CN118157707A - Radio frequency assembly and electronic equipment - Google Patents

Abstract

The present application relates to a radio frequency component and an electronic device. The radio frequency component includes: a wireless fidelity module and at least one radio frequency front-end module, wherein the wireless fidelity module includes at least one first radio frequency port for transmitting a first wireless fidelity signal, and at least one second radio frequency port for transmitting a second wireless fidelity signal; each radio frequency front-end module is used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals to two correspondingly connected antennas, respectively, and can reduce SAR and Peak EIRP on the premise of ensuring WiFi wireless communication performance, so as to meet the requirements of relevant safety regulations.

Description

RF components and electronic devices

Technical Field

The present application relates to the field of antenna technology, and in particular to a radio frequency component and an electronic device.

Background technique

With the development of technology, electronic devices with communication functions (such as mobile phones, tablets, etc.) are becoming more and more popular and more powerful. But at the same time, the safety and compliance requirements for electronic devices are also more stringent. For example, Specific absorption rate (SAR) and Equivalent Isotropically Radiated Power (EIRP) are two common safety regulatory certification items for Wireless Fidelity (WiFi) communications.

Therefore, how to ensure the performance of WiFi wireless communication while meeting relevant safety regulations has become an urgent problem to be solved.

Summary of the invention

The embodiments of the present application provide a radio frequency component and an electronic device, which can reduce SAR and Peak EIRP while ensuring WiFi wireless communication performance, so as to meet the requirements of relevant safety regulations.

In a first aspect, an embodiment of the present application provides a radio frequency component, including:

A Wi-Fi module, comprising at least one first radio frequency port for transmitting a first Wi-Fi signal, and at least one second radio frequency port for transmitting a second Wi-Fi signal;

At least one RF front-end module, the two first ends of each RF front-end module are respectively connected to the first RF port and the second RF port, and the two second ends of each RF front-end module are respectively connected to the two antennas, wherein:

The RF front-end module is used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals to the corresponding two connected antennas respectively, each signal includes the first wireless fidelity signal and the second wireless fidelity signal, and the pre-processing includes combining and power dividing the received first wireless fidelity signal and the second wireless fidelity signal.

In a second aspect, an embodiment of the present application provides an electronic device, comprising: the aforementioned radio frequency component and at least two antennas, wherein:

The two second ends of each of the RF front-end modules are connected to the two antennas respectively.

The above-mentioned radio frequency component and electronic device, the radio frequency component includes a wireless fidelity module and at least one radio frequency front-end module, wherein the radio frequency front-end module can combine and power-divide the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals, wherein, after the power division processing in the pre-processing, the power of each wireless fidelity signal in the dual-band signal can be reduced, and then the transmission power of each antenna can be reduced, so that the transmission power distribution is more uniform, thereby reducing SAR and Peak EIRP to meet the requirements of safety-related regulations. In addition, the radio frequency front-end module can output two dual-band signals to the two correspondingly connected antennas, even if one of the antennas is blocked, it can ensure that one dual-band signal can be normally transmitted to the unblocked antenna, which can reduce the probability of significantly reducing the wireless performance due to blocking all antennas when the electronic device is held by the user, and can improve the communication performance of wireless communication.

BRIEF DESCRIPTION OF THE DRAWINGS

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 any creative work.

FIG1 is a diagram of an application scenario of an electronic device implementing WiFi wireless communication in one embodiment;

2-9 are schematic diagrams of the structures of radio frequency components in different embodiments;

FIG10 is a schematic diagram of the structure of an electronic device in one embodiment;

FIG11 is a schematic diagram of the structure of an electronic device in another embodiment;

FIG12 is a schematic diagram of a two-dimensional radiation pattern of an electronic device in the related art;

FIG13 is a schematic diagram of a two-dimensional radiation pattern of an electronic device in one embodiment;

FIG14 is an antenna distribution diagram of four antennas in one embodiment;

FIG15 is an antenna distribution diagram of four antennas in another embodiment;

FIG16 is a schematic diagram of a structure in which the antennas of the four antennas shown in FIG15 are distributed in a customer front-end device;

FIG17 is an antenna distribution diagram of four antennas in yet another embodiment;

FIG. 18 is a schematic diagram of a structure in which the four antennas shown in FIG. 17 are distributed in a router.

Component number description:

Electronic device-10; RF component-100; Wireless Fidelity module-110; RF front-end module-120; first RF front-end module-120-1; second RF front-end module-120-2; first power division unit-121; second power division unit-122; first combining unit-123; second combining unit-124; third combining unit-125; third power division unit-126; first antenna-ANT1; second antenna-ANT2; third antenna-ANT3; fourth antenna-ANT4; communication device-20.

Detailed ways

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

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

The radio frequency components involved in the embodiments of the present application can be applied to electronic devices with wireless communication functions. The electronic device can specifically be user equipment (UE), access terminal, terminal unit, terminal station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, terminal agent or terminal device, etc. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a mobile phone, a computer, a laptop computer, a handheld computing device (such as a tablet), and other devices for communicating on a wireless system.

As shown in FIG1 , the electronic device 10 in the embodiment of the present application can support cellular, WiFi wireless communication, short-range wireless communication, etc. For the sake of convenience, the electronic device 10 supports WiFi wireless communication as an example. Generally speaking, a complete WiFi wireless communication is duplex communication. It can be understood that the electronic device 10 can receive the WiFi signal sent by the communication device 20, and at the same time, the communication device 20 is also required to receive the WiFi signal sent by the electronic device 10, so that a complete WiFi wireless communication can be achieved. For the sake of convenience, the communication device 20 is a router and the electronic device 10 is a mobile phone as an example. Among them, from the user's perspective, the path between the router and the mobile phone is called the downlink Down Link, and its coverage is called the router coverage, as shown in the solid line area in FIG1. The path between routers is called the uplink Up Link, and its coverage is called the mobile phone Coverage, as shown in the dotted line area in FIG1.

Table 1 shows the regulatory standards for SAR certification in various countries and regions. There are two main regulatory requirements, one is the standard 1.6W/Kg (1g) adopted by the Federal Communications Commission (FCC) of the United States, and the other is the standard 2.0W/Kg (10g) adopted by the European CE.

Table 1 SAR regulatory requirements in major countries and regions

Table 2 shows the regulatory standards for EIRP set by major countries and regions around the world, of which the most stringent is the European CE standard. WiFi signals can include WiFi-2.4GHz signals and WiFi-5GHz signals, of which WiFi-2.4GHz and WiFi-5GHz are both industrial open frequency bands. Therefore, it is necessary to limit the maximum transmit power (Peak-EIRP) of the device to prevent mutual interference between devices.

Table 2 EIRP regulatory requirements in major countries and regions

Typically, due to regulatory requirements such as specific absorption rate and equivalent isotropic radiated power, the transmit power of a mobile phone is limited, resulting in an asymmetry between the uplink and downlink of the mobile phone. As shown in Figure 1, the uplink of the mobile phone is limited.

In addition to the impact of regulations such as SAR and EIRP, another factor that limits the transceiver performance of the electronic device 10 is that the antenna of the electronic device 10 is blocked, such as when held by the head or hand, which leads to deterioration of the antenna performance. For example, if the antenna of the electronic device 10 is arranged on the frame, different users have different holding postures. If the antenna is blocked by holding, it may cause serious deterioration of the antenna performance and eventually fail the WiFi wireless communication. After an antenna is held by the hand, the antenna performance may drop by 10 to 15 dB compared to the free space performance. At this time, if it is in a weak signal, it is likely to cause communication failure, seriously affecting the user experience.

In view of the above technical problems, the embodiments of the present application provide a radio frequency component and an electronic device that can support WiFi wireless communication. The EIRP and SAR can be reduced without backing off the input power to meet the corresponding regulatory requirements. At the same time, the situation in which the antennas in the electronic device are simultaneously held frozen can be avoided, thereby improving the uplink communication performance of the radio frequency component and the electronic device.

The present application provides a radio frequency component. As shown in Figures 2 and 3, the radio frequency component 100 in one embodiment of the present application includes: a wireless fidelity module 110 and at least one radio frequency front-end module 120. Among them, the wireless fidelity module 110 includes at least one first radio frequency port and at least one second radio frequency port, wherein the number of the first radio frequency port and the second radio frequency port may be the same or different. For ease of explanation, in the embodiment of the present application, the number of the first radio frequency port and the second radio frequency port is equal (or the first radio frequency port and the second radio frequency port are arranged in pairs) as an example for explanation. Among them, the first radio frequency port is used to transmit a first wireless fidelity signal, and the second radio frequency port is used to transmit a second wireless fidelity signal. The frequency bands of the first wireless fidelity signal and the second wireless fidelity signal are different. For example, the first wireless fidelity signal can be a Wi-Fi 2.4GHz signal, and the second wireless fidelity signal can be a Wi-Fi 5GHz signal, or the first wireless fidelity signal can be a Wi-Fi 5GHz signal, and the second wireless fidelity signal can be a Wi-Fi 2.4GHz signal.

Optionally, the wireless fidelity module 110 may include at least one of a USB interface WiFi module, an Ethernet interface, a UART interface serial port WiFi module, an SDIO interface WiFi module, and a WCN module. Exemplarily, the wireless fidelity module 110 may use a wireless communication network (Wireless Communication Network, WCN) module, wherein the WCN module implements at least one wireless communication function, such as Wi-Fi wireless communication, Bluetooth wireless communication, FM (frequency modulation) wireless communication, global positioning system (Global Positioning System, GPS) wireless communication, etc.

In an embodiment of the present application, the number of RF front-end modules 120 is the same as the number of the first RF port or the second RF port. The two first ends of each RF front-end module 120 are respectively connected to a first RF port and a second RF port, and the two second ends of each RF front-end module 120 are used to be connected to two antennas respectively. It can be understood that the number of RF front-end modules 120, the number of first RF ports, and the number of second RF ports are respectively equal. The first RF port or the second RF port connected to the first end of each RF front-end module is different. The antennas connected to the second ends of the same RF front-end module are different, and the antennas connected to the second ends of different RF front-end modules are also different. It can be understood that the total number of antennas included in the electronic device 10 is twice the total number of RF front-end modules 120.

The RF front-end module 120 is used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals to the corresponding two connected antennas. It can be understood that each RF front-end module 120 can receive the first wireless fidelity signal from the first RF port and the second wireless fidelity signal from the second RF port, respectively, and pre-process the received first wireless fidelity signal and the second wireless fidelity signal. After pre-processing, the RF front-end module 120 can output two dual-band signals to the corresponding two connected antennas. Among them, each dual-band signal includes a first wireless fidelity signal and a second wireless fidelity signal. For example, the dual-band signal may include a WiFi 2.4G signal and a WiFi 5G signal. Among them, one dual-band signal is output to an antenna connected to a second end of the RF front-end module 120, and the other dual-band signal is output to another antenna connected to the other second end of the RF front-end module 120. Pre-processing includes combining and power dividing the received first wireless fidelity signal and the second wireless fidelity signal. In the embodiment of the present application, the order of combining processing and power splitting processing in preprocessing is not limited.

In the embodiment of the present application, the RF component 100 includes a wireless fidelity module 110 and at least one RF front-end module 120, wherein the RF front-end module 120 can combine and power-divide the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals. The RF front-end module 120 can power-divide the first wireless fidelity signal and the second wireless fidelity signal provided by the wireless fidelity module 110. The power-divide processing can reduce the power of each wireless fidelity signal in the dual-band signal, thereby reducing the transmission power of each antenna, so that the transmission power distribution is more uniform, thereby reducing SAR and Peak EIRP to meet the requirements of safety-related regulations. Exemplarily, after pre-processing, the power of the first wireless fidelity signal in the dual-band signal is lower than the power of the first wireless fidelity signal received by the RF front-end module 120 from the wireless fidelity module 110, and the power of the second wireless fidelity signal in the dual-band signal is lower than the power of the second wireless fidelity signal received by the RF front-end module 120 from the wireless fidelity module 110.

In addition, the RF front-end module 120 can output two dual-band signals to the two correspondingly connected antennas. Even if one of the antennas is blocked, it can ensure that one dual-band signal can be normally transmitted to the unblocked antenna, which can reduce the probability of blocking all antennas and significantly reducing the wireless performance when the electronic device 10 is held by the user, and can improve the communication performance of wireless communication. Exemplarily, the omnidirectional radiated power (Total Radiated Power, TRP) of the RF component 100 provided in the embodiment of the present application is the same as that of the RF component 100 in the related art. The Peak EIRP of the RF component 100 provided in the embodiment of the present application can be reduced by 3dB relative to the RF component 100 in the related art. In engineering practice, it can also benefit from a Peak EIRP reduction of about 1 to 2dB. In addition, through the RF component 100 provided in this embodiment, the maximum SAR of a single antenna can be reduced by 3dB.

In the embodiment of the present application, the RF component 100 may include one RF front-end module 120, or may include two RF front-end modules 120. The number of RF front-end modules 120 is different, and the working mode of the RF component 100 is also different. Among them, the working mode of the RF component 100 may include SISO (simple input simple output) mode and MIMO (Multiple Input Multiple Output) mode. Generally speaking, in the embodiment of the present application, if the RF component 100 includes one RF front-end module 120, the RF component 100 can support SISO mode. In SISO mode, the number of RF devices (for example, power splitter unit, combining unit) included in the RF component 100 can be reduced to reduce costs, and at the same time, the communication performance of the WiFi signal can be guaranteed. If the RF component 100 includes two RF front-end modules 120, the RF component 100 can support MIMO mode. In MIMO mode, without increasing the bandwidth and antenna transmission power, the spectrum utilization rate can be increased exponentially, the channel capacity can be increased exponentially, and the reliability of the channel can also be improved, and the bit error rate can be reduced.

The SISO mode and the MIMO mode of the RF component 100 are described in detail below in conjunction with the internal structure of the RF front-end module 120 .

In one embodiment, as shown in FIG. 4 and FIG. 5 , the preprocessing of the RF front-end module 120 may include first combining the first wireless fidelity signal and the second wireless fidelity signal, and then performing power division processing on the combined signal to output two dual-band signals. Optionally, the preprocessing of the RF front-end module 120 may include first performing power division processing on the first wireless fidelity signal and the second wireless fidelity signal, respectively, and then performing power division processing on the power division processed signals to output two dual-band signals. Specifically, the RF front-end module 120 includes a power division module 121, and a combining module 122 connected to the power division module 121, wherein one of the power division module 121 and the combining module 122 is respectively connected to the first RF port and the second RF port of the wireless fidelity module 110, and the other of the power division module 121 and the combining module 122 is respectively connected to two antennas.

Optionally, the input end of the power division module 121 is connected to the first RF port and the second RF port of the wireless fidelity module 110 respectively, the output end of the power division module 121 is connected to the input end of the combining module 122, and the output end of the combining module 122 is connected to two antennas respectively, please refer to Figure 4. In this way, the preprocessing of the RF front-end module 120 may include a processing method of first power division processing and then combining processing.

Optionally, as shown in FIG5 , the input end of the combiner module 122 is respectively connected to the first RF port and the second RF port of the wireless fidelity module 110, the output end of the combiner module 122 is connected to the input end of the power division module 121, and the output end of the power division module 121 is respectively connected to two antennas, please refer to FIG5 . In this way, the preprocessing of the RF front-end module 120 may include a processing method of first combining processing and then power division processing.

It should be noted that the connection mode of the combining module 122 and the power dividing module 121 configured in the RF front-end module 120 determines the sequence of combining processing and power dividing processing in the pre-processing.

The preprocessing of the RF front-end module 120 may include a processing method of first power division processing and then combining processing. As shown in Figure 6, in one embodiment, the RF component 100 includes an RF front-end module 120, and the RF component 100 can support SISO mode. The power division module in the RF front-end module 120 includes a first power division unit 1211 and a second power division unit 1212, and the reasonable module in the RF front-end module 120 includes a first combining unit 1221 and a second combining unit 1222. Among them, in the uplink, the first end of the first power division unit 1211 serves as a first end of the RF front-end module 120, and the first power division unit 1211 is used to power divide the received first wireless fidelity signal into two paths, and output them to the first combining unit 1221 and the second combining unit 1222 respectively. The first end of the second power splitter unit 1212 serves as the other first end of the RF front-end module 120. The second power splitter unit 1212 is used to split the received second wireless fidelity signal into two paths, and output them to the first combining unit 1221 and the second combining unit 1222 respectively. The first combining unit 1221 is used to combine the received first wireless fidelity signal and the second wireless fidelity signal, and output the first dual-band signal to the first antenna. The second combining unit 1222 is used to combine the received second wireless fidelity signal and the second wireless fidelity signal, and output the second dual-band signal to the second antenna.

Among them, a first transmission path for transmitting a first wireless fidelity signal can be formed between the first power division unit 1211 and the first RF port of the wireless fidelity module 110, and a second transmission path for transmitting a second wireless fidelity signal can be formed between the second power division unit 1212 and the second RF port of the wireless fidelity module 110. It can be understood that the number of the first transmission path and the second transmission path formed in the RF component 100 is 1 respectively, which can simultaneously support the transmission and reception processing of one first wireless fidelity signal and one second wireless fidelity signal, and can work in SISO mode.

Furthermore, the first end of the first power division unit 1211 is connected to the first RF port, and the two second ends of the first power division unit 1211 are respectively connected to a first end of the first combining unit 1221 and a first end of the second combining unit 1222; the first end of the second power division unit 1212 is connected to the second RF port, and the two second ends of the second power division unit 1212 are respectively connected to the other first end of the first combining unit 1221 and the other first end of the second combining unit 1222; the second end of the first combining unit 1221 is used to connect to the first antenna ANT1; the second end of the second combining unit 1222 is used to connect to the second antenna ANT2.

Optionally, the first power division unit 1211 and the second power division unit 1212 may be power dividers with equal power distribution or power dividers with unequal power distribution. The power divider may be a one-to-N power divider, where N is a positive integer greater than or equal to 2. The power divider may be a microstrip power divider, a cavity power divider, or the like.

Exemplarily, a power divider is taken as a one-to-N power divider for explanation. If the power of the received signal is divided into one and N, the maximum SAR of a single antenna will be reduced to 1/N of the original, and the SAR reduction effect will be more obvious. In the embodiment of the present application, a one-to-N power divider can be used. When the RF component 100 is applied to the electronic device 10, the RF component 100 provided in the embodiment of the present application can be used to effectively reduce the SAR to meet regulatory requirements, so that it is possible to avoid setting a SAR sensor chip in the electronic device 10 to achieve SAR reduction processing, and the use of SAR sensor chips can be reduced. While reducing costs, it is also possible to save the occupied space of the electronic device 10 and provide idle control for the setting of other devices.

The first combining unit 1221 and the second combining unit 1222 respectively include a multi-frequency combiner (eg, a dual-frequency combiner), which can realize combining and filtering processing of the first wireless fidelity signal and the second wireless fidelity signal.

It should be noted that in the embodiment of the present application, the specific types of the first power division unit 1211 , the second power division unit 1212 , the first combining unit 1221 , and the second combining unit 1222 are not limited.

For the sake of convenience, the transmission principle of the dual-band signal is explained by taking the first wireless fidelity signal as a WiFi 2.4G signal, the second wireless fidelity signal as a WiFi 5G signal, and the RF component 100 working in the SISO mode as an example.

The first RF port of the Wi-Fi module 110 can output a WiFi 2.4G signal to a first end of the RF front-end module 120, and the second RF port of the Wi-Fi module 110 can output a WiFi 5G signal to another first end of the RF front-end module 120. The first power division unit 1211 (for example, a 3dB power divider) serves as a first end of the RF front-end module 120, divides the received WiFi 2.4G signal into two, outputs a WiFi 2.4G-1 signal through a second end of the first power division unit 1211, and outputs a WiFi 2.4G-2 signal through another second end of the first power division unit 1211. Correspondingly, the second power division unit 1212 (for example, a 3dB power divider) serves as another first end of the RF front-end module 120, divides the received WiFi 5G signal into two, outputs a WiFi 5G-1 signal through a second end of the second power division unit 1212, and outputs a WiFi 5G-2 signal through another second end of the second power division unit 1212. The WiFi 2.4G-1 signal and the WiFi 5G-1 signal received by the first combining unit 1221 (e.g., a dual-band combiner) are combined into a first dual-band signal (e.g., a WiFi-2.4/5G-1 signal), and transmitted to the first antenna ANT1 to transmit the first dual-band signal. Correspondingly, the WiFi 2.4G-2 signal and the WiFi 5G-2 signal received by the second combining unit 1222 (e.g., a dual-band combiner) are combined into a first dual-band signal (e.g., a WiFi-2.4/5G-2 signal), and transmitted to the second antenna to transmit the second dual-band signal.

As shown in Figure 6, optionally, in one embodiment, the wireless fidelity module 110 includes two first RF ports and two second RF ports. The RF component 100 includes two RF front-end modules to support MIMO mode. Each RF front-end module 120 includes a first power division unit 1211, a second power division unit 1212, a first combining unit 1221 and a second combining unit 1222. The RF component 100 may include a first RF front-end module and a second RF front-end module. The two first ends of the first RF front-end module are respectively connected to a first RF port and a second RF port, and the two second ends of the first RF front-end module are respectively connected to the first antenna ANT1 and the second antenna ANT2, for pre-processing the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals respectively. Correspondingly, the two first ends of the second RF front-end module are respectively connected to another first RF port and another second RF port, and the two first ends of the second RF front-end module are respectively connected to the third antenna ANT3 and the fourth antenna ANT4, for preprocessing the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals respectively. Among them, a first sub-transmission path for transmitting the first wireless fidelity signal can be formed between the first power division unit 1211 in the first RF front-end module and a first RF port of the wireless fidelity module 110, and a second sub-transmission path for transmitting the first wireless fidelity signal can be formed between the first power division unit 1211 in the second RF front-end module and another first RF port of the wireless fidelity module 110. A third sub-transmission path for transmitting the second wireless fidelity signal can be formed between the second power division unit 1212 in the first RF front-end module and a second RF port of the wireless fidelity module 110. A fourth sub-transmission path for transmitting the second wireless fidelity signal can be formed between the second power division unit 1212 in the second RF front-end module and another second RF port of the wireless fidelity module 110. It can be understood that the RF component 100 has two first sub-transmission paths and a second sub-transmission path for transmitting the first wireless fidelity signal; the RF component 100 has two third sub-transmission paths and a fourth sub-transmission path for transmitting the second wireless fidelity signal. The RF component 100 can simultaneously support the transmission and reception processing of the two first wireless fidelity signals and the two second wireless fidelity signals, and can work in MIMO mode.

7 , the first power division unit 1211, the second power division unit 1212, the first combining unit 1221, and the second combining unit 1222 in the first RF front-end module can be represented by power division unit 1, power division unit 2, combining unit 1, and combining unit 2, respectively. The first power division unit 1211, the second power division unit 1212, the first combining unit 1221, and the second combining unit 1222 in the second RF front-end module can be represented by power division unit 3, power division unit 4, combining unit 3, and combining unit 4, respectively. Among them, the first end of the power division unit 1, the first end of the power division unit 2, the first end of the power division unit 3, and the first end of the power division unit 4 are respectively connected to the two first RF ports and the two second RF ports of the Wi-Fi module 110. The two second ends of the power splitter unit 1 are respectively connected to a first end of the combining unit 1 and a first end of the combining unit 2; the two second ends of the power splitter unit 2 are respectively connected to the other first end of the combining unit 1 and the other first end of the combining unit 2; the two second ends of the power splitter unit 3 are respectively connected to a first end of the combining unit 3 and a first end of the combining unit 4; the two second ends of the power splitter unit 4 are respectively connected to the other first end of the combining unit 3 and the other first end of the combining unit 4; the combining unit 1, combining unit 2, combining unit 3, combining unit 4 are respectively connected to the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4. For ease of explanation, the transmission principle of the dual-band signal is explained by taking the first wireless fidelity signal as a WiFi 2.4G signal, the second wireless fidelity signal as a WiFi5G signal, and the RF component 100 working in MIMO mode as an example.

The two first RF ports of the wireless fidelity module 110 can output WiFi 2.4G-0 signals and WiFi 2.4G-1 signals to the power division unit 1 and the power division unit 3, respectively. The power division unit 1 divides the received WiFi 2.4G-0 signal into two, and outputs the WiFi 2.4G-0-1 signal and the WiFi 2.4G-0-2 signal through the power division unit 1, respectively. The power division unit 3 divides the received WiFi 2.4G-1 signal into two, and outputs the WiFi 2.4G-1-1 signal and the WiFi 2.4G-1-2 signal through the power division unit 3, respectively. The two second RF ports of the wireless fidelity module 110 can output WiFi 5G-0 signals and WiFi 5G-1 signals to the power division unit 2 and the power division unit 4, respectively. The power division unit 2 divides the received WiFi 5G-0 signal into two, and outputs the WiFi 5G-0-1 signal and the WiFi 5G-0-2 signal through the power division unit 2, respectively. The power division unit 4 divides the received WiFi 5G-1 signal into two, and outputs the WiFi 5G-1-1 signal and the WiFi 5G-1-2 signal respectively through the power division unit 4.

The combining unit 1 combines the received WiFi 2.4G-0-1 signal and the WiFi5G-0-1 signal into a first dual-band signal (for example, a WiFi-2.4/5G-0-1 signal), and transmits it to the first antenna ANT1; the combining unit 2 combines the received WiFi2.4G-0-2 signal and the WiFi5G-0-2 signal into a first dual-band signal (for example, a WiFi-2.4/5G-0-2 signal), and transmits it to the second antenna ANT2; the combining unit 3 combines the received WiFi2.4G-1-1 signal and the WiFi 5G-1-1 signal into a third dual-band signal (for example, a WiFi-2.4/5G-1-1 signal), and transmits it to the third antenna ANT3; the combining unit 4 combines the received WiFi2.4G-1-2 signal and the WiFi5G-1-2 signal into a fourth dual-band signal (for example, a WiFi-2.4/5G-1-2 signal), and transmits it to the fourth antenna ANT4.

Optionally, the preprocessing of the RF front-end module 120 may include a processing method of first combining and then power dividing.

As shown in FIG8 , in one embodiment, the RF component 100 includes an RF front-end module 120, and the RF component 100 can support the SISO mode. The combining module in the RF front-end module 120 includes a third combining unit 1223, and the power splitting module in the RF front-end module 120 includes a third power splitting unit 1213. The two first ends of the third combining unit 1223 serve as the two first ends of the RF front-end module 120; the first end of the third power splitting unit 1213 is connected to the second end of the third power splitting unit 1213, and the two second ends of the third power splitting unit 1213 are used to be connected to two antennas (for example, the first antenna ANT1 and the second antenna ANT2) respectively. The third combining unit 1223 is used to combine the received first wireless fidelity signal and the second wireless fidelity signal, and output the combined signal. The third power splitting unit 1213 is used to perform power splitting processing on the received combined signal to output two dual-band signals to the corresponding first antenna ANT1 and the second antenna ANT2 respectively. Optionally, the third combining unit 1223 includes a multi-frequency combiner (eg, a dual-frequency combiner) to combine and filter the first wireless fidelity signal and the second wireless fidelity signal. The third power splitting unit 1213 includes an ultra-wideband power splitter to perform power splitting on the combined signal.

In this embodiment, a first transmission path for transmitting a first wireless fidelity signal may be formed between a first end of the third combining unit 1223 and a first RF port of the wireless fidelity module 110, and a second transmission path for transmitting a second wireless fidelity signal may be formed between another first end of the third combining unit 1223 and a second RF port of the wireless fidelity module 110. It can be understood that the number of the first transmission path and the second transmission path formed in the RF component 100 is 1 respectively, which can simultaneously support the transmission and reception processing of one first wireless fidelity signal and one second wireless fidelity signal, and can work in SISO mode.

For the sake of convenience, the transmission principle of the dual-band signal is explained by taking the first wireless fidelity signal as a WiFi 2.4G signal, the second wireless fidelity signal as a WiFi 5G signal, and the RF component 100 working in the SISO mode as an example.

The first RF port of the wireless fidelity module 110 can output a WiFi 2.4G signal to a first end of the third combining unit 1223 (for example, a dual-band combiner), and the second RF port of the wireless fidelity module 110 can output a WiFi 5G signal to another first end of the third combining unit 1223. The third combining unit 1223 combines the received WiFi 2.4G signal and the WiFi 5G signal, and outputs the combined signal to the third power division unit 1213. The third power division unit 1213 divides the received combined signal into two, outputs a first dual-band signal to the first antenna ANT1 via a second end of the third power division unit 1213, and outputs a second dual-band signal to the second antenna ANT2 via another second end of the third power division unit 1213.

As shown in FIG9 , optionally, in one embodiment, the wireless fidelity module 110 includes two first RF ports and two second RF ports, and the RF component 100 includes two RF front-end modules 120 to support the MIMO mode. Each RF front-end module 120 includes a third combining unit 1223 and a third power division unit 1213. The two RF front-end modules 120 can be respectively recorded as a first RF front-end module and a second RF front-end module. The two first ends of the first RF front-end module are respectively connected to the first antenna ANT1 and the second antenna ANT2, and are used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal (first combining processing, then power division processing) to output two dual-band signals respectively. The two first ends of the second RF front-end module are respectively connected to another first RF port and another second RF port, and the two first ends of the second RF front-end module are respectively connected to the third antenna ANT3 and the fourth antenna ANT4, and are used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal (first combining processing, then power division processing) to output two dual-band signals respectively.

Specifically, the third combining unit 1223 and the third power division unit 1213 in the first RF front-end module are represented by combining unit 1 and power division unit 1, respectively; the third combining unit 1223 and the third power division unit 1213 in the second RF front-end module are represented by combining unit 2 and power division unit 2, respectively. The two first ends of the power division unit 1 and the two first ends of the power division unit 2 are respectively connected to the two first RF ports and the two second RF ports of the wireless fidelity module 110. The second end of the power division unit 1 is connected to the first end of the combining unit 1, and the two second ends of the combining unit 1 are used to be connected to the first antenna ANT1 and the second antenna ANT2, respectively. The second end of the power division unit 2 is connected to the first end of the combining unit 2, and the two second ends of the combining unit 2 are used to be connected to the third antenna ANT3 and the fourth antenna ANT4, respectively. For the convenience of explanation, taking the first wireless fidelity signal as a WiFi 2.4G signal, the second wireless fidelity signal as a WiFi 5G signal, and the RF component 100 working in MIMO mode as an example, the transmission principle of the dual-band signal is explained.

A first RF port of the wireless fidelity module 110 can output a WiFi 2.4G-0 signal to a first end of the combiner unit 1, and a second RF port of the wireless fidelity module 110 can output a WiFi 5G-0 signal to another first end of the combiner unit 1. The combiner unit 1 can reasonably process the received WiFi 2.4G-0 signal and WiFi 5G-0 signal to output a combined signal (e.g., WiFi-2.4/5G-0 signal) to the power splitter unit 1. The power splitter unit 1 splits the received WiFi-2.4/5G-0 signal into two, outputs a first dual-band signal (e.g., WiFi-2.4/5G-0-1 signal) to the first antenna ANT1 via a second end of the power splitter unit 1, and outputs a second dual-band signal (e.g., WiFi-2.4/5G-0-2 signal) to the second antenna ANT2 via another second end of the third power splitter unit 1213.

Another first RF port of the wireless fidelity module 110 can output a WiFi 2.4G-1 signal to a first end of the combiner unit 2, and another second RF port of the wireless fidelity module 110 can output a WiFi 5G-1 signal to another first end of the combiner unit 2. The combiner unit 2 can reasonably process the received WiFi 2.4G-1 signal and WiFi 5G-1 signal to output a combined signal (e.g., WiFi-2.4/5G-1 signal) to the power splitter unit 2. The power splitter unit 2 splits the received WiFi-2.4/5G-1 signal into two, outputs a third dual-band signal (e.g., WiFi-2.4/5G-1-1 signal) to the third antenna ANT3 via a second end of the power splitter unit 2, and outputs a fourth dual-band signal (e.g., WiFi-2.4/5G-1-2 signal) to the fourth antenna ANT4 via another second end of the third power splitter unit 1213.

In one embodiment, the RF component 100 further includes at least one pair of test socket groups, each pair of test socket groups includes two test sockets, and each second end of each RF front-end module 120 is respectively connected to an antenna through a test socket. Among them, the test socket can be used to realize the connection between the RF front-end module 120 and each antenna. Exemplarily, when the combiner unit in the RF front-end module 120 is connected to the antenna, the test socket can realize the connection between the combiner unit and each antenna. When the power splitter unit in the RF front-end module 120 is connected to the antenna, the test socket can realize the connection between the power splitter unit and each antenna.

As shown in Figure 10, the embodiment of the present application further provides an electronic device 10, comprising the RF component 100 in any of the above embodiments and at least two antennas, wherein the two second ends of each RF front-end module 120 in the RF component 100 are respectively connected to the two antennas.

Optionally, the antenna provided in the embodiment of the present application can be for supporting the reception and transmission of WiFi signals. The antenna provided in the embodiment of the present application can also be one of a flexible printed circuit (FPC) antenna, a laser direct structuring (LDS) antenna, a print direct structuring (PDS) antenna, a radiation patch, and a metal radiation branch antenna. In the embodiment of the present application, the type of antenna is not further limited. In the embodiment of the present application, a suitable antenna type can be selected according to the specific type of the electronic device 10.

In the electronic device 10 in the embodiment of the present application, by providing the RF component 100, the RF front-end module 120 can combine and power-divide the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals, wherein the power of the first wireless fidelity signal in the dual-band signal is lower than the power of the first wireless fidelity signal from the wireless fidelity module 110 received by the RF front-end module 120, and the power of the second wireless fidelity signal in the dual-band signal is lower than the power of the second wireless fidelity signal from the wireless fidelity module 110 received by the RF front-end module 120. In this way, the power of each wireless fidelity signal in the dual-band signal can be reduced, and then the transmission power of each antenna can be reduced, so that the transmission power distribution is more uniform, thereby reducing SAR and Peak EIRP to meet the requirements of safety-related regulations. In addition, the RF front-end module 120 can output two dual-band signals to the two correspondingly connected antennas. Even if one of the antennas is blocked, it can ensure that one dual-band signal can be normally transmitted to the unblocked antenna, which can reduce the probability of blocking all antennas and significantly reducing the wireless performance when the electronic device 10 is held by the user, and can improve the communication performance of WiFi wireless communication. For example, if the electronic device 10 in the related art is only equipped with one WiFi antenna to support WiFi dual-band signal communication, and the embodiment of the present application is equipped with two antennas to support WiFi dual-band signal communication, the comparison in the same hand-held scenario (for example, blocking one antenna respectively) is shown in Table 3.

Table 3 is a comparative data table of the impact of the hand-holding scene on the related technology and the embodiment of the present application

Frequency band free space Related technology hand-held scenarios The present application embodiment holds the scene WiFi 2.4G -5dB -20dB -10dB WiFi 5G -6dB -17dB -9dB

It can be seen that the electronic device 10 provided in the embodiment of the present application greatly reduces the probability of both antennas being held in a dead position at the same time in a normal grip, and the hand grip effect is about 3-5dB, which is less than the effect of 10-15dB. Obviously, the communication performance of WiFi wireless communication can be greatly improved.

In an embodiment of the present application, the electronic device 10 includes a radio frequency component 100, a first antenna ANT1 and a second antenna ANT2, wherein the first antenna ANT1 and the second antenna ANT2 are respectively arranged on two sides of the electronic device 10 that is adjacent to each other. The radiation patterns generated by the first antenna ANT1 and the second antenna ANT2 when transmitting WiFi signals cover different spaces. Exemplarily, the two sides of the electronic device 10 that are adjacent to each other may include the side where the top of the electronic device 10 is located, and the side where the side adjacent to the top is located. Optionally, the two sides of the electronic device 10 that are adjacent to each other may include the side where the bottom of the electronic device 10 is located, and the side where the side adjacent to the bottom is located.

Optionally, the first antenna ANT1 and the second antenna ANT2 are respectively arranged on two sides of the electronic device 10 that are relatively arranged, and the radiation pattern of the first antenna ANT1 and the radiation pattern of the second antenna ANT2 present complementary characteristics. For example, the first antenna ANT1 may be located on the side where the top of the electronic device 10 is located, and the second antenna ANT2 may be located on the side where the bottom of the electronic device 10 is located. The radiation patterns generated by the first antenna ANT1 and the second antenna ANT2 when transmitting WiFi signals cover different spaces, and the radiation patterns of the first antenna ANT1 and the second antenna ANT2 can be complementary, so that even if the clearance area of the first antenna ANT1 and the second antenna ANT2 is small, the electronic device 10 can achieve omnidirectional characteristics in a specific plane.

As shown in FIG. 11 , in one embodiment, the electronic device 10 includes a wireless fidelity module 110, a first RF front-end module 120-1, a second RF front-end module 120-2, a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, and a fourth antenna ANT4, wherein the first RF front-end module 120-1 and the second RF front-end module 120-2 are the RF front-end modules 120 in any of the aforementioned embodiments. No further details will be given here.

The first RF front-end module 120-1 is connected to the first antenna ANT1 and the second antenna ANT2, respectively, and the second RF front-end module 120-2 is connected to the third antenna ANT3 and the fourth antenna ANT4, respectively. The first antenna ANT1 and the third antenna ANT3 are respectively arranged on two opposite sides of the electronic device 10, and the radiation pattern of the first antenna ANT1 and the radiation pattern of the third antenna ANT3 show complementary characteristics. The second antenna ANT2 and the fourth antenna ANT4 are respectively arranged on the other two opposite sides of the electronic device 10, and the radiation pattern of the second antenna ANT2 and the radiation pattern of the fourth antenna ANT4 show complementary characteristics.

In an embodiment of the present application, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 are respectively arranged on different sides of the terminal, so that the radiation patterns are complementary at various angles, so that there are fewer zero points in the pattern, and the probability of simultaneous failure is greatly reduced. Specifically, Figure 12 is a radiation pattern synthesized by two WiFi antennas in the related technical solution, and Figure 13 is a radiation pattern synthesized by four WiFi antennas in an embodiment of the present application. Among them, Figures 2 and 13 are two-dimensional radiation patterns, whose horizontal coordinates are used to characterize the direction angle Phi (φ), and the vertical coordinates are used to characterize the direction angle Theta (θ). From the comparison of the two figures, it can be seen that the omnidirectionality of the radiation pattern synthesized in Figure 10 is relatively poor, and the highest direction and the lowest direction are obviously different, while the radiation pattern shown in Figure 11 is relatively evenly distributed over the entire 360°.

In an embodiment of the present application, different types of antennas can be set according to the type of electronic device 10, such as mobile phones, tablets, customer front-end devices, routers, etc. For example, the four WiFi antennas (e.g., metal branch antennas) shown in Figure 14 can be used in electronic devices such as mobile phones and tablets. The four antennas shown in 15 can be used in electronic devices such as customer front-end devices (e.g., radiating patch antennas) as shown in Figure 16. The four WiFi antennas of the customer front-end device are arranged on four sides, and their radiation directions complement each other. The four antennas shown in Figure 17 can be used in electronic devices such as routers as shown in Figure 18. Four WiFi antennas (e.g., flexible circuit board slot antennas) are distributed in the four corners of the router PCB board, and the radiation patterns between them also show complementary characteristics. It should be noted that the antenna type of each antenna in the present application is not limited to the above examples, and a suitable antenna can also be selected according to the type of actual electronic device.

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 (13)

1. A radio frequency component, comprising: A Wi-Fi module, comprising at least one first radio frequency port for transmitting a first Wi-Fi signal, and at least one second radio frequency port for transmitting a second Wi-Fi signal; At least one RF front-end module, the two first ends of each RF front-end module are respectively connected to the first RF port and the second RF port, and the two second ends of each RF front-end module are respectively connected to the two antennas, wherein: The RF front-end module is used to pre-process the received first wireless fidelity signal and the second wireless fidelity signal to output two dual-band signals to the corresponding two connected antennas respectively, each of the dual-band signals includes the first wireless fidelity signal and the second wireless fidelity signal respectively, and the pre-processing includes combining and power dividing the received first wireless fidelity signal and the second wireless fidelity signal. 2. The RF component according to claim 1 is characterized in that the RF front-end module includes a power division module and a combining module connected to the power division module, wherein one of the power division module and the combining module is respectively connected to the first RF port and the second RF port of the wireless fidelity module, and the other of the power division module and the combining module is respectively connected to the two antennas. 3. The radio frequency component according to claim 2, characterized in that the power division module comprises a first power division unit and a second power division unit, and the combining module comprises a first combining unit and a second combining unit, wherein: The first end of the first power division unit serves as a first end of the RF front-end module, and the first power division unit is used to power-divide the received first wireless fidelity signal into two paths, and output the two paths to the first combining unit and the second combining unit respectively; The first end of the second power division unit serves as the other first end of the RF front-end module, and the second power division unit is used to power-divide the received second wireless fidelity signal into two paths, and output them to the first combining unit and the second combining unit respectively; The first combining unit is used to combine the received first wireless fidelity signal and the second wireless fidelity signal, and output the first dual-band signal to the first antenna; The second combining unit is used to combine the received second Wi-Fi signal and the second Wi-Fi signal, and output a second dual-band signal to the second antenna. 4. The RF component according to claim 3, characterized in that the first end of the first power division unit is connected to the first RF port, and the two second ends of the first power division unit are respectively connected to a first end of the first combining unit and a first end of the second combining unit; The first end of the second power division unit is connected to the second RF port, and the two second ends of the second power division unit are respectively connected to the other first end of the first combining unit and the other first end of the second combining unit; The second end of the first combining unit is used to connect to the first antenna; The second end of the second combining unit is used to connect to the second antenna. 5. The RF component according to claim 3, characterized in that the combining module comprises a third combining unit, wherein two first ends of the third combining unit serve as two first ends of the RF front-end module, and the third combining unit is used to combine the received first wireless fidelity signal and the second wireless fidelity signal, and output a combined signal; The power division module includes a third power division unit, wherein the first end of the third power division unit is connected to the second end of the third power division unit, and is used to perform power division processing on the received combined signal to output two dual-band signals to the corresponding two antennas respectively. 6 . The radio frequency component according to claim 3 , wherein each of the third power division units is an ultra-wideband power divider. 7. The RF component according to claim 1, wherein the Wi-Fi module comprises two of the first RF ports, two of the second RF ports, a first RF front-end module and a second RF front-end module, wherein: The two first ends of the first RF front-end module are respectively connected to the first RF port and the second RF port, and the two second ends of the first RF front-end module are respectively connected to the two antennas; The two first ends of the second RF front-end module are respectively connected to another first RF port and another second RF port, and the two second ends of the second RF front-end module are used to be connected to two antennas. 8. The RF component according to claim 1 is characterized in that the RF component also includes at least one pair of test socket groups, each of the test socket groups includes two test sockets, and the second end of each of the RF front-end modules is respectively connected to the antenna through one of the test sockets. 9. An electronic device, comprising the radio frequency component according to any one of claims 1 to 8 and at least two antennas, wherein: The two second ends of each of the RF front-end modules are connected to the two antennas respectively. 10 . The electronic device according to claim 9 , characterized in that the electronic device comprises a housing, the radio frequency component, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively arranged on two sides of the electronic device that are adjacent to each other. 11. The electronic device according to claim 9 is characterized in that the electronic device comprises a shell, the radio frequency component, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively arranged on two opposite sides of the electronic device, and the radiation pattern of the first antenna and the radiation pattern of the second antenna show complementary characteristics. 12. The electronic device according to claim 9, characterized in that the electronic device comprises a first antenna, a second antenna, a third antenna, and a fourth antenna, and the radio frequency component comprises two of the radio frequency front-end modules, wherein: The two second ends of each of the RF front-end modules are respectively connected to the first antenna, the second antenna, the third antenna, and the fourth antenna; The first antenna and the third antenna are respectively arranged on two opposite sides of the electronic device, and the radiation pattern of the first antenna and the radiation pattern of the third antenna are complementary; The second antenna and the fourth antenna are respectively arranged on the other two opposite sides of the electronic device, and the radiation pattern of the second antenna and the radiation pattern of the fourth antenna are complementary. 13. The electronic device according to claim 9, characterized in that the antenna can be one of a flexible circuit board slot antenna, a laser direct forming antenna, a printed direct forming antenna, a patch antenna and a metal branch antenna.