitance value of the fourth regulating capacitor.

[0033] According to a second aspect of an embodiment of the present disclosure, an electronic device is provided, comprising the antenna assembly described in any one of the first aspects above.

[0034] In some embodiments, the electronic device includes a base side and a folding side;

[0035] The base side is hinged to the folding side, the base side is provided with a first antenna, the first antenna is used to radiate electrical signals of at least three frequency bands outwardly, and the folding side is provided with a second antenna, the second antenna is used to radiate electrical signals of at least one frequency band outwardly.

[0036] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: wherein, the first feed source radiates signals outwardly through the first antenna, and a matching circuit is set so that the first antenna can radiate signals of different frequency bands outwardly, and the matching circuit adjusts the radiation frequency band by switching the circuit on and off. Since the energy storage circuit is connected in parallel with the matching circuit, the first feed source can not only be electrically connected to the first antenna through the matching circuit, but can also be always electrically connected to the first antenna through the energy storage circuit. Therefore, at the moment when the matching circuit is switched, since the first feed source is still electrically connected to the first antenna through the energy storage circuit, the first feed source and the first antenna will not be in a disconnected state, which effectively avoids the influence of switching loss on the electric field measurement network and user experience during the switching process.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0039] Figure 1 It is a structural schematic diagram of an antenna assembly in the related art.

[0040] Figure 2 It is a schematic structural diagram of an antenna assembly according to an exemplary embodiment.

[0041] Figure 3 is a schematic structural diagram of an antenna assembly according to another exemplary embodiment.

[0042] Reference numerals:

[0043] 1. First feed source; 2. Energy storage circuit; 3. Matching circuit; 4. Antenna; 5. Grounding circuit;

[0044] 21. Inductor component; 22. Capacitor component;

[0045] 31. First regulating circuit; 32. Second regulating circuit; 33. Switching circuit;

[0046] 311, a first adjustment capacitor; 312, a second adjustment capacitor; 321, a third adjustment capacitor; 322, a fourth adjustment capacitor; 41, a first antenna. DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0048] The electronic device involved in the present disclosure may also be referred to as a terminal, terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to users. For example, the electronic device may be a handheld device with a wireless connection function, a vehicle-mounted device, etc. At present, some examples of electronic devices are: a smart phone (Mobile Phone), a pocket computer (PPC), a handheld computer, a personal digital assistant (PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the electronic device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the electronic device.

[0049] In order to achieve multi-band coverage of electronic equipment and save matching components, a single feed source is often used to switch different circuits through a switch to achieve tuning. However, this tuning method will cause instantaneous disconnection during the switch switching process, affecting the field measurement network and user experience.

[0050] For example, Figure 1 is a schematic diagram of the structure of an antenna assembly in the related art, such as Figure 1As shown, taking the antenna scheme of a folding screen electronic device as an example, the antenna scheme of the folding screen electronic device in the related art has evolved from the original dual low-frequency design to a four-low-frequency design. Due to the internal space limitation of the electronic device, the four-low-frequency design consists of a main standard low-frequency on the folding side of the folding screen electronic device and three low frequencies on the base side of the folding screen electronic device. However, when the folding screen electronic device is in a closed state, it is inevitable that the main standard low-frequency antenna on the folding side and the low-frequency antenna on the base side are too close, which in turn affects the performance of the main standard antenna. Therefore, two matching positions need to be reserved in the related art for tuning the main standard antenna. Therefore, only two channels are left for debugging the bottom low-frequency antenna. In order to save matching devices and reduce costs, it is necessary to use two channels to adjust three states, that is, a single feed power source (first feed power source 1) switches the connectivity of the first adjustment capacitor 311 and the second adjustment capacitor 312 through the switching circuit 33 to achieve tuning. For example, when only the first adjustment capacitor 311 is connected, it is in the first state; when only the second adjustment capacitor 312 is connected, it is in the second state; when the first adjustment capacitor 311 and the second adjustment capacitor 312 are connected at the same time, it is in the second state. When switching from the first state to the second state, the switching circuit 33 switches at the moment, and the first feed power source 1 and the antenna 4 are in a disconnected state, which will cause the field measurement network or user use to fail to switch to the second state in time, affecting the field measurement network and user experience.

[0051] In order to solve the above technical problems, the present disclosure provides an antenna assembly and an electronic device. By setting an energy storage circuit 2, when the switch circuit 33 switches its state and causes a circuit break, the first feed power source 1 can be electrically connected to the antenna through the energy storage circuit 2, so that the first feed power source 1 is always electrically connected to the antenna, avoiding the impact of the opening light loss on the field measurement network and user experience.

[0052] Figure 2 is a schematic structural diagram of an antenna assembly according to an exemplary embodiment. Figure 3 is a schematic structural diagram of an antenna assembly according to another exemplary embodiment. Figure 2 and Figure 3 As shown, the antenna assembly includes: a first antenna 41. A first feed source 1. A matching circuit 3, wherein the first feed source 1 is electrically connected to the first antenna 41 through the matching circuit 3, and the matching circuit 3 is used to adjust the radiation frequency band of the first antenna 41. An energy storage circuit 2, wherein the energy storage circuit 2 is connected in parallel with at least one branch of the matching circuit 3.

[0053] Among them, the first feed source 1 radiates signals outwardly through the first antenna 41, and the matching circuit 3 is set to enable the first antenna 41 to radiate signals of different frequency bands outwardly. The matching circuit 3 adjusts the radiation frequency band by switching the circuit on and off. Since the energy storage circuit 2 is connected in parallel with the matching circuit 3, the first feed source 1 can not only be electrically connected to the first antenna 41 through the matching circuit 3, but can also always be electrically connected to the first antenna 41 through the energy storage circuit 2. Therefore, at the moment when the matching circuit 3 is switched, since the first feed source 1 is still electrically connected to the first antenna 41 through the energy storage circuit 2, the first feed source 1 and the first antenna 41 will not be in a disconnected state, which effectively avoids the influence of switching loss on the electric field measurement network and user experience during the switching process.

[0054] In some embodiments, Figure 2 As shown, the energy storage circuit 2 includes an inductor element 21. The first end of the inductor element 21 is electrically connected to the second end of the first feed source 1, and the second end of the inductor element 21 is electrically connected to the first antenna 41. That is, the first feed source 1, the inductor element 21 and the first antenna 41 are connected in series in sequence. When the first antenna 41 is working, the current of the first feed source 1 can always be fed into the first antenna 41 through the inductor element 21 without being affected by the matching circuit 3.

[0055] The first end of each component or each circuit is used to input the electrical signal sent by the first feed source 1 , and the second end of each component or each circuit is used to output the electrical signal sent by the first feed source 1 .

[0056] In some embodiments, during the operation of the first antenna 41, when the radiation frequency band of the first antenna 41 is adjusted by the matching circuit 3, since the inductor element 21 is arranged in parallel with the matching circuit 3, the current signal of the first feed source 1 flowing through the inductor element 21 will have a certain influence on the current signal in the matching circuit 3. Therefore, the current value in the inductor element 21 is configured to be smaller than the current value in the matching circuit 3, thereby reducing the influence of the current signal of the inductor element 21 on the current signal in the matching circuit 3.

[0057] In some embodiments, by setting the inductor element 21 with a higher inductance value, the current value in the inductor element 21 is reduced. For example, the inductance value of the inductor element 21 is greater than 50 nH and less than 150 nH.

[0058] For example, the inductance value of the inductor element 21 is 100 nH.

[0059] In some embodiments, Figure 2 and Figure 3 As shown, the matching circuit 3 includes a switch circuit 33 and a first adjustment circuit 31. The switch circuit 33 is connected in series with the first adjustment circuit 31, and the switch circuit 33 is used to control the first adjustment circuit 31 to adjust the frequency band of the first antenna 41.

[0060] That is, the switch circuit 33 is used to control the impedance of the first adjustment circuit 31 , and adjust the impedance on the path from the first feeding source 1 to the first antenna 41 to adjust the radiation frequency band of the first antenna 41 .

[0061] In some embodiments, Figure 2 and Figure 3 As shown, the first regulating circuit 31 includes a plurality of regulating elements connected in parallel. The switch circuit 33 controls the connection and disconnection of each regulating unit to adjust the impedance on the path from the first feeding source 1 to the first antenna 41 .

[0062] In some embodiments, the plurality of regulating elements of the first regulating circuit 31 include a first regulating capacitor 311 and a second regulating capacitor 312 .

[0063] The first regulating capacitor 311 is connected in parallel with the second regulating capacitor 312, and the capacitance value of the first regulating capacitor 311 is greater than or less than the capacitance value of the second regulating capacitor 312. Thus, the switch circuit 33 can be used to control the first regulating capacitor 311 to be connected alone, the second regulating capacitor 312 to be connected alone, or the first regulating capacitor 311 and the second regulating capacitor 312 to be connected at the same time, so as to achieve regulation of three different frequency bands.

[0064] For example, if Figure 2 As shown, the first regulating capacitor 311 and the second regulating capacitor 312 are arranged in parallel, the first feed source 1 is electrically connected to the switch circuit 33 through the first regulating capacitor 311 and the second regulating capacitor 312 connected in parallel, the first end of the inductor element 21 is electrically connected to the first feed source 1, and the second end of the inductor element 21 is electrically connected to the switch circuit 33. Among them, the capacitance value of the first regulating capacitor 311 is 4.7PF, the capacitance value of the second regulating capacitor 312 is 3.6PF, and the inductance value of the inductor element 21 is 100nH. The switch circuit 33 is used to control the first regulating capacitor 311 to be connected alone, the second regulating capacitor 312 to be connected alone, or the first regulating capacitor 311 and the second regulating capacitor 312 to be connected at the same time. When the first regulating capacitor 311 is connected alone, that is, after the first feed source 1 is connected in series with the first regulating capacitor 311, the B8 (900MHz) frequency band signal is radiated outward through the first antenna 41. When the second regulating capacitor 312 is connected alone, that is, after the first feed source 1 and the second regulating capacitor 312 are connected in series, the B5 (800MHz to 850MHz) frequency band signal is radiated outwardly through the first antenna 41. When the first regulating capacitor 311 and the second regulating capacitor 312 are connected at the same time, that is, after the first feed source 1 and the parallel first regulating capacitor 311 and the second regulating capacitor 312 are connected in series, the B28 (700Mhz) frequency band signal is radiated outwardly through the first antenna 41.

[0065] Among them, the switch circuit 33 controls the first adjustment capacitor 311 to be connected alone, the second adjustment capacitor 312 to be connected alone, or the first adjustment capacitor 311 and the second adjustment capacitor 312 to be connected at the same time. During normal operation, the first feed source 1 is electrically connected to the first antenna 41 through the inductor element 21 at the same time. Since the current flowing to the first antenna 41 through the inductor element 21 is small, it will not affect the normal operation of the first antenna 41. When the switch circuit 33 controls the first adjustment capacitor 311 to be connected alone and switches to the second adjustment capacitor 312 to be connected alone, at the moment when the switch circuit 33 switches, the path of the first feed source 1 electrically connected to the first antenna 41 through the matching circuit 3 is in a disconnected state. At this time, since the first feed source 1 is still electrically connected to the first antenna 41 through the inductor element 21, the first feed source 1 and the first antenna 41 will not be in a disconnected state.

[0066] By using any of the antenna assemblies described above, the influence of switching loss on the electric field measurement network and user experience during the switching process is effectively avoided. During the instantaneous switching process, although there is no disconnection between the first feed source 1 and the first antenna 41, due to the large inductance value of the inductor element 21, the feeding current value of the first feed source 1 to the first antenna 41 through the inductor element 21 is small, which leads to low radiation efficiency of the first antenna 41.

[0067] Therefore, in some embodiments, Figure 3 As shown, the energy tank circuit 2 is connected in parallel with the switch circuit 33. That is, the first end of the energy tank circuit 2 is electrically connected to the second end of the first regulating circuit 31, and the second end of the energy tank circuit 2 is electrically connected to the second end of the switch circuit 33. When the switch circuit 33 controls the switching of the regulating element, the first feed source 1 can be electrically connected to the first antenna 41 through the first regulating circuit 31 and the energy tank circuit 2, and the feeding current value of the first feed source 1 to the first antenna 41 can be larger.

[0068] In some embodiments, Figure 3 As shown, the energy storage circuit 2 includes a capacitor element 22. The capacitor element 22 is connected in series with at least one adjustment element. Among them, the first adjustment circuit 31 includes an adjustment element, the first end of the adjustment element is electrically connected to the second end of the first feed source 1, and the second end of the adjustment element is electrically connected to the first end of the switch circuit 33. There are multiple adjustment elements, and the multiple adjustment elements are connected in parallel. The first end of the capacitor element 22 is electrically connected to the second end of at least one adjustment element, and the second end of the capacitor element 22 is electrically connected to the second end of the switch circuit 33. The first feed source 1 can feed power to the first antenna 41 through the adjustment element and the capacitor element 22 without being affected by the switch circuit 33.

[0069] In some embodiments, the capacitance of the capacitor 22 is greater than 1PF and less than 20PF.

[0070] For example, as Figure 3 shown, the first adjustment capacitor 311 and the second adjustment capacitor 312 are arranged in parallel. The first feed power supply 1 is electrically connected to the switching circuit 33 through the parallel-connected first adjustment capacitor 311 and second adjustment capacitor 312. The first end of the capacitor element 22 is electrically connected to the second end of the first adjustment capacitor 311, and the second end of the capacitor element 22 is electrically connected to the second end of the switching circuit 33. Among them, the capacitance value of the first adjustment capacitor 311 is 6.0 PF, the capacitance value of the second adjustment capacitor 312 is 4.5 PF, and the capacitance value of the capacitor element 22 is 7.9 PF. When the switching circuit 33 controls the first adjustment capacitor 311 and the capacitor element 22 to be in series, the first antenna 41 radiates signals in the B5 (800 MHz to 850 MHz) frequency band outward. When the switching circuit 33 controls the second adjustment capacitor 312 to be separately connected, the first antenna 41 radiates signals in the B8 (900 MHz) frequency band outward. When the switching circuit 33 controls the series-connected first adjustment capacitor 311 and capacitor element 22 to be connected in parallel to the second adjustment capacitor 312, the first antenna 41 radiates signals in the B28 (700 MHz) frequency band outward. Compared with the related technology, the antenna radiation efficiency is increased by more than 0.5 dB.

[0071] In some embodiments, as Figure 2 and Figure 3 shown, a grounding circuit 5 is further included. The second end of the first feed power supply 1 is electrically connected to the first end of the grounding circuit 5, and the second end of the grounding circuit 5 is grounded. By setting the grounding circuit 5, conduction interference can be effectively suppressed.

[0072] Among them, one end of the grounding circuit 5 is electrically connected to the first feed power supply 1, and the other end of the grounding circuit 5 is grounded. The grounding circuit 5 is provided with an inductor of 3 nH.

[0073] The embodiments of the present disclosure can be adapted to foldable screen electronic devices. Therefore, the embodiments of the present disclosure further include a second antenna. A second feed power supply, the second feed power supply is electrically connected to the matching circuit 3 through the second antenna, and the matching circuit 3 is grounded. The matching circuit 3 is used to adjust the radiation frequency band of the second antenna.

[0074] Among them, the foldable screen electronic device has a folding side and a base side. The first antenna 41 is arranged on the base side, and the second antenna is arranged on the folding side. The second antenna can be a main standard low-frequency antenna. The first feed power supply 1 is electrically connected to the first antenna 41 through the matching circuit 3, and the matching circuit 3 is used to control the radiation frequency band adjustment of the first antenna 41. The second feed power supply is grounded after passing through the second antenna and the matching circuit 3 in sequence, and the matching circuit 3 is used to control the radiation frequency band adjustment of the second antenna.

[0075] In order to avoid interference caused by the folding side and the base side being too close to each other when the folding screen electronic device is closed, the second antenna is too close to the first antenna 41. Therefore, the matching circuit 3 also includes a second adjustment circuit 32. One end of the second adjustment circuit 32 is electrically connected to the switch circuit 33, and the other end of the second adjustment circuit 32 is grounded. The switch circuit 33 is used to control the second adjustment circuit 32 to adjust the radiation frequency band of the second antenna. By setting the second adjustment circuit 32 to tune the second antenna separately, it is ensured that the performance of the second antenna is not affected when the second antenna is too close to the first antenna 41.

[0076] In some embodiments, Figure 2 and Figure 3 As shown, the second adjustment circuit 32 includes: a third adjustment capacitor 321 and a fourth adjustment capacitor 322. The third adjustment capacitor 321 and the fourth adjustment capacitor 322 are arranged in parallel, and the capacitance value of the third adjustment capacitor 321 is greater than or less than the capacitance value of the fourth adjustment capacitor 322. Among them, the first end of the third adjustment capacitor 321 and the first end of the fourth adjustment capacitor 322 are both electrically connected to the switch circuit 33, and the second end of the third adjustment capacitor 321 and the second end of the fourth adjustment capacitor 322 are both grounded. The switch circuit 33 realizes the tuning of the second antenna by controlling the connection or disconnection of the third adjustment capacitor 321 and the fourth adjustment capacitor 322.

[0077] For example, if Figure 2 and Figure 3 As shown, the third regulating capacitor 321 and the fourth regulating capacitor 322 are arranged in parallel, the capacitance value of the third regulating capacitor 321 is 5.0PF, and the capacitance value of the fourth regulating capacitor 322 is 7.5PF.

[0078] Based on the same concept, an embodiment of the present disclosure further provides an electronic device, comprising any one of the antenna assemblies described above.

[0079] In some embodiments, the electronic device is a folding screen electronic device, including a base side and a folding side. Among them, the first antenna 41 is arranged on the base side, and the first antenna 41 is used to radiate electrical signals of at least three frequency bands outwardly, and the second antenna is arranged on the folding side. The second antenna can be a main standard antenna, and the second antenna is used to radiate electrical signals of at least one frequency band outwardly.

[0080] In some embodiments, the electronic device realizes quad low-frequency communication through the first antenna 41 and the second antenna. In order to avoid interference caused by the second antenna being too close to the first antenna 41 when the folding screen electronic device is closed due to the folding side and the base side being too close, such as Figure 2 and Figure 3As shown, two channels in the switch circuit 33 are used for tuning the second antenna so that its radiation efficiency always meets the communication of one frequency band. The other two channels in the switch circuit 33 are used to adjust the communication of the first antenna 41 switching three channels, and the energy storage circuit 2 is set to avoid switching loss during the switching process.

[0081] It is to be understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0082] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0083] It will be further understood that the terms “center”, “longitudinal”, “lateral”, “front”, “back”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0084] It can be further understood that, unless otherwise specified, “connection” includes a direct connection without other components between the two, and also includes an indirect connection with other components between the two.

[0085] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0086] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0087] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that: include: First antenna; A first power feed source; a matching circuit, wherein the first feed source is electrically connected to the first antenna through the matching circuit, and the matching circuit is used to adjust the frequency band of the first antenna; An energy storage circuit is connected in parallel with at least one branch of the matching circuit.

2. The antenna assembly according to claim 1, characterized in that: The energy storage circuit includes an inductor element; A first end of the inductor element is electrically connected to the first feeding source, and a second end of the inductor element is electrically connected to the first antenna.

3. The antenna assembly according to claim 2, characterized in that: The current value in the inductor element is smaller than the current value in the matching circuit.

4. The antenna assembly according to claim 1, characterized in that: The matching circuit includes a switch circuit and a first regulating circuit; The switch circuit is connected in series with the first adjustment circuit, and the switch circuit is used to control the first adjustment circuit to adjust the frequency band of the first antenna; The energy storage circuit is connected in parallel with the switch circuit.

5. The antenna assembly according to claim 4, characterized in that: The energy storage circuit includes a capacitive element; The first regulating circuit comprises a regulating element, a first end of the regulating element is electrically connected to the first feeding power source, a second end of the regulating element is electrically connected to the first end of the switch circuit, and there are a plurality of regulating elements, which are connected in parallel; The first end of the capacitor element is electrically connected to the second end of at least one of the adjustment elements, and the second end of the capacitor element is electrically connected to the second end of the switch circuit.

6. The antenna assembly according to claim 5, characterized in that: The plurality of regulating elements of the first regulating circuit include: A first adjustment capacitor and a second adjustment capacitor; The first end of the first regulating capacitor is electrically connected to the first feeding power source, the second end of the first regulating capacitor is electrically connected to the first end of the switch circuit, and the first end of the capacitive element is electrically connected to the second end of the first regulating capacitor; A first end of the second regulating capacitor is electrically connected to the first feeding power source, and a second end of the second regulating capacitor is electrically connected to a first end of the switch circuit; The capacitance value of the first adjustment capacitor is greater than or less than the capacitance value of the second adjustment capacitor.

7. The antenna assembly according to claim 4, characterized in that: Also includes grounding circuits; The first feeding power source is electrically connected to a first end of the grounding circuit, and a second end of the grounding circuit is grounded.

8. The antenna assembly according to any one of claims 4 to 7, characterized in that: Also includes: Second antenna; A second feed source, wherein the second feed source is electrically connected to the matching circuit through the second antenna, the matching circuit is grounded, and the matching circuit is used to adjust the radiation frequency band of the second antenna.

9. The antenna assembly according to claim 8, characterized in that: The matching circuit also includes a second adjustment circuit; A first end of the second regulating circuit is electrically connected to the switch circuit, a second end of the second regulating circuit is grounded, and the switch circuit is used to control the second regulating circuit to adjust the radiation frequency band of the second antenna.

10. The antenna assembly according to claim 9, characterized in that: The second regulating circuit comprises: A third adjustment capacitor and a fourth adjustment capacitor; The first end of the third regulating capacitor and the first end of the fourth regulating capacitor are both electrically connected to the switching circuit, the second end of the third regulating capacitor and the second end of the fourth regulating capacitor are both grounded, and the capacitance value of the third regulating capacitor is greater than or less than the capacitance value of the fourth regulating capacitor.

11. An electronic device, characterized in that: Comprising the antenna assembly as claimed in any one of claims 1 to 10.

12. The electronic device according to claim 11, characterized in that: including a base side and a folded side; The base side is hinged to the folding side, the base side is provided with a first antenna, the first antenna is used to radiate electrical signals of at least three frequency bands outwardly, and the folding side is provided with a second antenna, the second antenna is used to radiate electrical signals of at least one frequency band outwardly.