Antenna module and terminal equipment

Abstract

The invention relates to an antenna module and terminal equipment, and the antenna module comprises a first radiator which is provided with a first upper frame point and a second upper frame point, and the first upper frame point and the second upper frame point are arranged at an interval; the first antenna feed circuit is electrically connected with the first upper frame point; the second antenna feed circuit is electrically connected with the second upper frame point; the isolation circuit is electrically connected with the second 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 a working state; and when the second antenna feed circuit is in a working state, the signal on the first antenna feed circuit is isolated. According to the embodiment of the invention, the influence of the second antenna on the antenna performance of the first antenna can be reduced, and the signal receiving and transmitting performance of the antenna module is improved.

Description

Technical Field

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

[0002] With the continuous innovation of communication technology, terminal devices have ushered in the era of the fifth generation of communication technology (5th Generation Mobile Communication Technology, 5G); in order to broaden the 5G frequency band, terminal devices such as mobile phones need to integrate more antennas, resulting in space constraints.

[0003] At present, in order to reasonably arrange the antenna space in the mobile phone, the spacing between various antennas is getting closer and closer. However, this design method will lead to incompatibility between different antennas. For example, the frequency bands of the Near Field Communication (NFC) antenna and other antennas in the mobile phone are likely to affect each other and cannot be balanced. 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, which can reduce the impact of the second antenna on the antenna performance of the first antenna and improve the signal receiving and transmitting performance of the antenna module.

[0005] According to a first aspect of an embodiment of the present disclosure, an antenna module is provided, comprising at least:

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

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

[0008] a second antenna feeding circuit, electrically connected to the second upper frame point;

[0009] An isolation circuit electrically connects the second upper frame point and the second antenna feed circuit, and is configured to isolate the signal on the second antenna feed circuit when the first antenna feed circuit is in an operating state; and to isolate the signal on the first antenna feed circuit when the second antenna feed circuit is in an operating state.

[0010] In some embodiments, the antenna module further includes: a first antenna tuning circuit connected to the second upper frame point; the isolation circuit includes:

[0011] The first impedance component is connected to a first connection path between the second upper frame point and the first antenna tuning circuit, and is configured to isolate the signal on the first connection path when the second antenna feeding circuit is in an operating state.

[0012] In some embodiments, the first impedance component includes a capacitive element, and the capacitive element has a capacitance value ranging from 10 to 50 pF.

[0013] In some embodiments, the isolation circuit further comprises:

[0014] The second impedance component is connected to a second connection path between the second upper frame point and the second antenna feeding circuit, and is configured to isolate the signal on the second connection path when the first antenna feeding circuit is in an operating state.

[0015] In some embodiments, the second impedance component includes an inductor element, and the inductor element has an inductance value ranging from 20 to 100 nanohenries.

[0016] In some embodiments, the antenna module further includes:

[0017] A capacitor component has one end connected between the second impedance component and the second antenna feeding circuit and the other end grounded, and is configured to ground the first radiator.

[0018] In some embodiments, the antenna module further includes:

[0019] a switch component connected to a connection line between the isolation circuit and the first antenna tuning circuit of the antenna module;

[0020] A second radiator, connected to the switch assembly, located on a side of the first radiator close to the second upper frame point, and having a first gap between the first radiator and the first radiator;

[0021] When the switch component is in a closed state and the first radiator receives or transmits wireless signals, the resonant circuit of the second radiator adjusts the impedance of the second radiator to adjust the frequency of the wireless signals received or transmitted by the second radiator so that the adjusted frequency is away from the frequency of the wireless signals received or transmitted by the first radiator.

[0022] In some embodiments, the second radiator radiates mobile communication signals; and a center frequency of wireless signals received and sent by the second radiator is greater than a center frequency of wireless signals received and sent by the first radiator.

[0023] In some embodiments, the distance between the first upper frame point and the first break is greater than the distance between the second upper frame point and the first break.

[0024] In some embodiments, the first radiator is in a straight line shape; and the second radiator is in an L shape.

[0025] In some embodiments, the first antenna feed circuit transmits mobile communication signals and the second antenna feed circuit transmits near field communication signals.

[0026] In some embodiments, the spacing distance between the first upper frame point and the second upper frame point is 4 to 10 mm.

[0027] In some embodiments, the antenna module further includes:

[0028] a first elastic connector, one end of which is connected to the first upper frame point, and the other end of which is connected to the first antenna feeding circuit, and is configured to input a feeding current of the first antenna feeding circuit to the first upper frame point;

[0029] The second elastic connector has one end connected to the second upper frame point and the other end connected to the second antenna feeding circuit, and is configured to input the feeding current of the second antenna feeding circuit to the second upper frame point.

[0030] In some embodiments, the antenna module further includes:

[0031] The third radiator is located on a side of the first radiator away from the second upper frame point and has a second gap between the first radiator and the third radiator, and is configured to radiate navigation signals and wireless network communication signals.

[0032] According to a second aspect of the present disclosure, a terminal device is provided, comprising at least:

[0033] Conductive housing;

[0034] The antenna module as described in the first aspect;

[0035] Wherein, the first conductive edge in the conductive shell is reused as the first radiator of the antenna module.

[0036] In some embodiments, the terminal device further includes: a camera;

[0037] The first conductive edge and the camera are located on the same side of the terminal device.

[0038] In some embodiments, a first portion of the first conductive edge is multiplexed as the first radiator;

[0039] The second part of the first conductive edge and the second conductive edge arranged adjacent to the first conductive edge are reused as a second radiator of the antenna module;

[0040] The third part of the first conductive edge and the third conductive edge arranged opposite to the second conductive edge are both reused as the third radiator of the antenna module;

[0041] Wherein, the first part is located between the second part and the third part.

[0042] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0043] An antenna module and a terminal device provided in an embodiment of the present disclosure include: a first radiator having a first upper frame point and a second upper frame point spaced from the first upper frame point; a first antenna feed circuit electrically connected to the first upper frame point; a second antenna feed circuit electrically connected to the second upper frame point; an isolation circuit electrically connected to the second upper frame point and the second antenna feed circuit, configured to isolate the signal on the second antenna feed circuit when the first antenna feed circuit is in a working state; and to isolate the signal on the first antenna feed circuit when the second antenna feed circuit is in a working state. Through the antenna module proposed in the present disclosure, the isolation circuit is connected to the second upper frame point and the second antenna feed circuit, so that when the feeding point of the second antenna is shared with the second upper frame point, the first radiator can radiate the wireless signal of the first antenna and the wireless signal of the second antenna, so that when the first antenna feed circuit is in a working state, the signal on the second antenna feed circuit is isolated by the isolation circuit, and similarly, when the second antenna feed circuit is in a working state, the signal on the first antenna feed circuit is isolated by the isolation circuit, so that the influence of the second antenna on the antenna performance of the first antenna can be reduced, and the signal receiving and transmitting performance of the antenna module can be improved.

[0044] 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

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0046] Figure 1a is a schematic structural diagram of a traditional antenna module provided according to an exemplary embodiment.

[0047] Figure 1b 1 is a structural schematic diagram of an antenna module provided according to an exemplary embodiment.

[0048] Figure 2 The figure is a schematic diagram of a network environment for wireless communication provided according to an exemplary embodiment.

[0049] Figure 3 is a schematic diagram of a first elastic connector and a second elastic connector in an antenna module provided according to an exemplary embodiment.

[0050] Figure 4is a schematic diagram of the structure of an antenna module provided according to an exemplary embodiment Figure 2 .

[0051] Figure 5 is a schematic diagram of the structure of an antenna module provided according to an exemplary embodiment Figure 3 .

[0052] Figure 6a It is a schematic diagram of radiation efficiency when receiving and sending wireless signals before the second radiator in the antenna module is adjusted according to an exemplary embodiment.

[0053] Figure 6b It is a schematic diagram of the radiation efficiency of the second radiator in the antenna module when receiving and sending wireless signals after adjustment according to an exemplary embodiment.

[0054] Figure 6c It is a simulation schematic diagram of a current signal when a second radiator in an antenna module is adjusted to send and receive wireless signals according to an exemplary embodiment.

[0055] Figure 7a 1 is a simulation schematic diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment.

[0056] Figure 7b is a simulation diagram of a current signal of a wireless signal radiated by an antenna module according to an exemplary embodiment Figure 2 .

[0057] Figure 8 is a schematic diagram of the structure of a terminal device according to an exemplary embodiment;

[0058] Fig. 9 The present invention is a structural block diagram of a terminal device according to an exemplary embodiment.

[0059] Reference numerals:

[0060] 10-antenna module, 11-first radiator, 112-first upper frame point, 13-second upper frame point, 113-first antenna feeding circuit, 121-second antenna feeding circuit, 14-isolation circuit, 141-first impedance component, 111-first antenna tuning circuit, 142-second impedance component, 15-capacitor component, 16-switch component, 17-second radiator, 101-first break, 181-first elastic connector, 182-second elastic connector, 19-third radiator, 102-second break, 1-terminal device, 20-conductive shell, 21-first conductive edge, 30-camera, 22-second conductive edge, 23-third conductive edge. DETAILED DESCRIPTION

[0061] 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, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of structures and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0062] In related technologies, such as Figure 1a As shown, in order to be compatible with the NFC antenna in the mobile phone, the positioning and navigation antenna (such as L1 and L5 antennas), mobile communication antenna (such as N7879 antenna) and NFC antenna in the mobile phone can be placed in the same frame, which requires 4 upper frame springs and occupies the internal space of the mobile phone. At the same time, the L1+L5+N7879 antenna and the wireless network communication antenna (such as WiFi2.4+6e antenna) are head-to-head, and cannot be switched with a switch, that is, the frequency band is resident; among them, the transceiver frequency band of the N78 antenna is 3.3~3.8 GHz, the transceiver frequency band of the N79 antenna is 4.4~5GHz, and the transceiver frequency band of the WiFi6e antenna is 5.1~7.25GHz. This is the frequency band after sacrificing the N7879 antenna and WiFi6e antenna. The high-frequency loop mode between these antennas, that is, the low-efficiency high-order mode, will fall into the mid-to-high frequency band and produce efficiency depression, which will affect the antenna's transceiver performance and efficiency, resulting in incompatibility between different antennas. The frequency bands of the NFC antenna and other antennas in the mobile phone are likely to affect each other and cannot be balanced.

[0063] Based on this, an embodiment of the present disclosure provides an antenna module. Figure 1b 1 is a structural diagram of an antenna module according to an exemplary embodiment. Figure 1b As shown, the antenna module 10 may include:

[0064] The first radiator 11 has a first upper frame point 112 and a second upper frame point 13 spaced apart from the first upper frame point 112;

[0065] A first antenna feeding circuit 113, electrically connected to the first upper frame point 112;

[0066] A second antenna feeding circuit 121, electrically connected to the second upper frame point 13;

[0067] The isolation circuit 14 is electrically connected to the second upper frame point 13 and the second antenna feed circuit 121, and is configured to isolate the signal on the second antenna feed circuit 121 when the first antenna feed circuit 113 is in an operating state; and to isolate the signal on the first antenna feed circuit 113 when the second antenna feed circuit 121 is in an operating state.

[0068] The antenna module provided in the embodiment of the present disclosure can be placed in a terminal device. The antenna module can be used for receiving and transmitting wireless signal frequencies. When the antenna module is used to transmit wireless signals, the terminal device can perform wireless signal transmission, such as wireless communication or wireless charging.

[0069] Specifically, the terminal device where the antenna module provided by the embodiment of the present disclosure is located is active in an actual wireless communication scenario.

[0070] Exemplarily, the wireless communication scenario may be a multi-device scenario. For example, in a scenario of configuring a network for a smart device, the network configuration for the smart device is completed through the interaction of multiple machines such as a router and different terminal devices.

[0071] See also Figure 2 , the wireless communication network environment 200 includes: electronic devices 201A and 201B, wireless LAN (Wireless Fidelity, WiFi) access point 202, cellular base station 203 and network 204. Here, when the electronic devices 201A and 201B use the wireless LAN or cellular network to send and receive wireless signals, the WiFi and cellular networks can be switched through the information transmission between the WiFi access point 202 and the cellular base station 203 and the network 204; according to the present disclosure, Figure 2 In the network environment shown, when an instruction is received for the cellular circuit to perform wireless transmission, the WiFi connection is stopped; when an instruction is received to stop the cellular circuit from performing wireless transmission, the WiFi connection is restored.

[0072] The antenna module provided by the present invention can improve the radiation frequency band of the wireless signal and optimize the performance of wireless communication in the field of wireless signal transmission by changing the frequency of the wireless signal received and transmitted after coupling.

[0073] In the embodiment of the present disclosure, the first radiator can radiate both mobile communication signals and NFC signals. For example, the first radiator can be a middle high band (MHB) antenna, and the first radiator can also be an NFC antenna.

[0074] The first antenna feeding circuit may be a feeding circuit for the first radiator to radiate a first type of wireless signal, for example, the first antenna feeding circuit may be a feeding circuit for an MHB antenna. The second antenna feeding circuit may be a feeding circuit for the first radiator to radiate a second type of wireless signal; for example, the second antenna feeding circuit may be a feeding circuit for an NFC antenna.

[0075] Correspondingly, the first antenna feeding circuit can transmit mobile communication signals in the medium and high frequency bands, and the second antenna feeding circuit can transmit near field communication signals.

[0076] Here, the center frequency covered by the first antenna feeding circuit may be greater than the center frequency covered by the second antenna feeding circuit; for example, the center frequency covered by the first antenna feeding circuit may be 700 MHz, and the center frequency covered by the second antenna feeding circuit may be 13.56 MHz.

[0077] The first upper frame point may be the connection point between the first antenna feeding circuit and the first radiator, that is, the feeding point of the first antenna; the second upper frame point may be the connection point between the second antenna feeding circuit and the first radiator, that is, the feeding point of the second antenna.

[0078] The isolation circuit may be a circuit for isolating a signal transmitted on the first antenna feeding circuit from a signal transmitted on the second antenna feeding circuit.

[0079] It should be noted that the second upper frame point can be the feeding point of the second antenna or the connection point between the isolation circuit and the first radiator; that is, the feeding point of the second antenna is shared with the second upper frame point where the isolation circuit is connected to the first radiator.

[0080] In one embodiment of the present disclosure, Figure 1b As shown, the shape of the first radiator 11 is in the shape of a straight line. In this way, the shape of the first radiator can be set to better match the layout of other functional components of the terminal device, thereby reducing the space occupied by the antenna module in the terminal device.

[0081] In some embodiments, Figure 3 As shown, the antenna module 10 may further include:

[0082] A first elastic connector 181, one end of which is connected to the first upper frame point 112, and the other end of which is connected to the first antenna feeding circuit 113, and is configured to input a feeding current of the first antenna feeding circuit 113 to the first upper frame point 112;

[0083] The second elastic connector 182 has one end connected to the second upper frame point 13 and the other end connected to the second antenna feeding circuit 121 , and is configured to input the feeding current of the second antenna feeding circuit 121 to the second upper frame point 13 .

[0084] Thus, unlike the related art which requires four upper frame springs to be compatible with NFC and other antennas, the embodiment of the present disclosure only requires two elastic connectors to be compatible with the first antenna and the second antenna, thereby simplifying the structure and reducing the space occupied by the antenna module in the terminal device.

[0085] Here, the first elastic connector and the second elastic connector can both be upper frame springs of the antenna. The first elastic connector can electrically connect the feeding point of the first antenna and the first antenna feeding circuit to input the feeding current signal in the first antenna feeding circuit to the feeding point of the first antenna; the second elastic connector can electrically connect the feeding point of the second antenna and the second antenna feeding circuit to input the feeding current signal in the second antenna feeding circuit to the feeding point of the second antenna.

[0086] In the embodiment of the present disclosure, the above-mentioned isolation circuit can isolate the signal on the second antenna feeding circuit when the first antenna feeding circuit is in an operating state, and isolate the signal on the first antenna feeding circuit when the second antenna feeding circuit is in an operating state through the characteristics of the impedance component in the circuit, thereby reducing the impact of the second antenna on the antenna performance of the first antenna and achieving compatibility between the wireless signal radiated by the first radiator to the first antenna and the wireless signal of the second antenna.

[0087] The antenna module provided by the embodiment of the present disclosure includes: a first radiator having a first upper frame point and a second upper frame point spaced from the first upper frame point; a first antenna feed circuit electrically connected to the first upper frame point; a second antenna feed circuit electrically connected to the second upper frame point; an isolation circuit electrically connected to the second upper frame point and the second antenna feed circuit, configured to isolate the signal on the second antenna feed circuit when the first antenna feed circuit is in a working state; and to isolate the signal on the first antenna feed circuit when the second antenna feed circuit is in a working state. Through the antenna module proposed in the present disclosure, the isolation circuit is connected to the second upper frame point and the second antenna feed circuit, so that when the feeding point of the second antenna is shared with the second upper frame point, the first radiator can radiate the wireless signal of the first antenna and the wireless signal of the second antenna, so that when the first antenna feed circuit is in a working state, the signal on the second antenna feed circuit is isolated by the isolation circuit, and similarly, when the second antenna feed circuit is in a working state, the signal on the first antenna feed circuit is isolated by the isolation circuit, so that the influence of the second antenna on the antenna performance of the first antenna can be reduced, and the signal receiving and transmitting performance of the antenna module can be improved.

[0088] Figure 4 is a schematic diagram of the structure of an antenna module provided according to an exemplary embodiment Figure 3 ,like Figure 4 As shown, the antenna module provided by the embodiment of the present disclosure has Figure 1b The isolation circuit is further divided based on the antenna module shown. For example, the isolation circuit includes: a first impedance component and a second impedance component.

[0089] like Figure 4As shown, the antenna module 10 may further include: a first antenna tuning circuit 111 connected to the second upper frame point 13; the isolation circuit 14 may include:

[0090] The first impedance component 141 is connected to a first connection path between the second upper frame point 13 and the first antenna tuning circuit 111, and is configured to isolate the signal on the first connection path when the second antenna feeding circuit 121 is in operation.

[0091] In this way, a first impedance component can be set on the first connection path between the second upper frame point and the first antenna tuning circuit to isolate the signal on the first connection path when the second antenna feeding circuit is in an operating state, so that the second antenna feeding circuit can be directly connected to the second upper frame point, thereby achieving isolation of the signal on the first antenna feeding circuit.

[0092] The first antenna tuning circuit may be a circuit for tuning the wireless signal radiated by the first radiator to the first antenna.

[0093] In the embodiment of the present disclosure, the first impedance component includes a capacitor element, and the capacitance value of the capacitor element ranges from 10 to 50 pico-farads.

[0094] It can be understood that, when the capacitance value of the above-mentioned capacitor element is in the range of 10 to 50 picofarads (pf), relative to the center frequency covered by the above-mentioned first antenna feeding circuit, the capacitor element can be regarded as a short circuit, that is, when the above-mentioned first antenna feeding circuit is in an operating state, the signal on the above-mentioned first connection path can be conducted; and relative to the center frequency covered by the above-mentioned second antenna feeding circuit, the capacitor element can be regarded as an open circuit, that is, when the above-mentioned second antenna feeding circuit is in an operating state, the signal on the above-mentioned first connection path can be blocked.

[0095] That is to say, by setting the first impedance component to a capacitive element of 10 to 50 pf, when the second antenna feeding circuit is in an operating state, the second antenna feeding circuit can be directly connected to the second upper frame point, and the signal on the first connection path between the second upper frame point and the first antenna tuning circuit can be isolated to isolate the mutual influence between the first antenna and the second antenna.

[0096] Here, the first impedance component may include a plurality of capacitor elements, which are connected in parallel to each other, and the plurality of capacitor elements are all connected to the first connection path between the second upper frame point and the first antenna tuning circuit, which is not limited in the embodiment of the present disclosure.

[0097] It should be noted that, in the embodiment of the present disclosure, only the first impedance component can be set so as not to affect the frequency band of the wireless signal received by the first radiator from the second antenna when the first radiator receives the wireless signal of the first antenna, thereby achieving compatibility between the wireless signal radiated by the first radiator from the first antenna and the wireless signal of the second antenna.

[0098] In some embodiments, Figure 4 As shown, the isolation circuit 14 may further include:

[0099] The second impedance component 142 is connected to the second connection path between the second upper frame point 13 and the second antenna feeding circuit 121, and is configured to isolate the signal on the second connection path when the first antenna feeding circuit is in operation.

[0100] In this way, on the basis of setting the first impedance component, a second impedance component can be set on the second connection path between the second upper frame point and the second antenna feeding circuit to isolate the signal on the second connection path when the first antenna feeding circuit is in an operating state, so that the first antenna tuning circuit can be directly connected to the second upper frame point, thereby achieving isolation of the signal on the second antenna feeding circuit.

[0101] In the disclosed embodiment, the second impedance component includes an inductor element, and the inductance value of the inductor element ranges from 20 to 100 nanohenries.

[0102] It can be understood that, when the inductance value of the above-mentioned inductance element is in the range of 20 to 100 nanohenries (nH), relative to the center frequency covered by the above-mentioned first antenna feeding circuit, the inductance element can be regarded as an open circuit, that is, when the above-mentioned first antenna feeding circuit is in an operating state, the signal on the above-mentioned second connection path can be blocked; and relative to the center frequency covered by the above-mentioned second antenna feeding circuit, the inductance element can be regarded as a short circuit, that is, when the above-mentioned second antenna feeding circuit is in an operating state, the signal on the above-mentioned second connection path can be conducted.

[0103] That is to say, by setting the second impedance component to an inductor element of 20 to 100 nH, when the first antenna feeding circuit is in an operating state, the first antenna tuning circuit can be directly connected to the second upper frame point, and the signal on the second connection path between the second upper frame point and the second antenna feeding circuit can be isolated to isolate the mutual influence between the first antenna and the second antenna.

[0104] Here, the above-mentioned second impedance component may include multiple inductance elements, which are connected in series with each other, and the multiple inductance elements are all connected to the second connection path between the second upper frame point and the second antenna feeding circuit; or, the above-mentioned second impedance component may also include an inductance element and a resistance element connected in series with the inductance element, and the inductance element and the resistance element are also connected to the above-mentioned second connection path, which is not limited in the embodiments of the present disclosure.

[0105] It should be noted that the embodiment of the present disclosure may also set a first impedance component and a second impedance component, so that when the first radiator receives the wireless signal of the second antenna, it does not affect the frequency band of the wireless signal received by the first antenna by the first radiator. At the same time, when the first radiator receives the wireless signal of the first antenna, it does not affect the frequency band of the wireless signal received by the first radiator by the second antenna, thereby further achieving compatibility between the wireless signal radiated by the first radiator to the first antenna and the wireless signal of the second antenna.

[0106] The antenna module provided by the embodiment of the present disclosure sets a first impedance component on the first connection path between the second upper frame point and the first antenna tuning circuit to isolate the signal on the first connection path when the second antenna feeding circuit is in an operating state, so that the second antenna feeding circuit can be directly connected to the second upper frame point; and sets a second impedance component on the second connection path between the second upper frame point and the second antenna feeding circuit to isolate the signal on the second connection path when the first antenna feeding circuit is in an operating state, so that the first antenna tuning circuit can be directly connected to the second upper frame point, thereby achieving isolation between the first antenna and the second antenna, reducing the influence of the second antenna on the antenna performance of the first antenna, and improving the signal receiving and transmitting performance of the antenna module.

[0107] Figure 5 is a schematic diagram of the structure of an antenna module provided according to an exemplary embodiment Figure 4 ,like Figure 5 As shown, the antenna module provided by the embodiment of the present disclosure has Figure 4 Other components are further added to the antenna module shown, for example, a capacitor component, a switch component, a second radiator and a third radiator.

[0108] like Figure 5 As shown, the antenna module 10 may further include:

[0109] The capacitor component 15 has one end connected between the second impedance component 142 and the second antenna feeding circuit 121 and the other end grounded, and is configured to ground the first radiator 11 .

[0110] Thus, by setting a capacitor component to be grounded between the second impedance component and the second antenna feeding circuit, the energy of the first antenna that is not completely isolated by the second impedance component can be further grounded, thereby solving the mutual influence of the wireless signal received and sent between the second antenna and the first antenna.

[0111] It should be noted that the capacitance value of the above capacitor assembly can be set according to the actual application situation, and the embodiments of the present disclosure do not limit it. For example, the capacitance value of the above capacitor assembly can be the same as or different from the capacitance value of the above capacitor element; for example, the capacitance value of the above capacitor assembly can be 100pf.

[0112] In some embodiments, Figure 5 As shown, the antenna module 10 may further include:

[0113] A switch component 16 connected to a connection line between the isolation circuit 14 and the first antenna tuning circuit 111 of the antenna module 10;

[0114] The second radiator 17 is connected to the switch assembly 16 and is located on a side of the first radiator 11 close to the second upper frame point 13 , and has a first break 101 between the first radiator 11 and the first radiator 11 ;

[0115] When the switch assembly 16 is in a closed state and the first radiator 11 transmits or receives wireless signals, the resonant circuit of the second radiator 17 adjusts the impedance of the second radiator 17 to adjust the frequency of the wireless signals transmitted or received by the second radiator 17 so that the adjusted frequency is away from the frequency of the wireless signals transmitted or received by the first radiator 11.

[0116] In this way, a switch component can be set to be connected to the second radiator, so that the frequency of the second radiator receiving and sending wireless signals can be adjusted by controlling the state of the switch component, so that the adjusted frequency is far away from the frequency of the first radiator receiving and sending wireless signals, thereby reducing the influence of the second radiator on the first radiator and improving the signal receiving and sending performance of the antenna module; at the same time, a first gap between the second radiator and the first radiator can be used to provide clearance between different radiators, thereby facilitating the radiation of wireless signals by different radiators.

[0117] The switch assembly may be a mechanical switch or a signal control switch, which is not limited in the embodiments of the present disclosure.

[0118] Exemplarily, the switch component has two states: "closed" and "open". When the switch component is in the closed state, the connection line between the resonant circuit of the second radiator and the second radiator is switched to the on state, so that the resonant circuit can adjust the impedance of the second radiator, thereby adjusting the frequency of the wireless signal received and transmitted by the second radiator, and adjusting the frequency of the second radiator that originally falls within the frequency band of the wireless signal received and transmitted by the first radiator to a frequency far away from the frequency of the wireless signal received and transmitted by the first radiator, so as to reduce the influence of the second radiator on the first radiator.

[0119] In the disclosed embodiment, the second radiator radiates mobile communication signals; for example, the second radiator may be an N7879 antenna, i.e., a 5G frequency band antenna.

[0120] like Figure 5 As shown, the second radiator 17 is in an L-shape. In this way, the shape of the second radiator can be set to better match the layout of other radiators or functional components in the terminal device, thereby reducing the space occupied by the antenna module in the terminal device.

[0121] In one embodiment of the present disclosure, Figure 5 As shown, the second radiator 17 radiates mobile communication signals; the center frequency of the second radiator 17 receiving and sending wireless signals is greater than the center frequency of the first radiator 11 receiving and sending wireless signals.

[0122] Here, although both the first radiator and the second radiator can radiate mobile communication signals, the type of mobile communication signal radiated by the first radiator is different from the type of mobile communication signal radiated by the second radiator. For example, the first radiator may be an MHB antenna, and the second radiator may be an N7879 antenna; in this case, the center frequency of the wireless signal transmitted and received by the first antenna by the first radiator may be 700 MHz, and the center frequency of the wireless signal transmitted and received by the second radiator may be 4.15 GHz.

[0123] For example, in one embodiment of the present disclosure, the MHB antenna is used head-to-head as a proximity sensor (sar sensor) antenna of the N7879 antenna. The suspension of the long branches of the N7879 antenna will cause a high-frequency loop mode to affect the performance of the N7879 antenna. Figure 6a is a schematic diagram of radiation efficiency of a second radiator in an antenna module when transmitting and receiving wireless signals before adjustment according to an exemplary embodiment; Figure 6a In the network diagram, the horizontal axis represents the frequency band (in GHz) of the second radiator in the antenna module for sending and receiving signals, and the vertical axis represents the radiation efficiency (in dB) of the second radiator before adjustment. Figure 6aAs shown, the efficiency of the initial N7879 antenna has an efficiency pit near 3.2GHz, affecting the performance of the N78 antenna. Figure 6b is a schematic diagram of radiation efficiency of a second radiator in an antenna module when receiving and transmitting wireless signals after adjustment according to an exemplary embodiment; Figure 6b In the network diagram, the horizontal axis represents the frequency band (in GHz) of the second radiator in the antenna module for sending and receiving signals, and the vertical axis represents the adjusted radiation efficiency (in dB) of the second radiator. By controlling the state of the switch component connected to the MHB antenna, when the N7879 antenna is working, the switch component is short-circuited or the capacitor connected to the N7879 antenna is returned to ground, see Figure 6b and Figure 6c , which can destroy the loop mode within the frequency band of the N78 antenna, reduce the impact of the second radiator on the first radiator, and improve the signal receiving and transmitting performance of the antenna module.

[0124] In some embodiments, Figure 5 As shown, the distance between the first upper frame point 112 and the first break 101 is greater than the distance between the second upper frame point 13 and the first break 101 .

[0125] Among them, Figure 5 As shown, the spacing distance between the first upper frame point 112 and the second upper frame point 13 is 4 to 10 mm.

[0126] In this way, the distribution of the first upper frame point and the second upper frame point on the radiator can be reasonably arranged, thereby reducing the space occupied by the antenna module in the terminal device.

[0127] Here, the first slit may be filled with insulating material to provide a clearance between the second radiator and the first radiator, so that the second radiator and the first radiator can radiate different wireless signals respectively.

[0128] For example, in one embodiment of the present disclosure, Figure 7a and Figure 7b As shown, the current signal analysis of the first radiator and the second radiator sending and receiving wireless signals shows that the monopole antenna (monopole) mode from the first upper frame point to the first break is used to send and receive high-frequency signals, while the monopole mode from the second upper frame point to the first break and the loop mode of the antenna module and the second radiator send and receive intermediate frequency signals.

[0129] In some embodiments, Figure 5 As shown, the antenna module 10 may further include:

[0130] The third radiator 19 is located on a side of the first radiator 11 away from the second upper frame point 13 and has a second gap 102 between the first radiator 11 and is configured to radiate navigation signals and wireless network communication signals.

[0131] In this way, the radiators in the antenna module can be arranged more reasonably, reducing the space occupied by the antenna module in the terminal device.

[0132] Among them, the above-mentioned third radiator can radiate navigation signals and wireless network communication signals. For example, the above-mentioned third radiator can be a B32-L1+WIFI2.4 antenna.

[0133] Here, the second slit may also be filled with insulating material to provide a clearance between the third radiator and the first radiator, so as to facilitate the first radiator and the third radiator to radiate different wireless signals respectively.

[0134] A terminal device provided in an embodiment of the present disclosure includes: Figure 8 is a schematic diagram of the structure of a terminal device according to an exemplary embodiment; Figure 8 The terminal device 1 shown comprises at least:

[0135] Conductive housing 20;

[0136] The antenna module 10 described in the above embodiment of the present disclosure;

[0137] The first conductive edge 21 in the conductive housing 20 is reused as the first radiator 11 of the antenna module 10 .

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

[0139] The antenna module proposed in the present disclosure can be set on a conductive shell, or the first conductive edge in the conductive shell can be used as an antenna in a mobile phone for sending and receiving wireless signals, that is, multiplexed as the first radiator of the antenna module of the embodiment of the present disclosure.

[0140] In one embodiment of the present disclosure, Figure 8 As shown, the terminal device 1 may further include: a camera 30 ; the first conductive edge 21 and the camera 30 are located on the same side of the terminal device 1 .

[0141] like Figure 8As shown, the first part of the first conductive edge 21 is multiplexed as the first radiator 11; the second part of the first conductive edge 21 and the second conductive edge 22 adjacent to the first conductive edge 21 are both multiplexed as the second radiator 17 of the antenna module 10; the third part of the first conductive edge 21 and the third conductive edge 23 opposite to the second conductive edge 22 are both multiplexed as the third radiator 19 of the antenna module 10; wherein the first part is located between the second part and the third part.

[0142] Exemplarily, the shape of the conductive shell may be a rectangle, that is, the conductive shell may include opposite long sides and opposite short sides; in this case, the first conductive side may be a short side, and the second conductive side and the third conductive side are two opposite long sides respectively. The first radiator proposed in the present disclosure may be located on a short side, the second radiator may be located on the short side and a long side connected to the short side, and the third radiator may be located on the short side and another long side connected to the short side.

[0143] By multiplexing different conductive edges of the conductive shell as the first radiator, the second radiator and the third radiator, the space occupied by the antenna module in the terminal device is reduced and the flexibility of the layout of other functional components of the terminal device is improved.

[0144] It should be noted that the “first” and “second” in the embodiments of the present disclosure are only for the convenience of description and distinction and have no other specific meanings.

[0145] Fig. 9 1 is a block diagram of a terminal device according to an exemplary embodiment. For example, the terminal device 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.

[0146] Reference Fig. 9 The terminal device may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0147] The processing component 802 generally controls the overall operation of the terminal device, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0148] The memory 804 is configured to store various types of data to support operations on the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0149] The power supply component 806 provides power to various components of the terminal device. The power supply component 806 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.

[0150] The multimedia component 808 includes a screen that provides an output interface between the terminal device and the user. In some embodiments, the screen may include 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 808 includes a front camera and / or a rear camera. When the terminal device 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.

[0151] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal device 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 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0152] I / O interface 812 provides an interface between processing component 802 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.

[0153] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal device. For example, the sensor assembly 814 can detect the open / closed state of the terminal device, the relative positioning of components, such as the display and keypad of the terminal device, and the sensor assembly 814 can also detect the position change of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the orientation or acceleration / deceleration of the terminal device, and the temperature change of the terminal device. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 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 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0154] The communication component 816 is configured to facilitate wired or wireless communication between the terminal device and other devices. The terminal device 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 816 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 816 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.

[0155] In an exemplary embodiment, the terminal device 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.

[0156] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0157] It should be understood that the present invention is not limited to the exact construction that has 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 invention 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 the first upper frame point; a first antenna feeding circuit, electrically connected to the first upper frame point; a second antenna feeding circuit, electrically connected to the second upper frame point; An isolation circuit electrically connects the second upper frame point and the second antenna feed circuit, and is configured to isolate the signal on the second antenna feed circuit when the first antenna feed circuit is in an operating state; and to isolate the signal on the first antenna feed circuit when the second antenna feed circuit is in an operating state.

2. The antenna module according to claim 1, characterized in that: The antenna module further includes: a first antenna tuning circuit connected to the second upper frame point; the isolation circuit includes: The first impedance component is connected to a first connection path between the second upper frame point and the first antenna tuning circuit, and is configured to isolate the signal on the first connection path when the second antenna feeding circuit is in an operating state.

3. The antenna module according to claim 2, characterized in that: The first impedance component includes a capacitive element, and the capacitance value of the capacitive element ranges from 10 to 50 pF.

4. The antenna module according to claim 1, characterized in that: The isolation circuit further comprises: The second impedance component is connected to a second connection path between the second upper frame point and the second antenna feeding circuit, and is configured to isolate the signal on the second connection path when the first antenna feeding circuit is in an operating state.

5. The antenna module according to claim 4, characterized in that: The second impedance component includes an inductor element, and the inductance value of the inductor element ranges from 20 to 100 nanohenries.

6. The antenna module according to claim 4, characterized in that: The antenna module also includes: A capacitor component has one end connected between the second impedance component and the second antenna feeding circuit and the other end grounded, and is configured to ground the first radiator.

7. The antenna module according to any one of claims 1 to 6, characterized in that: The antenna module also includes: a switch component connected to a connection line between the isolation circuit and the first antenna tuning circuit of the antenna module; A second radiator, connected to the switch assembly, located on a side of the first radiator close to the second upper frame point, and having a first gap between the first radiator and the first radiator; When the switch component is in a closed state and the first radiator receives or transmits wireless signals, the resonant circuit of the second radiator adjusts the impedance of the second radiator to adjust the frequency of the wireless signals received or transmitted by the second radiator so that the adjusted frequency is away from the frequency of the wireless signals received or transmitted by the first radiator.

8. The antenna module according to claim 7, characterized in that: The second radiator radiates mobile communication signals; and a center frequency of wireless signals received and sent by the second radiator is greater than a center frequency of wireless signals received and sent by the first radiator.

9. The antenna module according to claim 7, characterized in that: The distance between the first upper frame point and the first break is greater than the distance between the second upper frame point and the first break.

10. The antenna module according to claim 7, characterized in that: The first radiator is in a straight line shape; the second radiator is in an L shape.

11. The antenna module according to any one of claims 1 to 6, characterized in that: The first antenna feed circuit transmits a mobile communication signal, and the second antenna feed circuit transmits a near field communication signal.

12. The antenna module according to any one of claims 1 to 6, characterized in that: The interval distance between the first upper frame point and the second upper frame point is 4 to 10 mm.

13. The antenna module according to any one of claims 1 to 6, characterized in that: The antenna module also includes: a first elastic connector, one end of which is connected to the first upper frame point, and the other end of which is connected to the first antenna feeding circuit, and is configured to input a feeding current of the first antenna feeding circuit to the first upper frame point; The second elastic connector has one end connected to the second upper frame point and the other end connected to the second antenna feeding circuit, and is configured to input the feeding current of the second antenna feeding circuit to the second upper frame point.

14. The antenna module according to any one of claims 1 to 6, characterized in that: The antenna module also includes: The third radiator is located on a side of the first radiator away from the second upper frame point and has a second gap between the first radiator and the third radiator, and is configured to radiate navigation signals and wireless network communication signals.

15. A terminal device, characterized in that: include: Conductive housing; The antenna module according to any one of claims 1 to 14; Wherein, the first conductive edge in the conductive shell is reused as the first radiator of the antenna module.

16. The terminal device according to claim 15, characterized in that: The terminal device also includes: a camera; The first conductive edge and the camera are located on the same side of the terminal device.

17. The terminal device according to claim 15, characterized in that: A first portion of the first conductive edge is reused as the first radiator; The second part of the first conductive edge and the second conductive edge arranged adjacent to the first conductive edge are reused as a second radiator of the antenna module; The third part of the first conductive edge and the third conductive edge arranged opposite to the second conductive edge are both reused as the third radiator of the antenna module; Wherein, the first part is located between the second part and the third part.

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