Antenna module and terminal equipment

Abstract

The invention relates to an antenna module and terminal equipment. The antenna module comprises: a first radiator having a first upper frame point and a second upper frame point arranged at an interval; the first antenna feed circuit and the second antenna feed circuit are electrically connected with the first upper frame point; the first tuning circuit is electrically connected with the second upper frame point and is configured to adjust the radiation length of the first radiator to be a first radiation length when the first antenna feed circuit is in a working state; when the second antenna feed circuit is in the working state, the radiation length of the first radiator is adjusted to be a second radiation length; wherein the first radiation length is smaller than the second radiation length. According to the antenna module disclosed by the invention, the first antenna feed circuit and the second antenna feed circuit are both connected with the first upper frame point of the first radiator, and the first tuning circuit is arranged to adjust the radiation length, so that the antenna integration level of the antenna module can be improved; and the antenna performance that the antenna module can radiate different wireless signals when working at a proper radiation length can be realized.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal antennas, and in particular to an antenna module and a terminal device. Background Art

[0002] With the continuous progress and development of terminal devices, the functions on terminal devices are also constantly being improved and updated. In order to achieve more comprehensive and excellent communication functions and positioning functions on smart terminal devices such as mobile phones, more and more antennas are installed in terminal devices, and the requirements for antenna performance are getting higher and higher.

[0003] For terminal devices, when large batteries and full screens are used to meet long battery life and pursue better display effects, the space for setting antennas in terminal devices is gradually compressed, and the spacing between various antennas is getting closer and closer. Therefore, it is urgent to set up a highly integrated antenna solution to reduce the layout occupancy of terminal devices. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides an antenna module and a terminal device. Through the antenna module proposed in the present disclosure, the first antenna feeding circuit and the second antenna feeding circuit are both connected to the first upper frame point of the first radiator, and a first tuning circuit is provided to adjust the radiation length, which can not only improve the antenna integration of the antenna module, but also realize the antenna performance of the antenna module radiating different wireless signals at a suitable radiation length.

[0005] An embodiment of the present disclosure provides an antenna module, the antenna module comprising:

[0006] A first radiator having a first upper frame point and a second upper frame point spaced apart from each other;

[0007] A first antenna feeding circuit and a second antenna feeding circuit, electrically connected to the first upper frame point;

[0008] a first tuning circuit, electrically connected to the second upper frame point, configured to adjust the radiation length of the first radiator to a first radiation length when the first antenna feeding circuit is in an operating state; and to adjust the radiation length of the first radiator to a second radiation length when the second antenna feeding circuit is in an operating state;

[0009] Wherein, the first radiation length is shorter than the second radiation length.

[0010] In some embodiments, the antenna module further includes:

[0011] A second radiator is spaced apart from the first radiator and has a third upper frame point;

[0012] a third antenna feeding circuit, electrically connected to the third upper frame point;

[0013] The center frequency covered by the first antenna feeding circuit and the center frequency covered by the second antenna feeding circuit are both smaller than the center frequency covered by the third antenna feeding circuit.

[0014] In some embodiments, the antenna module further includes:

[0015] The second tuning circuit is connected to the connection line between the first upper frame point and the first antenna feeding circuit, and is configured to adjust the center frequency corresponding to the clutter formed by the high-order mode generated by the first radiator so that the center frequency corresponding to the clutter falls within the frequency band covered by the third antenna feeding circuit.

[0016] In some embodiments, the second radiator further has a fourth upper frame point spaced apart from the third upper frame point, and the antenna module further includes:

[0017] a fourth antenna feeding circuit, electrically connected to the fourth upper frame point;

[0018] The center frequency covered by the fourth antenna feeding circuit is smaller than the center frequency covered by the third antenna feeding circuit.

[0019] In some embodiments, a distance between the third upper frame point and the first radiator is smaller than a distance between the fourth upper frame point and the first radiator.

[0020] In some embodiments, the second antenna feed circuit transmits near field communication signals, the first antenna feed circuit and the third antenna feed circuit transmit cellular mobile communication signals of different frequency bands respectively, and the fourth antenna feed circuit transmits navigation positioning signals.

[0021] In some embodiments, a distance between the first upper frame point and the second radiator is smaller than a distance between the second upper frame point and the second radiator.

[0022] In some embodiments, the antenna module further includes:

[0023] An isolation circuit is connected to a connection line between the first upper frame point and the second antenna feed circuit, and is configured to isolate a signal on the second antenna feed circuit when the first antenna feed circuit is in an operating state; and to isolate a signal on the first antenna feed circuit when the second antenna feed circuit is in an operating state.

[0024] In some embodiments, the isolation circuit comprises:

[0025] A first inductor component is connected in series to a connection line between the first upper frame point and the second antenna feeding circuit;

[0026] or,

[0027] A second inductor component and a second capacitor component, wherein the second inductor component is connected in series on the connection line between the first upper frame point and the second antenna feeding circuit; the second capacitor component has one end connected to the connection line between the second inductor element and the second antenna feeding circuit and the other end grounded.

[0028] In some embodiments, the inductance of the first inductor component is greater than 100 nanohenries, and the inductance of the second inductor component is less than or equal to 100 nanohenries.

[0029] In some embodiments, the second radiation length is greater than 35 mm and the first radiation length is less than 30 mm.

[0030] The present disclosure also provides a terminal device, the terminal device comprising:

[0031] The antenna module proposed in the above embodiments of the present disclosure;

[0032] The shell has a first conductive frame; a first part of the first conductive frame is reused as a first radiator of the antenna module.

[0033] In some embodiments, the housing further comprises:

[0034] a second conductive frame adjacent to the first conductive frame;

[0035] The second part of the first conductive frame and the second conductive frame are reused together as the second radiator in the antenna module.

[0036] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0037] In the antenna module proposed in the present disclosure, the first antenna feeding circuit and the second antenna feeding circuit are both framed at the first upper frame point of the first radiator, so that the effect of the first antenna and the second antenna receiving and transmitting wireless signals can be achieved on the first radiator, thereby improving the integration and fusion of multiple antennas in the antenna module, and reducing the wiring cost of the antenna module and the layout occupancy in the terminal device; at the same time, in the present disclosure, a first tuning circuit is set on the first radiator, and the first tuning circuit is used to reasonably control the first radiation length corresponding to the first antenna and the second radiation length corresponding to the second antenna of the first radiator, so that the first radiator can work at a suitable radiation length, thereby improving the antenna performance of the same first radiator when transmitting and receiving wireless signals of different frequency bands.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0040] Figure 1 is a schematic structural diagram of an antenna module according to an exemplary embodiment;

[0041] Figure 2 is a schematic structural diagram of a first tuning circuit according to an exemplary embodiment;

[0042] Figure 3a is a schematic structural diagram of an antenna module in a terminal device according to an exemplary embodiment;

[0043] Figure 3b is a simplified structural diagram of an antenna module in a terminal device according to an exemplary embodiment;

[0044] Figure 4 is a circuit structure of a first radiator according to an exemplary embodiment Figure 1 ;

[0045] Figure 5 is a structural schematic diagram of an isolation circuit according to an exemplary embodiment;

[0046] Figure 6 is a schematic diagram of the structure of a terminal device according to an exemplary embodiment;

[0047] Figure 7a is a schematic diagram of a circuit structure of a first radiator according to an exemplary embodiment Figure 2 ;

[0048] Figure 7b is a third schematic diagram of a circuit structure of a first radiator according to an exemplary embodiment;

[0049] Figure 8a is a simulation diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment Figure 1 ;

[0050] Figure 8b is a simulation diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment Figure 2 ;

[0051] Fig. 9 The present invention is a structural block diagram of a terminal device according to an exemplary embodiment. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0053] See also Figure 1 , Figure 1 is a schematic diagram of the structure of an antenna module according to an exemplary embodiment; Figure 1 As shown, the antenna module provided by the embodiment of the present disclosure includes:

[0054] The first radiator 1 has a first upper frame point 11 and a second upper frame point 12 arranged at intervals;

[0055] The first antenna feeding circuit 13 and the second antenna feeding circuit 14 are electrically connected to the first upper frame point 11;

[0056] The first tuning circuit 15 is electrically connected to the second upper frame point 12 and is configured to adjust the radiation length of the first radiator 1 to the first radiation length when the first antenna feeding circuit 13 is in the working state; and adjust the radiation length of the first radiator 1 to the second radiation length when the second antenna feeding circuit 14 is in the working state;

[0057] The first radiation length is smaller than the second radiation length.

[0058] Here, the antenna module proposed in the present disclosure is arranged in a terminal device, for example, in a smart terminal device such as a mobile phone or a tablet computer; the antenna module receives and transmits wireless signal frequencies in the terminal device; specifically, when the above-mentioned antenna module is used to transmit wireless signals, the terminal device can perform wireless signal transmission, such as wireless communication, positioning, etc.

[0059] In the present disclosure, the first radiator can be set on the frame, back shell or middle frame of the terminal device, or can be set between the back shell and the middle frame, or between the middle frame and the display screen, etc., for sending and receiving wireless signals; here, the first radiator can be formed as a frame antenna, or can be formed as a patch wire, cavity antenna, etc., and the present disclosure does not impose any restrictions on this.

[0060] Here, the first radiator has a first upper frame point and a second upper frame point arranged at intervals, the first upper frame point is electrically connected to the first antenna feeding circuit and the second antenna feeding circuit proposed in the present disclosure; the second upper frame point is electrically connected to the first tuning circuit proposed in the present disclosure. The distance between the first upper frame point and the second upper frame point on the first radiator can be within a preset distance range, so that the first tuning circuit can effectively control the radiation length of the first radiator under different circumstances. In the present disclosure, the preset distance range can be between 5 millimeters (mm) and 10 mm.

[0061] In the embodiment of the present disclosure, the antenna module is also provided with a first spring clip and a second spring clip; one end of the first spring clip is connected to the first upper frame point, and the other end is respectively connected to the first antenna feeding circuit and the second antenna feeding circuit; one end of the second spring clip is connected to the second upper frame point, and the other end is connected to the first tuning circuit; here, the first spring clip and the second spring clip are both conductive spring clips such as metal spring clips, so that the first antenna feeding circuit, the second antenna feeding circuit and the first tuning circuit proposed in the present disclosure can be effectively connected to the first radiator.

[0062] Here, the first antenna feeding circuit is a feeding circuit for the first radiator to transmit and receive the first type of wireless signal, so that the first radiator can realize the signal reception and transmission of the first antenna in the terminal device; exemplarily, when the first antenna feeding circuit is in a working state and feeds an electrical signal to the first radiator, the first radiator can transmit and receive wireless signals in the medium and high frequency bands; the second antenna feeding circuit is a feeding circuit for the first radiator to radiate the second type of wireless signal, so that the first radiator can realize the signal reception and transmission of the second antenna in the terminal device; exemplarily, when the second antenna feeding circuit is in a working state and feeds an electrical signal to the first radiator, the first radiator can transmit and receive wireless signals in the low frequency band.

[0063] It should be noted that the frequencies of wireless signals received and sent by the first antenna and the second antenna in the terminal device are different. Preferably, the center frequency of the wireless signals received and sent by the first antenna is higher than the center frequency of the wireless signals received and sent by the second antenna.

[0064] The first antenna feeding circuit and the second antenna feeding circuit of the present disclosure may be arranged on the same circuit board or on different circuit boards. The circuit board proposed in the present disclosure may be a printed circuit board (PCB) or a flexible printed circuit board (FPC).

[0065] In the embodiment of the present disclosure, the first tuning circuit is arranged on the second upper frame point of the first radiator, and is respectively connected to the above-mentioned second spring piece and the ground wire of the antenna module, and is used to adjust the radiation length of the first radiator when the first antenna feeding circuit is in a working state, so that the first radiator reaches the first radiation length for the first antenna to effectively receive and send wireless signals; and adjust the radiation length of the first radiator when the second antenna feeding circuit is in a working state, so that the first radiator reaches the second radiation length for the second antenna to effectively receive and send wireless signals.

[0066] Here, a tuning component is provided in the first tuning circuit, through which the electrical signal fed into the first antenna feeding circuit can be passed, and the current of the electrical signal can be adjusted by the impedance of the tuning component to achieve adjustment of the first radiation length; the tuning component can also block the electrical signal fed into the second antenna feeding circuit, so as to control the second radiation length not to be affected by the impedance of the tuning component in the tuning circuit and cause length change, so that both the first radiation length and the second radiation length meet the requirements of the antenna module for wireless signal reception and transmission.

[0067] Exemplarily, the tuning component in the first tuning circuit can be set to any one or more of a resistor element, an inductor element or a switch element, where the resistor element, the inductor element or the switch element and the capacitor element can form a series-parallel combination in a preset form to achieve the above-mentioned isolation and / or passing effect on the electrical signal.

[0068] Preferably, the tuning component includes a first capacitor component. Here, the first capacitor component includes a first capacitor element; see Figure 2 , Figure 2 is a schematic diagram of the structure of a first tuning circuit according to an exemplary embodiment; Figure 2 As shown, the first tuning circuit 15 is provided with a first capacitor 151, and the first capacitor 151 is arranged near the grounding point connected to the ground wire. In this way, the first tuning circuit in the present disclosure utilizes the first capacitor to be grounded, and can fully exert the above-mentioned blocking effect on the low-frequency signal radiated by the second antenna.

[0069] Exemplarily, the capacitance value of the first capacitance element set in the first tuning circuit of the present disclosure exceeds the first capacitance threshold, where the first capacitance threshold may be 33 picofarads (PF). In the present disclosure, the first capacitance component may also include a combination of the first capacitance element and other components, and the overall capacitance value of the first capacitance component after the combination still exceeds the first capacitance threshold.

[0070] In the disclosed embodiment, the first radiation length is smaller than the second radiation length; correspondingly, the center frequency of the wireless signal covered by the first antenna feeding circuit is larger than the center frequency of the wireless signal covered by the second antenna feeding circuit.

[0071] In some embodiments, the second radiation length is greater than 35 mm and the first radiation length is less than 30 mm.

[0072] Here, the first antenna may be an antenna for transmitting and receiving frequency bands such as 703-960 MHz and 1710-2700 MHz in a cellular antenna, such as a 2G antenna, a 3G antenna, a 4G antenna or a 5G antenna in a cellular antenna, and the above frequency bands covered by the second antenna include N5, N8, N28, B1, B3, B38, B39, B40 or B41 frequency bands in mobile communications. The second antenna may be an antenna for transmitting and receiving a frequency of 13.56 MHz, such as a Near Field Communication (NFC) antenna.

[0073] It should be noted that the physical length of the first radiator in the present disclosure is greater than the second radiation length and the first radiation length.

[0074] In the embodiment of the present disclosure, through the passing effect of the above-mentioned first tuning circuit, the first radiator can be adjusted to send and receive wireless signals with a radiation length of less than 30 millimeters (mm) when the first antenna feeding circuit is in a working state, thereby achieving the effective antenna performance of the 2G antenna, 3G antenna, 4G antenna or 5G antenna in the cellular antenna; through the blocking effect of the above-mentioned first tuning circuit, the second radiator can be adjusted to send and receive wireless signals with a radiation length greater than 35 mm when the second antenna feeding circuit is in a working state, thereby achieving the effective antenna performance of the NFC antenna.

[0075] In the antenna module proposed in the present disclosure, the first antenna feeding circuit and the second antenna feeding circuit are both framed at the first upper frame point of the first radiator, so that the effect of the first antenna and the second antenna receiving and transmitting wireless signals can be achieved on the first radiator, thereby improving the integration and fusion of multiple antennas in the antenna module, and reducing the wiring cost of the antenna module and the layout occupancy in the terminal device; at the same time, in the present disclosure, a first tuning circuit is set on the first radiator, and the first tuning circuit is used to reasonably control the first radiation length corresponding to the first antenna and the second radiation length corresponding to the second antenna of the first radiator, so that the first radiator can work at a suitable radiation length, thereby improving the antenna performance of the same first radiator when transmitting and receiving wireless signals of different frequency bands.

[0076] In traditional terminal devices, the border in the terminal device is usually used as a border antenna to receive and send wireless signals by taking advantage of the conductive properties and position of the border; in traditional border antennas, the border can be blocked by a slit, so that the two sections of the blocked border are each realized as an antenna, thereby receiving and sending different wireless frequency bands, or the antenna frequency band can be widened by coupling two antennas; however, realizing two antennas through a slit is not very effective in improving the integration of multiple antennas. Based on this, the antenna module proposed in the present disclosure improves the antenna integration.

[0077] In some embodiments, the antenna module further includes:

[0078] The second radiator is spaced apart from the first radiator and has a third upper frame point;

[0079] a third antenna feeding circuit, electrically connected to the third upper frame point;

[0080] The center frequency covered by the first antenna feeding circuit and the center frequency covered by the second antenna feeding circuit are both smaller than the center frequency covered by the third antenna feeding circuit.

[0081] Here, see Figure 3a and Figure 3b , Figure 3a is a schematic structural diagram of an antenna module in a terminal device according to an exemplary embodiment; Figure 3b is a simplified structural diagram of an antenna module in a terminal device according to an exemplary embodiment; Figure 3a and Figure 3b As shown, the antenna module is provided with a first radiator 1 and a second radiator 2; there is a gap 3 between the first radiator and the second radiator, and the gap 3 provides clearance for the first radiator 1 and the second radiator 2 to send and receive wireless signals, so that the first radiator 1 and the second radiator 2 can send and receive wireless signals respectively. Here, Figure 3a A first upper frame point 11 and a second upper frame point 12 on the first radiator, and a third upper frame point 21 on the second radiator are shown.

[0082] In the present disclosure, the first radiator and the second radiator are both conductors. Exemplarily, the first radiator and the second radiator are both metal parts. The break 3 can be formed by a separate gap or by adding an insulator in the gap, and the present disclosure does not limit this. Exemplarily, the insulator can be a plastic.

[0083] The antenna module proposed in the present disclosure also has a third spring sheet, one end of which is connected to the first upper frame point, and the other end is connected to the third antenna feeding circuit. Here, the third spring sheet can be the same as or different from the first spring sheet and the second spring sheet.

[0084] In the present disclosure, the third antenna feeding circuit is a feeding circuit for the second radiator to transmit and receive the third wireless signal, so that the second radiator can realize the signal reception and transmission of the third antenna in the terminal device; here, a matching circuit is arranged on the connecting line between the third antenna feeding circuit and the third upper frame point.

[0085] Exemplarily, when the third antenna feeding circuit is in operation and feeds an electrical signal to the second radiator, the electrical signal fed by the third antenna feeding circuit passes through the matching circuit, and under the action of the matching circuit, the second radiator can transmit and receive high-frequency wireless signals.

[0086] It should be noted that the center frequency covered by the first antenna feeding circuit is the center frequency of the first radiator to realize the first antenna to receive and send wireless signals in the terminal device; the center frequency covered by the second antenna feeding circuit is the center frequency of the first radiator to realize the second antenna to receive and send wireless signals in the terminal device; the center frequency covered by the third antenna feeding circuit is the center frequency of the second radiator to realize the third antenna to receive and send wireless signals in the terminal device. In the present disclosure, the center frequency of the wireless signal received and sent by the third antenna is greater than the center frequency of the wireless signal received and sent by the first antenna and the second antenna. Exemplarily, the third antenna can be an antenna for transmitting and receiving N77, N78 or N79 frequency bands in a cellular antenna, such as a sub6G antenna.

[0087] Here, the range of the N77 frequency band is 3.3 GHz to 4.2 GHz; the range of the N78 frequency band is 3.3 GHz to 3.8 GHz; and the range of the N79 frequency band is 4.4 GHz to 5.0 GHz.

[0088] In the embodiment of the present disclosure, by setting a first upper frame point for co-feeding and a second upper frame point for tuning on the first radiator, and setting a third upper frame point on the second radiator, the antenna module can integrate at least three antennas at both ends of the fracture, thereby improving the integration of antennas in the terminal device and reducing the space occupied by the antenna structure in the terminal device.

[0089] In the disclosed embodiment, the antenna module may further include a fifth antenna feeding circuit, which may be electrically connected to the third upper frame point, and when the fifth antenna feeding circuit is in operation, the second radiator enables the fifth antenna to receive and send signals in the terminal device. Here, the frequency band in which the fifth antenna receives and sends wireless signals is different from the frequency band in which the fourth antenna receives and sends wireless signals.

[0090] In some embodiments, a distance between the first upper frame point and the second radiator is smaller than a distance between the second upper frame point and the second radiator.

[0091] Exemplarily, the distance between the first upper frame point and the second upper frame point may be set between 4 mm and 10 mm.

[0092] It should be noted that since the electric field strength is greater near the break, the first upper frame point in the first radiator is used as the feeding upper frame point to connect the first antenna feeding circuit and the second antenna feeding circuit; and in order to effectively adjust the first radiation length and the second radiation length, this is achieved by setting the second upper frame point away from the break.

[0093] In this way, by reasonably arranging the distribution of the first upper frame point and the second upper frame point of the first radiator on the radiator, it is convenient to effectively adjust the first radiation length and the second radiation length, and it is also possible to feed the first antenna feeding circuit and the second antenna feeding circuit from a position close to the break, thereby improving the performance of the first radiator in sending and receiving wireless signals.

[0094] In some embodiments, see Figure 4 , Figure 4 is a circuit structure of a first radiator according to an exemplary embodiment Figure 1 ;like Figure 4 As shown, the antenna module proposed in the present disclosure also includes:

[0095] The second tuning circuit 16 is connected to the connection line between the first upper frame point 11 and the first antenna feeding circuit 13, and is configured to adjust the center frequency corresponding to the clutter formed by the high-order mode generated by the first radiator 1 so that the center frequency corresponding to the clutter falls within the frequency band covered by the third antenna feeding circuit.

[0096] It should be noted that the frequency band covered by the third antenna feeding circuit is the radiation frequency band in which the second radiator realizes the third antenna to send and receive wireless signals in the terminal device. In the present disclosure, the third antenna can be a sub6G antenna in a cellular antenna, and correspondingly, the frequency band covered by the third antenna feeding circuit can be the N77, N78 or N79 frequency band.

[0097] Here, the tuning component provided in the second tuning circuit includes at least one first tuning switch, and the first tuning switch may be a multi-pole multi-throw mechanical switch or a signal-controlled switch; exemplarily, each sub-switch in the multi-pole multi-throw mechanical switch may be closed or opened separately, so that the second tuning circuit may follow the closing or opening of different sub-switches, and adjust the first radiator to realize the radiation frequency band of the first antenna for transmitting and receiving wireless signals.

[0098] Exemplarily, when the first tuning switch is adjusted to the first switch state, the first radiator receives and transmits the B41 frequency band (2575MHz-2635MHz) in mobile communications, and generates higher-order modes in the process of transmitting and receiving wireless signals; the higher-order modes form interference, and the center frequency of the interference falls within the radiation frequency band of the third antenna for transmitting and receiving wireless signals. For example, the center frequency of the interference is 4GHz, which falls within the N77 frequency band corresponding to the third antenna for transmitting and receiving wireless signals.

[0099] In this way, the present invention sets a second tuning circuit connected between the first upper frame point and the first antenna feeding circuit. When the radiators at both ends of the break radiate wireless signals of different frequency bands, the high-order modes generated by the first radiator are fully utilized to optimize the antenna performance of the second radiator radiating wireless signals.

[0100] In the embodiment of the present disclosure, the matching circuit between the third upper frame point and the third antenna feeding circuit is also provided with at least one second tuning switch; the second tuning switch may also be a multi-pole multi-throw mechanical switch or a signal control switch, and the present disclosure does not limit this. In combination with the above of the present disclosure, when the second tuning switch is adjusted to the second working state, the second radiator realizes the N77 frequency band of the third antenna receiving and transmitting wireless signals, so that the first radiator and the second radiator cooperate with each other, and improve the antenna performance of the second radiator receiving and transmitting signals in the N77 frequency band.

[0101] In other embodiments, the second tuning switch and the first tuning switch can also be adjusted together to control the first radiator to not generate interfering noise when receiving and transmitting wireless signals, or control the second radiator to filter out the above-mentioned interfering noise when radiating wireless signals, so that the second radiator can better achieve antenna performance.

[0102] Exemplarily, when the first tuning switch is adjusted to the third switching state, the first radiator does not generate interference falling into the N77 frequency band or the N78 frequency band when radiating wireless signals. At this time, the second tuning switch is adjusted to the fourth switching state, and the second radiator can be adjusted to a 1 / 4 wavelength mode to form an IFA antenna, and transmit and receive wireless signals in the N77 frequency band or the N78 frequency band; for example, at this time the resonant frequency of the second radiator can be 3.4 GHz.

[0103] In this way, the embodiment of the present disclosure can adjust the switch state when the antenna module radiates different frequency bands by setting the second tuning circuit and the second tuning switch in the matching circuit, so that the second radiator can optimize the antenna performance at different frequency points.

[0104] In some embodiments, the second radiator further has a fourth upper frame point spaced apart from the third upper frame point, and the antenna module further includes:

[0105] a fourth antenna feeding circuit, electrically connected to the fourth upper frame point;

[0106] The center frequency covered by the fourth antenna feeding circuit is smaller than the center frequency covered by the third antenna feeding circuit.

[0107] like Figure 3aAs shown, the second radiator has a third upper frame point 21 and a fourth upper frame point 22 arranged at intervals. Here, the fourth upper frame point and the third upper frame point are arranged at different positions of the second radiator, and the fourth antenna feeding circuit is connected to the fourth upper frame point. When the fourth antenna feeding circuit is in a working state, the second radiator can achieve the effect of the fourth antenna sending and receiving wireless signals in the terminal device.

[0108] Here, the center frequency covered by the fourth antenna feeding circuit is the center frequency of the second radiator realizing the fourth antenna receiving and transmitting wireless signals in the terminal device; in the present disclosure, the center frequency of the wireless signal received and transmitted by the fourth antenna is less than the center frequency of the wireless signal received and transmitted by the third antenna.

[0109] Exemplarily, the fourth antenna proposed in the present disclosure may be an antenna for transmitting and receiving navigation positioning, such as a Global Positioning System (GPS) antenna. The navigation positioning signal transmitted and received by the GPS antenna may be an L1 signal, an L2 signal or an L5 signal, and the present disclosure does not limit this.

[0110] Here, the center frequency corresponding to the L1 signal received and sent by the GPS antenna is 1575.42 MHz, the center frequency corresponding to the L2 signal received and sent by the GPS antenna is 1227.60 MHz, and the center frequency corresponding to the L5 signal received and sent by the GPS antenna is 1176.45 MHz.

[0111] In the embodiment of the present disclosure, by setting a first upper frame point for co-feeding and a second upper frame point for tuning on the first radiator, and setting a third upper frame point and a fourth upper frame point on the second radiator, the antenna module can integrate at least four antennas at both ends of the fracture, thereby improving the integration and fusion of the antenna in the terminal device.

[0112] In some embodiments, the second antenna feed circuit transmits a near field communication signal, the first antenna feed circuit and the third antenna feed circuit transmit cellular mobile communication signals of different frequency bands respectively, and the fourth antenna feed circuit transmits a navigation positioning signal.

[0113] Here, when the second antenna feeding circuit is in a working state, an electrical signal is fed to the first radiator through the first upper frame point, so that the first radiator realizes the effect of the NFC antenna sending and receiving near-field communication signals; when the first antenna feeding circuit is in a working state, an electrical signal is fed to the first radiator through the first upper frame point, so that the first radiator realizes the effect of the 2G antenna sending and receiving 2G signals, the 3G antenna sending and receiving 3G signals, the 4G antenna sending and receiving 4G signals, or the 5G antenna sending and receiving 5G signals; when the third antenna feeding circuit is in a working state, an electrical signal is fed to the second radiator through the third upper frame point, so that the second radiator realizes the effect of the sub6G antenna sending and receiving 6G signals; when the fourth antenna feeding circuit is in a working state, an electrical signal is fed to the second radiator through the fourth upper frame point, so that the second radiator realizes the effect of the GPS antenna sending and receiving navigation and positioning signals.

[0114] In this way, the antenna module proposed in the present disclosure can integrate the NFC antenna, 2G antenna (or 3G antenna, 4G antenna, 5G antenna), sub6G antenna and GPS antenna at both ends of the gap, thereby improving the integration and fusion of the antenna in the terminal device.

[0115] In the present disclosure, the antenna module is also provided with a third tuning circuit; the second radiator is also provided with a fifth upper frame point spaced apart from the third upper frame point and the fourth upper frame point; the third tuning circuit is connected to the fifth upper frame point, and is configured to adjust the radiation length of the second radiator to the third radiation length when the third antenna feed circuit is in operation, and / or, to adjust the radiation length of the second radiator to the fourth radiation length when the fourth antenna feed circuit is in operation. Here, the third radiation length is less than the fourth radiation length. Capacitor elements, resistor elements, inductor elements or switch elements may also be provided in the third tuning circuit.

[0116] The embodiment of the present disclosure can effectively control the radiation length of the second radiator when transmitting and receiving different radiation frequency bands by setting the third tuning circuit, thereby improving the isolation degree of the second radiator when transmitting and receiving signals between the third antenna and the fourth antenna.

[0117] In some embodiments, in combination Figure 3a As shown, the distance between the third upper frame point 21 and the first radiator 1 is smaller than the distance between the fourth upper frame point 22 and the first radiator 1 .

[0118] In the present disclosure, by setting the positions of the third upper frame point and the fourth upper frame point on the second radiator, the second radiator can realize the effect of the third antenna and the fourth antenna sending and receiving wireless signals in the terminal device, and by placing the third upper frame point close to the position of the break, when the center frequency corresponding to the clutter formed by the high-order mode generated by the first radiator falls within the frequency band covered by the third antenna feeding circuit, the second radiator and the first radiator can cooperate better, thereby better improving the antenna performance of the antenna module.

[0119] In some embodiments, see Figure 5 , Figure 5 is a schematic diagram of the structure of an isolation circuit according to an exemplary embodiment; Figure 5 As shown, the antenna module also includes:

[0120] The isolation circuit 17 is connected to the connection line between the first upper frame point 11 and the second antenna feed circuit 14, and is configured to isolate the signal on the second antenna feed circuit 14 when the first antenna feed circuit 13 is in an operating state; and to isolate the signal on the first antenna feed circuit 13 when the second antenna feed circuit 14 is in an operating state.

[0121] In the disclosed embodiment, the isolation circuit can be formed by combining any one or more of an inductor, a resistor, a capacitor, and a switch element in a specified connection manner. The isolation circuit is used to adjust the matching impedance between the first upper frame point and the second antenna feeder line to reduce the mutual influence between the first antenna receiving and transmitting wireless signals and the second antenna receiving and transmitting wireless signals.

[0122] For example, Figure 5 The isolating circuit 17 shown has an inductor element disposed therein.

[0123] In some embodiments, the isolation circuit includes:

[0124] A first inductor component is connected in series to a connection line between the first upper frame point and the second antenna feeding circuit;

[0125] or,

[0126] A second inductor component and a second capacitor component, wherein the second inductor component is connected in series on the connection line between the first upper frame point and the second antenna feeding circuit; a second capacitor component, one end of which is connected to the connection line between the second inductor element and the second antenna feeding circuit, and the other end of which is grounded.

[0127] In some examples, the first inductor component may include a first inductor element, and the inductance value of the first inductor element exceeds the inductance threshold, so that the electrical signal fed into the second antenna feeding circuit can pass through the connecting line between the first upper frame point and the second antenna feeding circuit, so that the first radiator can achieve the effect of the second antenna receiving and transmitting low-frequency signals in the terminal device, such as receiving and transmitting near-field communication signals; and, if the first antenna feeding circuit is also in a working state and feeds electrical signals through the first upper frame point, the electrical signal fed into the first antenna feeding circuit cannot pass through the connecting line between the first upper frame point and the second antenna feeding circuit, so that the first radiator achieves the effect of the first antenna receiving and transmitting medium and high-frequency signals, such as receiving and transmitting 4G signals.

[0128] In the present disclosure, the first inductor component may further include a combination of a second inductor element and other elements, and the overall inductance value of the first inductor component after the combination still exceeds the inductance threshold.

[0129] In other examples, the second inductor component may also include a third inductor element, which is connected in series on the connecting line between the first upper frame point and the second antenna feeding circuit; here, the inductance value of the third inductor element is less than the inductance threshold. At this time, a parallel second capacitor element is set on the connecting line between the first upper frame point and the second antenna feeding circuit, and the capacitance value of the second capacitor element exceeds the second capacitor threshold; in this way, a resonant circuit is formed by the third inductor element and the second capacitor element, and the first radiator is fully adjusted to realize the resonant frequency of the second antenna receiving and transmitting low-frequency signals in the terminal device, and the first radiator is adjusted to realize the resonant frequency of the first antenna receiving and transmitting medium and high frequency signals, and the transmission and reception of the low-frequency signals and the transmission and reception of medium and high frequency signals are isolated.

[0130] Here, the second capacitance threshold proposed in the present disclosure may be 5PF.

[0131] In the present disclosure, the second inductor component may further include a combination of a fourth inductor element and other elements, and the overall inductance value of the second inductor component after the combination still does not exceed the inductance threshold. The second capacitor component may further include a combination of a third capacitor element and other elements, and the overall capacitance value of the second capacitor element after the combination still exceeds the second capacitance threshold.

[0132] In the embodiments of the present disclosure, a first inductor component may be provided in the isolation circuit, or a combination of a second inductor component and a capacitor component may be provided, thereby enabling effective isolation of different wireless signals received and sent by the first radiator and improving the antenna performance of the antenna module; and by providing different isolation circuits, the flexibility of the antenna module structural design may be improved.

[0133] In some embodiments, the inductance of the first inductor component is greater than 100 nanohenries, and the inductance of the second inductor component is less than or equal to 100 nanohenries.

[0134] Here, the inductance threshold is 100 nanohenry (NH). By setting the inductance threshold, the first radiator can repeatedly isolate the transmission and reception of low-frequency signals and the transmission and reception of medium- and high-frequency signals.

[0135] The present disclosure also provides a terminal device, see Figure 6 , Figure 6 is a schematic diagram of the structure of a terminal device according to an exemplary embodiment; Figure 6 As shown, the terminal device includes:

[0136] The antenna module proposed in the above embodiments of the present disclosure;

[0137] The housing 4 has a first conductive frame 41 ; a first portion of the first conductive frame 41 is reused as a first radiator of the antenna module.

[0138] Here, the shell may be a metal part having a conductive area; the shell may be an outer frame of a terminal device such as a mobile phone, used to support and protect functional components inside the mobile phone.

[0139] The antenna module proposed in the present disclosure can be set on the shell, or the first conductive frame in the shell can be used as an antenna in the mobile phone to receive and send wireless signals. Exemplarily, the first part of the first conductive frame in the present disclosure can be reused as the first radiator of the antenna module, and the NFC antenna can receive and send near-field communication signals, and the 2G antenna can receive and send 2G signals (or the 3G antenna can receive and send 3G signals, the 4G antenna can receive and send 4G signals, and the 5G antenna can receive and send 5G signals).

[0140] It should be noted that the first conductive frame proposed in the present disclosure can be any frame of the shell. Specifically, it can be a frame corresponding to the long side of the terminal device, or it can be a frame corresponding to the short side of the terminal device. Exemplarily, the first conductive frame and the camera module of the terminal device are both set at the position of the short side.

[0141] The present invention utilizes the first part of the first conductive frame of the shell of the terminal device to reuse as the first radiator, and integrates the first antenna and the second antenna on the first conductive frame, thereby reducing the space occupied by the antenna module in the terminal device and improving the flexibility of the layout of other functional components of the terminal device.

[0142] In some embodiments, in combination Figure 6 , the above-mentioned housing in the terminal device also includes:

[0143] A second conductive frame 42 adjacent to the first conductive frame 41;

[0144] The second portion of the first conductive frame 42 and the second conductive frame 42 are reused together as a second radiator in the antenna module.

[0145] Here, the first conductive frame 41 has a break 3, and the break 3 divides the first conductive frame 41 into a first part and a second part. The second part of the first conductive frame 41 and the second conductive frame 42 are reused together as the second radiator in the antenna module proposed in the present disclosure, and the sub6G antenna transmits and receives 6G signals, and the GPS antenna transmits and receives navigation positioning signals on the second radiator.

[0146] In the embodiment of the present disclosure, the connection between the first conductive frame and the second conductive frame is a corner of the terminal device. The shape of the first radiator proposed in the present disclosure can be set to a straight line or an L-shape; the shape of the second radiator is adapted to the position of the corner. In the embodiment of the present disclosure, the second radiator can be set to an L-shape.

[0147] In this way, the first radiator and the second radiator are formed on both sides of the break of the first conductive frame of the present invention, and the integration of four antennas, namely the first antenna, the second antenna, the third antenna and the fourth antenna, is realized, thereby effectively improving the integration and fusion of multiple antennas in the terminal device, reducing the space occupied by the antenna module in the terminal device, and improving the flexibility of the layout of other functional components of the terminal device.

[0148] An exemplary application of the antenna module proposed in the present disclosure is described below.

[0149] Here, the terminal device is a smart product, such as a mobile phone, a computer, etc.; the first conductive frame of the shell has a fracture, one end of the fracture, i.e., the first part of the first conductive frame, serves as the first radiator, and the other end of the fracture, i.e., the second part of the first conductive frame and the second conductive frame, serves as the second radiator. Here, the first conductive frame and the second conductive frame are made of metal materials, and plastic material is provided at the fracture.

[0150] The first conductive frame and the second conductive frame both have upper frame points, and the upper frame points are the upper frame points where the main board and the middle frame of the mobile phone are connected; exemplarily, the first upper frame point and the second upper frame point are set on the first radiator, and the second upper frame point is the upper frame point of the first tuning circuit, and the first tuning circuit may include a resistor element, a resistor element, an inductor element or a switch element, etc. The first upper frame point is the upper frame point connecting the first antenna (2 / 3 / 4 / 5G antenna) feeding circuit and the second antenna (NFC antenna) feeding circuit. The third upper frame point and the fourth upper frame point are set on the second radiator, and the third upper frame point is the upper frame point connecting the third antenna (sub6G antenna) feeding circuit, and the fourth upper frame point is the upper frame point connecting the fourth antenna (GPS antenna) feeding circuit.

[0151] In the disclosed embodiment, the second upper frame point serves as the tuning point for tuning the 2 / 3 / 4 / 5G antenna. By setting the first capacitor element in the first tuning circuit, a circuit branch that is approximately short-circuited for the 2 / 3 / 4 / 5G antenna is realized, thereby controlling the first radiation length of the 2 / 3 / 4 / 5G antenna to be less than 30 mm, thereby achieving the optimal radiation efficiency of the 2 / 3 / 4 / 5G antenna; and controlling the second radiation length of the NFC antenna to be greater than 35 mm, thereby improving the card swiping experience of the NFC module.

[0152] See also Figure 7a and Figure 7b , Figure 7a is a schematic diagram of a circuit structure of a first radiator according to an exemplary embodiment Figure 2 ; Figure 7b is a third schematic diagram of a circuit structure of a first radiator according to an exemplary embodiment; Figure 7a and Figure 7b As shown, an isolation circuit 17 is provided between the second antenna feeding circuit 14 corresponding to the NFC antenna and the second upper frame point 12 .

[0153] like Figure 7a As shown, a first inductance element L1 is provided in the isolation circuit 17; here, the inductance value of the first inductance element L1 is greater than 100NH, so that when the inductance value of the first inductance element L1 is greater than 100NH, the first radiator can receive and send near-field communication signals of a frequency of 13.56MHz corresponding to the NFC antenna, and transmit and receive mobile communication signals of a frequency band of N5, N8, N28, B1, B3, B38, B39, B40 or B41 corresponding to the 2 / 3 / 4 / 5G antenna, and achieve an isolation effect between the first radiator receiving and sending the above-mentioned near-field communication signals and the above-mentioned mobile communication signals.

[0154] like Figure 7b As shown, a third inductor element L2 and a second capacitor element C2 may also be provided in the isolation circuit 17; here, the inductance value of the third inductor element L2 is less than or equal to 100NH, and the capacitance value of the second capacitor element C2 is greater than 5PF. The present disclosure can also achieve the isolation effect between the first radiator receiving and transmitting the above-mentioned near-field communication signal and the above-mentioned mobile communication signal by using the second capacitor element C2 greater than 5PF to go to the ground.

[0155] In the present disclosure, Figure 7a and Figure 7b As shown, a matching capacitor element C1 and a second tuning circuit 16 are arranged between the first antenna feeding circuit 13 corresponding to the 2 / 3 / 4 / 5G antenna and the first upper frame point 11; the matching capacitor element C1 is connected in series on the connection line between the first upper frame point 11 and the second tuning circuit 16.

[0156] Here, a first tuning switch is provided in the second tuning circuit 16, and different antenna modes are realized in different frequency bands by adjusting the switching logic of the first tuning switch, such as adjusting its switching state, so as to optimize the performance of the antenna module. For example, when the first tuning switch is adjusted to the first switching state, the first radiator receives and transmits the B41 frequency band (2575MHz-2635MHz) in mobile communications, and generates a higher-order mode in the process of transmitting and receiving wireless signals; the higher-order mode forms a clutter, and the center frequency of the clutter falls within the radiation frequency band of the sub6G antenna for transmitting and receiving wireless signals, for example, the center frequency of the clutter is 4GHz, which falls within the N77 frequency band corresponding to the third antenna for transmitting and receiving wireless signals. For another example, when the first tuning switch is adjusted to the third switching state, the first radiator does not generate interference falling into the N77 frequency band or the N78 frequency band when radiating wireless signals. At this time, the second tuning switch in the matching circuit between the third upper frame point of the second radiator and the third antenna feeding circuit can be adjusted to the fourth switching state, so that the second radiator can be adjusted to a 1 / 4 wavelength mode to form an IFA antenna, and transmit and receive wireless signals in the N77 frequency band or the N78 frequency band; for example, at this time, the resonant frequency of the second radiator can be 3.4GHz.

[0157] See also Figure 8a and Figure 8b , Figure 8a is a simulation diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment Figure 1 ; Figure 8b is a simulation diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment Figure 2 It should be noted that Figure 8a and Figure 8b The small arrows shown are used to indicate the direction of current flow, and the large arrows indicate the overall trend of current flow. Figure 8a From the direction of the large arrow shown, it can be seen that when the first tuning switch is adjusted to the third switch state and the second tuning switch can be adjusted to the fourth switch state, the second radiator is adjusted to the 1 / 4 wavelength mode to form an IFA antenna, and the second radiator transmits and receives 3.4 GHz wireless signals; Figure 8b From the direction of the large arrow shown, it can be seen that when the first tuning switch is adjusted to the first switch state, a higher-order mode is generated in the process of the first radiator receiving and sending wireless signals; the higher-order mode forms interference, and the center frequency of the interference is 4GHz, which falls into the N77 band of the radiation frequency band of the sub6G antenna for sending and receiving wireless signals.

[0158] In the embodiment of the present disclosure, a capacitor element with a capacity less than 5PF is also arranged in series in the matching circuit between the third upper frame point of the second radiator and the third antenna feeding circuit, so as to adjust the radiation length of the third radiator to the effective radiation length of the sub6G antenna when the third antenna feeding circuit is in a working state.

[0159] Fig. 9 9 is a block diagram of a terminal device according to an exemplary embodiment. For example, the terminal device 900 may be a mobile phone, a computer, a digital broadcast terminal, a message transceiver device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0160] Reference Fig. 9 The terminal device 900 may include one or more of the following components: a processing component 902 , a memory 904 , a power component 906 , a multimedia component 908 , an audio component 910 , an input / output (I / O) interface 912 , a sensor component 914 , and a communication component 916 .

[0161] The processing component 902 generally controls the overall operation of the terminal device 900, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 902 may include one or more modules to facilitate the interaction between the processing component 902 and other components. For example, the processing component 902 may include a multimedia module to facilitate the interaction between the multimedia component 908 and the processing component 902.

[0162] The memory 904 is configured to store various types of data to support operations on the terminal device 900. Examples of such data include instructions for any application or method operating on the terminal device 900, contact data, phone book data, messages, pictures, videos, etc. The memory 904 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0163] The power supply component 906 provides power to various components of the terminal device 900. The power supply component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the terminal device 900.

[0164] The multimedia component 908 includes a screen that provides an output interface between the terminal device 900 and the user. The pixel circuit proposed in the present disclosure is applied on the screen. In some embodiments, the screen may include an OLED display panel, such as an AMOLED display panel, and may also be a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front camera and / or a rear camera. When the terminal device 900 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0165] The audio component 910 is configured to output and / or input audio signals. For example, the audio component 910 includes a microphone (MIC), and when the terminal device 900 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 904 or sent via the communication component 916. In some embodiments, the audio component 910 also includes a speaker for outputting audio signals.

[0166] I / O interface 912 provides an interface between processing component 902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0167] The sensor assembly 914 includes one or more sensors for providing various aspects of status assessment for the terminal device 900. For example, the sensor assembly 914 can detect the open / closed state of the terminal device 900, the relative positioning of the components, such as the display and keypad of the terminal device 900, and the sensor assembly 914 can also detect the position change of the terminal device 900 or a component of the terminal device 900, the presence or absence of contact between the user and the terminal device 900, the orientation or acceleration / deceleration of the terminal device 900, and the temperature change of the terminal device 900. The sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 914 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0168] The communication component 916 is configured to facilitate the communication between the terminal device 900 and other devices in a wired or wireless manner. The terminal device 900 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 916 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0169] In an exemplary embodiment, the terminal device 900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0170] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 904 including instructions, and the above instructions can be executed by a processor 920 of the terminal device 900. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0171] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0172] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna module, characterized in that: include: A first radiator having a first upper frame point and a second upper frame point spaced apart from each other; A first antenna feeding circuit and a second antenna feeding circuit, electrically connected to the first upper frame point; a first tuning circuit, electrically connected to the second upper frame point, and configured to adjust the radiation length of the first radiator to a first radiation length when the first antenna feeding circuit is in an operating state; When the second antenna feeding circuit is in an operating state, adjusting the radiation length of the first radiator to a second radiation length; Wherein, the first radiation length is shorter than the second radiation length.

2. The antenna module according to claim 1, characterized in that: The antenna module also includes: A second radiator is spaced apart from the first radiator and has a third upper frame point; a third antenna feeding circuit, electrically connected to the third upper frame point; The center frequency covered by the first antenna feeding circuit and the center frequency covered by the second antenna feeding circuit are both smaller than the center frequency covered by the third antenna feeding circuit.

3. The antenna module according to claim 2, characterized in that: The antenna module also includes: The second tuning circuit is connected to the connection line between the first upper frame point and the first antenna feeding circuit, and is configured to adjust the center frequency corresponding to the clutter formed by the high-order mode generated by the first radiator so that the center frequency corresponding to the clutter falls within the frequency band covered by the third antenna feeding circuit.

4. The antenna module according to claim 2, characterized in that: The second radiator further has a fourth upper frame point spaced apart from the third upper frame point, and the antenna module further includes: a fourth antenna feeding circuit, electrically connected to the fourth upper frame point; The center frequency covered by the fourth antenna feeding circuit is smaller than the center frequency covered by the third antenna feeding circuit.

5. The antenna module according to claim 4, characterized in that: The distance between the third upper frame point and the first radiator is smaller than the distance between the fourth upper frame point and the first radiator.

6. The antenna module according to claim 4 or 5, characterized in that: The second antenna feed circuit transmits a near field communication signal, the first antenna feed circuit and the third antenna feed circuit transmit cellular mobile communication signals of different frequency bands respectively, and the fourth antenna feed circuit transmits a navigation positioning signal.

7. The antenna module according to any one of claims 2 to 5, characterized in that: The distance between the first upper frame point and the second radiator is smaller than the distance between the second upper frame point and the second radiator.

8. The antenna module according to any one of claims 1 to 5, characterized in that: The antenna module also includes: An isolation circuit is connected to a connection line between the first upper frame point and the second antenna feed circuit, and is configured to isolate a signal on the second antenna feed circuit when the first antenna feed circuit is in an operating state; and to isolate a signal on the first antenna feed circuit when the second antenna feed circuit is in an operating state.

9. The antenna module according to claim 8, characterized in that: The isolation circuit comprises: A first inductor component is connected in series to a connection line between the first upper frame point and the second antenna feeding circuit; or, A second inductor component and a second capacitor component, wherein the second inductor component is connected in series on the connection line between the first upper frame point and the second antenna feeding circuit; the second capacitor component has one end connected to the connection line between the second inductor element and the second antenna feeding circuit and the other end grounded.

10. The antenna module according to claim 9, characterized in that: The inductance value of the first inductor component is greater than 100 nanohenries, and the inductance value of the second inductor component is less than or equal to 100 nanohenries.

11. The antenna module according to any one of claims 1 to 5, characterized in that: The second radiation length is greater than 35 mm, and the first radiation length is less than 30 mm.

12. A terminal device, characterized in that: include: The antenna module according to any one of claims 1 to 11; A housing having a first conductive frame; The first part of the first conductive frame is reused as the first radiator of the antenna module.

13. The terminal device according to claim 12, characterized in that: The housing further comprises: a second conductive frame adjacent to the first conductive frame; The second part of the first conductive frame and the second conductive frame are reused together as the second radiator in the antenna module.

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