Antenna device and electronic device

Abstract

The antenna device and the electronic equipment, the first end of the first radiator of the antenna device is grounded, the second end is provided with a first coupling gap between the first end and the third end of the second radiator, and the fourth end of the second radiator is grounded; the first feed source is electrically connected to the first feed point between the first end and the second end, and the first matching circuit is electrically connected to the electrical connection point between the third end and the fourth end; the first excitation current provided by the first feed source is short-circuited to the ground through the first matching circuit, and flows to the same in the first conductor section between the first feed point and the second end and the second conductor section between the electrical connection point and the third end to make the first conductor section and the second conductor section work at the first resonance, and the first excitation current also flows in the opposite direction in the first conductor section and the second conductor section to make the first conductor section and the second conductor section work at the second resonance. Based on this, the antenna device has a wider bandwidth and is lower in cost.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna device and electronic device. Background Technology

[0002] With the development of communication technology, electronic devices such as smartphones are able to perform more and more functions, and their communication modes are becoming more diversified. Understandably, each communication mode of an electronic device requires a corresponding antenna to support it.

[0003] However, with the development of electronic technology, electronic devices are becoming smaller and thinner, and the internal space of electronic devices is also getting smaller and smaller. Therefore, how to reasonably set up the antenna has become a problem. Summary of the Invention

[0004] This application provides an antenna device and an electronic device, the antenna device being capable of miniaturization.

[0005] In a first aspect, this application provides an antenna device, comprising:

[0006] The first radiator includes a first end and a second end, and a first feed point disposed between the first end and the second end, wherein the first end is grounded;

[0007] The first feed source is electrically connected to the first feed point and is used to provide the first excitation current;

[0008] The second radiator includes a third end and a fourth end, and an electrical connection point disposed between the third end and the fourth end. A first coupling gap is provided between the third end and the second end. The third end is located between the second end and the fourth end, and the fourth end is grounded.

[0009] A first matching circuit is electrically connected to the electrical connection point. The first excitation current is coupled to the second radiator via the first coupling gap and then short-circuited back to ground via the first matching circuit.

[0010] The first excitation current flows in the same direction on the first conductor segment between the first feed point and the second terminal and on the second conductor segment between the electrical connection point and the third terminal, and excites the first conductor segment and the second conductor segment to work together at the first resonance; and / or,

[0011] The first excitation current flows in opposite directions in the first conductor segment and the second conductor segment, and excites the first conductor segment and the second conductor segment to work together at the second resonance.

[0012] Secondly, this application also provides an electronic device including the antenna device described above.

[0013] Thirdly, this application also provides an electronic device, including the antenna device as described above; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator and the second radiator are disposed relative to the long frame, a portion of the third radiator is disposed relative to the long frame, and another portion of the third radiator is disposed relative to the short frame.

[0014] Fourthly, this application also provides an electronic device, including the antenna device as described above; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator, the second radiator and the conductor connecting segment are disposed relative to the long frame, a portion of the third radiator is disposed relative to the long frame and another portion of the third radiator is disposed relative to the short frame.

[0015] Fifthly, this application also provides an electronic device, including the antenna device as described above; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator and the second radiator are disposed relative to the long frame, and the fourth radiator is disposed relative to the short frame.

[0016] The antenna device and electronic device of this application include an antenna device in which a first end of a first radiator is grounded, a first coupling gap is provided between a second end of the first radiator and a third end of the second radiator, and a fourth end of the second radiator is grounded; a first feed source is electrically connected to a first feed point between the first and second ends, and a first matching circuit is electrically connected to an electrical connection point between the third and fourth ends; the first feed source can provide a first excitation current and a first excitation current to the first radiator. The first excitation current provided by the first feed source is short-circuited back to ground through the first matching circuit, and flows in the same direction on a first conductor segment between the first feed point and the second end and a second conductor segment between the electrical connection point and the third end, so that the first and second conductor segments operate at a first resonance; the first excitation current also flows in opposite directions on the first and second conductor segments, so that the first and second conductor segments operate at a second resonance. Based on this, on the one hand, the antenna device can operate at two resonances without switching, which can both expand the bandwidth of the antenna device and improve its transmission performance, and reduce the cost of switching; on the other hand, the first and second conductor segments are multiplexed, allowing for miniaturized design of the antenna device, and making it easier to assemble the antenna device into other electronic devices and other components. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a first structure of the antenna device provided in an embodiment of this application.

[0019] Figure 2 for Figure 1 The diagram shows an equivalent circuit of the antenna device.

[0020] Figure 3 for Figure 1 The diagram shows the first type of current for the antenna device.

[0021] Figure 4 for Figure 1 The diagram shows the second type of current for the antenna device.

[0022] Figure 5 for Figure 1 The diagram shows a schematic of an S11 parameter curve for the antenna device.

[0023] Figure 6 This is a schematic diagram of a second structure of the antenna device provided in an embodiment of this application.

[0024] Figure 7 for Figure 6 The diagram shows a schematic of one structure of the second matching circuit.

[0025] Figure 8 This is a schematic diagram of a third structure of the antenna device provided in the embodiments of this application.

[0026] Figure 9 for Figure 8 The diagram shows an equivalent circuit of the antenna device.

[0027] Figure 10 for Figure 8 The diagram shows the first type of current for the antenna device.

[0028] Figure 11 for Figure 8 The diagram shows the second type of current for the antenna device.

[0029] Figure 12 for Figure 8 The diagram shows the third type of current for the antenna device.

[0030] Figure 13 for Figure 8The diagram shows a schematic of an S11 parameter curve for the antenna device.

[0031] Figure 14 This is a schematic diagram of a fourth structure of the antenna device provided in the embodiments of this application.

[0032] Figure 15 for Figure 14 The diagram shows the S-parameter curves of the antenna device when the first feed and the second feed are working simultaneously.

[0033] Figure 16 for Figure 14 The diagram shows a structural schematic of the first matching circuit.

[0034] Figure 17 for Figure 14 The diagram shows a schematic of one structure of the third matching circuit.

[0035] Figure 18 This is a fifth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0036] Figure 19 for Figure 18 The diagram shows the first type of current for the antenna device.

[0037] Figure 20 for Figure 18 The diagram shows the second type of current for the antenna device.

[0038] Figure 21 This is a sixth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0039] Figure 22 for Figure 21 The diagram shows the first type of current for the antenna device.

[0040] Figure 23 for Figure 21 A schematic diagram of an S-parameter curve of the antenna device shown when the third feed source is in operation.

[0041] Figure 24 for Figure 21 The diagram shows the second type of current for the antenna device.

[0042] Figure 25 for Figure 21 The diagram shows the third type of current for the antenna device.

[0043] Figure 26 for Figure 21 The diagram shows the fourth type of current for the antenna device.

[0044] Figure 27 for Figure 21A schematic diagram of an S-parameter curve of the fourth feed source of the antenna device shown.

[0045] Figure 28 for Figure 21 A schematic diagram of an S-parameter curve of the antenna device shown, when the third and fourth feed sources are working simultaneously.

[0046] Figure 29 for Figure 21 The diagram shows a structural schematic of the fourth matching circuit.

[0047] Figure 30 for Figure 21 The diagram shows a structural schematic of the fifth matching circuit.

[0048] Figure 31 This is a seventh structural schematic diagram of the antenna device provided in the embodiments of this application.

[0049] Figure 32 for Figure 29 The diagram shows a schematic of an S-parameter curve for the antenna device.

[0050] Figure 33 This is an eighth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0051] Figure 34 for Figure 31 The diagram shows an electrical connection schematic of the antenna device.

[0052] Figure 35 This is a ninth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0053] Figure 36 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.

[0054] Figure 37 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.

[0055] Figure 38 for Figure 37 The diagram shows an application scenario of the electronic device.

[0056] Figure 39 for Figure 38 The diagram shows the system efficiency curves of the electronic device when it supports wireless signals in landscape handheld and non-handheld states.

[0057] Figure 40 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application.

[0058] Figure 41 This is a schematic diagram of a fourth structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0059] The following will refer to the appendices in the embodiments of this application. Figure 1 To be continued Figure 41 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0060] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] This application provides an antenna device 100 and an electronic device. The antenna device 100 can realize wireless communication functions. For example, the antenna device 100 can transmit Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, 3rd Generation (3G), 4th Generation (4G), 5th Generation (5G), Near Field Communication (NFC) signals, Bluetooth (BT) signals, Ultra Wideband (UWB) signals, etc.

[0062] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a first structure of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may include a first radiator 110, a second radiator 120, a first feed 171, and a first matching circuit 181.

[0063] The first radiator 110 may include a first end 111, a second end 112, and a first feed point 113, wherein the first feed point 113 may be located between the first end 111 and the second end 112. The first end 111 may be directly or indirectly grounded; for example, the first end 111 may be directly or indirectly electrically connected to a grounding plane to achieve grounding.

[0064] The first feed source 171 can be directly or indirectly electrically connected to the first feed point 113 to realize the electrical connection between the first feed source 171 and the first radiator 110. The first feed source 171 can provide a first excitation current to excite the first radiator 110 and the second radiator 120 to jointly support the transmission of wireless signals.

[0065] The second radiator 120 can be spaced apart from the first radiator 110. For example, the second radiator 120 can be spaced apart from the first radiator 110 on the side where the second end 112 of the first radiator 110 is located. The second radiator 120 may include a third end 121 and a fourth end 122. The third end 121 may be located between the fourth end 122 and the first radiator 110 (e.g., the second end 112). A first coupling gap 101 may be provided between the third end 121 and the second end 112. The first excitation current provided by the first feed source 171 can be coupled from the first radiator 110 to the second radiator 120 through the first coupling gap 101. The fourth end 122 can be directly or indirectly grounded. For example, the fourth end 122 can be directly or indirectly electrically connected to a grounding plane to achieve grounding. The second radiator 120 may also include an electrical connection point 124, which may be located between the third end 121 and the fourth end 122.

[0066] The first matching circuit 181 can be directly or indirectly electrically connected to the electrical connection point 124 of the second radiator 120, and the second radiator 120 can be grounded through the first matching circuit 181. Please refer to... Figure 1 Please refer to Figure 2 , Figure 2 for Figure 1 The diagram shows an equivalent circuit of the antenna device 100. The first matching circuit 181 can effectively short-circuit the first excitation current provided by the first feed 171, so that the first excitation current is directly grounded. That is, for the first excitation current, the resistance of the first matching circuit 181 is infinitesimal, and the first excitation current can be directly short-circuited back to ground.

[0067] The first excitation current can be distributed at least between the first feed point 113 and the second terminal 112, and between the third terminal 121 and the electrical connection point 124. Furthermore, the direction of the first excitation current in the first radiator 110 can be the same as the direction of the first excitation current in the second radiator 120.

[0068] For example, please combine Figure 1 and Figure 2 Please refer to Figure 3 , Figure 3 for Figure 1The first current schematic diagram of the antenna device 100 shown shows that the first excitation current I1 can flow to the first radiator 110 through the first feed 171 and can be coupled (i.e., electromagnetically coupled) to the second radiator 120 through the first coupling gap 101. The flow direction of the first excitation current I1 on the first conductor segment Z1 between the first feed point 113 and the second end 112 of the first radiator 110 can be the same as the flow direction on the second conductor segment Z2 between the third end 121 and the electrical connection point 124 of the second radiator 120. For example, but not limited to, the first excitation current I1 can flow from the first feed point 113 to the second end 112 on the first conductor segment Z1 and from the third end 121 to the electrical connection point 124 on the second conductor segment Z2. The first excitation current I1 can excite the first conductor segment Z1 between the first feed point 113 and the second end 112 of the first radiator 110 and the second conductor segment Z2 between the third end 121 and the electrical connection point 124 of the second radiator 120 to work together at the first resonance and support the wireless signal of the first frequency band.

[0069] It is understood that the first conductor segment Z1 and the second conductor segment Z2 can both operate in the first resonance in a quarter-wavelength mode. Of course, the first conductor segment Z1 and the second conductor segment Z2 can also operate in other modes in the first resonance, such as, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc. The embodiments of this application do not limit this.

[0070] It is understood that the first frequency band corresponding to the first resonance can be an ultra-high frequency band (UHB, including the 3000MHz-6000MHz frequency range). For example, but not limited to, the first frequency band can be the N77 or N78 band of 5G; of course, by adjusting the stub length of the first conductor segment Z1 and the second conductor segment Z2, and the impedance of the matching circuit of the electrical connection, the first frequency band can also be other ultra-high frequency bands. The embodiments of this application do not specifically limit the first frequency band.

[0071] When the first matching circuit 181 effectively short-circuits the first excitation current I1 so that the first excitation current I1 is directly grounded, the first excitation current I1 can also be distributed at least between the first feed point 113 and the second terminal 112, and between the third terminal 121 and the electrical connection point 124. Furthermore, the flow direction of the first excitation current I1 on the first radiator 110 can be different from the flow direction of the first excitation current I1 on the second radiator 120.

[0072] For example, please combine Figures 1 to 3 Please refer to Figure 4 , Figure 4 for Figure 1The second current schematic diagram of the antenna device 100 shown shows that the first excitation current I1 can flow to the first radiator 110 through the first feed 171 and can be coupled (i.e., electromagnetically coupled) to the second radiator 120 through the first coupling gap 101. The flow direction of the first excitation current I1 on the first conductor segment Z1 of the first radiator 110 can be opposite to the flow direction on the second conductor segment Z2 of the second radiator 120. For example, but not limited to, the first excitation current I1 can flow from the first feed point 113 to the second end 112 on the first conductor segment Z1 and from the electrical connection point 124 to the third end 121 on the second conductor segment Z2. The first excitation current I1 can excite the first conductor segment Z1 and the second conductor segment Z2 to work together at the second resonance and support the second frequency band.

[0073] It is understandable that the second resonance can be different from the first resonance, and the resonant frequency of the second resonance can be different from the resonant frequency of the first resonance. For example, the resonant frequency of the first resonance can be 3600MHz, and the resonant frequency of the second resonance can be 3800MHz.

[0074] It is understood that the second frequency band corresponding to the second resonance may not be exactly the same as the first frequency band corresponding to the first resonance; there may be partial overlap between the two. For example, the first frequency band corresponding to the first resonance may be the N78 band (3300MHz-3800MHz), and the second frequency band corresponding to the second resonance may be the N77 band (3300MHz-4200MHz). Of course, by adjusting the electrical lengths of the first conductor segment Z1 and the second conductor segment Z2, the second frequency band can be made completely different from the first frequency band. This application does not limit the specific range of the first and second frequency bands.

[0075] It is understandable that, since the excitation current is an AC signal, its direction changes periodically. Therefore, when the first conductor segment Z1 and the second conductor segment Z2 work together at the first resonance, the first excitation current I1 can flow from the second end 112 to the first feed point 113 on the first conductor segment Z1, and from the electrical connection point 124 to the third end 121 on the second conductor segment Z2. When the first conductor segment Z1 and the second conductor segment Z2 work together at the second resonance, the first excitation current I1 can flow from the second end 112 to the first feed point 113 on the first conductor segment Z1, and from the third end 121 to the electrical connection point 124 on the second conductor segment Z2. It should be noted that other excitation currents mentioned later in this application, such as the second excitation current I2, the third excitation current I3, the fourth excitation current I4, etc., also have this characteristic. That is to say, the direction of the excitation current in the following description can be either as described in the embodiments of this application or the opposite direction of that description. The direction of the excitation current will not be explained further in the following description.

[0076] It is understood that the description of the first excitation current I1 in the embodiments of this application refers to the majority (main) flow of the first excitation current I1. That is, the flow of the first excitation current I1 in the first conductor segment Z1 and the second conductor segment Z2 refers to the majority (main) flow of the first excitation current I1 in the first conductor segment Z1 and the second conductor segment Z2. Similarly, the descriptions of other excitation currents, such as the second excitation current I2, the third excitation current I3, the fourth excitation current I4, etc., in the following text also refer to the majority of the excitation currents. This will not be further explained in the following text.

[0077] It is understood that the first conductor segment Z1 and the second conductor segment Z2 can both operate in the second resonance in a quarter-wavelength mode. Of course, the first conductor segment Z1 and the second conductor segment Z2 can also operate in other modes in the second resonance, such as, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0078] It is understood that the second frequency band corresponding to the second resonance can be an ultra-high frequency band. For example, but not limited to, the second frequency band can be the N77 or N78 band of 5G; of course, by adjusting the stub length of the first conductor segment Z1 and the second conductor segment Z2, and the impedance of the matching circuit of the electrical connection, the second frequency band can also be other ultra-high frequency bands. The embodiments of this application do not specifically limit the second frequency band.

[0079] It is understood that the first feed 171 can provide a first excitation current I1 to enable the antenna device 100 to operate at the first resonance and support the transmission of signals in the first frequency band; the first feed 171 can also provide a first excitation current I1 to enable the antenna device 100 to operate at the second resonance and support the transmission of signals in the second frequency band; the first feed 171 can also provide a first excitation current I1 so that the antenna device 100 can operate at both the first and second resonances and support signals in both the first and second frequency bands simultaneously.

[0080] For example, please refer to Figure 5 , Figure 5 for Figure 1 The diagram shows an S11 parameter curve of the antenna device 100. Figure 5 The curve L1 is the S11 curve of the antenna device 100 operating simultaneously at the first resonance and the second resonance when the first feed 171 provides the first excitation current I1. As can be seen from the curve L1, the antenna device 100 can generate two resonances - the first resonance A1 and the second resonance A2. Furthermore, the frequency bands corresponding to these two resonances can jointly achieve the N77 / N78 wideband coverage requirements of UHB at home and abroad. The first frequency band and the second frequency band can jointly cover 3300MHz to 4100MHz.

[0081] Among them, such as Figure 5 As shown, the second frequency band corresponding to the second resonance A2 can be higher than the first frequency band corresponding to the first resonance A1. For example, the resonant frequency of the first resonance A1 can be around 3600MHz, and the resonant frequency of the second resonance A2 can be around 3800MHz, meaning the second frequency band can be higher than the first frequency band. It is understood that since the second and first frequency bands have certain bandwidths, they can partially overlap or completely not overlap. Here, "the second frequency band is higher than the first frequency band" means that the center frequency of the second frequency band is higher than the center frequency of the first frequency band, not that the entire second frequency band is higher than the first frequency band. When the first excitation current I1 flows in opposite directions in the first conductor segment Z1 and the second conductor segment Z2, causing the antenna device 100 to operate at the second resonance, the falling edge of the second resonance can be at a low frequency. If the second frequency band of the second resonance is lower than the first frequency band of the first resonance, then the second resonance is prone to forming an efficiency groove within the first frequency band range, thus severely affecting the radiation performance of the antenna device 100. The second frequency band in this embodiment is higher than the first frequency band, which can not only broaden the bandwidth of the antenna device 100, but also improve the efficiency of the first frequency band, so that the antenna device 100 has better radiation performance.

[0082] It should be noted that in actual debugging, the second frequency band can be made lower than the first frequency band. In this case, the antenna device 100 can take corresponding compensation measures to avoid the second frequency band generating an efficiency dip within the first frequency band. This application embodiment does not specifically limit the second frequency band and the first frequency band.

[0083] In the antenna device 100 of this application embodiment, a first conductor segment Z1 is formed between the first feed point 113 and the second end 112 of the first radiator 110, and the first end 111 of the first radiator 110 is grounded; a first coupling gap 101 is provided between the second radiator 120 and the first radiator 110, and a first matching circuit 181 is electrically connected to an electrical connection point 124 between the third end 121 and the fourth end 122 of the second radiator 120, and a second conductor segment Z2 is formed between the third end 121 and the electrical connection point 124; A feed 171 provides a first excitation current I1 to the first radiator 110. The first excitation current I1 is electromagnetically coupled to the second radiator 120 via the first coupling gap 101 and short-circuited to ground via the first matching circuit 181. The first excitation current I1 flows in the same direction on the first conductor segment Z1 and the second conductor segment Z2, but flows in opposite directions on the first conductor segment Z1 and the second conductor segment Z2, so that the first conductor segment Z1 and the second conductor segment Z2 can operate at either the first resonance or the second resonance. Based on this, the antenna device 100 of this embodiment can operate at two resonances without switching, which can both expand the bandwidth of the antenna device 100 and improve the transmission performance of the antenna device 100, and reduce the cost caused by switching. Furthermore, the first conductor segment Z1 and the second conductor segment Z2 are multiplexed, the antenna device 100 can be miniaturized, and the antenna device 100 is easier to assemble into other devices such as the electronic device 10.

[0084] Meanwhile, the first matching circuit 181 short-circuits the first excitation current I1 provided by the first feed source 171. The first excitation current I1 can be directly grounded from the first matching circuit 181. The first excitation current I1 is not likely to flow into other parts of the second radiator 120. The first excitation current I1 is not likely to flow through the feed point of the second radiator 120 (e.g., the second feed point 123 mentioned later) and into the feed source electrically connected to the second radiator 120 (e.g., the second feed source 172 mentioned later), thus affecting the performance of the second radiator 120. The interference between the first radiator 110 and the second radiator 120 is small.

[0085] In this regard, please combine Figure 1 Please refer to Figure 6 , Figure 6 This is a second structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may further include a second matching circuit 182.

[0086] The second matching circuit 182 can be connected in series between the first feed source 171 and the first feed point 113 of the first radiator 110. The second matching circuit 182 can perform impedance matching on the first excitation current I1 provided by the first feed source 171, so that the first conductor segment Z1 of the first radiator 110 and the second conductor segment Z2 of the second radiator 120 can work together at at least one of the first resonance and the second resonance.

[0087] It is understood that the second matching circuit 182 may include one or more electronic devices such as capacitors, inductors, and switches connected in series or parallel. For example, please refer to... Figure 7 , Figure 7 for Figure 6 The diagram shows a possible structure of the second matching circuit 182. The second matching circuit 182 may include a second capacitor C2, a second inductor L2, a third capacitor C3, and a third inductor L3. One end of the second inductor L2 is electrically connected to the first feed source 171. One end of the second capacitor C2 is electrically connected between the second inductor L2 and the first feed source 171, and the other end of the second capacitor C2 is grounded. One end of the third capacitor C3 and one end of the third inductor L3 are both electrically connected to the other end of the second inductor L2. The other ends of the third capacitor C3 and the third inductor L3 are both electrically connected to the first feed point 113 of the first radiator 110. The third inductors L3 and L3 can be connected in parallel between the second inductor L2 and the first feed point 113.

[0088] It should be noted that the above is merely an exemplary description of the second matching circuit 182 in this application embodiment. The structure of the second matching circuit 182 is not limited to this; for example, but not limited to, an inductor and a capacitor can be connected in series between the second inductor L2 and the first feed source 171. This application embodiment does not limit the specific structure of the second matching circuit 182, and other structures that can perform impedance matching adjustment of the excitation current provided by the first feed source 171 are all within the protection scope of this application embodiment.

[0089] Please refer to the following: Figure 8 , Figure 8 This is a schematic diagram of a third structure of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may further include a second feed source 172.

[0090] The second feed source 172 can be directly or indirectly electrically connected to the second radiator 120. For example, the second radiator 120 can also be provided with a second feed point 123, which can be located between the electrical connection point 124 and the fourth terminal 122 of the second radiator 120, and the second feed source 172 can be directly or indirectly electrically connected to the second feed point 123. The second feed source 172 can provide an excitation current, for example, but not limited to, the second feed source 172 can provide a second excitation current.

[0091] Please combine Figure 8 Please refer to Figure 9 , Figure 9 for Figure 8 The diagram shows an equivalent circuit of the antenna device 100. The first matching circuit 181 can open-circuit the second excitation current I2 provided by the second feed 172, preventing the second excitation current I2 from returning to ground through the first matching circuit 181. In other words, the impedance of the first matching circuit 181 is infinite for the second excitation current I2, thus blocking its return to ground. The second excitation current I2 can then bypass the electrical connection point 124 of the second radiator 120. In this case, the second excitation current I2 can either flow on the second radiator 120 or be coupled to the first radiator 110 through the first coupling gap 101 and flow on the first radiator 110.

[0092] For example, please combine Figure 8 , Figure 9 Please refer to Figure 10 , Figure 10 for Figure 8 The diagram shows a first current configuration for the antenna device 100. The second excitation current I2 can flow through the second feed 172 to the second radiator 120, and can excite the entire second radiator 120 (the conductor segment between the third end 121 and the fourth end 122) to operate at the third resonance and support the transmission of wireless signals in the third frequency band.

[0093] It is understood that the second excitation current I2 can excite the second radiator 120 to operate in the third resonance in a quarter-wavelength mode. The direction of the second excitation current I2 in the second radiator 120 can be the same, for example, but not limited to, flowing from the fourth terminal 122 to the third terminal 121. Of course, the second radiator 120 can also operate in other modes in the third resonance, for example, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc. The embodiments of this application do not limit this.

[0094] It is understood that the third frequency band corresponding to the third resonance can be a mid-high frequency band (Middle High Band, abbreviated as MHB, 1000MHz to 3000MHz). Of course, by adjusting the branch length of the second radiator 120 and the impedance of the matching circuit electrically connected to the second radiator 120, the third frequency band can also be other frequency bands. This application embodiment does not specifically limit the third frequency band.

[0095] In this regard, please combine Figure 8 , Figure 9 Please refer to Figure 11 , Figure 11 for Figure 8The diagram shows a second current configuration for the antenna device 100. The second excitation current I2 can also flow through the second feed 172 to the second radiator 120, and can excite the third conductor segment Z3 between the second feed point 123 and the third terminal 121 of the second radiator 120 to operate at a fourth resonance and support the transmission of a fourth wireless signal. It is understood that the fourth resonance can be different from the third resonance, and the resonant frequency of the fourth resonance can be different from the resonant frequency of the third resonance.

[0096] It is understood that the third conductor segment Z3 between the second feed point 123 and the third end 121 of the second radiator 120 can operate in a quarter-wavelength mode at the fourth resonance, and the second excitation current I2 can flow in the same direction on the second radiator 120, for example, but not limited to, from the second feed point 123 to the third end 121. Of course, the third conductor segment Z3 can also operate in other modes at the fourth resonance, for example, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0097] It is understandable that the fourth frequency band corresponding to the fourth resonance can be the MHB frequency band. Of course, by adjusting the stub length of the third conductor segment Z3 and the impedance of the matching circuit electrically connected to the third conductor segment Z3, the fourth frequency band can also be made to be other frequency bands. This application does not specifically limit the fourth frequency band.

[0098] In this regard, please combine Figure 8 , Figure 9 Please refer to Figure 12 , Figure 12 for Figure 8 The diagram shows the third type of current in the antenna device 100. The second excitation current I2 can also flow to the second radiator 120 through the second feed 172, and can be coupled to the first radiator 110 through the first coupling gap 101 (electromagnetic). The second excitation current I2 can excite the entire first radiator 110 to operate at the fifth resonance and support the transmission of wireless signals in the fifth frequency band.

[0099] Understandably, under the action of the second excitation current I2, the first radiator 110 can operate in the fifth resonance in a quarter-wavelength mode, and the flow direction of the second excitation current I2 on the second radiator 120 can be in the same direction, for example, but not limited to, flowing from the second end 112 to the first end 111. Of course, the first radiator 110 can also operate in the fifth resonance in other modes, for example, but not limited to, in a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0100] It is understandable that the fifth frequency band corresponding to the fifth resonance can be the MHB band. Of course, by adjusting the stub length of the first radiator 110 and the impedance of the matching circuit electrically connected to the first radiator 110, the fifth frequency band can also be other frequency bands. This application embodiment does not specifically limit the fifth frequency band.

[0101] It is understandable that the second excitation current I2 can excite the antenna device 100 to operate at one, two, or three of the third, fourth, and fifth resonances, so that the antenna device 100 can operate at one, two, or three resonances simultaneously.

[0102] It is understood that at least one of the third frequency band corresponding to the third resonance, the fourth frequency band corresponding to the fourth resonance, and the fifth frequency band corresponding to the fifth resonance can be the MHB frequency band. When the second excitation current I2 simultaneously excites the antenna device 100 to operate at the third, fourth, and fifth resonances, the third, fourth, and fifth frequency bands can collectively cover the MHB frequency band. For example, please refer to... Figure 13 , Figure 13 for Figure 8 A schematic diagram of an S11 parameter curve of the antenna device 100 shown. Figure 13 The curve L2 is the curve of S11 formed by the antenna device 100 under the excitation of the second excitation current I2. It can be seen from the curve L2 that the antenna device 100 can generate three resonances - the third resonance A3, the fourth resonance A4 and the fifth resonance A5. Furthermore, the frequency bands corresponding to these three resonances can jointly achieve the mid-to-high frequency broadband coverage requirement. The third to fifth frequency bands can jointly cover 1000MHz to 3000MHz.

[0103] In the antenna device 100 of this application embodiment, the second excitation current I2 provided by the second feed 172 can cause the second radiator 120 to operate at the third resonance, the third conductor segment Z3 on the second radiator 120 to operate at the fourth resonance, and the first radiator 110 to operate at the fifth resonance. On the one hand, the three resonances can expand the bandwidth of the antenna device 100 and improve the transmission performance of the antenna device 100; on the other hand, the first radiator 110 and the second radiator 120 can be reused, and the antenna device 100 can be miniaturized.

[0104] Among them, such as Figures 1 to 7 It is understood that the first feed 171 in this embodiment can operate independently, allowing the antenna device 100 to operate at one or both of the first and second resonances. For example... Figures 8 to 13 It is understood that the second feed 172 in this embodiment can also operate independently, allowing the antenna device 100 to operate at one, two, or three of the third, fourth, and fifth resonances. Of course, please refer to... Figure 14 , Figure 14 This is a fourth structural schematic diagram of the antenna device 100 provided in the embodiments of this application. The first feed 171 and the second feed 172 in the embodiments of this application can also work simultaneously, so that the antenna device 100 can work at one or two of the first resonance and the second resonance, and one, two or three of the third resonance, the fourth resonance and the fifth resonance.

[0105] For example, please refer to Figure 14 And refer to Figure 15 , Figure 15 for Figure 14 A schematic diagram of the S-parameter curves of the antenna device 100 when the first feed 171 and the second feed 172 are working simultaneously. Figure 15 The middle curve L3 is the S11 curve when the first feed 171 provides the first excitation current I1 so that the antenna device 100 operates at the first resonance and the second resonance. The L3 curve is the aforementioned L1 curve. Figure 13 The middle curve L4 is the S11 curve when the second feed 172 provides the second excitation current I2, causing the antenna device 100 to operate at the third resonance, fourth resonance and fifth resonance. L4 is the aforementioned L2 curve. Figure 15 The middle curve L5 is the isolation curve (S12 curve) when the first feed 171 and the second feed 172 work simultaneously. As can be seen from curve L5, when the first feed 171 and the second feed 172 work simultaneously, the first resonance to the fifth resonance can work effectively independently, the isolation between each resonance meets the requirements, and the mutual interference between the first feed 171 and the second feed 172 is small.

[0106] It should be noted that when the antenna device 100 of this embodiment operates at the first resonance and the second resonance, the first matching circuit 181 can effectively short-circuit the first excitation current provided by the first feed 171, and the antenna device 100 may not include the second feed 172. When the antenna device 100 operates at the third resonance, the fourth resonance, and the fifth resonance, the first matching circuit 181 can open-circuit the second excitation current provided by the second feed 172, or in other words, the antenna device 100 may not have the first matching circuit 181, and the antenna device 100 may also not include the first feed 171. When the antenna device 100 operates simultaneously at the first to the fifth resonance, the antenna device 100 may simultaneously include the first feed 171 and the second feed 172, and the first matching circuit 181 can either short-circuit the first excitation current provided by the first feed 171 or open-circuit the second excitation current provided by the second feed 172.

[0107] For example, please refer to Figure 14 Please refer to Figure 16 , Figure 16 for Figure 14The diagram shows a structural schematic of the first matching circuit 181. The first matching circuit 181 may include a first inductor L1 and a first capacitor C1, which can be connected in series between the electrical connection point 124 of the second radiator 120 and the ground plane. The first matching circuit 181 can either short-circuit the excitation current provided by the first feed 171 or open-circuit the excitation current provided by the second feed 172.

[0108] It is understood that the second radiator 120, the first capacitor C1, the first inductor L1, and the ground plane can be connected in series sequentially. For example, one end of the first capacitor C1 can be directly or indirectly connected to the electrical connection point 124 of the second radiator 120, the other end of the first capacitor C1 can be directly or indirectly connected to one end of the first inductor L1, and the other end of the first inductor L1 can be connected to the ground plane to achieve grounding. Of course, the electrical connection point 124, the first inductor L1, the first capacitor C1, and the ground plane can also be connected in series sequentially. The embodiments of this application do not limit the specific manner in which the first inductor L1 and the first capacitor C1 are connected in series at the electrical connection point 124 and the ground plane.

[0109] It is understood that the structure of the first matching circuit 181 is not limited to the above description. For example, but not limited to, the first matching circuit 181 may also include an inductor connected in parallel across the first capacitor C1, or the first matching circuit 181 may also include an inductor and a capacitor connected in series across the first capacitor C1. This application does not limit the specific structure of the first matching circuit 181.

[0110] The antenna device 100 in this embodiment may further include a third matching circuit 183, for example... Figure 14 As shown, the third matching circuit 183 can be connected in series between the second feed 172 and the second feed point 123. The third matching circuit 183 can perform impedance matching on the second excitation current I2 provided by the second feed 172 so that the antenna device 100 can operate at at least one of the third resonance, the fourth resonance, and the fifth resonance.

[0111] It is understood that the third matching circuit 183 may include one or more electronic devices such as capacitors, inductors, and switches connected in series or parallel. For example, please refer to... Figure 17 , Figure 17 for Figure 14The diagram shows a structural schematic of the third matching circuit 183. The third matching circuit 183 may include a fourth inductor L4, a fourth capacitor C4, a fifth inductor L5, and a fifth capacitor C5. One end of the fifth inductor L5 can be directly or indirectly connected to the second feed source 172, and the other end of the fifth inductor L5 can be directly or indirectly connected to one end of the fifth capacitor C5. The other end of the fifth capacitor C5 can be directly or indirectly connected to the second feed point 123 of the second radiator 120. One end of the fourth inductor L4 and one end of the fourth capacitor C4 can be directly or indirectly connected between the fifth inductor L5 and the second feed source 172. The other ends of the fourth inductor L4 and the fourth capacitor C4 are both directly or indirectly connected to the ground plane to achieve grounding. The fourth inductor L4 and the fourth capacitor C4 can be connected in parallel.

[0112] It should be noted that the above is merely an exemplary description of the third matching circuit 183 in this application embodiment. The structure of the third matching circuit 183 is not limited to this. For example, but not limited to, additional inductors and capacitors can be connected in series between the second feed 172 and the second radiator 120. This application embodiment does not limit the specific structure of the third matching circuit 183. Other structures that can perform impedance matching adjustment of the excitation current provided by the first feed 171 are all within the protection scope of this application embodiment.

[0113] Please refer to the following: Figure 18 , Figure 18 This is a fifth structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The antenna device 100 in this embodiment may include a third radiator 130 and a third feed source 173.

[0114] The third radiator 130 may include a fifth terminal 131, a sixth terminal 132, and a third feed point 133, wherein the third feed point 133 may be located between the fifth terminal 131 and the sixth terminal 132. It is understood that the third radiator 130 may be located on one side of the first radiator 110 and the second radiator 120, such that the second radiator 120 may be located between the first radiator 110 and the third radiator 130. The fifth terminal 131 of the third radiator 130 may be directly or indirectly electrically connected to a grounding plane to achieve grounding, and the sixth terminal 132 of the third radiator 130 may extend in a direction away from the first radiator 110 and the second radiator 120, with the fifth terminal 131 located between the sixth terminal 132 and the second radiator 120.

[0115] It is understood that the section between the fifth end 131 and the third feed point 133 of the third radiator 130 can be the fourth conductor segment Z4, and the section between the third feed point 133 and the sixth end 132 can be the fifth conductor segment Z5. The third radiator 130 can include the fourth conductor segment Z4 and the fifth conductor segment Z5.

[0116] The third feed source 173 can be directly or indirectly electrically connected to the third feed point 133 to realize the electrical connection between the third feed source 173 and the third radiator 130. The third feed source 173 can provide an excitation current, such as, but not limited to, providing a third excitation current I3.

[0117] In this regard, please combine Figure 18 Please refer to Figure 19 , Figure 19 for Figure 18 The diagram shows the first current of the antenna device 100. The third excitation current I3 can flow to the third radiator 130 through the third feed 173. The third excitation current I3 can excite the fourth conductor segment Z4 between the fifth end 131 and the third feed point 133 of the third radiator 130 to operate at the sixth resonance in the sixth frequency band.

[0118] It is understood that the third excitation current I3 can excite the fourth conductor segment Z4 to operate at the sixth resonance in an eighth-wavelength mode. The direction of the third excitation current I3 in the third radiator 130 can be the same, for example, but not limited to, flowing from the third feed point 133 to the fifth end 131. Of course, the second radiator 120 can also operate at the third resonance in other modes, for example, but not limited to, in a half-wavelength mode, a three-quarter-wavelength mode, a quarter-wavelength mode, etc. The embodiments of this application do not limit this.

[0119] In this regard, please combine Figure 18 Please refer to Figure 20 , Figure 20 for Figure 18 The diagram shows a second type of current for the antenna device 100. The third excitation current I3 can flow through the third feed 173 to the third radiator 130, and can excite the fifth conductor segment Z5 between the third feed point 133 and the sixth terminal 132 of the third radiator 130 to operate at the seventh resonance and support the transmission of the seventh wireless signal. The seventh resonance may be different from the sixth resonance, and the seventh frequency band corresponding to the seventh resonance may be different from the sixth frequency band corresponding to the sixth resonance.

[0120] It is understood that the fifth conductor segment Z5 between the third feed point 133 and the sixth terminal 132 of the third radiator 130 can operate in a quarter-wavelength mode at the sixth resonance, and the direction of the third excitation current I3 in the fifth conductor segment Z5 can be the same, for example, but not limited to, the third excitation current I3 can flow from the third feed point 133 to the sixth terminal 132. Of course, the fifth conductor segment Z5 can also operate in other modes at the seventh resonance, for example, but not limited to, in a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0121] It is understood that the sixth frequency band corresponding to the sixth resonance can be either the frequency band corresponding to GPS signals or the frequency band corresponding to Wi-Fi 2.4G. Similarly, the seventh frequency band corresponding to the seventh resonance can be either the frequency band corresponding to GPS signals or the frequency band corresponding to Wi-Fi 2.4G. For example, the resonant frequency of the sixth resonance can be around 1170MHz, and the sixth frequency band corresponding to it can be the frequency band corresponding to GPS signals; the resonant frequency of the seventh resonance can be around 2400MHz, and the seventh frequency band corresponding to it can be the frequency band corresponding to Wi-Fi 2.4G. Of course, by adjusting the stub length of the fourth conductor segment Z4 and the impedance of the matching circuit electrically connected to the fourth conductor segment Z4, the sixth frequency band can also be made to be another frequency band; similarly, by adjusting the stub length of the fifth conductor segment Z5 and the impedance of the matching circuit electrically connected to the fifth conductor segment Z5, the seventh frequency band can also be made to be another frequency band. This application does not specifically limit the sixth frequency band.

[0122] In the antenna device 100 of this application embodiment, the third radiator 130 can operate at the sixth resonance and the seventh resonance under the action of the third excitation current I3 provided by the third feed 173. On the one hand, it can expand the bandwidth of the antenna device 100; on the other hand, the third radiator 130 can be reused, which can realize the miniaturization design of the antenna device 100.

[0123] Please refer to the following: Figure 21 , Figure 21 This is a sixth structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may include a fourth radiator 140.

[0124] The fourth radiator 140 may include a seventh end 141 and an eighth end 142. The seventh end 141 may be located on the side where the sixth end 132 of the third radiator 130 is located. The eighth end 142 may extend away from the third radiator 130 and be grounded. The seventh end 141 may be located between the eighth end 142 and the third radiator 130. The third radiator 130 may be located between the second radiator 120 and the fourth radiator 140. A second coupling gap 102 may be provided between the seventh end 141 and the sixth end 132 of the fourth radiator 140 so that the fourth radiator 140 may be spaced apart from the third radiator 130.

[0125] The third feed source 173 can also provide a third excitation current. Please refer to... Figure 21 Please refer to Figure 22 , Figure 22 for Figure 21The diagram shows a first current configuration for the antenna device 100. A third excitation current I3 can flow through the third feed 173 to the third radiator 130, and then be coupled through the second coupling gap 102 (electromagnetically) to the fourth radiator 140. The third excitation current I3 can excite the fourth radiator 140 to operate at the eighth resonance in the eighth frequency band. This eighth resonance can be different from the sixth resonance or the seventh resonance.

[0126] It is understood that the third excitation current I3 can excite the fourth radiator 140 to operate in the eighth resonance in a quarter-wavelength mode. The direction of the third excitation current I3 in the fourth radiator 140 can be the same, for example, but not limited to, flowing from the seventh terminal 141 to the eighth terminal 142. Of course, the fourth radiator 140 can also operate in other modes at the eighth resonance, for example, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc. The embodiments of this application do not limit this.

[0127] It is understandable that the eighth frequency band corresponding to the eighth resonance can be, but is not limited to, the frequency band corresponding to GPS signals or the frequency band corresponding to Wi-Fi 2.4G. The eighth frequency band can be different from the sixth frequency band or the seventh frequency band. For example, the resonant frequency of the sixth resonance can be around 1170MHz, the resonant frequency of the seventh resonance can be around 2400MHz, and the resonant frequency of the eighth resonance can be around 2900MHz.

[0128] It is understandable that when antenna device 100 operates simultaneously at the sixth, seventh, and eighth resonances, the sixth frequency band corresponding to the sixth resonance, the seventh frequency band corresponding to the seventh resonance, and the eighth frequency band corresponding to the eighth resonance can collectively cover the GPS frequency band and the 2.4GHz Wi-Fi frequency band. For an example, please refer to... Figure 23 , Figure 23 for Figure 21 A schematic diagram of an S-parameter curve of the third feed 173 of the antenna device 100 during operation. Figure 23 The middle curve L6 is the S11 curve of the antenna device 100 when the third feed 173 provides the third excitation current I3 and excites the antenna device 100 to work at the sixth resonance, the seventh resonance and the eighth resonance at the same time. As can be seen from the curve L6, the antenna device 100 can generate three resonances - the sixth resonance A6, the seventh resonance A7 and the eighth resonance A8. Furthermore, the frequency bands corresponding to these three resonances can jointly achieve the wideband coverage requirement from the GPS frequency band to the 2.4G frequency band of Wi-Fi.

[0129] Please refer to this again. Figure 21 The antenna device 100 in this application embodiment may further include a fourth feed source 174.

[0130] The fourth feed source 174 can be directly or indirectly electrically connected to the fourth radiator 140. For example, the fourth radiator 140 may also include a fourth feed point 143, which can be located between the seventh terminal 141 and the eighth terminal 142, and the area between the fourth feed point 143 and the seventh terminal 141 can be a sixth conductor segment Z6. The fourth feed source 174 can be directly or indirectly electrically connected to the fourth feed point 143.

[0131] Understandably, the fourth feed 174 can provide an excitation current, such as, but not limited to, a fourth excitation current, to excite the antenna device 100 to operate at a corresponding resonance.

[0132] In this regard, please combine Figure 21 Please refer to Figure 24 , Figure 24 for Figure 21 The diagram shows a second type of current for the antenna device 100. The fourth excitation current I4 can flow through the fourth feed 174 to the fourth radiator 140, and can be coupled to the third radiator 130 through the second coupling gap 102. The fourth excitation current I4 can excite the sixth conductor segment Z6 between the fourth feed point 143 and the seventh end 141 of the fourth radiator 140 and the fifth conductor segment Z5 between the third feed point 133 and the sixth end 132 of the third radiator 130 to work together at the ninth resonance in the ninth frequency band.

[0133] It is understood that the sixth conductor segment Z6 and the fifth conductor segment Z5 can operate together in a quarter-wavelength mode at the ninth resonance, and the fourth excitation current I4 can flow in the same direction in the sixth conductor segment Z6 and the fifth conductor segment Z5, for example, but not limited to, flowing from the fourth feed point 143 towards the third feed point 133. Of course, the sixth conductor segment Z6 and the fifth conductor segment Z5 can also operate in other modes at the ninth resonance, for example, but not limited to, a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0134] In this regard, please combine Figure 21 Please refer to Figure 25 , Figure 25 for Figure 21 The diagram shows the third type of current in the antenna device 100. The fourth excitation current I4 can flow to the fourth radiator 140 through the fourth feed 174, and can excite the sixth conductor segment Z6 between the fourth feed point 143 and the seventh terminal 141 of the fourth radiator 140 to operate at the tenth resonance in the tenth frequency band. The tenth resonance may be different from the ninth resonance.

[0135] It is understood that the sixth conductor segment Z6 can operate alone at the tenth resonance in a quarter-wavelength mode, and the fourth excitation current I4 can flow in the same direction on the sixth conductor segment Z6, for example, but not limited to, flowing from the fourth feed point 143 toward the seventh terminal 141. Of course, the sixth conductor segment Z6 can also operate at the tenth resonance in other modes, for example, but not limited to, in a half-wavelength mode, a three-quarter-wavelength mode, an eighth-wavelength mode, etc., and this application embodiment does not limit this.

[0136] In this regard, please combine Figure 21 Please refer to Figure 26 , Figure 26 for Figure 21 The diagram shows the fourth current of the antenna device 100. The fourth excitation current I4 can flow to the fourth radiator 140 through the fourth feed 174, and can be coupled to the third radiator 130 through the second coupling gap 102. The fourth excitation current I4 can excite the third radiator 130 to operate at the eleventh resonance in the eleventh frequency band. The eleventh resonance can be different from the ninth resonance or the tenth resonance. For example, the center frequencies of the ninth resonance, the tenth resonance, and the eleventh resonance are all different.

[0137] It is understood that the third radiator 130 can operate alone at the eleventh resonance in a three-quarter wavelength mode, and the fourth excitation current I4 can have a current zero point between the sixth terminal 132 and the seventh terminal 141 of the third radiator 130. The flow direction of the fourth excitation current I4 on the branch from the sixth terminal 132 to the current zero point can be opposite to the flow direction on the branch from the seventh terminal 141 to the current zero point. Of course, the third radiator 130 can also operate at the eleventh resonance in other modes, such as, but not limited to, a half-wavelength mode, a quarter-wavelength mode, an eighth-wavelength mode, etc., and the embodiments of this application do not limit this.

[0138] It is understood that the ninth frequency band corresponding to the ninth resonance, the tenth frequency band corresponding to the tenth resonance, and the eleventh frequency band corresponding to the eleventh resonance can all be ultra-high frequency bands, such as, but not limited to, the N78 band and the 5G band of Wi-Fi. Of course, by adjusting the branch length of the fifth conductor segment Z5, the sixth conductor segment Z6, the third radiator 130, and the impedance of the matching circuit electrically connected to them, the ninth, tenth, and eleventh frequency bands can also be other ultra-high frequency bands. This application does not specifically limit this.

[0139] Understandably, the fourth excitation current I4 can excite the antenna device 100 to operate at one, two, or three of the ninth, tenth, and eleventh resonants. One, two, or three of the ninth frequency band corresponding to the ninth resonant, the tenth frequency band corresponding to the tenth resonant, and the eleventh frequency band corresponding to the eleventh resonant can support the 5G frequency bands of UHB or Wi-Fi. When the antenna device 100 operates simultaneously at the ninth, tenth, and eleventh resonants, the ninth, tenth, and eleventh frequency bands can collectively cover the 5G frequency bands of both UHB and Wi-Fi. For an example, please refer to... Figure 27 , Figure 27 for Figure 21 A schematic diagram of an S-parameter curve of the fourth feed 174 of the antenna device 100 shown in operation. Figure 27 Curve L7 represents the S11 parameter curve when the fourth excitation current I4 excites the antenna device 100 to operate simultaneously at the ninth, tenth, and eleventh resonances. Curve L7 shows that the antenna device 100 can generate three resonances—the ninth resonance A9, the tenth resonance A10, and the eleventh resonance A11. The frequency of the ninth resonance can be around 3.5 GHz, the tenth resonance around 5.2 GHz, and the eleventh resonance around 6.0 GHz. The ninth, tenth, and eleventh resonances can collectively achieve the wideband coverage requirements of UHB and Wi-Fi in the 5G frequency band.

[0140] The antenna device 100 of this application embodiment can operate in three resonances under the excitation current provided by the fourth feed 174. On the one hand, it can expand the bandwidth of the antenna device 100. On the other hand, the third radiator 130 and the fourth radiator 140 can be reused, which can realize the miniaturization design of the antenna device 100.

[0141] In this embodiment, the third feed 173 can operate independently, allowing the antenna device 100 to operate at one or more of the sixth, seventh, and eighth resonances; similarly, the fourth feed 174 can operate independently, allowing the antenna device 100 to operate at one or more of the ninth, tenth, and eleventh resonances. Alternatively, the third feed 173 and the fourth feed 174 can operate simultaneously, allowing the antenna device 100 to operate at one or more of the sixth, seventh, and eighth resonances, as well as one or more of the ninth, tenth, and eleventh resonances.

[0142] For example, please refer to Figure 28 , Figure 28 for Figure 21 A schematic diagram of an S-parameter curve of the antenna device 100 when the third feed 173 and the fourth feed 174 are working simultaneously. Figure 28The curve L8 is the S11 parameter curve of the third feed 173 excitation antenna device 100 when it is operating at the sixth resonance, seventh resonance and eighth resonance. L8 is the aforementioned L6. Figure 28 The curve L9 is the S11 parameter curve of the fourth feed 174 excitation antenna device 100 when it is operating at the ninth resonance, tenth resonance and eleventh resonance. L9 is the aforementioned L7. Figure 28 Curve L10 in the figure is the isolation curve when the third feed 173 and the fourth feed 174 work simultaneously. It can be seen from curve L10 that when the third feed 173 and the fourth feed 174 work simultaneously, the sixth to eleventh resonances mentioned above can work effectively independently, and the isolation between each resonance meets the requirements. The mutual interference between the third feed 173 and the fourth feed 174 is small.

[0143] Please refer to this again. Figure 21 The antenna device 100 may also include a fourth matching circuit 184.

[0144] The fourth matching circuit 184 can be connected in series between the third feed 173 and the third feed point 133 of the third radiator 130. The fourth matching circuit 184 can perform impedance matching on the third excitation current provided by the third feed 173 so that the antenna device 100 can operate at at least one of the sixth resonance, the seventh resonance, and the eighth resonance.

[0145] It is understood that when the antenna device 100 includes a fourth radiator 140 and a fourth feed 174 and the fourth feed 174 can provide a fourth excitation current I4, the fourth matching circuit 184 can also short-circuit the fourth excitation current I4, so that the fourth excitation current I4 can be grounded through the fourth matching circuit 184 without flowing into the third feed 173.

[0146] It is understood that the fourth matching circuit 184 may include one or more electronic devices such as capacitors, inductors, and switches connected in series or parallel. For example, please refer to... Figure 29 , Figure 29 for Figure 21The diagram shows a schematic of one structure of the fourth matching circuit 184. The fourth matching circuit 184 may include a sixth capacitor C6, a sixth inductor L6, a seventh capacitor C7, a seventh inductor L7, an eighth capacitor C8, an eighth inductor L8, a ninth capacitor C9, and a tenth capacitor C10. The sixth capacitor C6, the eighth capacitor C8, and the tenth capacitor C10 can be connected in series between the third feed source 173 and the third feed point 133 of the third radiator 130. For example, one end of the sixth capacitor C6 can be directly or indirectly connected to the third feed source 173; the other end of the sixth capacitor C6 can be directly or indirectly connected to one end of the eighth capacitor C8; the other end of the eighth capacitor C8 can be directly or indirectly connected to one end of the tenth capacitor C10; and the other end of the tenth capacitor C10 can be directly or indirectly connected to the third feed point 133 of the third radiator 130. One end of the sixth inductor L6 can be electrically connected between the sixth capacitor C6 and the eighth capacitor C8, and the other end of the sixth inductor L6 can be grounded. One end of the seventh capacitor C7 can be electrically connected between the sixth capacitor C6 and the eighth capacitor C8, and the other end of the seventh capacitor C7 can be grounded. One end of the seventh inductor L7 can be electrically connected between the eighth capacitor C8 and the sixth capacitor C6, and the other end of the seventh inductor L7 can be electrically connected between the eighth capacitor C8 and the tenth capacitor C10. The seventh inductor L7 can be connected in parallel across the eighth capacitor C8. One end of the eighth inductor L8 can be electrically connected between the eighth capacitor C8 and the tenth capacitor C10, and the other end of the eighth inductor L8 can be grounded. One end of the ninth capacitor C9 can be electrically connected between the eighth capacitor C8 and the tenth capacitor C10, and the other end of the ninth capacitor C9 can be grounded.

[0147] It is understood that the fourth matching circuit 184 in this application embodiment may only perform impedance matching adjustment on the excitation current provided by the third feed 173, or only short-circuit the fourth excitation current I4 provided by the fourth feed 174, or simultaneously perform impedance matching adjustment on the excitation current provided by the third feed 173 and short-circuit the fourth excitation current I4 provided by the fourth feed 174.

[0148] It should be noted that the above is merely an exemplary description of the fourth matching circuit 184 in this application embodiment. The structure of the fourth matching circuit 184 is not limited to this; for example, but not limited to, additional inductors and capacitors can be connected in series between the third feed source 173 and the third radiator 130. This application embodiment does not limit the specific structure of the fourth matching circuit 184.

[0149] The fourth matching circuit 184 in this embodiment can both perform impedance matching on the excitation current provided by the third feed 173 and short-circuit the fourth excitation current I4 provided by the fourth feed 174. On the one hand, the fourth matching circuit 184 can tune the sixth, seventh, and eighth resonances so that the antenna device 100 can support the frequency band. On the other hand, the fourth excitation current I4 will not flow into the third feed 173 and interfere with the third feed 173. The mutual interference between the third feed 173 and the fourth feed 174 when they work at the same time is smaller.

[0150] Please refer to this again. Figure 21 The antenna device 100 may also include a fifth matching circuit 185.

[0151] The fifth matching circuit 185 can be connected in series between the fourth feed 174 and the fourth feed point 143 of the fourth radiator 140. The fifth matching circuit 185 can perform impedance matching on the excitation current provided by the fourth feed 174. For example, the fifth matching circuit 185 can perform impedance matching on the fourth excitation current I4 provided by the fourth feed 174 so that the antenna device 100 can operate at at least one of the ninth resonance, tenth resonance, and eleventh resonance.

[0152] It is understood that the fourth matching circuit 184 may include one or more electronic devices such as capacitors, inductors, and switches connected in series or parallel. For example, please refer to... Figure 30 , Figure 30 for Figure 21The diagram shows a possible structure of the fifth matching circuit 185. The fifth matching circuit 185 may include a ninth inductor L9, an eleventh capacitor C11, a tenth inductor L10, a twelfth capacitor C12, and an eleventh inductor L11. The ninth inductor L9 and the twelfth capacitor C12 can be connected in series between the fourth feed source 174 and the fourth feed point 143 of the fourth radiator 140. For example, one end of the ninth inductor L9 can be directly or indirectly connected to the fourth feed source 174, and the other end of the ninth inductor L9 can be directly or indirectly connected to one end of the twelfth capacitor C12. The other end of the twelfth capacitor C12 can be directly or indirectly connected to the fourth feed point 143 of the fourth radiator 140. One end of the eleventh capacitor C11 can be directly or indirectly connected between the ninth inductor L9 and the twelfth capacitor C12, and the other end of the eleventh capacitor C11 can be grounded. The tenth inductor L10 can be connected in parallel across the twelfth capacitor C12. For example, one end of the tenth inductor L10 can be directly or indirectly connected between the ninth inductor L9 and the twelfth capacitor C12, and the other end of the tenth inductor L10 can be directly or indirectly connected between the twelfth capacitor C12 and the fourth feed point 143. One end of the eleventh inductor L11 can be directly or indirectly connected between the twelfth capacitor C12 and the fourth feed point 143, and the other end of the eleventh inductor L11 can be grounded.

[0153] It is understood that the structure of the fourth matching circuit 184 is not limited to the above description. For example, but not limited to, the fourth matching circuit 184 may also include an inductor and a capacitor connected in series between the ninth inductor L9 and the twelfth capacitor C12. The embodiments of this application do not limit the specific structure of the fourth matching circuit 184.

[0154] It should be noted that the antenna device 100 in this application embodiment may include one, two, three or four of the first radiator 110, the second radiator 120, the third radiator 130 and the fourth radiator 140. When the antenna device 100 includes a specific radiator and a feed source electrically connected to the radiator, the antenna device 100 may operate at a resonance associated with the radiator.

[0155] Please refer to the following: Figure 31 and Figure 32 , Figure 31 This is a seventh structural schematic diagram of the antenna device 100 provided in the embodiments of this application. Figure 32 for Figure 31 The diagram shows an S-parameter curve of the antenna device 100. The antenna device 100 may simultaneously include a first radiator 110, a second radiator 120, a third radiator 130, a fourth radiator 140, a first feed 171, a second feed 172, a third feed 173, and a fourth feed 174.

[0156] When the first feed source 171, the second feed source 172, the third feed source 173, and the fourth feed source 174 operate simultaneously, such as Figure 32 As shown, Figure 32 Curve L11 represents the S11 parameter curve when the first feed source 171 operates alone; curve L12 represents the S11 parameter curve when the second feed source 172 operates alone; curve L13 represents the S11 parameter curve when the third feed source 173 operates alone; and curve L14 represents the S11 parameter curve when the fourth feed source 174 operates alone. Curve L15 represents the isolation curve between the first feed source 171 and the second feed source 172; curve L16 represents the isolation curve between the first feed source 171 and the third feed source 173; curve L17 represents the isolation curve between the first feed source 171 and the fourth feed source 174; curve L18 represents the isolation curve between the second feed source 172 and the third feed source 173; curve L19 represents the isolation curve between the second feed source 172 and the fourth feed source 174; and curve L20 represents the isolation curve between the third feed source 173 and the fourth feed source 174. As shown by curves L11 to L20, in this embodiment, the first feed 171, through the first matching circuit 181 and the second matching circuit 182, enables the first radiator 110 and the second radiator 120 to achieve UHB band coverage; the second feed 172, through the third matching circuit 183, enables the first radiator 110 and the second radiator 120 to achieve MHB band coverage. The first radiator 110 and the second radiator 120 can form a UHB+MHB antenna group and can be used as a gaming antenna. The third feed 173, through the fourth matching, enables the third radiator 130 and the fourth radiator 140 to achieve GPS+Wi-Fi 2.4G band coverage; the fourth feed 174, through the fifth matching, enables the third radiator 130 and the fourth radiator 140 to achieve UHB+Wi-Fi 5G band coverage. The third radiator 130 and the fourth radiator 140 can form a GPS+Wi-Fi 2.4G / Wi-Fi 5G+UHB antenna group to achieve short-range coverage. Furthermore, as can be seen from curves L11 to L20, when the above antenna groups work simultaneously, the isolation between each resonance is relatively good, and each resonance can work effectively and independently without being affected by other antennas in the same frequency band, thus achieving better antenna performance.

[0157] It should be noted that the antenna device 100 in this application embodiment can operate independently at one or more (two or more) of the first to eleventh resonances (or the first to twelfth resonances). The antenna device 100 may include components required for operating at one or more resonances. For example, when the antenna device 100 operates at the eighth resonance, it may include a third radiator 130, a third feed 173, and a fourth radiator 140 (it may also include a matching circuit corresponding to this resonance and other required components, which will not be detailed here, but can be referred to in the following description); when the antenna device 100 operates at the tenth resonance, it may include a fourth radiator 140 and a fourth feed 174; when the antenna device 100 operates at the ninth, tenth, and eleventh resonances, it may include a fourth radiator 140, a fourth feed 174, and a third radiator 130. Without conflict, the various embodiments of this application may be implemented individually or in combination, and this application embodiment does not limit this.

[0158] Please refer to the following: Figure 33 , Figure 33 This is an eighth structural schematic diagram of the antenna device 100 provided in the embodiments of this application. The antenna device 100 may further include a conductor connection segment 150.

[0159] One end of the conductor connecting segment 150 can be directly or indirectly connected to the fourth end 122 of the second radiator 120, and the other end of the conductor connecting segment 150 can be directly or indirectly connected to the fifth end 131 of the third radiator 130. Thus, the second radiator 120, the conductor connecting segment 150 and the third radiator 130 can be sequentially connected into a whole, and the conductor connecting segment 150 can increase the connection strength between the second radiator 120 and the third radiator 130.

[0160] It is understandable that the conductor connection segment 150 may not bear the main radiation effect; therefore, the antenna device 100 may have lower requirements for the antenna environment of the conductor connection segment 150. For example, but not limited to, the conductor connection segment 150 may be made of a narrower conductor, the height of the corresponding clearance area of ​​the conductor connection segment 150 may be lower, and the conductor connection segment 150 may be made of a flexible circuit board material.

[0161] Please combine Figure 33 Please refer to Figure 34 , Figure 34 for Figure 33The diagram shows an electrical connection schematic of the antenna device 100. When the second radiator 120, the conductor connecting section 150, and the third radiator 130 are connected as a whole, they together form an induction stub and are electrically connected to the Sar sensor 200. The Sar sensor 200 can use this induction stub to determine the proximity or distance of a person's head / hand, thereby determining the magnitude of the specific absorption rate (Sar). At this time, the antenna device 100 may also include a sixth matching circuit 186 and a seventh matching circuit 187. One end of the sixth matching circuit 186 may be directly or indirectly electrically connected to the fourth terminal 122 of the second radiator 120, and the other end of the sixth matching circuit 186 may be grounded. One end of the seventh matching circuit 187 may be directly or indirectly electrically connected to the third terminal 121 of the third radiator 130, and the other end of the seventh matching circuit 187 may be grounded. Both the sixth matching circuit 186 and the seventh matching circuit 187 may be open-circuited to the detection signal provided by the Sar sensor 200 to prevent the detection signal from returning to ground.

[0162] Understandably, the sixth matching circuit 186 and the seventh matching circuit 187 can be open-circuited for DC signals and short-circuited for AC signals, so that the excitation current provided by the first feed 171 and the second feed 172 that can flow on the second radiator 120 can be returned to ground from the sixth matching circuit 186, and the excitation current provided by the third feed 173 and the fourth feed 174 that can flow on the third radiator 130 can be returned to ground from the seventh matching circuit 187.

[0163] It is understood that the sixth matching circuit 186 and the seventh matching circuit 187 can be large capacitors, for example, but not limited to, capacitors with a capacitance value between 22pF (picofarad) and 100pF, so that the sensing stub can be in a "floating" state (the state where the DC current does not return to ground and the AC current can return to ground).

[0164] In the antenna device 100 of this application embodiment, the second radiator 120 and the third radiator 130 are connected as a whole by a conductor connecting section 150. On the one hand, there is no need to open a gap between the second radiator 120 and the third radiator 130, so as not to affect the appearance of the antenna device 100. On the other hand, the second radiator 120, the third radiator 130 and the conductor connecting section 150 are reused as the sensing stub of the Sar sensor 200, which can realize the miniaturization design of the antenna device 100.

[0165] Please refer to the following: Figure 35 , Figure 35 This is a ninth structural schematic diagram of the antenna device 100 provided in the embodiments of this application. The antenna device 100 may further include a fifth radiator 160.

[0166] The fifth radiator 160 can be directly or indirectly electrically connected to the first feed source 171, for example, but not limited to, the fifth radiator 160 can be directly or indirectly electrically connected to the second matching circuit 182. The first excitation current provided by the first feed source 171 can also excite the fifth radiator 160 to operate at the twelfth resonance in the twelfth frequency band. This twelfth resonance can be different from the first resonance and the second resonance.

[0167] It is understandable that the twelfth frequency band corresponding to the twelfth resonance can be the UHB band, for example, but not limited to, the N79 band. Of course, by adjusting the size of the fifth radiator 160 and the matching circuit of the electrical connection, the fifth radiator 160 can also operate on wireless signals in other frequency bands, which will not be detailed here.

[0168] It is understood that the fifth radiator 160 can be spaced apart from the first radiator 110, or it can be directly or indirectly connected to the first radiator 110 to form a whole. The antenna forms of the fifth radiator 160 and the first radiator 110 can be the same or different; for example, but not limited to, the first radiator 110 being a frame 420 antenna, and the fifth radiator 160 being an FPC antenna or an LDS antenna. It should be noted that this application embodiment does not specifically limit the specific placement, formation method, or supported frequency bands of the first radiator 110 and the fifth radiator 160.

[0169] It is understandable that, such as Figure 35 As shown, the antenna device 100 may also include a matching circuit, such as a tenth matching circuit 188, which may be connected in series between the fifth radiator 160 and the first feed 171 to perform impedance matching on the excitation current fed into the fifth radiator 160 by the first feed 171.

[0170] In this embodiment of the application, when the first feed 171 provides the first excitation current I1, the antenna device 100 can support the N78 and N79 frequency bands of UHB. The first radiator 110 and the second radiator 120 adopt the common aperture technology, which can improve the antenna space reuse rate and ensure the radiation performance of the game antenna.

[0171] Based on the structure of the antenna device 100 described above, this application also provides an electronic device 10. The electronic device 10 can be a smartphone, tablet computer, or other similar device, or it can be a gaming device, augmented reality (AR) device, automotive device, data storage device, audio playback device, video playback device, laptop computer, desktop computing device, etc. Please refer to... Figure 36 , Figure 36This is a schematic diagram of a first structure of an electronic device 10 provided in an embodiment of this application. The electronic device 10 may include the antenna device 100 in any of the above embodiments.

[0172] The electronic device 10 may also include a display screen 300, a mid-frame 400, a circuit board 500, a battery 600, and a back cover 700.

[0173] The display screen 300 is disposed on the mid-frame 400 to form the display surface of the electronic device 10 for displaying images, text, and other information. The display screen 300 may include a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen, among other types.

[0174] The middle frame 400 may include a middle plate 410 and a frame 420. The middle plate 410 may be a thin plate or sheet structure, and the frame 420 may be a hollow frame structure. The middle frame 400 provides support for electronic devices or functional components in the electronic device 10, so as to mount the electronic devices or functional components of the electronic device 10 together. For example, the middle frame 400 may have structures such as grooves, protrusions, and through holes to facilitate the mounting of electronic devices or functional components of the electronic device 10. It is understood that the material of the middle frame 400 may include metal or plastic.

[0175] The circuit board 500 is mounted on the mid-frame 400 for fixation and is sealed inside the electronic device 10 by the rear cover 700. The circuit board 500 may integrate a processor, and may also integrate one or more functional components such as a headphone jack, accelerometer, gyroscope, and motor. Simultaneously, the display screen 300 can be electrically connected to the circuit board 500 to control the display via the processor on the circuit board 500. It is understood that one or more of the aforementioned feed source and adjustment circuits of the electronic device 10 can be mounted on the circuit board 500. Of course, these components can also be mounted on a smaller board of the electronic device 10; this is not limited here.

[0176] The battery 600 is mounted on the mid-frame 400 and sealed inside the electronic device 10 by the rear cover 700. The battery 600 is electrically connected to the circuit board 500 to power the electronic device 10. The circuit board 500 may contain a power management circuit. This power management circuit distributes the voltage provided by the battery 600 to the various electronic components within the electronic device 10.

[0177] The back cover 700 is connected to the middle frame 400. For example, the back cover 700 can be attached to the middle frame 400 using an adhesive such as double-sided tape to achieve the connection with the middle frame 400. The back cover 700, together with the middle frame 400 and the display screen 300, seals the electronic components and functional parts of the electronic device 10 inside the electronic device 10, thereby providing protection for the electronic components and functional parts of the electronic device 10.

[0178] In this regard, please combine Figure 36 Please refer to Figure 37 , Figure 37 This is a schematic diagram of a second structure of the electronic device 10 provided in an embodiment of this application. When... Figure 36 When viewed from the front, Figure 37 This is a rear view of electronic device 10. Figure 36 The front of the electronic device 10 is a display screen 300, and the back is a back cover 700. Figure 37 The front of the electronic device 10 is a back cover 700, and the back is a display screen 300. The electronic device 10 may include a bezel 420, such as a long bezel 421.

[0179] The long border 421 can be a border 420 of the electronic device 10. The electronic device 10 may also include a short border 422 disposed opposite to the long border 421. The length of the short border 422 may be less than the length of the long border 421. The short border 422 may be directly or indirectly connected to the long border 421, but is not limited to this.

[0180] The antenna device 100 can be positioned relative to the frame 420 of the electronic device 10. For example, the first radiator 110 and the second radiator 120 of the antenna device 100 can be positioned relative to the long frame 421 of the electronic device 10. For example, when the long frame 421 is a conductor structure, the first radiator 110 and the second radiator 120 can be formed on the long frame 421 by opening slits to form radiating branches (in this case, the projections of the first radiator 110 and the second radiator 120 are located on the long frame 421); for another example, the first radiator 110 and the second radiator 120 can also be directly or indirectly connected to the long frame 421 and the projections of the first radiator 110 and the second radiator 120 can be located on the long frame 421; for yet another example, the first radiator 110 and the second radiator 120 can be spaced apart from the long frame 421, but the projections of the first radiator 110 and the second radiator 120 are located on the long frame 421. The specific structure of the first radiator 110, the second radiator 120 and the long frame 421 is not limited in the embodiments of this application.

[0181] It is understandable that the electronic device 10 can be used in both landscape and portrait orientations. A portrait orientation refers to the user placing the electronic device 10 vertically so that the short bezel 422 of the electronic device 10 is at the top or bottom of the device (e.g., ...). Figure 37 As shown, Figure 37 The diagram illustrates the electronic device 10 in portrait mode. In this position, the user typically covers the bottom short bezel 422 of the electronic device 10 when holding it. Please refer to... Figure 37 Please refer to Figure 38 , Figure 38 for Figure 37 The diagram shows an application scenario of the electronic device 10. Figure 38 The front of the electronic device 10 is a display screen, and the back is a back cover 700. The left side of the electronic device 10 is the upper half of the display screen 300 in portrait mode, and the right side of the electronic device 10 is the lower half of the display screen 300 in portrait mode. The landscape handheld scenario refers to the user placing the electronic device 10 horizontally so that the long bezel 421 of the electronic device 10 is at the top or bottom of the electronic device 10. Since the long bezel 421 is relatively long, when the user holds the electronic device 10, it often covers part of the bottom area of ​​the long bezel 421 of the electronic device 10. The area of ​​the long bezel 421 that is not easily covered in the landscape handheld scenario can be used as the preset area of ​​the long bezel 421.

[0182] It is understood that the electronic device 10 can be configured such that the first radiator 110 and the second radiator 120 are positioned relative to the preset area, so that when the electronic device 10 is in a landscape handheld scenario, the user holding the electronic device 10 will at least not cover the first coupling gap 101. Thus, the user's handholding behavior is unlikely to affect the first excitation current I1, which is electromagnetically coupled to the second radiator 120 through the first coupling gap 101 to operate at the first resonance and the second resonance, and is also unlikely to affect the second excitation current I2, which is coupled to the first radiator 110 through the first coupling gap 101 to operate at the fifth resonance. The antenna device 100 and the electronic device 10 can also have better antenna performance in the user handholding scenario.

[0183] For example, please refer to Figure 37 and Figure 38 Please refer to Figure 39 , Figure 39 for Figure 38 The diagram shows the system efficiency curves of the electronic device 10 when it supports wireless signals in landscape handheld and non-handheld states. Figure 39Curve L21 represents the system efficiency curve of the antenna device 100 when the first feed 171 is operating in a non-hand-held state; curve L22 represents the system efficiency curve of the antenna device 100 when the second feed 172 is operating in a non-hand-held state; curve L23 represents the system efficiency curve of the antenna device 100 when the first feed 171 is operating in a landscape hand-held state; and curve L24 represents the system efficiency curve of the antenna device 100 when the second feed 172 is operating in a landscape hand-held state. Comparing curves L21 and L23, and curves L22 and L24, it can be seen that when the electronic device 10 is in a landscape hand-held scenario, the antenna device 100 experiences a performance drop of 0.9dB-2.9dB across the UHB and MHB bands, respectively, and the performance of the antenna device 100 can still be maintained at a high level. By setting the first radiator 110 and the second radiator 120 relative to the long frame 421, compared with the scheme of setting the first radiator 110 and the second radiator 120 relative to the short frame 422, the antenna efficiency reduction of the first radiator 110 and the second radiator 120 set relative to the long frame 421 in the embodiment of this application is smaller in the landscape handheld scenario.

[0184] Understandably, in order to further avoid the impact of the user's hand holding the antenna device 100, such as Figure 36 As shown, the first radiator 110 and the second radiator 120 can be positioned relative to the long bezel 421 at the top of the electronic device 10 in the landscape handheld state.

[0185] Understandably, to further minimize the impact of user interaction with the antenna device 100, the range of the preset area can be adjusted so that, in a landscape handheld scenario, the user does not need to hold the first radiator 110 and the second radiator 120, thereby further reducing the impact of hand grip on the performance of the antenna device 100. Alternatively, the range of the preset area can be adjusted so that the user can partially or completely block the first radiator 110 and the second radiator 120 without blocking the first coupling gap 101. This application embodiment does not limit the specific placement of the first radiator 110 and the second radiator 120.

[0186] In the antenna device 100 of this application embodiment, the first radiator 110 and the second radiator 120 are arranged relative to the long frame 421 of the electronic device 10. In a landscape handheld scenario, the user is less likely to cover the first coupling gap 101, and the user's handheld grip has little impact on the electronic device 10.

[0187] Please refer to the following: Figure 40 and Figure 41 , Figure 40 This is a schematic diagram of a third structure of the electronic device 10 provided in the embodiments of this application. Figure 41This is a schematic diagram of a fourth structure of the electronic device 10 provided in the embodiments of this application. Figure 40 , Figure 41 The front of the electronic device 10 is a back cover 700, and the back is a display screen 300. The electronic device 10 may include a long frame 421 and a short frame 422 that are bent and connected to each other.

[0188] The first radiator 110 and the second radiator 120 can be positioned relative to the long frame 421; a portion of the third radiator 130 can be positioned relative to the long frame 421, another portion of the third radiator 130 can be positioned relative to the short frame 422, and the fourth radiator 140 can be positioned relative to the short frame 422; thus, the MHB+UHB game antenna group composed of the first radiator 110 and the second radiator 120 can be positioned relative to the long frame 421; the GPS+Wi-Fi 2.4G / 5G+UHB antenna group composed of the third radiator 130 and the fourth radiator 140 can be positioned relative to the corner of the electronic device 10; the conductor connection segment 150 between the second radiator 120 and the third radiator 130 is positioned relative to the long frame 421 and can be reused as the button structure of the electronic device 10.

[0189] It is understood that the electronic device 10 may include one or more of the above-described arrangement of the first radiator 110, the second radiator 120, the third radiator 130, the fourth radiator 140 and the conductor connection segment 150, which will not be described in detail in this application embodiment.

[0190] It is understood that the aforementioned arrangement of the radiator relative to the long / short frame 422 can mean that the radiator is formed on the long / short frame 422 of the conductor structure, or that the radiator is directly or indirectly connected to the long / short frame 422 and projected onto the long / short frame 422, or that the radiator is spaced apart from the long / short frame 422 but projected onto the long / short frame 422. This application embodiment does not limit the specific location of the radiator.

[0191] The antenna device 100 and electronic device 10 of this application embodiment can form a aperture antenna with the first radiator 110 and the second radiator 120 to achieve a wideband gaming antenna that covers the MHB+UHB frequency band without switching. On the one hand, the first radiator 110 and the second radiator 120 use a common aperture mode to meet the domestic and international UHB-N77 / N78 wideband (3300MHz-4100MHz) coverage requirements. On the other hand, the common aperture mode has high space utilization, which is conducive to better stacking of the whole device. Furthermore, the antenna device 100 can achieve wideband coverage without switching, effectively saving internal space of the electronic device 10 and reducing overall cost. At the same time, the first radiator 110 and the second radiator 120 are set relative to the long bezel 421, so the radiation performance of the antenna device 100 is still high in the scenario of playing games with both hands in landscape mode, which can achieve smooth gaming.

[0192] In this regard, please combine Figure 33 , Figure 40 and Figure 41 The conductor connection segment 150 of the antenna device 100 can receive user pressing operations. The conductor connection segment 150 can serve as a button structure of the electronic device 10, for example, but not limited to, the conductor connection segment 150 can serve as a volume button, power button, switch control button, etc. When the conductor connection segment 150 serves as a button structure, the conductor connection segment 150 can be exposed on the outside of the antenna device 100 or the electronic device 10 to receive user pressing operations.

[0193] It is understood that the length of the conductor connection segment 150 can be adaptively adjusted according to the size of the button structure. This application does not limit this aspect.

[0194] In this regard, please combine Figure 34 , Figure 40 and Figure 41 The Sar sensor 200 can be a component of the antenna device 100 or the electronic device 10, or it can be a component of other devices. The Sar sensor 200 can provide a detection signal that can flow on the sensing branch formed by the second radiator 120, the conductor connecting section 150, and the third radiator 130. When a human body approaches, the detection signal will change. The Sar sensor 200 can determine whether a person's head / hand is approaching or moving away by the change in the detection signal, thereby determining the Sar value of the electronic device 10.

[0195] Understandably, in antenna design, the Sar value is often used to evaluate the impact of electromagnetic radiation generated by electronic device 10 on the human body. The larger the Sar value, the greater the impact on the human body. In this embodiment, Sar sensor 200 uses sensing stubs to determine the Sar value. The sensing stubs and a part of the human body (such as a hand) form an equivalent capacitor. There is an equivalent capacitance between them. The capacitance increases when the distance decreases and decreases when the distance increases. When the user is not close to the sensing stubs, Sar sensor 200 can determine that the detection signal is within a preset range. When the user is close to the sensing stubs, the data of the detection signal detected by Sar sensor 200 can change significantly. Through this change, Sar sensor 200 can determine whether the user is approaching or moving away, and can also determine whether the Sar value of antenna device 100 exceeds the specified Sar value threshold, so that electronic device 10 can adjust the transmission power of multiple resonators or execute power back-off events according to the Sar value.

[0196] It should be noted that the second radiator 120, the conductor connecting segment 150, and the third radiator 130 forming a whole are not limited to being reused as a button or a sensing segment of the Sar sensor 200. For example, but not limited to, the three forming a whole can increase the structural strength of the antenna device 100. This application embodiment does not limit this.

[0197] It should be noted that one, two, three, or four of the first radiator 110, second radiator 120, third radiator 130, and fourth radiator 140 in this application embodiment can also be reused as sensing branches of the Sar sensor 200. For example, but not limited to, an eighth matching circuit that passes DC and blocks AC can be connected in series between the first end 111 of the first radiator 110 and the ground plane, or another ninth matching circuit that passes DC and blocks AC can be connected in series between the eighth end 142 of the fourth radiator 140 and the ground plane. It is understood that the antenna device 100 may include at least one of the sixth matching circuit 186, seventh matching circuit 187, eighth matching circuit, and ninth matching circuit, so that at least one of the first radiator 110, second radiator 120, third radiator 130, and fourth radiator 140 is in a "floating" state. Of course, if two adjacent radiators are connected as a whole by a conductor, multiple matching circuits need to be set so that the entire branch is in a "floating" state. This application embodiment does not specifically limit this.

[0198] In this embodiment, the antenna device 100 and electronic device 10, the second radiator 120, the conductor connecting segment 150, and the third radiator 130 together form the sensing segment of the Sar sensor 200. The entire sensing segment can be in a suspended state to detect different distances of a person / hand approaching the antenna device 100 or electronic device 10 and adjust the power value accordingly, improving the user experience. Furthermore, the sixth matching circuit 186 and the seventh matching circuit 187 use large capacitors to return to ground, so that the matching circuit has little impact on the frequency band of the wireless signal supported by the third radiator 130 and the fourth radiator 140, avoiding increasing the difficulty of antenna tuning. At the same time, the conductor connecting segment 150 can be reused as a volume or power button of the electronic device 10. By using the same antenna design, different ID appearance requirements can be taken into account, which can meet the compatibility requirements of different electronic devices 10. Reusing the conductor connecting segment 150 as a button has little impact on the antenna device 100.

[0199] The antenna device 100 and electronic device 10 of this application embodiment, with the third radiator 130 and the fourth radiator 140 forming an aperture antenna, can support GPS+Wi-Fi 2.4G / 5G+UHB, achieving short-range coverage. Furthermore, the entire antenna device 100 can achieve multi-band wide coverage performance of MHB+UHB+GPS+Wi-Fi 2.4G+Wi-Fi 5G, broadening the antenna bandwidth without increasing switching costs. Moreover, the antenna device 100 of this application embodiment, through different matching circuits, can achieve the high isolation requirements of each frequency band, further improving the radiation performance of each frequency band.

[0200] It is understood that the above are merely exemplary examples of the electronic device 10. The electronic device 10 in this application embodiment may also include components such as a camera, a sensor, and a sound-to-electric conversion device. These components can be found in the descriptions in related technologies and will not be repeated here.

[0201] It should be noted that the above embodiments can be combined arbitrarily without conflict, and the combined embodiments are still within the protection scope of the embodiments of this application. It should be understood that in the description of this application, terms such as "first" and "second" are only used to distinguish similar objects, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0202] The antenna device and electronic device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application, and the descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An antenna device, characterized in that, include: The first radiator includes a first end and a second end, and a first feed point disposed between the first end and the second end, wherein the first end is grounded; The first feed source is electrically connected to the first feed point and is used to provide the first excitation current; The second radiator includes a third end and a fourth end, an electrical connection point disposed between the third end and the fourth end, and a second feed point disposed between the electrical connection point and the fourth end. A first coupling gap is provided between the third end and the second end. The third end is located between the second end and the fourth end, and the fourth end is grounded. and The first matching circuit is electrically connected to the electrical connection point, and the first excitation current is coupled to the second radiator through the first coupling gap and short-circuited back to ground through the first matching circuit. A second feed source is electrically connected to the second feed point and used to provide a second excitation current; the first matching circuit is used to open-circuit the second excitation current; wherein... The first excitation current flows in the same direction on the first conductor segment between the first feed point and the second terminal and on the second conductor segment between the electrical connection point and the third terminal, and excites the first conductor segment and the second conductor segment to work together at the first resonance and support the first frequency band; the first excitation current also flows in opposite directions on the first conductor segment and the second conductor segment, and excites the first conductor segment and the second conductor segment to work together at the second resonance and support the second frequency band; the first frequency band and the second frequency band together cover 3300MHz to 4100MHz; The second excitation current is used to excite the second radiator to operate at the third resonance and support the third frequency band, and also to excite the third conductor segment between the second feed point and the third terminal to operate at the fourth resonance and support the fourth frequency band, and also to couple to the first radiator through the first coupling gap and excite the first radiator to operate at the fifth resonance and support the fifth frequency band; the third frequency band, the fourth frequency band and the fifth frequency band together cover the mid-to-high frequency band.

2. The antenna device according to claim 1, characterized in that, The first conductor segment operates in a quarter-wavelength mode and the second conductor segment operates in a quarter-wavelength mode together at the first resonance or together at the second resonance.

3. The antenna device according to claim 1, characterized in that, The center frequency of the second frequency band is higher than the center frequency of the first frequency band.

4. The antenna device according to claim 1, characterized in that, The first matching circuit includes a first inductor and a first capacitor, which are connected in series between the electrical connection point and the ground plane.

5. The antenna device according to claim 1, characterized in that, Also includes: The second matching circuit is connected in series between the first feed source and the first feed point. The second matching circuit is used to perform impedance matching adjustment on the first excitation current.

6. The antenna device according to claim 5, characterized in that, The second matching circuit includes a second capacitor, a second inductor, a third capacitor, and a third inductor. One end of the second inductor is electrically connected to the first feed source. One end of the second capacitor is electrically connected between the second inductor and the first feed source, and the other end is grounded. One end of the third capacitor and one end of the third inductor are electrically connected to the other end of the second inductor, and the other end of the third capacitor and the other end of the third inductor are electrically connected to the first feed point.

7. The antenna device according to claim 1, characterized in that, The second radiator operates in a quarter-wavelength mode at the third resonance; or, the third conductor segment operates in a quarter-wavelength mode at the fourth resonance; or, the first radiator operates in a quarter-wavelength mode at the fifth resonance.

8. The antenna device according to claim 1, characterized in that, Also includes: The third matching circuit is connected in series between the second feed source and the second feed point. The third matching circuit is used to perform impedance matching adjustment on the second excitation current.

9. The antenna device according to claim 8, characterized in that, The third matching circuit includes a fourth inductor, a fourth capacitor, a fifth inductor, and a fifth capacitor. One end of the fifth inductor is electrically connected to the second feed source, and the other end is electrically connected to one end of the fifth capacitor. The other end of the fifth capacitor is electrically connected to the second feed point. One end of the fourth inductor and one end of the fourth capacitor are electrically connected between the fifth inductor and the second feed source. The other ends of the fourth inductor and the fourth capacitor are both grounded.

10. The antenna device according to any one of claims 1 to 9, characterized in that, Also includes: The third radiator includes a fifth end and a sixth end, and a third feed point disposed between the fifth end and the sixth end. The fifth end is located between the sixth end and the second radiator, and the fifth end is grounded. The third feed source is electrically connected to the third feed point and is used to provide the third excitation current; wherein... The third excitation current is used to excite the fourth conductor segment between the fifth terminal and the third feed point to operate at the sixth resonance; and / or, The third excitation current is also used to excite the fifth conductor segment between the third feed point and the sixth terminal to operate at the seventh resonance.

11. The antenna device according to claim 10, characterized in that, The fourth conductor segment operates at the sixth resonance in an eighth-wavelength mode; or, the fifth conductor segment operates at the seventh resonance in a quarter-wavelength mode.

12. The antenna device according to claim 10, characterized in that, Also includes: The fourth radiator includes a seventh end and an eighth end, the seventh end being located between the eighth end and the sixth end, a second coupling gap being provided between the seventh end and the sixth end, and the eighth end being grounded; The third excitation current is also used to couple to the fourth radiator via the second coupling gap and excite the fourth radiator to operate at the eighth resonance.

13. The antenna device according to claim 12, characterized in that, The fourth radiator operates at the eighth resonance in a quarter-wavelength mode.

14. The antenna device according to claim 12, characterized in that, The sixth frequency band supported by the sixth resonance, the seventh frequency band supported by the seventh resonance, and the eighth frequency band supported by the eighth resonance together cover the GPS frequency band and the 2.4G frequency band of Wi-Fi.

15. The antenna device according to claim 12, characterized in that, The fourth radiator further includes a fourth feed point disposed between the seventh end and the eighth end; the antenna device further includes: A fourth feed source, electrically connected to the fourth feed point, is used to provide a fourth excitation current; wherein, The fourth excitation current is used to couple to the third radiator through the second coupling gap, and to excite the sixth conductor segment and the fifth conductor segment between the fourth feed point and the seventh end to work together at the ninth resonance; The fourth excitation current is also used to excite the sixth conductor segment to operate at the tenth resonance. The fourth excitation current is also used to couple to the third radiator via the second coupling gap and excite the third radiator to operate at the eleventh resonance.

16. The antenna device according to claim 15, characterized in that, The sixth conductor segment and the fifth conductor segment together operate in a quarter-wavelength mode at the ninth resonance; or, the sixth conductor segment operates in a quarter-wavelength mode at the tenth resonance; or, the third radiator operates in a three-quarter-wavelength mode at the eleventh resonance.

17. The antenna device according to claim 15, characterized in that, The ninth frequency band supported by the ninth resonance, the tenth frequency band supported by the tenth resonance, and the eleventh frequency band supported by the eleventh resonance together cover the ultra-high frequency band and the 5G frequency band of Wi-Fi.

18. The antenna device according to claim 15, characterized in that, Also includes: A fourth matching circuit is connected in series between the third feed source and the third feed point; wherein, The fourth excitation current is coupled to the third radiator through the second coupling gap and short-circuited back to ground through the fourth matching circuit.

19. The antenna device according to claim 18, characterized in that, The fourth matching circuit includes a sixth capacitor, a sixth inductor, a seventh capacitor, a seventh inductor, an eighth capacitor, an eighth inductor, a ninth capacitor, and a tenth capacitor. The sixth, eighth, and tenth capacitors are connected in series between the third feed source and the third feed point. One end of the sixth inductor and one end of the seventh capacitor are electrically connected between the sixth and eighth capacitors, and the other ends of the sixth inductor and the seventh capacitor are grounded. The seventh inductor is connected in parallel across the eight capacitors. One end of the eighth inductor and one end of the ninth capacitor are electrically connected between the eighth and tenth capacitors, and the other ends of the eighth inductor and the ninth capacitor are grounded.

20. The antenna device according to claim 15, characterized in that, Also includes: The fifth matching circuit is connected in series between the fourth feed source and the fourth feed point. The fifth matching circuit is used to perform impedance matching adjustment on the fourth excitation current.

21. The antenna device according to claim 20, characterized in that, The fifth matching circuit includes a ninth inductor, an eleventh capacitor, a tenth inductor, a twelfth capacitor, and an eleventh inductor. The ninth inductor and the twelfth capacitor are connected in series between the fourth feed source and the fourth feed point. One end of the eleventh capacitor is electrically connected between the ninth inductor and the twelfth capacitor, and the other end is grounded. The tenth inductor is connected in parallel across the twelfth capacitor. One end of the eleventh inductor is electrically connected between the twelfth capacitor and the fourth feed point, and the other end is grounded.

22. The antenna device according to claim 10, characterized in that, Also includes: A conductor connection segment, one end of which is connected to the fourth end and the other end of which is connected to the fifth end; The sixth matching circuit has one end electrically connected to the fourth terminal and the other end grounded. and The seventh matching circuit has one end electrically connected to the fifth terminal and the other end grounded; wherein, The second radiator, the conductor connecting segment, and the third radiator together form an induction stub and are used to electrically connect with the Sar sensor. The Sar sensor is used to determine the magnitude of the electromagnetic wave absorption ratio of the antenna device through the detection signal. The sixth matching circuit and the seventh matching circuit are equivalent to opening the detection signal.

23. The antenna device according to claim 10, characterized in that, Also includes: A conductor connection segment, one end of which is connected to the fourth end and the other end of which is connected to the fifth end, is used to receive the user's pressing operation.

24. The antenna device according to any one of claims 1 to 9, characterized in that, Also includes: The third radiator includes a fifth end and a sixth end, and a third feed point disposed between the fifth end and the sixth end. The fifth end is located between the sixth end and the second radiator, and the fifth end is grounded. The third feed source is electrically connected to the third feed point and is used to provide the third excitation current; The fourth radiator includes a seventh end and an eighth end, the seventh end being located between the eighth end and the sixth end, a second coupling gap being provided between the seventh end and the sixth end, and the eighth end being grounded; wherein, The third excitation current is used to couple to the fourth radiator through the second coupling gap and excite the fourth radiator to operate at the eighth resonance in the eighth frequency band.

25. The antenna device according to any one of claims 1 to 9, characterized in that, Also includes: The fourth radiator includes a seventh terminal and an eighth terminal, and a fourth feed point disposed between the seventh terminal and the eighth terminal. The seventh terminal is located between the second radiator and the eighth terminal, and the eighth terminal is grounded. and The fourth feed source is electrically connected to the fourth feed point and is used to provide a fourth excitation current, which is used to excite the sixth conductor segment between the fourth feed point and the seventh terminal to operate at the tenth resonance in the tenth frequency band.

26. The antenna device according to claim 25, characterized in that, Also includes: The third radiator includes a fifth end and a sixth end, and a third feed point disposed between the fifth end and the sixth end. The fifth end is located between the sixth end and the second radiator and is grounded. The sixth end is located between the fifth end and the seventh end, and a second coupling gap is provided between the sixth end and the seventh end. The fourth feed source is also used to provide a fourth excitation current, which is used to couple to the third radiator through the second coupling gap, and to excite the sixth conductor segment and the fifth conductor segment between the sixth end and the third feed point to work together at the ninth resonance in the ninth frequency band. The fourth excitation current is also used to couple to the third radiator via the second coupling gap and excite the third radiator to operate at the eleventh resonance in the eleventh frequency band.

27. The antenna device according to any one of claims 1 to 9, characterized in that, Also includes: The fifth radiator is electrically connected to the first feed source, and the first excitation current is also used to excite the fifth radiator to operate at the twelfth resonance in the twelfth frequency band.

28. The antenna device according to claim 27, characterized in that, The twelfth frequency band includes the N79 frequency band.

29. An electronic device, characterized in that, Includes the antenna device as described in any one of claims 1 to 28.

30. The electronic device according to claim 29, characterized in that, The electronic device includes a long bezel, and the first radiator and the second radiator are positioned relative to a preset area of ​​the long bezel so that, in a landscape handheld scenario, the user holds the electronic device without covering the first coupling gap.

31. An electronic device, characterized in that, The device includes an antenna apparatus as described in any one of claims 10 to 24 and 26; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator and the second radiator are disposed relative to the long frame, a portion of the third radiator is disposed relative to the long frame, and another portion of the third radiator is disposed relative to the short frame.

32. An electronic device, characterized in that, The device includes the antenna apparatus as described in claim 22 or 23; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator, the second radiator and the conductor connecting segment are disposed relative to the long frame, a portion of the third radiator is disposed relative to the long frame and another portion of the third radiator is disposed relative to the short frame.

33. An electronic device, characterized in that, The electronic device includes the antenna device as described in any one of claims 12 to 21 and 24 to 26; the electronic device further includes a long frame and a short frame that are bent and connected; wherein the first radiator and the second radiator are disposed relative to the long frame, and the fourth radiator is disposed relative to the short frame.

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