Antenna module, communication equipment, communication control method and device

Abstract

The invention relates to an antenna module, communication equipment and a communication control method and device. The antenna module comprises a first antenna, a second antenna and a third antenna, wherein the first antenna and the second antenna are arranged at an interval; the third antenna is arranged between the first antenna and the second antenna and is arranged at an interval with at least one of the first antenna and the second antenna; the first antenna, the second antenna and the third antenna can be used as existing physical structures in the antenna module to realize a basic communication function; the third antenna can increase the distance between the first antenna and the second antenna and improve the isolation between the first antenna and the second antenna, and under the condition that the first antenna and the second antenna work in the first frequency band and the third antenna works in any other second frequency band, the third antenna can be multiplexed as a decoupling structure to decouple the first antenna and the second antenna. The isolation degree between the first antenna and the second antenna is further improved; and on the basis of multiplexing of the third antenna, space multiplexing is also realized, and the stacking space of the antenna module is reduced.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna module, communication equipment, and a communication control method and apparatus. Background Art

[0002] With the continuous development of communication technology, the trend of miniaturization of communication equipment is becoming more and more obvious. At the same time, the frequency bands that communication equipment needs to support are getting wider and wider, so the number of antennas is also increasing, which leads to increased mutual coupling between antennas and reduced antenna performance. Summary of the invention

[0003] The embodiments of the present application provide an antenna module, a communication device, a communication control method and an apparatus. In a first aspect, the present application provides an antenna module, including:

[0004] First antenna;

[0005] A second antenna is spaced apart from the first antenna, and the first antenna and the second antenna can operate in the same frequency band;

[0006] a third antenna, disposed between the first antenna and the second antenna, and spaced apart from at least one of the first antenna and the second antenna;

[0007] Among them, the first antenna, the second antenna and the third antenna respectively work under the excitation of the corresponding feeding signal; when the first antenna and the second antenna work in the first frequency band, the third antenna works in any second frequency band except the first frequency band under the excitation of the feeding signal to decouple the first antenna and the second antenna.

[0008] A second aspect of the present application provides a communication device, comprising the antenna module as described above.

[0009] A third aspect of the present application provides a communication control method, including:

[0010] When the first antenna and the second antenna operate in a first frequency band, controlling the third antenna to operate in any second frequency band except the first frequency band, so that the third antenna decouples the first antenna and the second antenna;

[0011] Among them, the second antenna is arranged at an interval with the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is arranged between the first antenna and the second antenna, and is arranged at an interval with at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of the corresponding feeding signal.

[0012] A fourth aspect of the present application provides a communication control device, which is used to control a third antenna to operate in any second frequency band except the first frequency band when a first antenna and a second antenna operate in a first frequency band, so that the third antenna decouples the first antenna and the second antenna;

[0013] Among them, the second antenna is arranged at an interval with the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is arranged between the first antenna and the second antenna, and is arranged at an interval with at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of the corresponding feeding signal.

[0014] The antenna module, communication equipment, communication control method and device include a first antenna and a second antenna arranged at intervals, and a third antenna arranged between the first antenna and the second antenna and arranged at intervals from at least one of the first antenna and the second antenna. On the one hand, the first antenna, the second antenna and the third antenna correspond to their own feed signals respectively, and the first antenna, the second antenna and the third antenna can all be used as existing physical structures in the antenna module to realize basic communication functions; on the other hand, the third antenna can not only increase the distance between the first antenna and the second antenna, but also improve the isolation between the first antenna and the second antenna. In the case where the first antenna and the second antenna work in the first frequency band and the third antenna works in any second frequency band except the first frequency band, the third antenna can be reused as a decoupling structure to decouple the first antenna and the second antenna, and further improve the isolation between the first antenna and the second antenna; on the basis of the reuse of the third antenna, spatial reuse is also realized, which is conducive to reducing the stacking space of the antenna module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is one of the structural block diagrams of an antenna module according to an embodiment;

[0017] Figure 2 This is a second structural block diagram of an antenna module according to an embodiment;

[0018] Figure 3 This is a third structural block diagram of an antenna module according to an embodiment;

[0019] Figure 4This is one of the circuit diagrams of an antenna module according to an embodiment;

[0020] Figure 5 This is a fourth structural block diagram of an antenna module according to an embodiment;

[0021] Figure 6 This is a fifth structural block diagram of an antenna module according to an embodiment;

[0022] Figure 7 This is a sixth structural block diagram of an antenna module according to an embodiment;

[0023] Figure 8 One of the structural block diagrams of the antenna module in the related art;

[0024] Fig. 9 The second structural block diagram of the antenna module in the related art;

[0025] Fig.10 is the isolation curve of the antenna module at 1.77 GHz in the related art;

[0026] Fig.11 for Figure 7 Isolation curve of the antenna module of the embodiment at 1.77 GHz;

[0027] Fig.12 is the isolation curve of the antenna module at 2.6 GHz in the related art;

[0028] Fig.13 for Figure 7 Isolation curve of the antenna module of the embodiment at 2.6 GHz;

[0029] Fig.14 The second circuit diagram of the antenna module of an embodiment;

[0030] Fig.15 for Figure 7 Efficiency comparison diagram of the antenna module of the embodiment before and after adding a tuning circuit;

[0031] Fig.16 One of the structural block diagrams of a communication device in an embodiment;

[0032] Fig.17 This is a second structural block diagram of a communication device in an embodiment;

[0033] Fig.18 The third structural block diagram of a communication device in an embodiment;

[0034] Fig.19 This is a fourth structural block diagram of a communication device in an embodiment;

[0035] Fig. 20This is a fifth structural block diagram of a communication device in an embodiment. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" or "second" can explicitly or implicitly include at least one of the features.

[0038] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0039] In related technologies, in order to improve the isolation between antennas and reduce the mutual coupling between antennas, methods such as increasing the ground distance between antennas, metamaterial structure decoupling, neutralization line decoupling, and mode orthogonal decoupling can be adopted.

[0040] Among them, due to the limitations of the miniaturization of communication equipment, the ground paving distance cannot be increased blindly; the metamaterial decoupling method needs to introduce multiple regular special structures, which occupies a larger stacking space; the neutralization line decoupling needs to connect microstrip lines between different antennas, which also occupies stacking space and affects the impedance of the antenna itself; and the mode orthogonality rule has high requirements on the spatial layout and feeding phase of the two antennas, which leads to limited stacking and PCB layout.

[0041] Based on this, the embodiments of the present application provide an antenna module, a communication device, a communication control method and an apparatus, which can improve the isolation between antennas and reduce the mutual coupling between antennas while saving stacking space.

[0042] Figure 1 FIG. 1 is a structural block diagram of an antenna module 10 according to an embodiment of the present invention. Figure 1 In this embodiment, the antenna module 10 includes a first antenna 100 , a second antenna 200 and a third antenna 300 .

[0043] The second antenna 200 is arranged at a distance from the first antenna 100, and the first antenna 100 and the second antenna 200 can work in the same frequency band; the third antenna 300 is arranged between the first antenna 100 and the second antenna 200, and is arranged at a distance from at least one of the first antenna 100 and the second antenna 200. The first antenna 100, the second antenna 200 and the third antenna 300 work under the excitation of different feeding signals respectively; when the first antenna 100 and the second antenna 200 work in the first frequency band, the third antenna 300 works in any second frequency band except the first frequency band, so as to decouple the first antenna 100 and the second antenna 200.

[0044] The third antenna 300 is disposed between the first antenna 100 and the second antenna 200 and is spaced apart from at least one of the antennas, which may include: the third antenna 300 is spaced apart from the first antenna 100 and the second antenna 200; or the third antenna 300 is spaced apart from the first antenna 100 and is adjacent to the second antenna 200 ( Figure 1 This is used as an example for illustration); or, the third antenna 300 is spaced apart from the second antenna 200 and is adjacent to the first antenna 100.

[0045] Among them, the first antenna 100, the second antenna 200 and the third antenna 300 work under the stimulation of the corresponding feed signal, which can be understood as each antenna can independently receive and transmit electromagnetic wave signals under the stimulation of the feed signal received by each antenna to achieve their respective communication functions. Further, the first antenna 100 and the second antenna 200 can work in the first frequency band under the stimulation of the feed signal received by each antenna, which may include: when the first antenna 100 and the second antenna 200 work at the same time, the working frequency bands of the first antenna 100 and the second antenna 200 partially overlap, and the partially overlapping frequency bands include the first frequency band; or, when the first antenna 100 and the second antenna 200 work at the same time, the working frequency bands of the first antenna 100 and the second antenna 200 are the same, and the same frequency bands include the first frequency band.

[0046] It can be understood that in the related art, if the antenna module 10 only includes the first antenna 100 and the second antenna 200 which are arranged at intervals, when the first antenna 100 and the second antenna 200 work in the first frequency band, since the first antenna 100 and the second antenna 200 work at the same frequency, the first antenna 100 and the second antenna 200 are coupled to each other. In the present embodiment, the antenna module 10 also includes a third antenna 300 arranged between the first antenna 100 and the second antenna 200. On the one hand, the first antenna 100, the second antenna 200 and the third antenna 300 respectively correspond to their own feeding signals, and each antenna can independently transmit and receive electromagnetic wave signals. Therefore, the first antenna 100, the second antenna 200 and the third antenna 300 can all be used as the existing physical structure in the antenna module 10 to realize the basic communication function; on the other hand, the third antenna 300 is arranged between the first antenna 100 and the second antenna 200 and is connected to at least one of the first antenna 100 and the second antenna 200. The antenna spacing setting can not only increase the distance between the first antenna 100 and the second antenna 200, but also improve the isolation between the first antenna 100 and the second antenna 200. In addition, when the first antenna 100 and the second antenna 200 work in the first frequency band and the third antenna 300 works in any second frequency band other than the first frequency band, the third antenna 300 can be reused as a decoupling structure to decouple the first antenna 100 and the second antenna 200, thereby further improving the isolation between the first antenna 100 and the second antenna 200. On the basis of the reuse of the third antenna 300, spatial reuse is also achieved, which is beneficial to reducing the stacking space of the antenna module 10. It can be understood that the second frequency band can be other frequency bands outside the range of the first frequency band, so the third antenna 300 has a wider decoupling bandwidth.

[0047] Therefore, the antenna module 10 of the present embodiment can improve the isolation between antennas by using the existing physical structure without introducing additional structures, thus saving stacking space.

[0048] In one embodiment, the first antenna 100 includes a first radiator 110 and a first feed source S1, the second antenna 200 includes a second radiator 210 and a second feed source S2, and the third antenna 300 includes a third radiator 310 and a third feed source S3; the third radiator 310 is spaced apart from at least one of the first radiator 110 and the second radiator 210 ( Figure 2 The third radiator 310 is spaced apart from the first radiator 110 and is disposed adjacent to the second radiator 210 as an example for illustration).

[0049] The feeding point of the first radiator 110 is connected to the first feed source S1, the grounding point of the first radiator 110 is connected to the ground, the feeding point of the second radiator 210 is connected to the second feed source S2, the grounding point of the second radiator 210 is connected to the ground, the feeding point of the third radiator 310 is connected to the third feed source S3, and the grounding point of the third radiator 310 is connected to the ground. Thus, the radiator of each antenna is connected to a feed source through a feeding point to receive the feed signal of the feed source, and is connected to the ground through a grounding point so that the current generated by the excitation of the radiator flows back to the ground. Each radiator can independently receive and transmit electromagnetic wave signals under the excitation of the received feed signal to realize its own communication function.

[0050] Optionally, the size of each radiator, the position of the feeding point, and the position of the grounding point can be set according to the actual working frequency band required. For example, the size of the slot position from the grounding point of the third radiator 310 to the feeding point is the length of the third antenna 300. When the slot position is fixed, the position of the grounding point of the third radiator 310 is adjusted according to the working frequency band of the third antenna 300. Optionally, the feeding point of each radiator can be connected to the feed source through a feeding branch, and the grounding point of each radiator can be connected to the floor through a grounding branch or a grounding circuit. Figure 2 Take the example that each grounding point is connected to the floor through a grounding branch, for example, the grounding branch of the first antenna 100 is 120, the grounding branch of the second antenna 200 is 220, and the grounding branch of the third antenna 300 is 320), and each feeding branch, each radiator, each grounding circuit or grounding branch, etc., constitute each antenna accordingly. Each feed source can be a device that provides an excitation signal, such as a radio frequency chip, which can be determined according to actual needs and is not limited in the embodiments of the present application. Optionally, a matching circuit can be set between the feeding point of each radiator and the feed source to perform impedance matching; optionally, a tuning circuit can be set between the feeding point of each radiator and the feed source to adjust the resonant frequency, so that each antenna can switchably operate in different target frequency bands to increase the bandwidth of each antenna.

[0051] Wherein, when the first feed source S1 and the second feed source S2 respectively excite the first radiator 110 and the second radiator 210 to work in the first frequency band, the third feed source S3 excites the third radiator 310 to work in the second frequency band. The first radiator 110, the second radiator 210 and the third radiator 310 are respectively connected to the first feed source S1, the second feed source S2 and the third feed source S3 to receive the feed signals of the connected feed sources. Each radiator supports the transmission and reception of electromagnetic wave signals under the action of independent feed source signals, so as to realize the basic communication function as the existing physical structure in the antenna module 10; on the other hand, the third radiator 310 is arranged between the first radiator 110 and the second radiator 210 and is at least connected to the first radiator 110 and the second radiator 210. 0, not only can the distance between the first antenna 100 and the second antenna 200 be increased, and the isolation between the first antenna 100 and the second antenna 200 be improved, but also when the first antenna 100 and the second antenna 200 operate in a first frequency band and the third antenna 300 operates in a second frequency band different from the first frequency band, the third antenna 300 can be reused as a decoupling structure to decouple the first antenna 100 and the second antenna 200, thereby further improving the isolation between the first antenna 100 and the second antenna 200.

[0052] Alternatively, please refer to Figure 2 The first radiator 110 has a first free end, the second radiator 210 has a second free end, and the third radiator 310 has a third free end (corresponding to Figure 2 Each free end is a slot of each antenna, so that each radiator is open-circuited.

[0053] Among them, the second radiator 210 and the third radiator 310 are adjacent to each other to form a radiating branch, and the end of the radiating branch close to the first radiator 110 is the third free end of the third radiator 310, and the third free end is spaced apart from the first free end; the end of the radiating branch away from the first radiator 110 is the second free end of the second radiator 210.

[0054] Thus, the first antenna 100 and the third antenna 300 form two antennas that are mouth-to-mouth and spaced apart, and the third antenna 300 and the second antenna 200 form two antennas that are "back-to-back" and adjacent to each other, which helps to narrow the overall occupied space of the antenna module 10 while improving the isolation between the first antenna 100 and the second antenna 200, and further reduce the stacking space. In addition, when the antenna module 10 is applied to a communication device, and the first antenna 100, the second antenna 200 and the third antenna 300 are respectively frame antennas, the three antennas can be formed by opening a gap in the frame, which helps to simplify the preparation process and reduce costs.

[0055] It can be understood that in other embodiments, the second antenna 200 and the third antenna 300 can form two antennas that are mouth-to-mouth and spaced apart, and the third antenna 300 and the first antenna 100 can form two antennas that are "back-to-back" and adjacent to each other. Similarly, while improving the isolation between the first antenna 100 and the second antenna 200, the overall occupied space of the antenna module 10 can be narrowed, thereby further reducing the stacking space.

[0056] Alternatively, please refer to Figure 3 The first radiator 110 has a first free end, the second radiator 210 has a second free end, and the third radiator 310 has a third free end.

[0057] Among them, the third radiator 310 is spaced apart from the first radiator 110 and the second radiator 210 respectively, the end of the first radiator 110 close to the third radiator 310 is the first free end, the end of the second radiator 210 close to the third radiator 310 is the second free end, and the end of the third radiator 310 close to the first radiator 110 is the third free end.

[0058] Thus, the first antenna 100 and the third antenna 300 form two antennas that are mouth-to-mouth and spaced apart, and the third antenna 300 and the second antenna 200 form two antennas that have the same radiation direction and are spaced apart. Thus, on the basis of the third antenna 300 being reused as a decoupling structure, the distance between the first antenna 100 and the second antenna 200 is further increased, and the isolation between the first antenna 100 and the second antenna 200 is further improved while reducing the stacking space. In addition, when the antenna module 10 is applied to a communication device, and the first antenna 100, the second antenna 200 and the third antenna 300 are respectively frame antennas, the three antennas can be formed by opening two slits on the frame, which is conducive to simplifying the preparation process and reducing costs.

[0059] It can be understood that in other embodiments, the second antenna 200 and the third antenna 300 can form two antennas that are mouth-to-mouth and spaced apart, and the third antenna 300 and the first antenna 100 can form two antennas that have the same radiation direction and are spaced apart. Similarly, on the basis of the third antenna 300 being multiplexed as a decoupling structure, the distance between the first antenna 100 and the second antenna 200 can be further increased, thereby further improving the isolation between the first antenna 100 and the second antenna 200 while reducing the stacking space.

[0060] In one embodiment, if Figure 4 As shown, the third antenna 300 further includes a tuning circuit 330 .

[0061] The tuning circuit 330 is connected to the third feed source S3 and the feeding point of the third radiator 310 respectively, and is used to adjust the resonant frequency of the third radiator 310 so that the third radiator 310 operates in a target frequency band, which includes the second frequency band.

[0062] Among them, the tuning circuit 330 has a tuning function, and by receiving the feeding signal of the third feed source S3 and adjusting the feeding signal, the resonant frequency of the third radiator 310 is adjusted, so that the third radiator 310 works in the target frequency band. The target frequency band includes the second frequency band, which can be understood as the target frequency band being the second frequency band; it can also be understood as a plurality of different frequency bands including the second frequency band. When the target frequency band is the second frequency band, by setting the tuning circuit 330, the resonant frequency of the second frequency band can be more accurately tuned to ensure that the third radiator 310 works in the second frequency band; when the target frequency includes a plurality of different frequency bands, by setting the tuning circuit 330, the resonant frequency of the third radiator 310 can be adjusted so that the third radiator 310 switches among a plurality of different frequency bands including the second frequency band, thereby improving the bandwidth of the third radiator 310. Furthermore, the third radiator 310 operating in the second frequency band will decouple the first antenna 100 and the second antenna 200, thereby improving the isolation between the first antenna 100 and the second antenna 200, so that the tuning circuit 330 uses its tuning function to also assist in realizing the decoupling function. It can be understood that in other embodiments, the first antenna 100 and the second antenna 200 may also include a tuning circuit respectively to adjust the resonant frequency of the first radiator 110 and the second radiator 210, so that the first radiator 110 and the second radiator 210 operate in different frequency bands, realizing a multi-band communication function including the first frequency band.

[0063] Optionally, the tuning circuit 330 includes at least one tuning unit. When the number of tuning units is one, the two ends of the tuning unit are respectively connected to the feeding point and the ground of the third radiator 310; when the number of tuning units is multiple, it also includes a tuning switch, one end of each tuning unit is connected to the third radiator 310, and the other end of each tuning unit is connected to the tuning switch, so as to be switchably connected to the ground through the tuning switch, and the tuning parameters of the multiple tuning units are different. The tuning parameters may include inductance and / or capacitance values, and may also include resistance values. The tuning units with different tuning parameters may include inductance and / or capacitance of different values, and may also include resistance of different values. By switching the on-off state of the path where each tuning unit is located, the current excited by the feeding signal in the third radiator 310 is returned to the ground through the tuning units with different tuning parameters, so that the aperture tuning of the third radiator 310 can be achieved to switch the resonance of different resonant frequency ranges, so that the resonance in different states can cooperate to cover multiple frequency bands.

[0064] In one embodiment, the first radiator 110 has a first free end, the third radiator 310 has a third free end, the first free end and the third free end are spaced apart and form a coupling gap; the tuning circuit 330 is also used to tune the resonant frequency of the first radiator 110 in the first frequency band.

[0065] Among them, since the first free end of the first radiator 110 and the third free end of the third radiator 310 are spaced apart and form a coupling gap, the first antenna 100 and the third antenna 300 form adjacent mouth-to-mouth antennas. During the process of adjusting the resonant frequency of the third antenna 300, the tuning circuit 330 will also play a role in tuning the resonant frequency of the first antenna 100, so as to tune the aperture of the first antenna 100 and improve the efficiency of the antenna.

[0066] It can be understood that in other embodiments, according to actual needs, the second free end and the third free end of the second radiator 210 can be arranged to be spaced apart and form a coupling gap, so that the first antenna 100 and the third antenna 300 form adjacent mouth-to-mouth antennas. During the process of adjusting the resonant frequency of the third antenna 300, the tuning circuit 330 will also play a role in tuning the resonant frequency of the second antenna 200, so as to play a role in tuning the aperture of the second antenna 200, so as to improve the efficiency of the antenna.

[0067] In the related art, the third radiator 310 connected to the tuning circuit 330 exists only as a radiator, and the tuning circuit 330 only improves the bandwidth and efficiency of the antenna, and does not give other functions. In this embodiment, while optimizing the transceiver performance of the third radiator 310, the tuning switch also combines the first radiator 110 and the second radiator 210 working in the first frequency band to multiplex into a decoupling structure, thereby achieving decoupling of the first radiator 110 and the second radiator 210 and achieving effective utilization of the tuning circuit 330. At the same time, when the third antenna 300 forms a mouth-to-mouth antenna with any of the first antenna 100 and the second antenna 200, it plays a role in tuning the aperture of the antenna to improve the efficiency of the antenna.

[0068] In one embodiment, based on any one of the above embodiments, as Figure 5 , Figure 6 As shown, the antenna module 10 may also include an isolation circuit (the figure takes the isolation circuit including a grounding capacitor C1 and a grounding capacitor C2 as an example for illustration), one end of the isolation circuit is connected to the grounding point of at least one of the first radiator 110, the second radiator 210 and the third radiator 310, and the other end of the isolation circuit is grounded. The isolation circuit is used to isolate the electrically connected radiator from the ground.

[0069] The isolation circuit can isolate the electrically connected radiator from the ground, so that the electrically connected radiator does not have a current path directly to the ground and is in a suspended state. When applied to a communication device, the radiator in a suspended state can be reused as an electrical connection structure (Sensor pad) of a sensor to connect to a proximity sensor, so that the proximity sensor detects the change in capacitance value caused by the target object approaching the antenna module 10, thereby further improving the applicability of the antenna module 10. The target object can be, for example, a user. When the proximity sensor detects that the target object is not close to the antenna module 10, it can generate a first control signal to instruct the controller in the communication device to control the antenna module 10 to receive and transmit electromagnetic wave signals at a first receiving and transmitting power; when the target object is detected to be close to the antenna module 10, it can generate a second control signal to instruct the controller in the communication device to control the antenna module 10 to receive and transmit electromagnetic wave signals at a second receiving and transmitting power, and the second receiving and transmitting power is less than the first receiving and transmitting power. Therefore, when applied to communication equipment, based on the radiator and the proximity sensor multiplexed as the sensor electrical connection structure, the absorption ratio (Specific Absorption Rate, SAR) of the target object to the electromagnetic waves received and transmitted by the antenna module 10 can be reduced, thereby improving the safety of the user using the communication equipment used by the antenna module 10.

[0070] Optionally, the isolation circuit can adjust the number of components and the connection relationship of the components in the isolation circuit according to the required number of radiators multiplexed as an electrical connection structure in actual applications. For example, the isolation circuit may include at least one isolation capacitor or at least one LC bandpass circuit, and each isolation capacitor or LC bandpass circuit is connected to a radiator that needs to be multiplexed as an electrical connection structure to suspend the radiator. In the figure, the second radiator 210 and the third radiator 310 are multiplexed as electrical connection structures respectively, and the isolation circuit includes two isolation capacitors as an example for illustration.

[0071] In one of the embodiments, based on any of the above embodiments, the first frequency band is in the range of 1.71 to 2.69 GHz, and the second frequency band includes any one of the GPS L5 band, N78 band, N79 band, and WIFI / BT 5G band; or the second frequency band is in the range of 1.71 to 2.69 GHz, and the first frequency band includes any one of the GPS L5 band, N78 band, N79 band, and WIFI / BT 5G band.

[0072] Among them, the frequency bands in the range of 1.71 to 2.69 GHz include medium frequency bands, high frequency bands and WIFI / BT 2.4G frequency bands, etc. Therefore, when the first frequency band or the second frequency band is in the range of 1.71 to 2.69 GHz, the first frequency band or the second frequency band can further be any one of the medium frequency band, high frequency band and WIFI / BT 2.4G frequency band.

[0073] Thus, when the first frequency band includes any one of the medium frequency band, the high frequency band and the WIFI / BT 2.4G frequency band, the second frequency band may include any one of the GPS L5 frequency band, the N78 frequency band, the N79 frequency band, and the WIFI / BT 5G frequency band; when the second frequency band includes any one of the medium frequency band, the high frequency band and the WIFI / BT 2.4G frequency band, the first frequency band may include any one of the GPS L5 frequency band, the N78 frequency band, the N79 frequency band, and the WIFI / BT 5G frequency band. The first antenna 100, the second antenna 200, the third antenna 300, etc. all have a wide bandwidth and can at least support network standards such as 4G, 5G, GPS and WIFI / BT. It can be understood that the planning of the first frequency band and the second frequency band in the embodiment of the present application is not limited to the above embodiment, and can also be other combinations. As long as the working frequency bands of the third antenna 300 and the first antenna 100 and the second antenna 200 are different, the technical solution can be implemented.

[0074] In the following, the first frequency band is in the range of 1.71 to 2.69 GHz and the second frequency band is the GPS L5 frequency band, and the structure of the antenna module 10 of this embodiment is as follows: Figure 7 The structure shown in the figure is an antenna module 10 of the related art. Figure 8 (The space between the first antenna 100 and the second antenna 200 is covered with ground to increase isolation) and Fig. 9 (No processing is performed between the first antenna 100 and the second antenna 200) The structure shown in the figure is taken as an example to further explain the above embodiment:

[0075] The matching and switching states of the first antenna 100 and the second antenna 200 are adjusted so that both of them resonate at about 1.77 GHz. Fig.10 The isolation curves when the ground is completely laid between the two antennas and when no treatment is done are shown. It can be seen that the isolation when the ground is completely laid and when no treatment is done is -18dB and -7dB respectively. Fig.11 3 is the return loss and isolation curve of the present embodiment when it is working (wherein, S1,1 is the relevant curve of the first antenna 100, S2,2 is the relevant curve of the third antenna 300, S3,3 is the relevant curve of the second antenna 200, and S3,1 is the relevant curve of the first antenna 100 and the second antenna 200 in the related technology). It can be seen that the first antenna 100 and the second antenna 200 work at 1.77 GHz, and the third antenna 300 works at GPS L5. At this time, the isolation between the first antenna 100 and the second antenna 200 is -19 dB, which is equivalent to the isolation when the ground is completely paved between the two antennas.

[0076] The matching and switching states of the first antenna 100 and the second antenna 200 are adjusted so that both of them resonate at about 2.6 GHz. Fig.12The isolation curves for the two antennas when the ground is completely laid and when no treatment is done are shown. It can be seen that the isolation when the ground is completely laid and when no treatment is done is -14dB and -18dB respectively. Fig.13 The return loss and isolation curves of this embodiment are shown. It can be seen that the first antenna 100 and the second antenna 200 work at 2.6 GHz, and the third antenna 300 works at GPS L5. At this time, the isolation between the first antenna 100 and the second antenna 200 is -27 dB, which is better than the isolation when the ground is completely paved between the two antennas.

[0077] Furthermore, compared with the addition of (eg Fig.14 As shown in the figure, the tuning circuit 330 includes a tuning unit and the tuning unit includes a series capacitor and a parallel LC circuit) and two cases where the tuning circuit 330 is not added:

[0078] In the two cases where the tuning circuit 330 is added or not added to the matching circuit of the second antenna 200, the efficiency of the first antenna 100 at 1.76 GHz and 2.6 GHz is as follows: Fig.15 As shown, it can be seen that in this embodiment, when the third antenna 300 includes the tuning circuit 330 as shown in the figure, it can also play the effect of tuning the first antenna 100, so that the efficiency of the first antenna 100 is improved by 0.7-2dB. Therefore, in this embodiment, while the third antenna 300 works normally in the GPS L5 frequency band, the overall isolation of the first antenna 100 and the second antenna 200 under a wider bandwidth is improved on the basis of reducing the stacking space; at the same time, the third antenna 300 and the first antenna 100 are mouth-to-mouth antennas, and adding the tuning circuit 330 in the matching of the third antenna 300 can also improve the efficiency of the first antenna 100.

[0079] The present application also provides a communication device 20, including the antenna module 10 in the above embodiment. The communication device 20 can improve the isolation between antennas by using the existing physical structure without introducing additional structures, thus saving stacking space.

[0080] The communication device 20 may be a handheld device, an in-vehicle device, a smart car, a wearable device, a computing device, a customer premise equipment (CPE) or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., a mobile phone), a mobile station (MS), etc. For the convenience of description, the above-mentioned devices are collectively referred to as the communication device 20.

[0081] Optionally, the communication device 20 further includes a plurality of frames connected end to end in sequence; at least two antennas among the first antenna 100, the second antenna 200, and the third antenna 300 are arranged on the same frame.

[0082] For example, the communication device 20 also includes four frames connected end to end. Fig.16 As shown, the middle frame of the communication device 20 includes a middle plate and a top frame 510, a bottom frame 520, and a first side frame 530 and a second side frame 540 between the top frame 510 and the bottom frame 520. The top frame 510, the first side frame 530, the bottom frame 520, and the second side frame 540 are connected end to end in sequence to form a roughly rectangular frame shape for supporting and protecting the display screen assembly. The specific connection between the frames can be a right-angle connection or an arc transition connection.

[0083] The middle board can be used to install the battery, main board, camera module and other electronic components of the communication device 20. The main board can integrate the processor, storage unit, power management module, baseband chip and other electronic components of the communication device 20. The main board can be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit). The floor in the above embodiment can be a grounding layer ( Fig.16 Only the floor is shown). Part of the RF circuit for processing RF signals may be integrated on the circuit board, and a controller capable of controlling the operation of the communication device 20 may also be integrated. The RF circuit may be connected to the antenna module 10 involved in the present application to support the transceiver processing of RF signals, and the RF circuit includes but is not limited to at least one transceiver, a power amplifier, a low noise amplifier, a duplexer, a coupler, etc. In addition, the RF circuit may also communicate with the network and other devices through wireless communication.

[0084] Among them, the first antenna 100, the second antenna 200, and the third antenna 300 of the antenna module 10 can be formed on any frame of the top frame 510, the first side frame 530, the bottom frame 520 and the second side frame 540, respectively, and at least two antennas of the first antenna 100, the second antenna 200, and the third antenna 300 are arranged on the same frame, so that the first antenna 100, the second antenna 200, the third antenna 300, etc. are arranged close to each other and spaced apart.

[0085] For example, Fig.17 As shown ( Fig.17 Only a partial structure is shown), the first radiator 110 and a portion of the third radiator 310 are respectively formed on the top frame 510, and another portion of the third radiator 310 and the second radiator 210 are respectively formed on the first side frame 530 (the tuning circuit is not shown in the figure); for example, Fig.18 , 19 As shown ( Fig.17 Only a partial structure is shown), the first radiator 110, the second radiator 210, and the third radiator 310 are respectively formed on the first side frame 530 (the tuning circuit is not shown in the figure).

[0086] Further, the communication device 20 is taken as a mobile phone 11 as an example for explanation. Specifically, Fig. 20 As shown, the mobile phone 11 may include a memory 21 (which may optionally include one or more computer-readable storage media), a processor 22, a peripheral device interface 23, a radio frequency system 24 (including the antenna module 10 in the above embodiment), and an input / output (I / O) subsystem 26. These components may communicate via one or more communication buses or signal lines 29. Those skilled in the art will appreciate that Fig. 20 The illustrated mobile phone 11 does not constitute a limitation of the mobile phone, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components. Fig. 20 The various components shown in the EMBODIMENTS 2000 are implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits.

[0087] The memory 21 optionally includes a high-speed random access memory, and optionally also includes a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, the software components stored in the memory 21 include an operating system 211, a communication module (or an instruction set) 212, a global positioning system (GPS) module (or an instruction set) 213, etc.

[0088] The processor 22 and other control circuits (such as control circuits in the radio frequency system 24) can be used to control the operation of the mobile phone 11. The processor 22 can be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated circuits, etc.

[0089] The processor 22 may be configured to implement a control algorithm for controlling the use of an antenna in the mobile phone 11. The processor 22 may also issue control commands for controlling switches in the antenna module 24, etc.

[0090] The I / O subsystem 26 couples input / output peripherals on the mobile phone 11, such as a keypad and other input control devices, to the peripheral device interface 23. The I / O subsystem 26 optionally includes a touch screen, buttons, a tone generator, an accelerometer (motion sensor), an ambient light sensor and other sensors, light emitting diodes and other status indicators, a data interface, etc. Exemplarily, a user can control the operation of the mobile phone 11 by supplying commands via the I / O subsystem 26, and can use the output resources of the I / O subsystem 26 to receive status information and other output from the mobile phone 11. For example, a user can press button 261 to turn the mobile phone on or off.

[0091] The present application also provides a communication control method, including: when the first antenna and the second antenna operate in the first frequency band, controlling the third antenna to operate in any second frequency band other than the first frequency band, so that the third antenna decouples the first antenna and the second antenna; wherein the second antenna is spaced apart from the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is disposed between the first antenna and the second antenna, and is spaced apart from at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of the corresponding feed signal. For the relevant description of the first antenna, the second antenna and the third antenna, please refer to the relevant introduction in the above embodiment, which will not be repeated here.

[0092] Optionally, the communication control method can be executed by a processor in the communication device. When the processor detects that the first antenna and the second antenna are operating in the first frequency band, the on-off state of the tuning switch inside the second feed source or the tuning circuit is controlled, thereby controlling the second feed source or the tuning circuit to operate at the target tuning parameters, so as to adjust the third antenna to operate in the second frequency band, thereby achieving decoupling of the first antenna and the second antenna.

[0093] The present application also provides a communication control device, which is used to control the third antenna to operate in any second frequency band except the first frequency band when the first antenna and the second antenna operate in the first frequency band, so that the third antenna decouples the first antenna and the second antenna; wherein the second antenna is spaced apart from the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is arranged between the first antenna and the second antenna, and is spaced apart from at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of corresponding feeding signals.

[0094] For the related descriptions of the first antenna, the second antenna and the third antenna, please refer to the related introduction in the above embodiments, which will not be repeated here.

[0095] Optionally, the communication control device may include a processor in the communication device to execute, when the processor detects that the first antenna and the second antenna are operating in the first frequency band, it controls the on-off state of the tuning switch inside the second feed source or the tuning circuit, thereby controlling the second feed source or the tuning circuit to operate at the target tuning parameters, so as to adjust the third antenna to operate in the second frequency band, thereby achieving decoupling of the first antenna and the second antenna.

[0096] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the communication control method in the above embodiment are implemented.

[0097] The present application also provides a computer program product, including a computer program, which implements the steps of the communication control method in the above embodiment when executed by a processor.

[0098] Any reference to memory, storage, database or other media used in this application may include non-volatile and / or volatile memory. Suitable non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RM), which is used as an external cache memory. As an illustration and not limitation, RM is available in various forms, such as static RM (SRM), dynamic RM (DRM), synchronous DRM (SDRM), double data rate SDRM (DDR SDRM), enhanced SDRM (ESDRM), synchronous link (Synchlink) DRM (SLDRM), memory bus (Rmbus) direct RM (RDRM), direct memory bus dynamic RM (DRDRM) and memory bus dynamic RM (RDRM).

[0099] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An antenna module, It is characterized in that include: First antenna; A second antenna is spaced apart from the first antenna, and the first antenna and the second antenna can operate in the same frequency band; a third antenna, disposed between the first antenna and the second antenna, and spaced apart from at least one of the first antenna and the second antenna; Among them, the first antenna, the second antenna and the third antenna respectively work under the excitation of the corresponding feeding signal; when the first antenna and the second antenna work in the first frequency band, the third antenna works in any second frequency band except the first frequency band under the excitation of the feeding signal to decouple the first antenna and the second antenna.

2. The antenna module according to claim 1, It is characterized in that The first antenna includes a first radiator and a first feed source, the second antenna includes a second radiator and a second feed source, and the third antenna includes a third radiator and a third feed source; the third radiator is spaced apart from at least one of the first radiator and the second radiator; The feeding point of the first radiator is connected to the first feed source, the grounding point of the first radiator is connected to the ground, the feeding point of the second radiator is connected to the second feed source, the grounding point of the second radiator is connected to the ground, the feeding point of the third radiator is connected to the third feed source, and the grounding point of the third radiator is connected to the ground; When the first feed source and the second feed source respectively excite the first radiator and the second radiator to operate in the first frequency band, the third feed source excites the third radiator to operate in the second frequency band.

3. The antenna module according to claim 2, It is characterized in that The third antenna further comprises: A tuning circuit is connected to the third feed source and the feeding point of the third radiator respectively, and is used to adjust the resonant frequency of the third radiator so that the third radiator operates in a target frequency band, and the target includes the second frequency band.

4. The antenna module according to claim 3, It is characterized in that The first radiator has a first free end, the third radiator has a third free end, the first free end and the third free end are spaced apart and form a coupling gap; the tuning circuit is also used to tune the resonant frequency of the first radiator in the first frequency band.

5. The antenna module according to claim 2, It is characterized in that The first radiator has a first free end, the second radiator has a second free end, and the third radiator has a third free end; Among them, the second radiator is adjacent to the third radiator to form a radiating branch, the end of the radiating branch close to the first radiator is the third free end of the third radiator, and the third free end is spaced apart from the first free end; the end of the radiating branch facing away from the first radiator is the second free end of the second radiator.

6. The antenna module according to claim 2, It is characterized in that The first radiator has a first free end, the second radiator has a second free end, and the third radiator has a third free end; Among them, the third radiator is spaced apart from the first radiator and the second radiator respectively, the end of the first radiator close to the third radiator is the first free end, the end of the second radiator close to the third radiator is the second free end, and the end of the third radiator close to the first radiator is the third free end.

7. The antenna module according to any one of claims 2 to 6, It is characterized in that The antenna module also includes: An isolation circuit, one end of which is connected to the grounding point of at least one of the first radiator, the second radiator and the third radiator, and the other end of which is grounded, and the isolation circuit is used to isolate the electrically connected radiator from the ground.

8. The antenna module according to any one of claims 2 to 6, It is characterized in that The first frequency band is in the range of 1.71 to 2.69 GHz, and the second frequency band includes any one of the GPS L5 band, N78 band, N79 band, and WIFI / BT 5G band; or the second frequency band is in the range of 1.71 to 2.69 GHz, and the first frequency band includes any one of the GPS L5 band, N78 band, N79 band, and WIFI / BT 5G band.

9. A communication device, It is characterized in that Comprising the antenna module as described in any one of claims 1-8.

10. The communication device according to claim 9, It is characterized in that The communication device also includes a plurality of frames connected end to end in sequence; at least two of the first antenna, the second antenna, and the third antenna are arranged on the same frame.

11. A communication control method, It is characterized in that include: When the first antenna and the second antenna operate in a first frequency band, controlling the third antenna to operate in any second frequency band except the first frequency band, so that the third antenna decouples the first antenna and the second antenna; Among them, the second antenna is arranged at an interval with the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is arranged between the first antenna and the second antenna, and is arranged at an interval with at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of the corresponding feeding signal.

12. A communication control device, It is characterized in that Used to control the third antenna to operate in any second frequency band except the first frequency band when the first antenna and the second antenna operate in the first frequency band, so that the third antenna decouples the first antenna and the second antenna; Among them, the second antenna is arranged at an interval with the first antenna, and the first antenna and the second antenna can operate in the same frequency band; the third antenna is arranged between the first antenna and the second antenna, and is arranged at an interval with at least one of the first antenna and the second antenna, and the first antenna, the second antenna and the third antenna respectively operate under the excitation of the corresponding feeding signal.

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