Antenna module and electronic equipment

Abstract

The utility model provides an antenna module and electronic equipment, and relates to the technical field of electronic equipment. The antenna module comprises a first antenna and a second antenna, the second antenna is connected with the first antenna through the change-over switch; the main radio frequency path is connected with the change-over switch through a first path and a second path; if the first antenna is used as a main radio frequency antenna, the first antenna is connected with the main radio frequency path through the first path; and if the second antenna is used as the main radio frequency antenna, the second antenna is connected with the main radio frequency path through the first path or the second path.

Description

Technical Field

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

[0002] When TAS (Transmit Antenna Switching) or ASDIV (Antenna Switching Diversity) is enabled, the main RF transmit antenna will switch, generally from the default position on the chin of the phone to the top of the phone. At this time, the isolation between the main RF transmit antenna and the GPS, WIFI and other antennas distributed on the head of the phone is lower, and the noise and harmonic interference generated by the main RF transmit antenna will be greater. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide an antenna module and an electronic device, including the following technical solutions:

[0004] A first aspect of the present application provides an antenna module, the antenna module comprising: a first antenna;

[0005] a second antenna connected to the first antenna via a switch;

[0006] a main radio frequency path connected to the switch via a first path and a second path;

[0007] If the first antenna serves as the main radio frequency antenna, the first antenna is connected to the main radio frequency path through the first path;

[0008] If the second antenna serves as a main radio frequency antenna, the second antenna is connected to the main radio frequency path through the first path or the second path.

[0009] In some modified implementations of the first aspect of the present application, the first antenna is connected to the first path and the main RF path through the switch, so that the first antenna serves as the main RF antenna; or

[0010] The first antenna connects the second antenna to the first path or the second path and the main radio frequency path through the switching switch, so that the second antenna serves as the main radio frequency antenna.

[0011] In some modified implementations of the first aspect of the present application, the first path and the second path are different, the second path is used to suppress noise, and / or the second path is used to suppress harmonics;

[0012] If there is no coexistence interference with the second antenna, the second antenna is connected to the main radio frequency path through the first path;

[0013] If coexistence interference exists with the second antenna, the second antenna is connected to the main radio frequency path through a second path.

[0014] In some modified implementations of the first aspect of the present application, the second path is provided with M interference suppression modules, where M is a positive integer greater than 1.

[0015] In some modified implementations of the first aspect of the present application, the first path is provided with N interference suppression modules, where N is a positive integer greater than 1, and M is greater than N.

[0016] In some modified implementations of the first aspect of the present application, the interference suppression module includes at least one of the following combinations:

[0017] Attenuation matching circuit, low-pass filter, high-pass filter.

[0018] In some modified implementations of the first aspect of the present application, the first antenna and the second antenna are both connected to the first path and the second path through a first switch.

[0019] In some modified implementations of the first aspect of the present application, the first path and the second path are connected to the main RF path via a second switch;

[0020] The first path and the second path are connected to the first switch via a third switch.

[0021] A second aspect of the present application provides an electronic device, the electronic device comprising: a body;

[0022] a first antenna, disposed on a first side of the body,

[0023] The second antenna is arranged on the second side of the body and is connected to the first antenna through a switch.

[0024] A main radio frequency path is connected to the switch via a first path and a second path;

[0025] If the first antenna serves as the main radio frequency antenna, the first antenna is connected to the main radio frequency path through a first path;

[0026] If the second antenna serves as a main radio frequency antenna, the second antenna is connected to the main radio frequency path through the first path or the second path.

[0027] In some modified implementations of the second aspect of the present application, the following is also included:

[0028] a third antenna, disposed on the second side of the body;

[0029] If there is no coexistence interference between the second antenna and the third antenna, the second antenna is connected to the main radio frequency path through the first path;

[0030] If coexistence interference exists with the second antenna, the second antenna is connected to the main radio frequency path through the second path;

[0031] A processing module is configured to control the switch based on the coexistence interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0033] Figure 1 Schematically shows a connection state diagram of the antenna module provided by the present application;

[0034] Figure 2 Schematically shows a connection state diagram of another antenna module provided by the present application;

[0035] Figure 3 Schematically shows another connection state diagram of the antenna module provided by the present application;

[0036] Figure 4 Schematically shows another connection state diagram of the antenna module provided by the present application;

[0037] Figure 5 The structure diagram of the electronic device provided by the present application is schematically shown;

[0038] Description of Figure Numbers:

[0039] 1. First antenna; 2. Second antenna; 31. First switching switch; 32. Second switching switch; 33. Third switching switch; 4. Main RF path; 5. First path; 6. Second path; 7. Interference suppression module; 8. Electronic device; 9. Third antenna. DETAILED DESCRIPTION

[0040] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0041] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this application belongs.

[0042] Example 1

[0043] Reference Attachment Figure 1 -Attached Figure 4 , embodiment 1 of the present application proposes an antenna module, which includes: a first antenna 1; a second antenna 2, connected to the first antenna 1 through a switching switch; and a main RF path 4, connected to the switching switch through a first path 5 and a second path 6; if the first antenna 1 serves as the main RF antenna, the first antenna 1 is connected to the main RF path 4 through the first path 5; if the second antenna 2 serves as the main RF antenna, the second antenna 2 is connected to the main RF path 4 through the first path 5 or the second path 6.

[0044] Specifically, the antenna module provided in this embodiment can be applied to, but is not limited to, electronic devices 8 such as mobile phones and tablets. The antenna module can realize functions such as signal transmission and reception, wireless communication, and data transmission of the electronic device 8. The antenna module includes a first antenna 1 and a second antenna 2 arranged at different positions of the electronic device 8. The first antenna 1 and the second antenna 2 are connected by a switching switch. The antenna module also includes a main RF path 4. The main RF path 4 is mainly responsible for receiving and transmitting signals of the electronic device 8. It is connected to the switching switch through a first path 5 and a second path 6. Here, the first path 5 and the second path 6 can be microstrip lines or other types of transmission lines, which can respectively realize RF signal transmission between the main RF path and the switching switch. The switching switch can switch between the antenna and the path. When the first antenna 1 serves as the main RF antenna of the electronic device 8, the switching switch can connect the first antenna 1 to the first path 5 and the main RF path 4, thereby receiving and transmitting signals through the first antenna 1; or when the second antenna 2 serves as the main RF antenna, the switching switch can connect the second antenna 2 to the first path 5 or the second path 6 and the main RF path 4, thereby receiving and transmitting signals through the second antenna 2.

[0045] In order to ensure the stability of signal reception and transmission of the antenna module, there is a difference between the first path 5 and the second path 6, so that the first antenna 1 or the second antenna 2 can be used as the main RF antenna and can transmit signals stably with low interference when connected to the first path 5 or the second path 6; the following description takes the electronic device 8 as a mobile phone, the first antenna 1 as the default main RF antenna Ant0 of the electronic device 8, and the second antenna 2 as the antenna Ant1 of the electronic device 8 as an example, the main RF antenna Ant0 is located at the bottom chin of the mobile phone, and works with other antennas to ensure that the electronic device 8 can obtain a stable signal connection in various network environments, and the antenna Ant1 is located at the top of the mobile phone; the mobile phone has antenna switching functions, TAS (Transmit Antenna Switching) and ASDIV (Antenna Switching Diversity (antenna switching diversity) technologies all involve switching the main RF antenna. That is, when the mobile phone detects that the main RF antenna is blocked or weakened, it automatically switches to another antenna with a stronger signal. For example, when the user holds the bottom of the phone, the main RF antenna Ant0 may be blocked, resulting in signal weakening. At this time, to ensure that the call is not interrupted, the phone automatically switches to the antenna Ant1 located at the top of the phone as the main RF antenna. However, since the layout of antenna Ant1 is close to the GPS and WIFI antennas located at the top of the phone, the isolation between the main RF antenna and the GPS and WIFI antennas may be low, resulting in coexistence interference, which may cause the main RF antenna to generate noise and harmonic interference. In this case, the difference between the first path 5 and the second path 6 can be set. The second path 6 can suppress noise and harmonic interference. When coexistence interference exists, the second path 6 of the second antenna 2 is connected to the main RF path 4, thereby suppressing the interference signal, ensuring that the useful signal is not affected, and ensuring antenna performance. However, this is not limited to this. Other settings can also be used to achieve antenna module stability and ensure antenna performance.

[0046] For further information, see the attached Figure 1 -Attached Figure 4 In a specific implementation, the first antenna 1 is connected to the first path 5 and the main RF path 4 through the switching switch, so that the first antenna 1 serves as the main RF antenna; or the first antenna 1 connects the second antenna 2 to the first path 5 or the second path 6 and the main RF path 4 through the switching switch, so that the second antenna 2 serves as the main RF antenna.

[0047] Specifically, in the technical solution adopted by this application, the first antenna 1 is used as the default main RF antenna Ant0. When antenna switching does not occur, as shown in the attached Figure 1 and attached Figure 2As shown, the first antenna 1 is connected to the first path 5 through the switching switch, so that the first antenna 1 can be connected to the first path 5 and the main RF path 4, and the first antenna 1 is used as the main RF antenna; or when antenna switching occurs, the first antenna 1 is switched through the switching switch to connect the second antenna 2 to the first path 5 or the second path 6, so that the second antenna 2 can be connected to the main RF path 4 through the first path 5 or the second path 6, and the second antenna 2 is used as the main RF antenna; wherein the switching action of the switching switch can be controlled by the processing module of the electronic device 8, and it can further control whether the second antenna 2 is connected to the first path 5 or the second path 6 according to the specific situation of the second antenna 2.

[0048] For further information, see the attached Figure 1 In a specific implementation, the first path 5 and the second path 6 are different, the second path 6 is used to suppress noise, and / or the second path 6 is used to suppress harmonics; if there is no coexistence interference with the second antenna 2, the second antenna 2 is connected to the main RF path 4 through the first path 5; if there is coexistence interference with the second antenna 2, the second antenna 2 is connected to the main RF path 4 through the second path 6.

[0049] Specifically, the first antenna 1 can be the default main RF antenna Ant0 of the electronic device 8, and the second antenna 2 can be the antenna Ant1 of the electronic device 8. The first antenna 1 and the second antenna 2 are arranged at different positions of the electronic device 8, and the arrangement position of the antenna Ant1 is close to the GPS and WIFI antennas of the electronic device 8. In order to avoid the coexistence interference between the second antenna 2 and the GPS, WIFI antennas, etc. when the second antenna 2 is used as the main RF antenna, causing the main RF antenna to generate noise and harmonic interference, in the technical solution adopted in this application, the second path 6 is set to be different from the first path 5, specifically, the second path 6 can be used to suppress noise and / or can suppress harmonics. When there is no coexistence interference between the second antenna 2 and the surrounding components, that is, when the demand for suppressing noise and / or harmonics is small, as shown in the attached Figure 4 As shown, the second antenna 2 can be connected to the main RF path 4 through the first path 5 by switching the switch; and when the second antenna 2 and the surrounding components coexist and interfere with each other, and the main RF antenna generates noise and harmonic interference, it is necessary to suppress the noise and / or harmonics through the second path 6. At this time, as shown in the attached figure Figure 3 As shown, the second antenna 2 can be connected to the main RF path 4 through the second path 6 by switching the switch, so that interference signals such as noise and / or harmonics can be suppressed through the second path 6 to ensure that the useful signal is not affected, thereby ensuring the performance of the antenna module. In addition, when the coexistence interference between the second antenna 2 and the surrounding components disappears, the switch can be switched again. Refer to the attached figure again. Figure 4, so that the second antenna 2 is connected to the main radio frequency path 4 through the first path 5, to provide users with a stable communication experience.

[0050] For further information, see the attached Figure 1 -Attached Figure 4 In a specific implementation, the second path 6 is provided with M interference suppression modules 7, where M is a positive integer greater than 1.

[0051] Specifically, in order to achieve stability in antenna performance and reduce interference, in the technical solution adopted in this application, M interference suppression modules 7 can be set in the second path 6, and the M interference suppression modules 7 are set in series, where M is a positive integer greater than 1. The interference suppression module 7 can be used to suppress noise and / or harmonics, thereby attenuating the interference signal. Only when the second antenna 2 serves as the main RF antenna and there is a coexistence interference problem, the signal is allowed to go through the second path 6 by switching the switch.

[0052] For further information, see the attached Figure 1 In a specific implementation, the first path 5 is provided with N interference suppression modules 7 , where N is a positive integer greater than 1, and M is greater than N.

[0053] Specifically, the anti-interference performance of the second path 6 is better than that of the first path 5. Figure 2 As shown, the first path 5 may not be provided with the interference suppression module 7, or in order to further achieve the stability of the antenna performance and reduce interference, in the technical solution adopted in the present application, the first path 5 may be provided with N interference suppression modules 7, and the N interference suppression modules 7 are arranged in series, and M is greater than N. For example: the number of M can be 1, and the number of N can be 3, but is not limited thereto.

[0054] Among them, refer to the attached Figure 1 In a specific implementation, the interference suppression module 7 includes at least one of the following combinations: an attenuation matching circuit, a low-pass filter, and a high-pass filter, wherein the attenuation matching circuit mainly works together through impedance matching, signal attenuation, filtering and decoupling, shielding and grounding to suppress interference signals in the circuit; the low-pass filter mainly filters out high-frequency interference components in the signal through its frequency selection characteristics, thereby improving the quality and reliability of the signal; the high-frequency filter can mainly remove low-frequency interference components in the signal, allowing high-frequency signals to pass through, thereby effectively suppressing low-frequency interference; wherein, when two or more interference suppression modules 7 are set, the interference suppression module 7 can select one of the attenuation matching circuit, the low-pass filter, and the high-pass filter, or can also select a combination of the attenuation matching circuit and the high-pass filter or the low-pass filter or other types of filters to meet specific application requirements and ensure the quality and efficiency of the signal in transmission.

[0055] For further information, see the attached Figure 1-Attached Figure 4 In a specific implementation, the first antenna 1 and the second antenna 2 are both connected to the first path 5 and the second path 6 through a first switching switch 31.

[0056] Specifically, in order to realize the switching effect of the switching switch on the first antenna 1 and the second antenna 2, in the technical solution adopted in the present application, the switching switch may include a first switching switch 31, which may be specifically a DPDT (double-pole double-throw) switch, which can realize dual-way dual switching; specifically, the first antenna 1 and the second antenna 2 can be respectively connected to the two connection ends of one path of the first switching switch 31, and the first path 5 and the second path 6 can be connected to a path on the side close to the first switching switch 31 and connected to a connection end of another path of the first switching switch 31. The other connection end of the path can be used to connect other radio frequency paths (not shown in the figure), thereby ensuring that under the switching of the first switching switch 31, one of the first antenna 1 and the second antenna 2 is connected to the main radio frequency path 4 through the first path 5 or the second path 6, and the other is connected to other radio frequency paths; as shown in the attached figure Figure 1 As shown, the first antenna 1 is connected to the first path 5 and the main RF path 4 through the first switch 31, and the second antenna 2 is connected to other RF paths through the first switch 31. After the first switch 31 is switched, refer to the attached Figure 3 and attached Figure 4 As shown, the second antenna 2 is connected to the first path 5 or the second path 6 and to the main RF path 4 through the first switching switch 31, while the first antenna 1 is connected to other RF paths; wherein, the switching method of the first path 5 and the second path 6 between the main RF path 4 and the first switching switch 31 is not specifically limited here.

[0057] For further information, see the attached Figure 1 -Attached Figure 4 In a specific implementation, the first path 5 and the second path 6 are connected to the main RF path 4 through the second switching switch 32; the first path 5 and the second path 6 are connected to the first switching switch 31 through the third switching switch 33.

[0058] Specifically, in order to realize the connection of the first path 5 or the second path 6 with the main RF path 4 and the first switching switch 31, that is, to realize the switching of the two paths between the main RF path 4 and the first switching switch 31, in the technical solution adopted in the present application, the first path 5 and the second path 6 can be connected to the main RF path 4 through the second switching switch 32, and the first path 5 and the second path 6 can be connected to one connection end of the first switching switch 31 through the third switching switch 33. The second switching switch 32 and the third switching switch 33 can be SPDT (single pole double throw) switches respectively. The single end of the second switching switch 32 is used to connect to the main RF path 4, and the double ends are respectively connected to the first path 5 and the second path 6. The single end of the third switching switch 33 is used to connect to one connection end of the first switching switch 31, and the double ends are respectively connected to the first path 5 and the second path 6, so as to realize the switching of the first path 5 and the second path 6 between the main RF path 4 and the first switching switch 31.

[0059] Example 2

[0060] Reference Attachment Figure 5 , embodiment 1 of the present application proposes an electronic device 8, which includes: a main body; a first antenna 1, arranged on a first side of the main body, a second antenna 2, arranged on a second side of the main body, connected to the first antenna 1 through a switching switch, and a main RF path 4, connected to the switching switch through a first path 5 and a second path 6; if the first antenna 1 serves as the main RF antenna, the first antenna 1 is connected to the main RF path 4 through the first path 5; if the second antenna 2 serves as the main RF antenna, the second antenna 2 is connected to the main RF path 4 through the first path 5 or the second path 6.

[0061] Specifically, the electronic device 8 provided in this embodiment can be, but is not limited to, a mobile phone, a tablet computer, etc., which includes: a body and an antenna module. The antenna module can realize the functions of signal reception and transmission, wireless communication, data transmission, etc. of the electronic device 8. The antenna module includes a first antenna 1 and a second antenna 2 and a main radio frequency path 4 arranged at different positions of the electronic device 8. The first antenna 1 and the second antenna 2 are connected by a switching switch. The main radio frequency path 4 is connected to the switching switch through the first path 5 and the second path 6, and the switching switch can play a switching role between the antenna and the path. When the first antenna 1 is used as the main radio frequency antenna of the electronic device 8, as shown in the attached figure, Figure 1As shown, the first antenna 1 can be connected to the first path 5 and the main RF path 4 by switching the switch, so that the signal is received and transmitted through the first antenna 1; or when the second antenna 2 is used as the main RF antenna, the second antenna 2 can be connected to the first path 5 or the second path 6 and the main RF path 4 by switching the switch, so that the signal is received and transmitted through the second antenna 2. By switching, the interference signal can be suppressed when the second antenna 2 is used as the main RF antenna, ensuring that the useful signal is not affected, and ensuring the performance of the antenna module and the wireless communication function of the electronic device 8.

[0062] For further information, see the attached Figure 1 In a specific implementation, it also includes: a third antenna 9, which is arranged on the second side of the main body; if there is no coexistence interference between the second antenna 2 and the third antenna 9, the second antenna 2 is connected to the main RF path 4 through the first path 5; if there is coexistence interference between the second antenna 2, the second antenna 2 is connected to the main RF path 4 through the second path 6; and a processing module for controlling the switching switch based on the coexistence interference.

[0063] Specifically, in order to avoid coexistence interference between the second antenna 2 and the third antenna 9 adjacent to it when the second antenna 2 is used as the main RF antenna, in the technical solution adopted by the present application, the processing module of the electronic device 8 can detect the coexistence interference between the second antenna 2 and the third antenna 9, and control the switching switch based on the coexistence interference between the two. Specifically, if there is no coexistence interference between the second antenna 2 and the third antenna 9, there is no need to perform noise and / or harmonic suppression, as shown in the attached figure. Figure 3 As shown, the processing module controls the switch to connect the second antenna 2 to the first path 5, and the second antenna 2 can be connected to the main RF path 4 through the first path 5; if there is coexistence interference with the second antenna 2, as shown in the attached Figure 2 As shown, the processing module controls the switching switch to switch, connecting the second antenna 2 to the second path 6, so that the second antenna 2 is connected to the main RF path 4 through the second path 6, so as to suppress noise and / or harmonics through the second path 6 to ensure that the useful signal is not affected, thereby ensuring the performance of the antenna module.

[0064] It should be noted that, in the description of this specification, the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application; the terms "connect", "install", "fixed", etc. should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0065] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An antenna module, characterized in that: include: First antenna; a second antenna connected to the first antenna via a switch; a main radio frequency path connected to the switch via a first path and a second path; If the first antenna serves as the main radio frequency antenna, the first antenna is connected to the main radio frequency path through the first path; If the second antenna serves as a main radio frequency antenna, the second antenna is connected to the main radio frequency path through the first path or the second path.

2. The antenna module according to claim 1, wherein: The first antenna is connected to the first path and the main RF path through the switch, so that the first antenna serves as the main RF antenna; or The first antenna connects the second antenna to the first path or the second path and the main radio frequency path through the switching switch, so that the second antenna serves as the main radio frequency antenna.

3. The antenna module according to claim 2, wherein: The first path and the second path are different, the second path is used to suppress noise, and / or the second path is used to suppress harmonics; If there is no coexistence interference with the second antenna, the second antenna is connected to the main radio frequency path through the first path; If coexistence interference exists with the second antenna, the second antenna is connected to the main radio frequency path through a second path.

4. The antenna module according to claim 3, wherein: The second path is provided with M interference suppression modules, where M is a positive integer greater than 1.

5. The antenna module according to claim 4, wherein: The first path is provided with N interference suppression modules, where N is a positive integer greater than 1, and M is greater than N.

6. The antenna module according to claim 4 or 5, characterized in that: The interference suppression module includes at least one of the following combinations: Attenuation matching circuit, low-pass filter, high-pass filter.

7. The antenna module according to claim 1, wherein: The first antenna and the second antenna are both connected to the first path and the second path through a first switch.

8. The antenna module according to claim 7, wherein: The first path and the second path are connected to the main RF path via a second switch; The first path and the second path are connected to the first switch via a third switch.

9. An electronic device, characterized in that: include: ontology; a first antenna, disposed on a first side of the body, The second antenna is arranged on the second side of the body and is connected to the first antenna through a switch. A main radio frequency path is connected to the switch via a first path and a second path; If the first antenna serves as a main radio frequency antenna, the first antenna is connected to the main radio frequency path through the first path; If the second antenna serves as a main radio frequency antenna, the second antenna is connected to the main radio frequency path through the first path or the second path.

10. The electronic device according to claim 9, characterized in that Also includes: a third antenna, disposed on the second side of the body; If there is no coexistence interference between the second antenna and the third antenna, the second antenna is connected to the main radio frequency path through the first path; If coexistence interference exists with the second antenna, the second antenna is connected to the main radio frequency path through the second path; A processing module is configured to control the switch based on the coexistence interference.

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