Antenna device and electronic equipment

Abstract

The invention relates to an antenna device and electronic equipment. The antenna device comprises a first radiator, a second radiator, a first feed source, a second feed source and a first tuning circuit, a first gap is arranged between the first radiator and the second radiator, and the first feed source feeds a first feed signal into the first radiator through a first feed point to enable the first radiator to support a first frequency band. The second feed source feeds a second feed signal into the second radiator through the second feed point to enable the second radiator to support a second frequency band, and the first tuning circuit is connected with the first connection point, the second connection point and the common ground end. The first tuning circuit is used for selectively conducting a path between the first radiator and the common ground end and a path between the second radiator and the common ground end so as to switch and adjust resonance modes excited by the first radiator and the second radiator. According to the antenna device, a plurality of frequency bands are supported by using fewer tuning circuits, so that the occupied space is saved, the miniaturization design is facilitated, and the cost is reduced.

Description

Technical Field

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

[0002] With the development of technology, electronic devices with communication functions (e.g., mobile phones, tablets, etc.) are becoming more and more popular and more powerful. Electronic devices usually include antenna devices to realize the communication function of electronic devices. The antenna devices in electronic devices in the related art can support multiple frequency bands, but their cost is relatively high. Summary of the invention

[0003] The embodiments of the present application provide an antenna device and an electronic device, which can realize carrier aggregation of multiple frequency bands while reducing the number of tuning circuits to reduce costs.

[0004] In a first aspect, an embodiment of the present application provides an antenna device, comprising: a first radiating branch, a second radiating branch, a first feed source, a second feed source, and a first tuning circuit, wherein a first gap is provided between the first radiating branch and the second radiating branch, a first feeding point and a first connection point are provided on the first radiating branch, a second feeding point, a second connection point, and a first grounding point are provided on the second radiating branch, the first grounding point is grounded, and the first connection point and the second connection point are provided close to the first gap;

[0005] The first feed source feeds a first feed signal to the first radiation branch through the first feeding point so that the first radiation branch supports a first frequency band;

[0006] The second feed source feeds a second feed signal to the second radiation branch through the second feeding point so that the second radiation branch supports a second frequency band;

[0007] The first tuning circuit is connected to the first connection point, the second connection point and the common ground terminal respectively, and the first tuning circuit is used to select the path between the first radiation branch and the common ground terminal, and the second radiation branch and the common ground terminal to adjust the resonant mode excited by the first radiation branch and the second radiation branch.

[0008] In a second aspect, an embodiment of the present application provides an electronic device, including: the aforementioned antenna device.

[0009] The above-mentioned antenna device and electronic device, wherein the antenna device includes a first radiator, a second radiator, a first feed source, a second feed source and a first tuning circuit, a first gap is provided between the first radiator and the second radiator, a first feeding point and a first connecting point are provided on the first radiator, a second feeding point, a second connecting point and a first grounding point are provided on the second radiator, the first grounding point is grounded, the first connecting point and the second connecting point are arranged close to the first gap, the first feed source feeds a first feeding signal to the first radiator through the first feeding point so that the first radiator supports the first frequency band, the second feed source feeds a second feeding signal to the second radiator through the second feeding point so that the second radiator supports the second frequency band, the first tuning circuit is respectively connected to the first connecting point, the second connecting point and the common ground terminal, and the first tuning circuit is used to select and conduct the paths between the first radiator and the common ground terminal and the second radiator and the common ground terminal to switch and adjust the resonant modes excited by the first radiator and the second radiator. In the antenna device provided in the embodiment of the present application, the first radiator and the second radiator can reuse the first tuning circuit, so that the first radiator can support the first frequency band and the second radiator can support the second frequency band, thereby supporting multiple frequency bands with fewer tuning circuits, saving the space occupied by the antenna device, being conducive to the miniaturized design of the antenna device, and further reducing the cost of the antenna device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 One of the structural schematic diagrams of an antenna device provided by an embodiment;

[0012] Figure 2 A second structural schematic diagram of an antenna device provided by an embodiment;

[0013] Figure 3 A third structural schematic diagram of an antenna device provided by an embodiment;

[0014] Figure 4 A fourth structural schematic diagram of an antenna device provided by an embodiment;

[0015] Figure 5 A fifth structural diagram of an antenna device provided in an embodiment;

[0016] Figure 6 A sixth structural schematic diagram of an antenna device provided in an embodiment;

[0017] Figure 7 A seventh structural diagram of an antenna device provided in an embodiment;

[0018] Figure 8 An eighth structural schematic diagram of an antenna device provided by an embodiment;

[0019] Fig. 9 A ninth structural diagram of an antenna device provided by an embodiment;

[0020] Fig.10 A tenth structural schematic diagram of an antenna device provided by an embodiment;

[0021] Fig.11 An eleventh structural diagram of an antenna device provided by an embodiment;

[0022] Fig.12 A twelfth structural diagram of an antenna device provided by an embodiment;

[0023] Fig.13 A thirteenth schematic diagram of the structure of an antenna device provided in an embodiment;

[0024] Fig.14 A fourteenth structural diagram of an antenna device provided in an embodiment;

[0025] Fig.15 A fifteenth structural schematic diagram of an antenna device provided in an embodiment;

[0026] Fig.16 A sixteenth structural diagram of an antenna device provided in an embodiment;

[0027] Fig.17 A seventeenth structural diagram of an antenna device provided in an embodiment;

[0028] Fig.18 An eighteenth structural diagram of an antenna device provided by an embodiment;

[0029] Fig.19 A nineteenth structural schematic diagram of an antenna device provided in an embodiment;

[0030] Fig. 20 A twentieth structural diagram of an antenna device provided in an embodiment;

[0031] Fig.21 A twenty-first structural schematic diagram of an antenna device provided in an embodiment;

[0032] Fig. 22 is a schematic structural diagram of an electronic device including an antenna device in one embodiment;

[0033] Fig.23 is a schematic structural diagram of an electronic device including an antenna device in another embodiment;

[0034] Fig.24 FIG. 4 is a schematic structural diagram of an electronic device including an antenna device in yet another embodiment.

[0035] Description of Figure Numbers:

[0036] 101-first gap, 102-second gap, 103-third gap, 104-fourth gap, 105-fifth gap, 106-sixth gap, 107-seventh gap, 108-eighth gap, 109-ninth gap, 200-tenth gap, 110-first radiator, 111-first sub-radiator, 112-second sub-radiator, 120-second radiator, 121-second sub-parasitic branch, 122-second sub-radiation branch, 123-third sub-radiator, 130-third radiator, 131-fourth sub-radiator, 132-fifth sub-radiator, 133-sixth sub-radiator, 140-fourth radiator, 141-seventh sub-radiator, 142-tenth sub-radiator, 143-third Eleven sub-radiators, 150-fifth sub-radiator, 151-eighth sub-radiator, 152-ninth sub-radiator, 160-sixth radiator, 170-seventh radiator, 171-twelfth sub-radiator, 210-first tuning circuit, 220-second tuning circuit, 230-third tuning circuit, 240-fourth tuning circuit, 310-first parasitic branch, 311-first sub-parasitic branch, 320-second parasitic branch, 321-third sub-parasitic branch, 40-electronic device, 410-antenna device, 420-first RF front-end module, 430-second RF front-end module, 440-first power supply module, 450-third RF front-end module, 460-second power supply module, 470-switch module.

[0037] Detailed implementation method

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] The antenna device involved in the embodiment of the present application can be applied to electronic devices with wireless communication functions, and the electronic devices can be handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., mobile phones), mobile stations (MS), etc. For the convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

[0043] like Figure 1As shown, an embodiment of the present application provides an antenna device. The antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2 and a first tuning circuit 210. Among them, a first gap 101 is provided between the first radiator 110 and the second radiator 120. The first gap 101 can be used as a coupling gap between the first radiator 110 and the second radiator 120, and is used to achieve capacitive coupling between the first radiator 110 and the second radiator 120. It should be noted that the width of the first gap 101 between the first radiator 110 and the second radiator 120 can be determined according to actual conditions, and it needs to meet the minimum size that the first radiator 110 and the first parasitic branch 120 can be coupled.

[0044] A first feeding point A1 and a first connection point B1 are provided on the first radiator 110, and a second feeding point A2, a second connection point B2 and a first grounding point G1 are provided on the second radiator 120. The first grounding point G1 is grounded, and the first feeding point A1 is provided between the first grounding point G1 and the second connection point B2. The first connection point B1 and the second connection point B2 are provided close to the first gap 101.

[0045] The first feed source S1 feeds a first feed signal to the first radiator 110 through the first feed point A1 so that the first radiator 110 supports the first frequency band. The second feed source S2 feeds a second feed signal to the second radiator 120 through the second feed point A2 so that the second radiator 120 supports the second frequency band. In the embodiment of the present application, the first feed source S1 and the second feed source S2 can be devices for generating a feed signal (or an excitation signal). The first feed source S1 is used to generate a first feed signal, and the second feed source S2 is used to generate a second feed signal. Among them, the first feed signal and the second feed signal are different. It should be noted that the first radiator 110 supporting the first frequency band can be understood as the first radiator 110 can be used to receive a radio frequency signal of the first frequency band, or the first radiator 110 can be used to transmit a radio frequency signal of the first frequency band, or the first radiator 110 can be used to receive and transmit radio frequency signals of the first frequency band. The second radiator 120 supporting the second frequency band can be understood as the second radiator 120 can be used to receive radio frequency signals in the second frequency band, or the second radiator 120 can be used to transmit radio frequency signals in the second frequency band, or the second radiator 120 can be used to receive and transmit radio frequency signals in the second frequency band.

[0046] Wherein, the first frequency band is different from the second frequency band. Exemplarily, the frequency range covered by the first frequency band is different from the frequency range covered by the second frequency band. In an embodiment of the present application, the first frequency band is a low frequency band (LB) frequency band, and the range of the LB frequency band is 703MHz-960MHz. The second frequency band is a middle frequency band and high frequency band (MHB) frequency band, and the range of the MHB frequency band is 1710MHz-2690MHz.

[0047] The first tuning circuit 210 is connected to the first connection point B1, the second connection point B2 and the common ground terminal respectively, and is used to select and conduct the paths between the first radiator 110 and the common ground terminal, and the second radiator 120 and the common ground terminal, so as to switch and adjust the resonant modes excited by the first radiator 110 and the second radiator 120. The first radiator 110 and the second radiator 120 support different resonant modes when the conduction states of the first tuning circuit 210 are different.

[0048] The antenna device comprises a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2 and a first tuning circuit 210, wherein a first gap 101 is provided between the first radiator 110 and the second radiator 120, a first feeding point A1 and a first connecting point B1 are provided on the first radiator 110, a second feeding point A2, a second connecting point B2 and a first grounding point G1 are provided on the second radiator 120, the first grounding point G1 is grounded, the first connecting point B1 and the second connecting point B2 are provided near the first gap 101, and the first feed source S1 is connected to the first grounding point G1 through the first feeding point A1. 1 feeds a first feed signal to the first radiator 110 so that the first radiator 110 supports the first frequency band, and the second feed source S2 feeds a second feed signal to the second radiator 120 through the second feeding point so that the second radiator 120 supports the second frequency band. The first tuning circuit 210 is respectively connected to the first connection point B1, the second connection point B2, and the common ground terminal. The first tuning circuit 210 is used to select and conduct the path between the first radiator 110 and the common ground terminal, and the second radiator 120 and the common ground terminal, so as to switch and adjust the resonant mode of the excitation of the first radiator 110 and the second radiator 120. The antenna device provided in the embodiment of the present application can enable the first radiator to support the first frequency band and the second radiator to support the second frequency band by reusing the first tuning circuit 210, so that the support of multiple frequency bands can be achieved with fewer tuning circuits, which saves the occupied space of the antenna device, is conducive to the miniaturized design of the antenna device, and can further reduce the cost of the antenna device.

[0049] like Figure 2As shown, in one embodiment, the antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210 and a first parasitic stub 310. A second grounding point G2 is provided on the first parasitic stub 310, and a second gap 102 is provided between the first parasitic stub 310 and the first radiator 110. The second gap 102 can be used as a coupling gap between the first radiator 110 and the first parasitic stub 310, and is used to achieve capacitive coupling between the first radiator 110 and the first parasitic stub 310. It should be noted that the width of the second gap 102 between the first radiator 110 and the first parasitic stub 310 can be determined according to actual conditions, and it needs to meet the minimum size that the first radiator 110 and the first parasitic stub 310 can be coupled.

[0050] The first feed source S1 feeds a first feed signal to the first radiator 110 through the first feeding point A1, so that the first radiator 110 supports the first frequency band, and the first radiator 110 and the first parasitic branch 310 jointly support the third frequency band. The first frequency band and the third frequency band are different. Exemplarily, the frequency range covered by the first frequency band is different from the frequency range covered by the third frequency band. In an embodiment of the present application, the third frequency band may be a high frequency band (HB), and the range of the HB band is 2300MHz-2690MHz. Exemplarily, the RF signal of the HB band may include RF signals of some or all high frequency bands such as n7 / n38 / n41.

[0051] The above-mentioned antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210 and a first parasitic branch 310. By multiplexing the first tuning circuit 210 and the first radiator 110, not only the first radiator 110 can support the first frequency band and the third frequency band, but also the second radiator 120 can support the second frequency band. On the basis of not adding a tuning circuit, the frequency band range supported by the antenna device is further expanded to achieve full-band coverage, thereby further saving the space occupied by the antenna device, being conducive to the miniaturized design of the antenna device, and further reducing the cost of the antenna device.

[0052] In one embodiment, part of the first radiator 110 can be stimulated by the first feed signal to generate a first resonant mode to radiate a radio frequency signal of the first frequency band. The first resonant mode is used to support the transmission and reception of the radio frequency signal of the first frequency band. Specifically, Figure 3 As shown, the first resonant mode is a quarter-wavelength mode of the first sub-radiator 111 corresponding to the second end of the first radiator 110 from the first feeding point A1 to radiate a radio frequency signal in the first frequency band, such as a radio frequency signal in a higher frequency band in the LB band, such as a radio frequency signal in the B8 band.

[0053] The first radiator 110 can excite the second resonant mode under the excitation of the first feeding signal to radiate the radio frequency signal of the first frequency band. The second resonant mode is used to support the transmission and reception of the radio frequency signal of the first frequency band. Specifically, Figure 4 As shown, the second resonant mode is a quarter-wavelength mode of the first sub-radiator 111 corresponding to the second end of the first radiator 110 from the first feeding point A1 and a quarter-wavelength mode of the second sub-radiator 112 corresponding to the first end of the first radiator 110, so as to support the RF signal of the first frequency band, such as the RF signal of the lower frequency band in the LB frequency band, such as the RF signal of the n28 frequency band. In other words, the second resonant mode is a quarter-wavelength convection mode of the first sub-radiator 111 and the second sub-radiator 112.

[0054] Part of the first radiator 110 can be excited by the first feeding signal to generate a third resonance mode to radiate a radio frequency signal in a third frequency band. The third resonance mode is used to support the transmission and reception of radio frequency signals in the third frequency band. Specifically, Figure 5 As shown, the third resonance mode is a three-quarter wavelength mode of the first sub-radiator 111 corresponding to the second end of the first radiator 110 from the first feeding point A1 to radiate a radio frequency signal in a third frequency band.

[0055] The first parasitic branch 310 can excite the fourth resonant mode under the excitation of the first feeding signal to radiate the radio frequency signal of the third frequency band. The fourth resonant mode is used to support the transmission and reception of the radio frequency signal of the third frequency band. Figure 5 The fourth resonance mode is a quarter-wavelength mode from the first end of the first parasitic branch 310 to the first sub-parasitic branch 311 corresponding to the second ground point G2, so as to radiate the radio frequency signal of the third frequency band.

[0056] In the embodiment of the present application, for the sake of convenience of explanation, the first radiator 110 and the first parasitic branch 310 are referred to as the first antenna (ANT-1). Under the excitation of the first feeding signal, the first sub-radiator 111 can excite a λ / 4 mode to support the higher frequency band in the LB band (such as the B8 band), the first sub-radiator 111 and the second sub-radiator 112 can excite two λ / 4 convection modes to support the lower frequency band in the LB low frequency (such as the n28 band), the first sub-radiator 111 can excite a λ / 4 parasitic mode and the first parasitic branch 311 can excite a 3λ / 4 parasitic mode to support the HB band, so as to jointly support the HB band.

[0057] like Figure 6As shown, in one embodiment, the second radiator 120 may include a second sub-parasitic branch 121 and a second sub-radiating branch 122. A second connection point B2 is provided on the second sub-parasitic branch 121, and a first gap 101 is provided between the second sub-parasitic branch 121 and the first radiator 110. The first gap 101 may be used as a coupling gap between the first radiator 110 and the second sub-parasitic branch 121, and is used to achieve capacitive coupling between the first radiator 110 and the second sub-parasitic branch 121. It should be noted that the width of the first gap 101 between the first radiator 110 and the second sub-parasitic branch 121 may be determined according to actual conditions, and it needs to meet the minimum size that the first radiator 110 and the second sub-parasitic branch 121 can be coupled.

[0058] A second feeding point A2 and a first grounding point G1 are provided on the second sub-radiation branch 122, and a third gap 103 is provided between the second sub-parasitic branch 121 and the second sub-radiation branch 122. The third gap 103 can be used as a coupling gap between the second sub-parasitic branch 121 and the second sub-radiation branch 122, and is used to achieve capacitive coupling between the second sub-parasitic branch 121 and the second sub-radiation branch 122. It should be noted that the width of the third gap 103 between the second sub-parasitic branch 121 and the second sub-radiation branch 122 can be determined according to actual conditions, and it needs to meet the minimum size that the second sub-parasitic branch 121 and the second sub-radiation branch 122 can be coupled.

[0059] The second feed source S2 feeds a second feeding signal to the second sub-radiating branch 122 through the second feeding point A2, so that the second sub-radiating branch 122 supports the first sub-band of the second frequency band, and the second sub-parasitic branch 121 supports the second sub-band of the second frequency band. Wherein, the first sub-band is different from the second sub-band. Exemplarily, the frequency range covered by the first sub-band is different from the frequency range covered by the second sub-band. In an embodiment of the present application, the first sub-band may be an intermediate frequency (Middle frequency band, MB) band, and the range of the MB band is 1710MHz-2170MHz. Exemplarily, the RF signal of the MB band may include RF signals of some or all intermediate frequency bands such as n3 / n80 / n84.

[0060] The above-mentioned antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210 and a first parasitic branch 310, wherein the first parasitic branch 310 and the first radiator 110 can excite multiple resonant modes under the excitation of a first feed signal, so that the first radiator 110 can support the first frequency band and can also support the third frequency band together with the first parasitic branch 310, thereby expanding the frequency band range supported by the antenna device to achieve full frequency band coverage.

[0061] In one embodiment, part of the second sub-radiation branches 122 are stimulated by the second feeding signal to generate a fifth resonance mode to radiate the radio frequency signal of the first sub-frequency band. The fifth resonance mode is used to support the transmission and reception of the radio frequency signal of the first sub-frequency band. Specifically, Figure 7 As shown, the fifth resonance mode is a quarter-wavelength mode of the third sub-radiator 123 from the second end of the second sub-radiation branch 122 to the first ground point G1, so as to radiate the radio frequency signal of the first sub-frequency band.

[0062] The second sub-parasitic branch 121 is excited by the second feeding signal to generate a sixth resonant mode to radiate the radio frequency signal of the second sub-frequency band. The sixth resonant mode is used to support the transmission and reception of the radio frequency signal of the second sub-frequency band. Figure 7 The sixth resonance mode is a half-wavelength mode of the second sub-parasitic branch node 121 corresponding to the first end of the second sub-parasitic branch node 121 to the second end of the second sub-parasitic branch node 121, so as to radiate the radio frequency signal of the second sub-frequency band.

[0063] In the embodiment of the present application, for ease of explanation, the second sub-parasitic branch 121 and the third sub-radiator 123 are referred to as the second antenna (ANT-2). Under the excitation of the second feeding signal, the third sub-radiator 123 can excite a λ / 4 mode to support the MB frequency band, and the second sub-parasitic branch 121 can excite a λ / 2 mode to support the HB low frequency.

[0064] like Figure 8 As shown, in one embodiment, a third connection point B3 is provided on the second sub-radiation branch 122, and the third connection point B3 is located between the second feeding point A2 and the second end of the second sub-radiation branch 122. The antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210 and a second tuning circuit 220. Among them, the second tuning circuit 220 is respectively connected to the third connection point B3 and the common ground terminal, and the second tuning circuit 220 is used to switch and adjust the resonant mode of the second sub-radiation branch 122 and the second sub-parasitic branch 121. The conduction state of the second tuning circuit 220 is different, and the resonant mode supported by the second radiator 120 is different. In this way, the performance of the antenna device in supporting the MHB frequency band can be improved.

[0065] like Fig. 9As shown, in one embodiment, the antenna device includes a first radiator 110, a second radiator 120, a first feed S1, a second feed S2, a first tuning circuit 210, a third radiator 130, a third feed S3 and a third tuning circuit 230. A fourth gap 104 is provided between the third radiator 130 and the second radiator 120. The fourth gap 104 can be used as a coupling gap between the third radiator 130 and the second radiator 120, and is used to achieve capacitive coupling between the third radiator 130 and the second radiator 120. It should be noted that the width of the fourth gap 104 between the third radiator 130 and the second radiator 120 can be determined according to actual conditions, and it needs to meet the minimum size that the third radiator 130 and the second radiator 120 can be coupled. The third radiator 130 is provided with a third feeding point A3, a third grounding point G3 and a fourth connection point B4, wherein the third grounding point G3 is grounded, the fourth connection point B4 is provided between the third feeding point A3 and the third grounding point G3, the third feeding point A3 is close to the second end of the third radiator 130, and the third grounding point G3 is close to the first end of the third radiator 130.

[0066] The third feed source S3 feeds the third feed signal to the third radiator 130 through the third feed point A3 so that the third radiator 130 supports the first frequency band. In an embodiment of the present application, the third feed source S3 may be a device for generating a feed signal (or an excitation signal). The third feed source S3 is used to generate a third feed signal. Among them, the third feed signal is different from the first feed signal and the second feed signal. It should be noted that the third radiator 130 supporting the first frequency band can be understood as the third radiator 130 can be used to receive a radio frequency signal of the first frequency band, or the third radiator 130 can be used to transmit a radio frequency signal of the first frequency band, or the third radiator 130 can be used to receive and transmit a radio frequency signal of the first frequency band. In an embodiment of the present application, the first frequency band may be an LB frequency band, and the range of the LB frequency band is 703MHz-960MHz.

[0067] The third tuning circuit 230 is connected to the fourth connection point B4 and the common ground terminal respectively. The third tuning circuit 230 is used to adjust the resonance mode excited by the third radiator 130 .

[0068] The above-mentioned antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210, a third radiator 130, a third feed source S3 and a third tuning circuit 230. The third radiator 130 can support the first frequency band, further expanding the coverage range of the antenna device supporting the first frequency band, and without increasing the occupied space, the performance of the third radiator 130 supporting the first frequency band is improved through the third tuning circuit 230, thereby improving the performance of the antenna device supporting the first frequency band.

[0069] In one embodiment, part of the third radiator 130 is excited by the third feed signal to generate a seventh resonance mode to radiate a radio frequency signal of the first frequency band. The seventh resonance mode is used to support the transmission and reception of the radio frequency signal of the first frequency band. Specifically, Fig.10 As shown, the seventh resonance mode is a quarter-wavelength mode of the fourth sub-radiator 131 corresponding to the second end of the third radiator 130 from the third ground point G3 to radiate the radio frequency signal of the first frequency band. Based on this, the antenna device can further support the first frequency band, improve the transceiver performance of the antenna device, and expand the frequency band coverage of the antenna device.

[0070] In the embodiment of the present application, for the convenience of explanation, the fourth sub-radiator 131 is referred to as the third antenna (ANT-3). Under the excitation of the third feeding signal, the fourth sub-radiator 131 can excite a λ / 4 mode to support the LB band, which is the inverted-F antenna (IFA) antenna λ / 4 mode. The third antenna can be used to support discontinuous reception (DRX) in the LB band.

[0071] like Fig.11 As shown, in one embodiment, the antenna device includes a first radiator 110, a second radiator 120, a first feed S1, a second feed S2, a first tuning circuit 210, a third radiator 130, a third feed S3, a third tuning circuit 230, a fourth radiator 140 and a fourth feed S4. A fifth gap 105 is provided between the fourth radiator 140 and the third radiator 130. The fifth gap 105 can be used as a coupling gap between the third radiator 130 and the fourth radiator 140, and is used to achieve capacitive coupling between the third radiator 130 and the fourth radiator 140. It should be noted that the width of the fourth gap 104 between the third radiator 130 and the fourth radiator 140 can be determined according to actual conditions, and it needs to meet the minimum size that the third radiator 130 and the fourth radiator 140 can be coupled.

[0072] A fourth grounding point G4 is provided on the fourth radiator 140, a fourth feeding point A4 is provided on the third radiator 130, and the fourth feed source S4 feeds a fourth feed signal to the third radiator 130 through the fourth feed point A4 so that the third radiator 130 supports the second frequency band, and the fourth radiator 140 supports the fourth frequency band. In an embodiment of the present application, the fourth feed source S4 may be a device for generating a feed signal (or an excitation signal). The fourth feed source S4 is used to generate a fourth feed signal. Among them, the fourth feed signal is different. It should be noted that the third radiator 130 supporting the second frequency band can be understood as the third radiator 130 can be used to receive a radio frequency signal of the second frequency band, or the third radiator 130 can be used to transmit a radio frequency signal of the second frequency band, or the third radiator 130 can be used to receive and transmit a radio frequency signal of the second frequency band. The fourth radiator 140 supports the fourth frequency band, which can be understood as the fourth radiator 140 can be used to receive radio frequency signals in the fourth frequency band, or the fourth radiator 140 can be used to transmit radio frequency signals in the fourth frequency band, or the fourth radiator 140 can be used to receive and transmit radio frequency signals in the fourth frequency band. Among them, the second frequency band is different from the fourth frequency band. Exemplarily, the frequency range covered by the second frequency band is different from the frequency range covered by the fourth frequency band. In an embodiment of the present application, the second frequency band may be the MHB band, and the range of the MHB band is 1710MHz-2690MHz. The fourth frequency band is an ultra-high frequency (Ultra High Band, UHB) band, and the frequency band range of the UHB band is 3000MHz-6000MHz. Exemplarily, it can include 5G NR signals, and exemplary, it can include radio frequency signals in bands such as N77, N78, and N79.

[0073] The above-mentioned antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210, a third radiator 130, a third feed source S3, a third tuning circuit 230, a fourth radiator 140 and a fourth feed source S4, wherein the third radiator 130 and the fourth radiator 140 can excite multiple resonance modes under the excitation of a fourth feed signal, so that the third radiator 130 can support the first frequency band and the fourth frequency band, further expanding the frequency band range supported by the antenna device. For example, when the third radiator 130 adopts a mouth-to-mouth design and has a larger size, it can excite multiple resonance modes by multiplexing the radiator, and the coverage of the first frequency band and the fourth frequency band can be achieved without adding a tuning circuit, thereby saving the space occupied by the antenna device and further reducing the cost.

[0074] In one embodiment, the second frequency band includes a first sub-frequency band and a second sub-frequency band. In the embodiment of the present application, the first sub-frequency band may be an MB frequency band, and the range of the MB frequency band is 1710 MHz-2170 MHz. The second sub-frequency band may be an HB frequency band, and the range of the HB frequency band is 2300 MHz-2690 MHz.

[0075] Part of the third radiator 130 is excited by the fourth feed signal to generate an eighth resonant mode to radiate the radio frequency signal of the first sub-frequency band. The eighth resonant mode is used to support the transmission and reception of the radio frequency signal of the first sub-frequency band. Specifically, Fig.12 As shown, the eighth resonance mode is a quarter-wavelength mode of the fifth sub-radiator 132 from the first end of the third radiator 130 to the third ground point G3 to support the radio frequency signal of the first sub-frequency band.

[0076] Part of the third radiator 130 is excited by the fourth feed signal to generate a ninth resonance mode to radiate the radio frequency signal of the second sub-frequency band. The ninth resonance mode is used to support the transmission and reception of the radio frequency signal of the second sub-frequency band. Fig.12 The ninth resonance mode is a quarter-wavelength mode of the sixth sub-radiator 133 from the first end of the third radiator 130 to the fourth feeding point A4 corresponding to support the radio frequency signal of the second sub-frequency band.

[0077] Part of the fourth radiator 140 is excited by the fourth feed signal to generate a tenth resonance mode to radiate a radio frequency signal in the fourth frequency band. The tenth resonance mode is used to support the transmission and reception of the radio frequency signal in the fourth frequency band. Fig.12 The tenth resonance mode is a quarter wavelength mode of the seventh sub-radiator 141 corresponding to the second end of the fourth radiator 140 from the fourth ground point G4 to support the radio frequency signal of the fourth frequency band.

[0078] In the embodiment of the present application, for the sake of convenience of explanation, the fifth sub-radiator 132, the sixth sub-radiator 133 and the seventh sub-radiator 141 are referred to as the fourth antenna (ANT-4). Under the excitation of the fourth feeding signal, the fifth sub-radiator 132 can excite a λ / 4 mode to support the MB band, the sixth sub-radiator 133 can excite a λ / 4 mode to support the HB band, and the seventh sub-radiator 141 can excite a λ / 4 mode to support the N78 band.

[0079] In the above-mentioned antenna device, since the first antenna can support the third frequency band, the bandwidth requirement of the fourth antenna is reduced, and the fourth antenna can be configured as an antenna for receiving the third frequency band. Therefore, there is no need to add a tuning circuit to support the third frequency band, thereby saving the space occupied by the antenna device, realizing a miniaturized setting of the antenna device, and reducing costs.

[0080] like Fig.13 As shown, in one embodiment, the antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210, a fifth radiator 150, and a fifth feed source S5. A sixth gap 106 is provided between the fifth radiator 150 and the first parasitic stub 310. The sixth gap 106 can be used as a coupling gap between the fifth radiator 150 and the first parasitic stub 310, and is used to achieve capacitive coupling between the fifth radiator 150 and the first parasitic stub 310. It should be noted that the width of the sixth gap 106 between the fifth radiator 150 and the first parasitic stub 310 can be determined according to actual conditions, and it needs to meet the minimum size that the fifth radiator 150 and the first parasitic stub 310 can be coupled.

[0081] A fifth feeding point A5 and a fifth grounding point G5 are provided on the fifth radiator 150, and the fifth feed source S5 feeds the fifth feed signal to the fifth radiator 150 through the fifth feeding point A5 so that the fifth radiator 150 supports the fourth frequency band and the first sub-frequency band. In an embodiment of the present application, the fifth feed source S5 may be a device for generating a feed signal (or an excitation signal). The fifth feed source S5 is used to generate a fifth feed signal. Among them, the fifth feed signal is different from the first feed signal, the second feed signal, the third feed signal, and the fourth feed signal. It should be noted that the fifth radiator 150 supports the fourth frequency band and the first sub-frequency band, which can be understood as the fifth radiator 150 can be used to receive radio frequency signals of the fourth frequency band and the first sub-frequency band, or the fifth radiator 150 can be used to transmit radio frequency signals of the fourth frequency band and the first sub-frequency band, or the fifth radiator 150 can be used to receive and transmit radio frequency signals of the fourth frequency band and the first sub-frequency band. Among them, the fourth frequency band is different from the first sub-frequency band. Exemplarily, the frequency range covered by the fourth frequency band is different from the frequency range covered by the first sub-frequency band. In the embodiment of the present application, the fourth frequency band may be a UHB frequency band, and the first sub-frequency band may be an MB frequency band.

[0082] The above-mentioned antenna device includes a first radiator 110, a second radiator 120, a first feed source S1, a second feed source S2, a first tuning circuit 210, a fifth radiator 150 and a fifth feed source S5, wherein the fifth radiator 150 can support the fourth frequency band and the first sub-frequency band, further improving the coverage range of the antenna device for the fourth frequency band and the first sub-frequency band.

[0083] like Fig.14As shown, in one embodiment, a fifth connection point B5 is provided on the fifth radiator 150. The antenna device further includes a fourth tuning circuit 240, which is connected to the fifth connection point B5 and the common ground terminal respectively, and the fourth tuning circuit 240 is used to switch and adjust the resonant mode excited by the fifth radiator 150. The conduction state of the fourth tuning circuit 240 is different, and the resonant mode supported by the fifth radiator 150 is different. In this way, the antenna device can support the performance of the fourth frequency band and the first sub-frequency band, further expanding the frequency band range covered by the antenna device.

[0084] In one embodiment, part of the fifth radiator 150 can excite the eleventh resonance mode under the stimulation of the fourth feeding signal to radiate the radio frequency signal of the fourth frequency band. The eleventh resonance mode is used to support the transmission and reception of the radio frequency signal of the fourth frequency band. Specifically, Fig.15 As shown, the eleventh resonance mode is a quarter-wavelength mode of the eighth sub-radiator 151 corresponding to the first end of the fifth radiator 150 from the fifth feeding point A5 to radiate the radio frequency signal of the fourth frequency band.

[0085] The fifth radiator 150 can excite the twelfth resonance mode under the stimulation of the fourth feeding signal to radiate the radio frequency signal of the first sub-frequency band. The twelfth resonance mode is used to support the transmission and reception of the radio frequency signal of the first sub-frequency band. Fig.15 The twelfth resonance mode is a quarter-wavelength mode of the ninth sub-radiator 152 corresponding to the second end of the fifth radiator 150 to the first end of the fifth radiator 150 to radiate the radio frequency signal of the first sub-frequency band.

[0086] In the embodiment of the present application, for the sake of convenience of explanation, the eighth sub-radiator 151 and the ninth sub-radiator 152 are referred to as the fifth antenna (ANT-5). Under the excitation of the fifth feeding signal, the eighth sub-radiator 151 can excite a λ / 4 mode to support the N78 frequency band, and the ninth sub-radiator 152 can excite a λ / 4 mode to support the MB frequency band.

[0087] In the above-mentioned antenna device, without adding a tuning circuit, the fifth antenna can excite multiple resonant modes under the excitation of the fifth feed signal to support the fourth frequency band and the first sub-frequency band. For example, the ninth sub-radiator 152 in the fifth antenna can be designed as a MIMO antenna to support the first sub-frequency band such as the B1 and n1 frequency bands, thereby improving the frequency band coverage of the antenna device and reducing the cost.

[0088] In an embodiment of the present application, each tuning circuit (for example, the first tuning circuit 210, the second tuning circuit 220, the third tuning circuit 230 and the fourth tuning circuit 240) may include a switch unit and a tuning unit, wherein the switch unit is used to select a tuning path between the radiator and the tuning unit to adjust the resonant mode of each radiator. The switch unit may be a single pole single throw (SPST) switch or a single pole multi-throw switch (for example, SP3T, SP4T, SP6T, SP8T, etc.). The tuning unit is used to tune the resonant frequency of the radio frequency signal of the frequency band supported by each radiator. The tuning unit may include at least one of a capacitor and an inductor. In one embodiment, the switch unit is respectively connected to the connection point and the tuning unit corresponding to the tuning circuit, and the tuning unit is connected to the common ground terminal. In another embodiment, the switch unit is respectively connected to the common low end and the tuning unit, and the tuning unit is connected to the connection point corresponding to the tuning circuit. In an embodiment of the present application, there is no limitation on the connection relationship between the switch unit and the tuning unit.

[0089] For better understanding, the first tuning circuit 210 is taken as an example to illustrate various tuning circuits of the present application. Fig.16 As shown, the first tuning circuit 210 may include a first switch unit 211 and a first tuning unit 212. The first switch unit 211 is used to select and conduct the path between the first connection point B1, the second connection point B2 and the common ground terminal. The antenna device or electronic device can control the first switch unit 211 to conduct the tuning path between the first radiator 110, the second radiator 120 and the first tuning unit 212 according to actual communication needs. The first tuning unit 212 is used to tune the resonant frequency of the radio frequency signal in the first frequency band, and tune the resonant frequency of the radio frequency signal in the second frequency band. In an embodiment of the present application, the resonant frequencies of the first frequency band and the second frequency band can be adjusted by adjusting the frequency selection parameters (for example, capacitance value, inductance value) of the first tuning unit 212, so that the first radiator 110 can radiate radio frequency signals in the low frequency band, and the second radiator 120 can radiate radio frequency signals in the medium and high frequency bands.

[0090] Exemplarily, the first switch unit 221 may include a plurality of SPST switches. For example, the first switch unit 221 includes four SPST switches, wherein three SPST switches are used for the first radiator 110 and one SPST switch is used for the second radiator 120. The first tuning unit 212 may include at least one of a capacitor and an inductor. In one embodiment, a first end of the first switch unit 211 is connected to the first connection point B1, another first end of the first switch unit 211 is connected to the second connection point B2, and a second end of the first switch unit 211 is connected to a common ground terminal through the first tuning unit 212, such as Fig.16In another embodiment, the first tuning unit 212 is connected to the first connection point B1, the second connection point B2, and the two first ends of the first switch unit 211 respectively, and the second end of the first switch unit 211 is connected to the common ground.

[0091] It should be noted that the other tuning circuits (the second tuning circuit 220 , the third tuning circuit 230 , and the fourth tuning circuit 240 ) in the embodiment of the present application are similar to the first tuning circuit 210 , and will not be described in detail herein.

[0092] In one embodiment, for Fig. 9 The antenna device shown, such as Fig.17 As shown, the antenna device may further include a sixth radiator 160 and a sixth feed source S6. A seventh slot 107 is provided between the sixth radiator 160 and the second radiator 120, and an eighth slot 108 is provided between the sixth radiator 160 and the third radiator 130. The seventh slot 107 may be used as a coupling slot between the sixth radiator 160 and the second radiator 120, and is used to achieve capacitive coupling between the sixth radiator 160 and the second radiator 120. The eighth slot 108 may be used as a coupling slot between the sixth radiator 160 and the third radiator 130, and is used to achieve capacitive coupling between the sixth radiator 160 and the third radiator 130. It should be noted that the width of the seventh gap 107 between the sixth radiator 160 and the second radiator 120 can be determined according to actual conditions, and it needs to meet the minimum size that the sixth radiator 160 and the second radiator 120 can be coupled; the width of the eighth gap 108 between the sixth radiator 160 and the third radiator 130 can be determined according to actual conditions, and it needs to meet the minimum size that the sixth radiator 160 and the third radiator 130 can be coupled.

[0093] A sixth feeding point A6 and a sixth grounding point G6 are provided on the sixth radiator 160, wherein the sixth feeding point A6 is close to the first end of the sixth radiator 160, and the sixth grounding point G6 is close to the second end of the sixth radiator 160. The sixth feed source S6 feeds the sixth feeding signal to the sixth radiator 160 through the sixth feeding point A6, so that the sixth radiator 160 supports the second frequency band. In an embodiment of the present application, the sixth feed source S6 may be a device for generating a feeding signal (or an excitation signal). The sixth feed source S6 is used to generate a sixth feeding signal. Among them, the sixth feeding signal is different from the aforementioned feeding signals. It should be noted that the sixth radiator 160 supporting the second frequency band can be understood as the sixth radiator 160 can be used to receive a radio frequency signal of the second frequency band, or the sixth radiator 160 can be used to transmit a radio frequency signal of the second frequency band, or the sixth radiator 160 can be used to receive and transmit a radio frequency signal of the second frequency band. Exemplarily, the second frequency band is the MHB frequency band. Based on this, the performance of the antenna device in supporting the second frequency band can be improved, and it also helps to expand the frequency band range supported by the antenna device to achieve full frequency band coverage, thereby saving the space occupied by the antenna device, and is conducive to the miniaturized design of the antenna device to reduce the cost of the antenna device.

[0094] In one embodiment, for Fig.11 The antenna device shown, such as Fig.18 As shown, the antenna device may further include a seventh radiator 170, a seventh feed source S7, an eighth feed source S8 and a second parasitic branch 320. A ninth slot 109 is provided between the second parasitic branch 320 and the fourth radiator 140, and a tenth slot 200 is provided between the second parasitic branch 320 and the seventh radiator 170. The ninth slot 109 may be used as a coupling slot between the second parasitic branch 320 and the third radiator 120, and is used to achieve capacitive coupling between the second parasitic branch 320 and the third radiator 120. The tenth slot 200 may be used as a coupling slot between the second parasitic branch and the seventh radiator 170, and is used to achieve capacitive coupling between the second parasitic branch and the seventh radiator 170. It should be noted that the width of the tenth slot 200 between the second parasitic branch and the seventh radiator 170 may be determined according to actual conditions, and it needs to meet the minimum size that the second parasitic branch and the seventh radiator 170 can be coupled.

[0095] A seventh feeding point A7 and a seventh grounding point G7 are provided on the fourth radiator 140, wherein the seventh feeding point A7 is close to the first end of the fourth radiator 140, and the seventh grounding point G7 is provided between the seventh feeding point A7 and the fourth grounding point G4. An eighth grounding point G8 is provided on the second parasitic branch 320. An eighth feeding point A8 and a ninth grounding point G9 are provided on the seventh radiator 170. The eighth feeding point A8 is close to the second end of the seventh radiator 170, and the ninth grounding point G9 is close to the first end of the seventh radiator 170.

[0096] The seventh feed source S7 feeds a seventh feed signal to the fourth radiator 140 through the seventh feed point A7, so that the fourth radiator 140 supports the fourth frequency band and the fifth frequency band. The eighth feed source S8 feeds an eighth feed signal to the seventh radiator 170 through the eighth feed point A8, so that the seventh radiator 170 supports the sixth frequency band.

[0097] In an embodiment of the present application, the seventh feed S7 and the eighth feed S8 may be devices for generating a feed signal (or an excitation signal). The seventh feed S7 is used to generate a seventh feed signal, and the eighth feed S8 is used to generate an eighth feed signal. Among them, the seventh feed signal and the eighth feed signal are different from the aforementioned feed signals. It should be noted that the fourth radiator 140 supports the fourth frequency band and the fifth frequency band, which can be understood as the fourth radiator 140 can be used to receive radio frequency signals of the fourth frequency band and the fifth frequency band, or the fourth radiator 140 can be used to transmit radio frequency signals of the fourth frequency band and the fifth frequency band, or the fourth radiator 140 can be used to receive and transmit radio frequency signals of the fourth frequency band and the fifth frequency band. The seventh radiator 170 supports the sixth frequency band, which can be understood as the seventh radiator 170 can be used to receive radio frequency signals of the sixth frequency band, or the seventh radiator 170 can be used to transmit radio frequency signals of the sixth frequency band, or the seventh radiator 170 can be used to receive and transmit radio frequency signals of the sixth frequency band. Exemplarily, the fourth frequency band may be a UHB frequency band, the fifth frequency band may be a GPS L1 frequency band, and the sixth frequency band may include a WiFi 2.4G frequency band and a WiFi 5G frequency band.

[0098] Based on the above, the performance of the antenna device in supporting the fourth frequency band can be improved, and the frequency band range supported by the antenna device is further expanded to achieve full frequency band coverage, thereby saving the space occupied by the antenna device, which is conducive to the miniaturized design of the antenna device and reducing the cost of the antenna device.

[0099] In one embodiment, part of the fourth radiator 140 can excite a thirteenth resonance mode under the stimulation of the seventh feeding signal to radiate a radio frequency signal in the fourth frequency band. The thirteenth resonance mode is used to support the transmission and reception of radio frequency signals in the fourth frequency band. Specifically, Fig.19 As shown, the thirteenth resonance mode is a quarter-wavelength mode from the first end of the fourth radiator 140 to the tenth sub-radiator 142 corresponding to the seventh feeding point A7, so as to radiate the radio frequency signal of the fourth frequency band.

[0100] The fourth radiator 140 may be stimulated by the seventh feed signal to generate a fourteenth resonance mode to radiate a radio frequency signal in the fifth frequency band. The fourteenth resonance mode is used to support the transmission and reception of radio frequency signals in the fifth frequency band. Fig.19The fourteenth resonance mode is a quarter-wavelength mode of the eleventh sub-radiator 143 from the first end of the fourth radiator 140 to the seventh ground point G7 to radiate the radio frequency signal of the fifth frequency band.

[0101] In the embodiment of the present application, for the sake of ease of description, the tenth sub-radiator 142 and the eleventh sub-radiator 143 are referred to as the sixth antenna (ANT-6). Under the excitation of the fifth feeding signal, the tenth sub-radiator 142 can excite a λ / 4 mode to support the N78 frequency band, and the eleventh sub-radiator 143 can excite a λ / 4 mode to support the GPS L1 low frequency.

[0102] In one embodiment, part of the seventh radiator 170 can excite the fifteenth resonance mode under the stimulation of the eighth feeding signal to radiate the radio frequency signal of the sixth frequency band. The fifteenth resonance mode is used to support the transmission and reception of the radio frequency signal of the sixth frequency band. Specifically, Fig. 20 As shown, the fifteenth resonance mode is a quarter-wavelength mode from the ninth ground point G9 to the second end of the seventh radiator 170 to the corresponding twelfth sub-radiator 171 to radiate radio frequency signals in the sixth frequency band (such as WiFi 2.4G frequency band).

[0103] Part of the seventh radiator 170 and the second parasitic branch 320 can excite the sixteenth resonance mode under the stimulation of the eighth feeding signal to radiate the radio frequency signal of the sixth frequency band. The sixteenth resonance mode is used to support the transmission and reception of the radio frequency signal of the sixth frequency band. Fig. 20 The sixteenth resonant mode is a three-quarter wavelength mode from the ninth grounding point G9 to the second end of the seventh radiator 170 to the corresponding twelfth sub-radiator 171, and a quarter wavelength mode from the first end of the second parasitic branch 320 to the third sub-parasitic branch 321 corresponding to the eighth grounding point G8, so as to radiate the radio frequency signal of the sixth frequency band (such as the WiFi 5G frequency band).

[0104] In the embodiment of the present application, for the convenience of description, the seventh radiator 170 and the second parasitic branch 320 are recorded as the seventh antenna (ANT-7). Under the excitation of the eighth feeding signal, the twelfth sub-radiator 171 can excite a λ / 4 mode to support the WiFi 2.4G frequency band, the twelfth sub-radiator 171 can excite a 3λ / 4 mode, and the third sub-parasitic branch 321 can excite a λ / 4 mode to support the WiFi 5G frequency band.

[0105] like Fig.21As shown, in one embodiment, the antenna device includes a plurality of radiators (the first radiator 110 to the eighth radiator 180), two parasitic branches (the first parasitic branch 310 and the second parasitic branch 320), nine feed sources (the first feed source S1 to the ninth feed source S9), and two tuning circuits (the first tuning circuit 210 and the third tuning circuit 230). Among them, gaps (the first gap 101 to the tenth gap 200, the eleventh gap 201, and the twelfth gap 202) are provided between each radiator and each parasitic branch. It should be noted that, Fig.21 The provided antenna device may be arranged in a mirror image along the central axis, and no limitation is imposed on the arrangement of the antenna device.

[0106] Among them, the first antenna supports LB band and HB band, the second antenna supports MHB band, the third antenna supports DRX of LB band, the fourth antenna supports MHB band and N78 band, the fifth antenna supports MB band and N78 band, the sixth antenna supports N78 band and GPS L1 band, and the seventh antenna supports WiFi 2.4G band and WiFi 5G band.

[0107] The first tuning circuit 210 is respectively connected to the first connection point B1, the second connection point B2 and the common ground terminal, and is used to select the path between the first radiator 110 and the common ground terminal, and the second radiator 120 and the common ground terminal, so as to switch and adjust the resonance mode of the first radiator 110 and the second radiator 120, so as to realize the sharing of the first tuning circuit 210 by the first radiator 110 and the second radiator 120, reduce the number of tuning circuits in the antenna device, and facilitate the tuning and decoupling of the LB band and the MHB band to reduce the cost. The third tuning circuit 230 is respectively connected to the fourth connection point B4 and the common ground terminal, and is used to adjust the resonance mode of the third radiator 130, so as to reduce the occupied space of the antenna device and improve the performance of the third antenna supporting the LB band.

[0108] In the above-mentioned antenna device, the first feeding point A1 corresponding to the first feed source S1 is set at the lower left corner, which can effectively excite the two resonant modes of the LB frequency band, thereby improving the anti-handhold performance of the electronic device equipped with the antenna device, such as excellent performance in a two-handed game handheld scenario; in addition, the two radiators in the antenna device support the MHB frequency band, which is beneficial to one-handed handheld performance. At the same time, since there are two radiators supporting the MHB frequency band, the bandwidth and two-handed handheld performance of the electronic device equipped with the antenna device are improved; the first radiator 110 and the second radiator 120 reuse the first tuning circuit 110, which is beneficial to the tuning and decoupling of the LB frequency band and the MHB frequency band, thereby reducing costs.

[0109] It should be noted that the antenna device provided in this application is not only applicable to mobile phones, but also to other terminal products such as pads, PCs, large screens, etc. The implementation form of each antenna in the embodiment of this application is not limited to microstrip disk antenna (MDA), but can also be a metal frame form.

[0110] In one embodiment, Fig. 22 As shown, the present application also provides an electronic device 40, comprising the antenna device of any of the above embodiments.

[0111] The electronic device 40 may be a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., a mobile phone), a mobile station (MS), etc.

[0112] The above-mentioned electronic device 40 includes an antenna device as in any of the above embodiments, wherein the antenna device includes a first radiator, a second radiator, a first feed source, a second feed source and a first tuning circuit, a first gap is provided between the first radiator and the second radiator, a first feeding point and a first connecting point are provided on the first radiator, a second feeding point, a second connecting point and a first grounding point are provided on the second radiator, the first grounding point is grounded, the first connecting point and the second connecting point are arranged close to the first gap, the first feed source feeds a first feeding signal to the first radiator through the first feeding point so that the first radiator supports the first frequency band, the second feed source feeds a second feeding signal to the second radiator through the second feeding point so that the second radiator supports the second frequency band, the first tuning circuit is respectively connected to the first connecting point, the second connecting point and the common ground terminal, and the first tuning circuit is used to select and conduct the paths between the first radiator and the common ground terminal and the second radiator and the common ground terminal to switch and adjust the resonant modes excited by the first radiator and the second radiator. The antenna device provided in the embodiment of the present application can enable the first radiator to support the first frequency band and the second radiator to support the second frequency band by reusing the first tuning circuit, thereby supporting multiple frequency bands with fewer tuning circuits, saving the space occupied by the antenna device, being conducive to the miniaturized design of the antenna device, and further reducing the cost of the antenna device.

[0113] In one embodiment, Fig.23As shown, the electronic device includes an antenna device 410, a first RF front-end module 420, a second RF front-end module 430 and a first power supply module 440. Among them, the antenna port of the first RF front-end module 420 is connected to the first feed source S1 of the antenna device 410, and the first RF front-end module 420 is used to support the transmission and reception of RF signals in the first frequency band. The antenna port of the second RF front-end module 430 is connected to the second feed source S2 of the antenna device 410, and the second frequency front-end module 430 is used to support the transmission and reception of RF signals in the second frequency band. In an embodiment of the present application, the first frequency band may be an LB frequency band, and the second frequency band may be an MHB frequency band such as a B3 frequency band, an n41 frequency band, etc.

[0114] The first power supply module 440 is connected to the power supply port of the first RF front-end module 420 and the power supply port of the second RF front-end module 430 respectively, and the first power supply module 440 is used to provide a first power supply voltage for the first RF front-end module 420 and the second RF front-end module 430. Based on this, the antenna device 410 reuses the first tuning circuit, and the electronic device reuses the first power supply module 440 to support the first frequency band and the second frequency band, thereby saving space and reducing costs.

[0115] In one embodiment, Fig.24 As shown, the electronic device includes an antenna device 410, a first RF front-end module 420, a second RF front-end module 430, a first power supply module 440, a third RF front-end module 450, a second power supply module 460 and a switch module 470. Among them, the second power supply module 460 is connected to the power supply port of the third RF front-end module 450, and the second power supply module 460 is used to provide a second power supply voltage to the third RF front-end module 450. The third RF front-end module 450 is connected to the third feed S3 and the fourth feed S4 of the antenna device 410, and the third RF front-end module 450 is used to support the transmission and reception of RF signals in the fourth frequency band under the action of the second power supply voltage. In an embodiment of the present application, the fourth frequency band can be a UHB frequency band, such as an N77 frequency band and an N78 frequency band.

[0116] A first end of the switch module 470 is connected to the second RF front-end module 430, a second end of the switch module 470 is connected to the first power supply module 440, and another second end of the switch module 470 is connected to the second power supply module 460. The switch module 470 is used to select and conduct the power supply path between the first power supply module 440 and the second RF front-end module 430, and the second power supply module 460 and the second RF front-end module 430.

[0117] The above-mentioned electronic device includes an antenna device 410, a first RF front-end module 420, a second RF front-end module 430, a first power supply module 440, a third RF front-end module 450, a second power supply module 460 and a switch module 470, wherein the switch module 470 can select to conduct the power supply path between the second RF front-end module 430 and the first power supply module 440, and between the second RF front-end module 430 and the second power supply module 460. Therefore, by switching the switch module 470, the first power supply module 440 and the second power supply module 460 can both supply power to the second RF front-end module 430 to provide the second RF front-end module 430 with a first power supply voltage and a second power supply voltage, so that the second RF front-end module 430 can simultaneously support multiple frequency bands, such as the MB band and the HB band.

[0118] In one embodiment, the second frequency band includes a first sub-band and a second sub-band. In an embodiment of the present application, the first sub-band may be an MB band, and the second sub-band may be an HB band. Wherein, when the second power supply module 460 provides a second power supply voltage to the third RF front-end module 450, the switch module 470 conducts the power supply path between the first power supply module 440 and the second RF front-end module 430, and the first power supply module 440 provides a first power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the transmission and reception of RF signals of the second sub-band. Exemplarily, the second power supply module 460 provides a second power supply voltage to the third RF front-end module 450 so that the third RF front-end module 450 supports the UHB frequency band such as the N78 frequency band. At the same time, the switch module 470 turns on the power supply path between the first power supply module 440 and the second RF front-end module 430. The first power supply module 440 provides a first power supply voltage to the second RF front-end module 430 so that the second RF front-end module 430 supports the HB frequency band such as the n41 frequency band, so that the third RF front-end module 450 supports the UHB frequency band while the second RF front-end module 450 can support the HB frequency band, thereby enabling the electronic device to support dual SIM dual active (DSDA).

[0119] In the case where the first power supply module 440 provides the first power supply voltage to the first RF front-end module 420, the switch module 470 conducts the power supply path between the second power supply module 460 and the second RF front-end module 430, and the second power supply module 460 provides the second power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the transmission and reception of RF signals in the second sub-band. Exemplarily, the first power supply module 440 provides the first power supply voltage to the first RF front-end module 420, so that the first RF front-end module 420 supports the LB band such as the B8 band, and at the same time, the switch module 470 conducts the power supply path between the second power supply module 460 and the second RF front-end module 430, and the second power supply module 460 provides the second power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the HB band such as the n41 band, so that the third RF front-end module 450 supports the LB band while the second RF front-end module 450 can support the HB band, so that the electronic device can support the LB band and the HB band at the same time.

[0120] In the case where the first power supply module 440 provides the first power supply voltage to the second RF front-end module 430, the switch module 470 conducts the power supply path between the second power supply module 460 and the second RF front-end module 430, and the second power supply module 460 provides the second power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the transmission and reception of RF signals in the first sub-band. Exemplarily, the first power supply module 440 provides the first power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the MB band such as the B3 band. At the same time, the switch module 470 conducts the power supply path between the second power supply module 460 and the second RF front-end module 430, and the second power supply module 460 provides the second power supply voltage to the second RF front-end module 430, so that the second RF front-end module 430 supports the HB band such as the n41 band, so that the second RF front-end module 430 can simultaneously support the MB band and the HB band, so that the electronic device can support 4G access network and 5G NR dual connectivity (EUTRA NR Dual-Connectivity, ENDC).

[0121] The above-mentioned electronic device can select to conduct the power supply path between the first power supply module 440 and the second RF front-end module 430, and between the second power supply module 460 and the second RF front-end module 430 through the switch module 470, so that different RF front-end modules can work at the same time, which can meet the scenario requirements of ENDC as well as the scenario requirements of DSDA. Without adding additional power supply modules, the cost is reduced and the performance of the electronic device 40 in supporting multiple frequency bands is improved.

[0122] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0123] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively detailed and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An antenna device, characterized in that: include: A first radiator, a second radiator, a first feed source, a second feed source, and a first tuning circuit, wherein a first gap is provided between the first radiator and the second radiator, a first feeding point and a first connecting point are provided on the first radiator, a second feeding point, a second connecting point, and a first grounding point are provided on the second radiator, the first grounding point is grounded, and the first connecting point and the second connecting point are provided close to the first gap; The first feed source feeds a first feed signal to the first radiator through the first feed point so that the first radiator supports a first frequency band; The second feed source feeds a second feed signal to the second radiator through the second feed point so that the second radiator supports a second frequency band; The first tuning circuit is connected to the first connection point, the second connection point and the common ground terminal respectively, and is used to select a path between the first radiator and the common ground terminal, and a path between the second radiator and the common ground terminal, so as to switch and adjust the resonant mode of the excitation of the first radiator and the second radiator.

2. The antenna device according to claim 1, characterized in that The antenna device also includes a first parasitic branch, a second grounding point is provided on the first parasitic branch, a second gap is provided between the first parasitic branch and the first radiator, and the first feed source feeds the first feed signal to the first radiator through the first feeding point, so that the first radiator supports the first frequency band, and the first radiator and the first parasitic branch jointly support a third frequency band.

3. The antenna device according to claim 1, characterized in that: A part of the first radiator is excited by the first feeding signal to generate a first resonance mode to radiate a radio frequency signal in the first frequency band; The first radiator is excited by the first feeding signal to generate a second resonance mode to radiate a radio frequency signal in the first frequency band; Part of the first radiators are excited by the first feeding signal to generate a third resonance mode to radiate the radio frequency signal of the third frequency band; The first parasitic branch is excited by the first feeding signal to generate a fourth resonance mode to radiate the radio frequency signal in the third frequency band.

4. The antenna device according to claim 3, characterized in that: The first resonance mode is a quarter-wavelength mode of the first sub-radiator corresponding to the second end of the first radiator from the first feeding point; The second resonance mode is a quarter-wavelength mode of the first sub-radiator corresponding to the second end of the first radiator from the first feeding point and a quarter-wavelength mode of the second sub-radiator corresponding to the first end of the first radiator from the first feeding point; The third resonance mode is a three-quarter wavelength mode of the first sub-radiator corresponding to the second end of the first radiator from the first feeding point; The fourth resonance mode is a quarter-wavelength mode from the first end of the first parasitic branch to the first sub-parasitic branch corresponding to the second grounding point.

5. The antenna device according to claim 1, characterized in that: The second radiator includes a second sub-parasitic branch and a second sub-radiating branch, wherein the second connection point is provided on the second sub-parasitic branch, and the first gap is provided between the second sub-parasitic branch and the first radiator, the second feeding point and the first grounding point are provided on the second sub-radiating branch, a third gap is provided between the second sub-parasitic branch and the second sub-radiating branch, and the second feed source feeds the second feeding signal to the second sub-radiating branch through the second feeding point, so that the second sub-radiating branch supports the first sub-band of the second frequency band, and the second sub-parasitic branch supports the second sub-band of the second frequency band.

6. The antenna device according to claim 5, characterized in that Some of the second sub-radiation branches are excited by the second feeding signal to generate a fifth resonance mode to radiate the radio frequency signal of the first sub-frequency band; The second sub-parasitic branch is excited by the second feeding signal to generate a sixth resonance mode to radiate the radio frequency signal of the second sub-frequency band.

7. The antenna device according to claim 6, characterized in that: The fifth resonance mode is a quarter-wavelength mode of the third sub-radiator from the second end of the second sub-radiation branch to the first ground point; The sixth resonance mode is a half-wavelength mode of the second sub-parasitic branch corresponding to the first end of the second sub-parasitic branch to the second end of the second sub-parasitic branch.

8. The antenna device according to claim 5, characterized in that: A third connection point is provided on the second sub-radiation branch, and the third connection point is located between the second feeding point and the second end of the second sub-radiation branch; The antenna device also includes a second tuning circuit, which is connected to the third connection point and the common ground terminal respectively, and is used to switch and adjust the resonant mode of the second sub-radiating branch and the second sub-parasitic branch excitation.

9. The antenna device according to claim 1, characterized in that: The antenna device further comprises a third radiator, a third feed source and a third tuning circuit, wherein a fourth gap is provided between the third radiator and the second radiator, the third radiator is provided with a third feeding point, a third grounding point and a fourth connection point, and the third grounding point is grounded; The third feed source feeds a third feed signal to the third radiator through the third feeding point so that the third radiator supports the first frequency band; The third tuning circuit is connected to the fourth connection point and the common ground terminal respectively, and the third tuning circuit is used to adjust the resonant mode excited by the third radiator.

10. The antenna device according to claim 9, characterized in that: Part of the third radiator is excited by the third feeding signal to generate a seventh resonance mode to radiate radio frequency signals in the first frequency band.

11. The antenna device according to claim 10, characterized in that: The seventh resonance mode is a quarter-wavelength mode of the fourth sub-radiator corresponding to the second end of the third radiator from the third ground point.

12. The antenna device according to claim 9, characterized in that: The antenna device also includes a fourth radiator and a fourth feed source, wherein a fifth gap is provided between the fourth radiator and the third radiator, a fourth grounding point is provided on the fourth radiator, a fourth feeding point is provided on the third radiator, and the fourth feed source feeds a fourth feeding signal to the third radiator through the fourth feeding point so that the third radiator supports the second frequency band, and the fourth radiator supports the fourth frequency band.

13. The antenna device according to claim 12, characterized in that: The second frequency band includes a first sub-frequency band and a second sub-frequency band; A part of the third radiator is excited by the fourth feeding signal to generate an eighth resonance mode to radiate the radio frequency signal of the first sub-frequency band; A portion of the third radiator is excited by the fourth feeding signal to generate a ninth resonance mode to radiate a radio frequency signal of the second sub-frequency band; Part of the fourth radiator is excited by the fourth feeding signal to generate a tenth resonance mode to radiate the radio frequency signal in the fourth frequency band.

14. The antenna device according to claim 13, characterized in that: The eighth resonance mode is a quarter-wavelength mode of the fifth sub-radiator from the first end of the third radiator to the third ground point; The ninth resonance mode is a quarter-wavelength mode from the first end of the third radiator to the sixth sub-radiator corresponding to the fourth feeding point; The tenth resonance mode is a quarter wavelength mode of the seventh sub-radiator corresponding to the second end of the fourth radiator from the fourth ground point.

15. The antenna device according to claim 2, characterized in that: The antenna device also includes a fifth radiator and a fifth feed source, a sixth gap is provided between the fifth radiator and the first parasitic branch, a fifth feeding point and a fifth grounding point are provided on the fifth radiator, and the fifth feed source feeds a fifth feeding signal to the fifth radiator through the fifth feeding point so that the fifth radiator supports the fourth frequency band and the first sub-frequency band.

16. The antenna device according to claim 15, characterized in that: A fifth connection point is provided on the fifth radiator, and the antenna device further comprises a fourth tuning circuit, which is respectively connected to the fifth connection point and the common ground terminal, and is used for switching and adjusting the resonant mode of the excitation of the fifth radiator.

17. The antenna device according to claim 15, characterized in that: A part of the fifth radiator is excited by the fourth feeding signal to generate an eleventh resonance mode to radiate the radio frequency signal of the fourth frequency band; The fifth radiator is excited by the fourth feeding signal to generate a twelfth resonance mode to radiate the radio frequency signal of the first sub-frequency band.

18. The antenna device according to claim 17, characterized in that: The eleventh resonance mode is a quarter-wavelength mode of the eighth sub-radiator corresponding to the first end of the fifth radiator from the fifth feeding point; The twelfth resonance mode is a quarter-wavelength mode of the fifth radiator corresponding to the distance from the second end of the fifth radiator to the first end of the fifth radiator.

19. An electronic device, characterized in that: Comprising the antenna device according to any one of claims 1 to 18.

20. The electronic device according to claim 19, characterized in that: The electronic device also includes a first radio frequency front-end module, a second radio frequency front-end module and a first power supply module; The antenna port of the first RF front-end module is connected to the first feed source of the antenna device, and the first RF front-end module is used to support the transmission and reception of RF signals in a first frequency band; The antenna port of the second RF front-end module is connected to the second feed source of the antenna device, and the second frequency front-end module is used to support the transmission and reception of RF signals in the second frequency band; The first power supply module is connected to the power supply port of the first RF front-end module and the power supply port of the second RF front-end module respectively, and the first power supply module is used to provide a first power supply voltage for the first RF front-end module and the second RF front-end module.

21. The electronic device according to claim 20, characterized in that: The electronic device also includes a third radio frequency front-end module, a second power supply module and a switch module; The second power supply module is connected to the power supply port of the third RF front-end module, and the second power supply module is used to provide a second power supply voltage to the third RF front-end module; The third RF front-end module is connected to the third feed and the fourth feed of the antenna device, and the third RF front-end module is used to support the transmission and reception of RF signals in a fourth frequency band under the action of the second power supply voltage; A first end of the switch module is connected to the second RF front-end module, a second end of the switch module is connected to the first power supply module, and the other second end of the switch module is connected to the second power supply module. The switch module is used to select and conduct a power supply path between the first power supply module and the second RF front-end module, and between the second power supply module and the second RF front-end module.

22. The electronic device according to claim 21, characterized in that: The second frequency band includes a first sub-frequency band and a second sub-frequency band; wherein, In the case where the second power supply module provides the second power supply voltage to the third RF front-end module, the switch module conducts the power supply path between the first power supply module and the second RF front-end module, and the first power supply module provides the first power supply voltage to the second RF front-end module, so that the second RF front-end module supports the transmission and reception of RF signals in the second sub-frequency band; In the case where the first power supply module provides the first power supply voltage to the first RF front-end module, the switch module conducts the power supply path between the second power supply module and the second RF front-end module, and the second power supply module provides the second power supply voltage to the second RF front-end module, so that the second RF front-end module supports the transmission and reception of RF signals in the second sub-frequency band; When the first power supply module provides the first power supply voltage to the second RF front-end module, the switch module turns on the power supply path between the second power supply module and the second RF front-end module, and the second power supply module provides the second power supply voltage to the second RF front-end module, so that the second RF front-end module supports the transmission and reception of RF signals in the first sub-frequency band.

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