Ultra-wideband front-end module, communication equipment and control method

Abstract

The invention provides an ultra-wideband front-end module, communication equipment and a control method. The ultra-wideband front-end module comprises a first power supply end, a second power supply end, a radio frequency power amplification circuit, a low-noise amplification circuit, a switch switching circuit and a filter circuit, the ultra-wideband front-end discrete devices are integrated into the ultra-wideband front-end module, and the performance of the ultra-wideband product is optimized by using modular processing, so that the application of the ultra-wideband product is simpler and more efficient, and the device layout area and the structure space are reduced; besides, useless electromagnetic waves in a non-ultra-wideband signal frequency band range are filtered through a filter circuit, and meanwhile, a time division switching mode is adopted, so that an ultra-wideband product, a wireless wide area network and a wireless local area network coexist on the same communication terminal product, and the probability that the ultra-wideband product is damaged when the ultra-wideband product works with the wireless wide area network and the wireless local area network at the same time can be reduced. Therefore, the ultra wide band product can be better integrated into the existing communication terminal product.

Description

Technical Field

[0001] This application relates to the field of ultra-wideband wireless communication technology, and in particular, to an ultra-wideband front-end module, a communication device, and a control method. Background Art

[0002] Ultra Wide Band (UWB) is a wireless communication technology modulated by extremely narrow pulses. Its signal bandwidth can reach the GHZ level and is suitable for short-distance high-speed data transmission and precise positioning. The ultra-wideband technology was initially applied in the military field and has gradually entered the civilian market in recent years. It is mainly applied in fields such as indoor positioning and wireless sensor networks. For example, in applications that require indoor precise positioning such as locating vehicles in an underground parking lot or self-navigation when shopping in a large supermarket.

[0003] When the ultra-wideband technology is applied to the radio frequency front-end circuit of communication terminal products, the functions of wireless radio frequency transceiver need to be completed. In the prior art, discrete devices are usually used to complete the functions of wireless radio frequency transceiver. However, for communication terminal products that are compatible with multiple communication systems, more usage scenarios need to be considered, and higher performance requirements are imposed. Since the discrete devices in the technical solution are completely independent of each other, each device realizes its own function, and there is a lack of status indication and management between devices, the technical solution of discrete devices is restricted. On the other hand, the discrete device solution often occupies more layout area and structural space, which is contradictory to the development trend of smaller and lighter communication terminals.

[0004] The ultra-wideband technology usually includes channels 1 to 15, and the covered center frequency range is approximately from 3.5 GHZ to 9.5 GHZ. From the perspective of the spectrum, the communication systems sharing the same or similar frequency range with the ultra-wideband technology mainly include Wireless Wide Area Network (WWAN) and Wireless Local Area Network (WLAN). When the ultra-wideband technology is applied to communication terminal products, interference will occur between them when they work simultaneously with the wireless wide area network and the wireless local area network. Therefore, the coexistence problem with the existing communication systems on the communication terminal products also needs to be considered in order to better integrate into the existing communication terminal products. Summary of the Invention

[0005] This application provides an ultra-wideband front-end module, a communication device, and a control method to reduce the device layout area and structural space and reduce interference with the existing communication systems on the communication terminal products.

[0006] In a first aspect, the present application provides an ultra-wideband front-end module, and the ultra-wideband front-end module includes: a first power supply terminal, a second power supply terminal, a radio frequency power amplifier circuit, a low-noise amplifier circuit, a switch switching circuit, and a filter circuit;

[0007] The first power supply terminal is used to access a first power supply voltage to supply power to the radio frequency power amplifier circuit;

[0008] The second power supply terminal is used to access a second power supply voltage to supply power to the low-noise amplifier circuit and the switch switching circuit;

[0009] The radio frequency power amplifier circuit is used to receive a first transmission signal, amplify the first transmission signal to obtain a second transmission signal, and transmit the second transmission signal to the switch switching circuit;

[0010] The switch switching circuit is used to transmit the second transmission signal to the filter circuit according to a channel control signal;

[0011] The filter circuit is used to filter the second transmission signal to obtain a third transmission signal and transmit the third transmission signal; it is also used to receive a first received signal, a second received signal, and a third received signal, filter the first received signal to obtain a first filtered signal and transmit the first filtered signal to the switch switching circuit; filter the second received signal and the third received signal to obtain a second filtered signal and a third filtered signal and transmit the second filtered signal and the third filtered signal to the low-noise amplifier circuit;

[0012] The switch switching circuit is further used to transmit the first filtered signal to the low-noise amplifier circuit according to the channel control signal;

[0013] The low-noise amplifier circuit is used to amplify the first filtered signal, the second filtered signal, and the third filtered signal to obtain a first ultra-wideband received signal, a second ultra-wideband received signal, and a third ultra-wideband received signal.

[0014] In a possible design, the radio frequency power amplifier circuit includes: a radio frequency power amplifier, a first enable terminal, and a transmission terminal;

[0015] The radio frequency power amplifier is used to receive the first transmission signal accessed by the transmission terminal and amplify the first transmission signal according to a first enable signal accessed by the first enable terminal to obtain a second transmission signal.

[0016] In a possible design, the switch switching circuit includes: a single-pole double-throw switch and a control terminal;

[0017] The common terminal of the single-pole double-throw switch is electrically connected to the filter circuit, the first terminal of the single-pole double-throw switch is electrically connected to the RF power amplifier circuit, and the second terminal of the single-pole double-throw switch is electrically connected to the low-noise amplifier circuit;

[0018] The single-pole double-throw switch is configured to transmit the second transmission signal to the filter circuit according to the channel control signal applied to the control terminal; and is further configured to transmit the first filtered signal to the low-noise amplifier circuit.

[0019] In a possible design, the filter circuit includes: a first band-pass filter, a second band-pass filter, a third band-pass filter, a first antenna terminal, a second antenna terminal, and a third antenna terminal;

[0020] The first band-pass filter is configured to filter the second transmission signal to obtain a third transmission signal, and transmit the third transmission signal through the first antenna terminal; and is further configured to receive the first received signal through the first antenna terminal, filter the first received signal to obtain the first filtered signal, and transmit the first filtered signal to the switch switching circuit;

[0021] The second band-pass filter is configured to receive the second received signal through the second antenna terminal, filter the second received signal to obtain a second filtered signal, and transmit the second filtered signal to the low-noise amplifier circuit;

[0022] The third band-pass filter is configured to receive the third received signal through the third antenna terminal, filter the third received signal to obtain a third filtered signal, and transmit the third filtered signal to the low-noise amplifier circuit.

[0023] In a possible design, the low-noise amplifier circuit includes: a first low-noise amplifier, a second low-noise amplifier, a third low-noise amplifier, a second enable terminal, a first receiving terminal, a second receiving terminal, and a third receiving terminal;

[0024] The first low-noise amplifier is configured to amplify the first filtered signal according to the second enable signal applied to the second enable terminal to obtain a first ultra-wideband received signal, and transmit the first ultra-wideband received signal to the first receiving terminal;

[0025] The second low-noise amplifier is configured to amplify the second filtered signal according to the second enable signal applied to the second enable terminal to obtain a second ultra-wideband received signal, and transmit the second ultra-wideband received signal to the second receiving terminal;

[0026] The third low-noise amplifier is configured to amplify the third filtered signal according to the second enable signal received at the second enable terminal, obtain a third ultra-wideband received signal, and transmit the third ultra-wideband received signal to the third receiving terminal.

[0027] In a possible design, the bandwidths of the first band-pass filter, the second band-pass filter, and the third band-pass filter are all 6.2 GHz to 9.2 GHz.

[0028] In a possible design, the out-of-band rejection ratios of the first band-pass filter, the second band-pass filter, and the third band-pass filter are all greater than or equal to 30 dB, and the in-band insertion losses are all less than or equal to 1 dB.

[0029] In a second aspect, the present application provides a communication device. The communication device includes: the ultra-wideband front-end module according to any one of claims 1-7, and further includes: a system-on-chip, a first antenna, a second antenna, a third antenna, and a WIFI network device;

[0030] The first enable terminal is electrically connected to the first end of the system-on-chip, the transmitting terminal is electrically connected to the second end of the system-on-chip, the first receiving terminal is electrically connected to the third end of the system-on-chip, the second receiving terminal is electrically connected to the fourth end of the system-on-chip, the third receiving terminal is electrically connected to the fifth end of the system-on-chip, the second enable terminal is electrically connected to the sixth end of the system-on-chip, and the control terminal is electrically connected to the seventh end of the system-on-chip;

[0031] The first antenna is electrically connected to the first antenna terminal;

[0032] The second antenna is electrically connected to the second antenna terminal;

[0033] The third antenna is electrically connected to the third antenna terminal;

[0034] The WIFI network device is electrically connected to the system-on-chip.

[0035] In a possible design, the WIFI network device includes: a WIFI antenna, a combiner, a WIFI 2.4G front-end module, and a WIFI 5 / 6G front-end module;

[0036] The WIFI antenna is electrically connected to the third end of the combiner;

[0037] The first end of the combiner is electrically connected to the output end of the WIFI 2.4G front-end module, and the second end of the combiner is electrically connected to the output end of the WIFI 5 / 6G front-end module;

[0038] The transmitting end of the WIFI 2.4G front-end module is electrically connected to the eighth terminal of the system-on-chip, and the receiving end of the WIFI 2.4G front-end module is electrically connected to the ninth terminal of the system-on-chip;

[0039] The transmitting end of the WIFI 5 / 6G front-end module is electrically connected to the tenth terminal of the system-on-chip, and the receiving end of the WIFI 5 / 6G front-end module is electrically connected to the eleventh terminal of the system-on-chip.

[0040] In a third aspect, the present application provides a control method, which is applied to the communication device as described in the second aspect. The method includes:

[0041] When the first enabling signal is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, if the operating frequency band of the WIFI network device is 5.9 GHz to 7.2 GHz, control the low-noise amplifier in the WIFI 5 / 6G front-end module to be in an off state;

[0042] When the enabling signal of the power amplifier in the WIFI 5 / 6G front-end module is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, if the operating frequency band of the WIFI network device is 5.9 GHz to 7.2 GHz, control the second enabling signal to be at a low level so that the low-noise amplification circuit is in an off state.

[0043] Advantages of the embodiments of the present application:

[0044] In the embodiments of the present application, by integrating ultra-wideband front-end discrete devices into an ultra-wideband front-end module and using modular processing, the performance of ultra-wideband products is optimized, making the application of ultra-wideband products more concise and efficient, which is beneficial to reducing the device layout area and structural space, thereby reducing the material cost and the size and weight of the product; in addition, through the filter circuit, the ultra-wideband product can coexist with the wireless wide-area network and the wireless local area network on the same communication terminal product, which can reduce the interference problem generated between them when working simultaneously with the wireless wide-area network and the wireless local area network, that is, reduce the interference with the existing communication systems on the communication terminal product, realizing the coexistence of the ultra-wideband product with the wireless wide-area network and the wireless local area network, and enabling the ultra-wideband product to be better integrated into the existing communication terminal products.

[0045] For what is provided in the above second aspect and each possible design of the second aspect, the beneficial effects can refer to the beneficial effects brought by the above first aspect and each possible implementation manner of the first aspect, which will not be elaborated here. Description of the Drawings

[0046] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can also be obtained based on these drawings.

[0047] Figure 1 FIG. 4 is a schematic structural diagram of an ultra-wideband front-end module provided by an embodiment of the present application;

[0048] Figure 2 FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Detailed implementation manners

[0049] In the present application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (item)" or its similar expression refers to any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a alone, b alone, or c alone can represent: a alone, b alone, c alone, the combination of a and b, the combination of a and c, the combination of b and c, or the combination of a, b, and c, where a, b, and c can be single or multiple. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 to the present application.

[0051] The terms "connected" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a circuit structure can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element as long as the circuit is connected, and it can also be the internal connection of two elements; the signal connection can refer not only to the signal connection through a circuit but also to the signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0052] In order to solve the problems that the layout area and structural space occupied by the discrete device solution in the related art are relatively large, and when the ultra-wideband technology is applied to communication terminal products, interference occurs between the ultra-wideband technology and the wireless wide area network and the wireless local area network when they work simultaneously, the embodiment of the present application provides an ultra-wideband front-end module. The ultra-wideband front-end module includes: a first power supply terminal, a second power supply terminal, a radio frequency power amplifier circuit, a low-noise amplifier circuit, a switch switching circuit, and a filtering circuit, which realize the same functions as the discrete device solution. By integrating the ultra-wideband front-end discrete devices into an ultra-wideband front-end module and using modular processing, the performance of the ultra-wideband product is optimized, making the application of the ultra-wideband product more concise and efficient, which is beneficial to reducing the device layout area and structural space. In addition, through the filtering circuit, the ultra-wideband product can coexist with the wireless wide area network and the wireless local area network on the same communication terminal product, and the problem of interference between them when working simultaneously can be reduced, that is, the interference with the existing communication system on the communication terminal product can be reduced.

[0053] See Figure 1 , Figure 1 FIG. is a schematic structural diagram of an ultra-wideband front-end module provided by an embodiment of the present application. As Figure 1 shown, the ultra-wideband front-end module 1000 may include: a first power supply terminal S1, a second power supply terminal S2, a radio frequency power amplifier circuit 100, a low-noise amplifier circuit 200, a switch switching circuit 300, and a filtering circuit 400.

[0054] The first power supply terminal S1 is used to access the first power supply voltage VCC to supply power to the radio frequency power amplifier circuit 100.

[0055] The second power supply terminal S2 is used to access the second power supply voltage VDD to supply power to the low-noise amplifier circuit 200 and the switch switching circuit 300.

[0056] The radio frequency power amplifier circuit 100 is used to receive the first transmission signal, amplify the first transmission signal to obtain a second transmission signal, and transmit the second transmission signal to the switch switching circuit 300.

[0057] The switch switching circuit 300 is used to transmit the second transmission signal to the filtering circuit 400 according to the channel control signal VC_IN.

[0058] The filtering circuit 400 is used to filter the second transmission signal to obtain a third transmission signal and transmit the third transmission signal; it is also used to receive the first received signal, the second received signal, and the third received signal, filter the first received signal to obtain a first filtered signal, and transmit the first filtered signal to the switch switching circuit 300; filter the second received signal and the third received signal to obtain a second filtered signal and a third filtered signal, and transmit the second filtered signal and the third filtered signal to the low-noise amplification circuit 200.

[0059] The switch switching circuit 300 is further configured to transmit the first filtered signal to the low-noise amplification circuit 200 according to the channel control signal VC_IN.

[0060] The low-noise amplification circuit 200 is used to amplify the first filtered signal, the second filtered signal, and the third filtered signal to obtain a first ultra-wideband received signal, a second ultra-wideband received signal, and a third ultra-wideband received signal.

[0061] The ultra-wideband front-end module in this application is an ultra-wideband product, which is usually used on communication terminal products as the radio frequency front-end circuit part of communication terminal products to realize the functions of wireless signal transmission and reception. For example, the ultra-wideband front-end module is applied to a smart phone to realize the positioning function through the transmission and reception of wireless signals. The ultra-wideband front-end module is usually electrically connected to a system-on-chip, and the system-on-chip supports the transmission, reception, modulation, and demodulation of ultra-wideband (UWB) signals.

[0062] The first power supply terminal S1 serves as the power supply input port of the ultra-wideband front-end module, accesses the first power supply voltage VCC, and supplies power to the radio frequency power amplifier circuit 100. The voltage range of the first power supply voltage VCC is 2.9V to 4.3V. For example, the first power supply voltage VCC is 3.4V. The second power supply terminal S2 serves as the power supply input port of the ultra-wideband front-end module, accesses the second power supply voltage VDD, and supplies power to the low-noise amplification circuit 200 and the switch switching circuit 300. For example, the second power supply voltage VDD can usually be 1.2V. In addition, the devices in the filtering circuit are passive devices and do not require power supply.

[0063] In actual project applications, the first power supply voltage VCC and the second power supply voltage VDD can be provided by an external circuit outside the ultra-wideband front-end module. For example, the first power supply voltage VCC and the second power supply voltage VDD are provided by a low-dropout regulator (LDO) or a buck circuit, or the first power supply voltage VCC and the second power supply voltage VDD can also be provided by a battery, as long as the voltage requirements of the first power supply voltage VCC and the second power supply voltage VDD can be met. This application does not make specific limitations on this.

[0064] The first transmission signal is a UWB modulation signal sent by a modem in a system-on-chip. After amplifying this signal through a radio frequency power amplifier circuit 100, a second transmission signal is obtained and transmitted to a switch switching circuit 300. The channel control signal VC_IN is the channel selection control signal of the switch switching circuit 300. Different paths can be selected through this signal. The switch switching circuit 300 selects the corresponding path according to the channel control signal VC_IN and transmits the second transmission signal to a filtering circuit 400. After the filtering circuit 400 performs filtering processing on the second transmission signal, a third transmission signal is obtained and transmitted, realizing the wireless signal transmission function.

[0065] In addition, the filtering circuit 400 is also used for receiving wireless signals. The first received signal, the second received signal, and the third received signal are received through the filtering circuit 400. After filtering processing on the first received signal, the second received signal, and the third received signal, a first filtered signal, a second filtered signal, and a third filtered signal are obtained. In this application, the first filtered signal is transmitted to the switch switching circuit 300. The switch switching circuit 300 selects the corresponding path according to the channel control signal VC_IN and transmits the first filtered signal to a low-noise amplifier circuit 200. The second filtered signal and the third filtered signal are also directly transmitted to the low-noise amplifier circuit, realizing the function of one-way transmission and three-way reception, which can effectively improve the wireless signal reception ability.

[0066] The low-noise amplifier circuit 200 amplifies the first filtered signal, the second filtered signal, and the third filtered signal to obtain a first ultra-wideband received signal, a second ultra-wideband received signal, and a third ultra-wideband received signal, and transmits the first ultra-wideband received signal, the second ultra-wideband received signal, and the third ultra-wideband received signal to the modem in the system-on-chip for demodulation of wireless signals.

[0067] The filtering circuit includes a band-pass filter. During the filtering process, useless electromagnetic waves within the frequency band range other than the ultra-wideband (UWB) signal frequency band can be filtered, enabling the UWB product and the wireless wide area network and the wireless local area network to coexist on the same communication terminal product, and reducing the problem of interference between them when working simultaneously.

[0068] In the embodiments of the present application, by integrating the ultra-wideband front-end discrete devices into an ultra-wideband front-end module and using modular processing, the performance of the ultra-wideband product is optimized, making the application of the ultra-wideband product more concise and efficient, which is conducive to reducing the device layout area and structural space, thereby reducing the material cost and the size and weight of the product. In addition, through the filter circuit, the ultra-wideband product can coexist with the wireless wide-area network and the wireless local area network on the same communication terminal product, which can reduce the interference problem generated between them when working with the wireless wide-area network and the wireless local area network at the same time, that is, reduce the interference with the existing communication systems on the communication terminal product, realizing the coexistence of the ultra-wideband product with the wireless wide-area network and the wireless local area network, and enabling the ultra-wideband product to better integrate into the existing communication terminal products.

[0069] In a possible embodiment, refer to Figure 1 , such as Figure 1 shown, the radio frequency power amplification circuit 100 may include: a radio frequency power amplifier PA, a first enable terminal EN1, and a transmission terminal TX_IN.

[0070] The first enable terminal EN1 serves as the input terminal of the enable signal of the radio frequency power amplifier PA, and triggers the radio frequency power amplifier PA to work when the first enable signal PA_EN is at a high level.

[0071] The radio frequency power amplifier PA is configured to receive the first transmission signal accessed by the transmission terminal TX_IN, and amplify the first transmission signal according to the first enable signal PA_EN accessed by the first enable terminal EN1 to obtain a second transmission signal.

[0072] In wireless communication, dBm is usually used to represent the output power or received power of radio signals. For example, the maximum transmission power of a mobile phone is 23 dBm. The radio frequency power amplifier PA is used to amplify the power of the UWB modulation signal (i.e., the first transmission signal) sent by the modem in the system-on-chip to obtain a second transmission signal. The operating frequency range of the radio frequency power amplifier PA is 6.2 GHz to 9.2 GHz.

[0073] In a possible embodiment, refer to Figure 1 , such as Figure 1 shown, the switch switching circuit 300 may include: a single-pole double-throw switch SPDT and a control terminal C1.

[0074] The common terminal RF3 of the single-pole double-throw switch SPDT is electrically connected to the filter circuit 400, the first terminal RF1 of the single-pole double-throw switch SPDT is electrically connected to the radio frequency power amplification circuit 100, and the second terminal RF2 of the single-pole double-throw switch SPDT is electrically connected to the low-noise amplification circuit 200.

[0075] The single-pole double-throw switch SPDT is used to transmit the second transmission signal to the filter circuit 400 according to the channel control signal VC_IN accessed by the control terminal C1; it is also used to transmit the first filtered signal to the low-noise amplifier circuit 200.

[0076] The single-pole double-throw switch SPDT serves as a path switching switch for the transmission signal and the reception signal. It can select different paths according to the channel control signal VC_IN accessed by the control terminal C1. For example, when the channel control signal VC_IN is at a high level, the common terminal RF3 of the single-pole double-throw switch SPDT is electrically connected to the first terminal RF1, and the transmission signal path is turned on; when the channel control signal VC_IN is at a low level, the common terminal RF3 of the single-pole double-throw switch SPDT is electrically connected to the second terminal RF2, and the reception signal path is turned on. In this way, the second transmission signal can be transmitted to the filter circuit 400 or the first filtered signal can be transmitted to the low-noise amplifier circuit 200 according to the channel control signal VC_IN accessed by the control terminal C1.

[0077] The operating frequency range of the single-pole double-throw switch SPDT is 6.2 GHz to 9.2 GHz.

[0078] In a possible embodiment, refer to Figure 1 , such as Figure 1 shown, the filter circuit 400 includes: a first band-pass filter BPF1, a second band-pass filter BPF2, a third band-pass filter BPF3, a first antenna terminal ANT1, a second antenna terminal ANT2, and a third antenna terminal ANT3.

[0079] The first band-pass filter BPF1 is used to filter the second transmission signal to obtain a third transmission signal, and transmit the third transmission signal through the first antenna terminal ANT1; it is also used to receive the first reception signal using the first antenna terminal ANT1, filter the first reception signal to obtain a first filtered signal, and transmit the first filtered signal to the switch switching circuit 300.

[0080] The second band-pass filter BPF2 is used to receive the second reception signal using the second antenna terminal ANT2, filter the second reception signal to obtain a second filtered signal, and transmit the second filtered signal to the low-noise amplifier circuit 200.

[0081] The third band-pass filter BPF3 is used to receive the third reception signal using the third antenna terminal ANT3, filter the third reception signal to obtain a third filtered signal, and transmit the third filtered signal to the low-noise amplifier circuit 200.

[0082] The bandwidths of the first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3 are all 6.2 GHz to 9.2 GHz, which are used to filter out the useless electromagnetic waves within the frequency band range of non-ultra-wideband (UWB) signals, ensuring the reliability and accuracy of the demodulation of ultra-wideband (UWB) signals.

[0083] The first antenna terminal ANT1, the second antenna terminal ANT2, and the third antenna terminal ANT3 serve as interfaces for external antennas and are electrically connected to the antennas. In the embodiments of the present application, the antenna connected to the first antenna terminal ANT1 can transmit signals or receive signals; the antennas connected to the second antenna terminal ANT2 and the third antenna terminal ANT3 are only used to receive signals. Thus, the first antenna terminal ANT1 is the port of the transmission path and the reception path, and the second antenna terminal ANT2 and the third antenna terminal ANT3 are the ports of the reception path, which can realize the function of one-way transmission and three-way reception, effectively improving the reception ability of wireless signals.

[0084] In a possible embodiment, refer to Figure 1 , as Figure 1 shown, the low-noise amplification circuit 200 includes: a first low-noise amplifier LNA1, a second low-noise amplifier LNA2, a third low-noise amplifier LNA3, a second enable terminal EN2, a first reception terminal RX1_OUT, a second reception terminal RX2_OUT, and a third reception terminal RX2_OUT.

[0085] The first low-noise amplifier LNA1 is used to amplify the first filtered signal according to the second enable signal LNA_EN accessed by the second enable terminal EN2 to obtain a first ultra-wideband reception signal, and transmit the first ultra-wideband reception signal to the first reception terminal RX1_OUT.

[0086] The second low-noise amplifier LNA2 is used to amplify the second filtered signal according to the second enable signal LNA_EN accessed by the second enable terminal EN2 to obtain a second ultra-wideband reception signal, and transmit the second ultra-wideband reception signal to the second reception terminal RX2_OUT.

[0087] The third low-noise amplifier LNA3 is used to amplify the third filtered signal according to the second enable signal LNA_EN accessed by the second enable terminal EN2 to obtain a third ultra-wideband reception signal, and transmit the third ultra-wideband reception signal to the third reception terminal RX2_OUT.

[0088] The first low-noise amplifier LNA1, the second low-noise amplifier LNA2, and the third low-noise amplifier LNA3 are used to amplify the ultra-wideband (UWB) signals received from the antenna terminal, and their operating frequency range is 6.2 GHz to 9.2 GHz. The second enable signal LNA_EN is the enable signal for each low-noise amplifier. When the second enable signal LNA_EN is at a high level, each low-noise amplifier is triggered to start working.

[0089] The first receiving end RX1_OUT, the second receiving end RX2_OUT, and the third receiving end RX2_OUT are respectively electrically connected to the output ends of the first low-noise amplifier LNA1, the second low-noise amplifier LNA2, and the third low-noise amplifier LNA3. After filtering and amplifying the first received signal, the second received signal, and the third received signal received from the first antenna terminal ANT1, the second antenna terminal ANT2, and the third antenna terminal ANT3, they are transmitted to the modem in the system-on-chip through the first receiving end RX1_OUT, the second receiving end RX2_OUT, and the third receiving end RX2_OUT for demodulation of wireless signals.

[0090] In a possible embodiment, the out-of-band rejection of the first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3 is greater than or equal to 30 dB, and the in-band insertion loss is less than or equal to 1 dB.

[0091] The first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3 are used to filter out the useless electromagnetic waves outside the ultra-wideband (UWB) signal frequency band range. Usually, the out-of-band rejection of each band-pass filter is set to be greater than or equal to 30 dB, and the in-band insertion loss is set to be less than or equal to 1 dB. In one example, the out-of-band rejection of each band-pass filter is set to 40 dB, and the in-band insertion loss is set to 0.5 dB.

[0092] Based on all the above embodiments, see Figure 1, the working principle of the ultra-wideband front-end module in this application is described. Among them, the signal transmission process is as follows: The ultra-wideband (UWB) signal to be transmitted is modulated by the modem in the system-on-chip and enters the ultra-wideband front-end module through the transmitter TX_IN as the first transmitted signal (i.e., the UWB modulated signal). At this time, when the first enable signal PA_EN is at a high level, the radio frequency power amplifier PA is triggered to start working, amplifying the first transmitted signal connected to the transmitter TX_IN to obtain the second transmitted signal, and transmitting the second transmitted signal to the first end RF1 of the single-pole double-throw switch SPDT. When the channel control signal VC_IN is at a high level, the common end RF3 of the single-pole double-throw switch SPDT is electrically connected to the first end RF1, and the transmission signal path is turned on. The second transmitted signal is transmitted to the first band-pass filter BPF1. The first band-pass filter BPF1 filters the second transmitted signal, attenuating the useless electromagnetic wave signals outside the ultra-wideband (UWB) signal frequency band by more than 30 dB and attenuating the useful electromagnetic wave signals within the ultra-wideband (UWB) signal frequency band by less than 1 dB to obtain the third transmitted signal, and transmitting the third transmitted signal to the first antenna terminal ANT1, and transmitting it through the antenna electrically connected to the first antenna terminal ANT1 for other terminal devices, tags, or base stations and other devices to receive and demodulate.

[0093] The signal reception process is as follows: The ultra-wideband (UWB) signal transmitted from other terminal devices or base stations and other devices is received through the antenna electrically connected to the first antenna terminal ANT1 to obtain the first received signal. The first received signal enters the ultra-wideband front-end module through the first antenna terminal ANT1. The first band-pass filter BPF1 filters the first received signal, attenuating the useless electromagnetic wave signals outside the ultra-wideband (UWB) signal frequency band by more than 30 dB and attenuating the useful electromagnetic wave signals within the ultra-wideband (UWB) signal frequency band by less than 1 dB to obtain the first filtered signal, and transmitting the first filtered signal to the common end RF3 of the single-pole double-throw switch SPDT. At this time, when the channel control signal VC_IN is at a low level, the common end RF3 of the single-pole double-throw switch SPDT is electrically connected to the second end RF2, and the reception signal path is turned on. The first filtered signal is transmitted to the first low-noise amplifier LNA1. When the second enable signal LNA_EN is at a high level, the first low-noise amplifier LNA1 starts working, amplifying the first filtered signal to obtain the first ultra-wideband received signal, and transmitting the first ultra-wideband received signal to the first receiver RX1_OUT. The first ultra-wideband received signal is transmitted to the modem in the system-on-chip through the first receiver RX1_OUT for signal demodulation.

[0094] Meanwhile, the ultra-wideband (UWB) signals transmitted from other terminal devices or devices such as base stations are received by antennas electrically connected to the second antenna terminal ANT2 and the third antenna terminal ANT3, and second received signals and third received signals are obtained. The second band-pass filter BPF2 and the third band-pass filter BPF3 respectively filter the second received signal and the third received signal, attenuate the useless electromagnetic wave signals outside the ultra-wideband (UWB) signal frequency band by more than 30 dB, and attenuate the useful electromagnetic wave signals within the ultra-wideband (UWB) signal frequency band by less than 1 dB, to obtain a second filtered signal and a third filtered signal, and transmit the second filtered signal to the second low-noise amplifier LNA2, and transmit the third filtered signal to the third low-noise amplifier LNA3. When the second enable signal LNA_EN is at a high level, the second low-noise amplifier LNA2 and the third low-noise amplifier LNA3 start to work, amplify the second filtered signal and the third filtered signal, to obtain a second ultra-wideband received signal and a third ultra-wideband received signal, and transmit the second ultra-wideband received signal to the second receiving end RX2_OUT, and transmit the third ultra-wideband received signal to the third receiving end RX3_OUT. The second ultra-wideband received signal and the third ultra-wideband received signal are transmitted to a modem in the system-on-chip through the second receiving end RX2_OUT and the third receiving end RX3_OUT for signal demodulation.

[0095] Through the above signal transmission process and reception process, the function of one-way transmission and three-way reception can be realized, and the wireless signal reception ability can be effectively improved.

[0096] The embodiment of the present application also provides a communication device. Refer to Figure 2 , Figure 2 which is a schematic structural diagram of a communication device provided by the embodiment of the present application. As Figure 2 shown, the communication device includes: the above ultra-wideband front-end module, and further includes: a system-on-chip WIFI&UWB SOC, a first antenna UWB_TR_ANT1, a second antenna UWB_R_ANT2, a third antenna UWB_R_ANT3, and a WIFI network device 500.

[0097] The first enabling terminal EN1 is electrically connected to the first terminal UWB_PA_EN of the system-on-chip WIFI&UWB SOC. The transmitting terminal TX_IN is electrically connected to the second terminal RF_UWB_TX of the system-on-chip WIFI&UWB SOC. The first receiving terminal RX1_OUT is electrically connected to the third terminal RF_UWB_RX1 of the system-on-chip WIFI&UWB SOC. The second receiving terminal RX2_OUT is electrically connected to the fourth terminal RF_UWB_RX2 of the system-on-chip WIFI&UWB SOC. The third receiving terminal RX3_OUT is electrically connected to the fifth terminal RF_UWB_RX3 of the system-on-chip WIFI&UWB SOC. The second enabling terminal EN2 is electrically connected to the sixth terminal UWB_LNA_EN of the system-on-chip WIFI&UWB SOC. The control terminal C1 is electrically connected to the seventh terminal UWB_TRX_CTL of the system-on-chip WIFI&UWB SOC.

[0098] The first antenna UWB_TR_ANT1 is electrically connected to the first antenna terminal ANT1.

[0099] The second antenna UWB_R_ANT2 is electrically connected to the second antenna terminal ANT2.

[0100] The third antenna UWB_R_ANT3 is electrically connected to the third antenna terminal ANT3.

[0101] The WIFI network device 500 is electrically connected to the system-on-chip WIFI&UWB SOC.

[0102] The system-on-chip WIFI&UWB SOC in the embodiments of the present application is a highly integrated chip that supports the transmission, reception, modulation, and demodulation of WIFI (Wireless Fidelity) signals and ultra-wideband (UWB) signals.

[0103] Among them, the first antenna UWB_TR_ANT1 can be used for the transmission and reception of ultra-wideband (UWB) signals, while the second antenna UWB_R_ANT2 and the third antenna UWB_R_ANT3 are only used for the reception of ultra-wideband (UWB) signals.

[0104] In a possible embodiment, refer to Figure 2 , such as Figure 2 shown, the WIFI network device 500 includes: a WIFI antenna, a combiner, a WIFI 2.4G front-end module, and a WIFI 5 / 6G front-end module.

[0105] The WIFI antenna is electrically connected to the third terminal of the combiner.

[0106] The first end of the combiner is electrically connected to the output end of the WIFI2.4G front-end module, and the second end of the combiner is electrically connected to the output end of the WIFI5 / 6G front-end module.

[0107] The transmitting end of the WIFI2.4G front-end module is electrically connected to the eighth terminal RF_WIFI2.4G_TX of the system-on-chip WIFI&UWB SOC, and the receiving end of the WIFI2.4G front-end module is electrically connected to the ninth terminal RF_WIFI2.4G_RX of the system-on-chip WIFI&UWB SOC.

[0108] The transmitting end of the WIFI5 / 6G front-end module is electrically connected to the tenth terminal RF_WIFI5 / 6G_TX of the system-on-chip WIFI&UWB SOC, and the receiving end of the WIFI5 / 6G front-end module is electrically connected to the eleventh terminal RF_WIFI5 / 6G_RX of the system-on-chip WIFI&UWB SOC.

[0109] The WIFI2.4G front-end module in the embodiment of the present application is a front-end module that supports the transmission and reception signal amplification of WIFI2.4G (i.e., a wireless local area network operating in the 2.4GHz frequency band). The WIFI5 / 6G front-end module is a front-end module that supports the transmission and reception signal amplification of WIFI5G network and WIFI6G network (i.e., a wireless local area network operating in the 5GHz frequency band or 6GHz frequency band). The WIFI5 / 6G front-end module includes a WIFI5G front-end module and a WIFI6G front-end module inside, and both the WIFI5G front-end module and the WIFI6G front-end module include corresponding low-noise amplifiers and power amplifiers inside.

[0110] The combiner is a low-temperature co-fired ceramic frequency divider that can separate the WIFI signal of WIFI2.4G and the WIFI signal of WIFI5 / 6G according to the frequency of the signal. The WIFI antenna can transmit or receive WIFI signals.

[0111] When the ultra-wideband front-end module is applied to a communication terminal product, there is usually interference with the existing communication system on the communication terminal product. For example, the communication device in this application includes an ultra-wideband front-end module and a WIFI network device, and there will be interference between the ultra-wideband front-end module and the WIFI network device during operation.

[0112] The communication system mainly includes a wireless wide-area network and a wireless local area network. Among them, the main operating frequency band of the wireless wide-area network is 600MHZ~5GHz, and the central frequency range covered by the ultra-wideband technology is approximately from 3.5GHZ~9.5GHZ. Therefore, the wireless wide-area network only shares the same frequency band with the low-frequency band of the ultra-wideband.

[0113] The ultra-wideband products in this application mainly involve the high-frequency band of ultra-wideband. For example, Channel 5, Channel 6, Channel 8, Channel 9, Channel 10, Channel 11, and Channel 12, with a frequency range of 6.2 GHz to 9.2 GHz. Therefore, when the ultra-wideband front-end module in this application coexists with a wireless wide-area network, signals in the frequency band below 5 GHz can be filtered out through the first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3, so as to achieve the coexistence of the ultra-wideband front-end module and the wireless wide-area network.

[0114] In this application, when the ultra-wideband front-end module coexists with a wireless local area network, in one example, the wireless local area network may include a WIFI 2.4G network, a WIFI 5G network, and a WIFI 6G network. Based on the above coexistence principle of the ultra-wideband front-end module and the wireless wide-area network, when the ultra-wideband front-end module coexists with the WIFI 2.4G network or the WIFI 5G network, signals in the frequency band below 5.9 GHz can also be filtered out through the first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3, so as to achieve the coexistence of the ultra-wideband front-end module and the WIFI 2.4G network or the WIFI 5G network.

[0115] The operating frequency range of the WIFI 6G network is 5.9 GHz to 7.2 GHz, which highly overlaps with the frequency range of 6.2 GHz to 9.2 GHz of the high-frequency band of ultra-wideband. It is impossible to achieve the coexistence of the ultra-wideband front-end module and the WIFI 6G network through the filtering function of the band-pass filter. For this reason, this application provides a control method, which is applied to the above communication device and realizes the coexistence of the ultra-wideband front-end module and the WIFI 6G network through time-division switching.

[0116] Specifically, the method includes: S1, when the first enable signal PA_EN is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, if the operating frequency band of the WIFI network device 500 is 5.9 GHz to 7.2 GHz, control the low-noise amplifier in the WIFI 5 / 6G front-end module to be in an off state.

[0117] When the radio frequency power amplifier PA in the ultra-wideband front-end module works, that is, when the first enable signal PA_EN is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, at this time, if the operating frequency band of the WIFI network device 500 is also 5.9 GHz to 7.2 GHz, the system-on-chip WIFI&UWB SOC issues a command to the WIFI5 / 6G front-end module to turn off the low-noise amplifier in its internal WIFI6G front-end module, that is, to control the enable signal of the low-noise amplifier in the WIFI6G front-end module to be at a low level, and the low-noise amplifier in the WIFI6G front-end module is in an off state.

[0118] Since the maximum transmission power of the ultra-wideband front-end module when transmitting a signal can reach more than 20 dBm, while the maximum tolerated power of the low-noise amplifier is 5 dBm, the low-noise amplifier in the WIFI6G front-end module will be damaged when the ultra-wideband front-end module transmits a signal. By controlling the low-noise amplifier in the WIFI6G front-end module to be in an off state, the low-noise amplifier in the WIFI6G front-end module can be protected from damage when the ultra-wideband front-end module transmits a high-power signal. Since the low-noise amplifier is used in the receiving state, when the low-noise amplifier in the WIFI6G front-end module is controlled to be in an off state, the WIFI5 / 6G front-end module can only work in the transmitting state, or in the transmitting or receiving state within the frequency band range of 2.4G and 5G.

[0119] S2. When the enable signal of the power amplifier in the WIFI5 / 6G front-end module is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, if the operating frequency band of the WIFI network device is 5.9 GHz to 7.2 GHz, control the second enable signal LNA_EN to be at a low level so that the low-noise amplification circuit is in an off state.

[0120] When the power amplifier in the WIFI6G front-end module inside the WIFI5 / 6G front-end module works, that is, when the enable signal of the power amplifier is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9 GHz to 7.2 GHz, at this time, if the operating frequency band of the WIFI network device 500 is also 5.9 GHz to 7.2 GHz, the system-on-chip WIFI&UWB SOC issues a command to turn off the low-noise amplification circuit in the ultra-wideband front-end module, that is, to control the second enable signal LNA_EN to be at a low level so that the low-noise amplification circuit in the ultra-wideband front-end module is in an off state.

[0121] Since the maximum transmission power of the WIFI5 / 6G front-end module can reach more than 20 dBm when transmitting signals, while the maximum tolerable power of the first low-noise amplifier LNA1, the second low-noise amplifier LNA2, and the third low-noise amplifier LNA3 is 5 dBm, the low-noise amplifier in the ultra-wideband front-end module will be damaged when the WIFI5 / 6G front-end module transmits signals. The low-noise amplification circuit in the ultra-wideband front-end module is controlled to be in the off state, so as to protect the low-noise amplifier in the ultra-wideband front-end module from being damaged when the WIFI5 / 6G front-end module transmits high-power signals. Since the low-noise amplification circuit is used in the receiving state, when the low-noise amplification circuit in the ultra-wideband front-end module is controlled to be in the off state, the ultra-wideband front-end module can only work in the transmitting state, or in the transmitting or receiving state in the frequency band range outside 5.9 GHz to 7.2 GHz.

[0122] Based on the above embodiments of the coexistence of the ultra-wideband front-end module with the wireless wide-area network and the wireless local-area network, signals in the frequency band below 5.9 GHz are filtered out by the first band-pass filter BPF1, the second band-pass filter BPF2, and the third band-pass filter BPF3, so as to realize the coexistence of the ultra-wideband front-end module with the wireless wide-area network, the WIFI2.4G network, and the WIFI5G network, physically reducing the problem of interference between the ultra-wideband product and the wireless wide-area network and the wireless local-area network coexisting on the same communication terminal product; and the coexistence of the ultra-wideband product with the WIFI6G network is realized through a software mechanism. Through the above coexistence mechanism, the ultra-wideband front-end module can be better integrated into the existing communication terminal products, and thus the diversity of the existing communication terminal products in terms of functions and usage scenarios can be realized.

[0123] Finally, it should be noted that the above embodiments are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An ultra-wideband front-end module, characterized in that: The ultra-wideband front-end module includes: a first power supply end, a second power supply end, a radio frequency power amplifier circuit, a low-noise amplifier circuit, a switch switching circuit and a filter circuit; The first power supply terminal is used to access a first power supply voltage to supply power to the radio frequency power amplifier circuit; The second power supply terminal is used to access a second power supply voltage to supply power to the low-noise amplifier circuit and the switch switching circuit; The RF power amplifier circuit is used to receive a first transmission signal, amplify the first transmission signal to obtain a second transmission signal, and transmit the second transmission signal to the switch circuit; The switch switching circuit is used to transmit the second transmission signal to the filtering circuit according to the channel control signal; The filtering circuit is used to filter the second transmission signal to obtain a third transmission signal, and transmit the third transmission signal; it is also used to receive a first reception signal, a second reception signal and a third reception signal, filter the first reception signal to obtain a first filtered signal, and transmit the first filtered signal to the switching circuit; filter the second reception signal and the third reception signal to obtain a second filtered signal and a third filtered signal, and transmit the second filtered signal and the third filtered signal to the low-noise amplifier circuit; The switch switching circuit is further used to transmit the first filtered signal to the low-noise amplifier circuit according to the channel control signal; The low-noise amplifier circuit is used to amplify the first filtered signal, the second filtered signal and the third filtered signal to obtain a first ultra-wideband received signal, a second ultra-wideband received signal and a third ultra-wideband received signal.

2. The ultra-wideband front-end module according to claim 1, characterized in that: The radio frequency power amplification circuit comprises: a radio frequency power amplifier, a first enabling terminal and a transmitting terminal; The radio frequency power amplifier is used to receive the first transmission signal connected to the transmitting end, and amplify the first transmission signal according to the first enable signal connected to the first enable end to obtain a second transmission signal.

3. The ultra-wideband front-end module according to claim 1, characterized in that: The switch switching circuit comprises: a single-pole double-throw switch and a control terminal; The common end of the single-pole double-throw switch is electrically connected to the filter circuit, the first end of the single-pole double-throw switch is electrically connected to the radio frequency power amplifier circuit, and the second end of the single-pole double-throw switch is electrically connected to the low-noise amplifier circuit; The single-pole double-throw switch is used to transmit the second transmission signal to the filtering circuit according to the channel control signal connected to the control end; and is also used to transmit the first filtering signal to the low-noise amplifier circuit.

4. The ultra-wideband front-end module according to claim 1, characterized in that: The filtering circuit comprises: a first band-pass filter, a second band-pass filter, a third band-pass filter, a first antenna terminal, a second antenna terminal and a third antenna terminal; The first bandpass filter is used to filter the second transmit signal to obtain a third transmit signal, and transmit the third transmit signal through the first antenna end; and is also used to receive the first receive signal using the first antenna end, filter the first receive signal to obtain the first filtered signal, and transmit the first filtered signal to the switch switching circuit; The second bandpass filter is used to receive the second received signal using the second antenna end, filter the second received signal to obtain a second filtered signal, and transmit the second filtered signal to the low-noise amplifier circuit; The third bandpass filter is used to receive the third received signal using the third antenna end, filter the third received signal to obtain a third filtered signal, and transmit the third filtered signal to the low-noise amplifier circuit.

5. The ultra-wideband front-end module according to claim 1, characterized in that: The low noise amplifier circuit comprises: a first low noise amplifier, a second low noise amplifier, a third low noise amplifier, a second enabling terminal, a first receiving terminal, a second receiving terminal and a third receiving terminal; The first low noise amplifier is used to amplify the first filtered signal according to the second enable signal connected to the second enable end to obtain a first ultra-wideband received signal, and transmit the first ultra-wideband received signal to the first receiving end; The second low noise amplifier is used to amplify the second filtered signal according to the second enable signal connected to the second enable end to obtain a second ultra-wideband received signal, and transmit the second ultra-wideband received signal to the second receiving end; The third low noise amplifier is used to amplify the third filtered signal according to the second enable signal connected to the second enable end to obtain a third ultra-wideband received signal, and transmit the third ultra-wideband received signal to the third receiving end.

6. The ultra-wideband front-end module according to claim 4, characterized in that: The bandwidths of the first band-pass filter, the second band-pass filter, and the third band-pass filter are all 6.2 GHZ to 9.2 GHZ.

7. The ultra-wideband front-end module according to claim 4, characterized in that: The out-of-band suppression of the first band-pass filter, the second band-pass filter, and the third band-pass filter are all greater than or equal to 30 dB, and the in-band insertion loss is all less than or equal to 1 dB.

8. A communication device, characterized in that: The communication device comprises: an ultra-wideband front-end module as claimed in any one of claims 1 to 7, and further comprises: a system-level chip, a first antenna, a second antenna, a third antenna and a WIFI network device; The first enabling terminal is electrically connected to the first terminal of the system-level chip, the transmitting terminal is electrically connected to the second terminal of the system-level chip, the first receiving terminal is electrically connected to the third terminal of the system-level chip, the second receiving terminal is electrically connected to the fourth terminal of the system-level chip, the third receiving terminal is electrically connected to the fifth terminal of the system-level chip, the second enabling terminal is electrically connected to the sixth terminal of the system-level chip, and the control terminal is electrically connected to the seventh terminal of the system-level chip; The first antenna is electrically connected to the first antenna end; The second antenna is electrically connected to the second antenna end; The third antenna is electrically connected to the third antenna end; The WIFI network device is electrically connected to the system-level chip.

9. The communication device according to claim 8, characterized in that The WIFI network equipment includes: a WIFI antenna, a combiner, a WIFI 2.4G front-end module and a WIFI 5 / 6G front-end module; The WIFI antenna is electrically connected to the third end of the combiner; The first end of the combiner is electrically connected to the output end of the WIFI2.4G front-end module, and the second end of the combiner is electrically connected to the output end of the WIFI5 / 6G front-end module; The transmitting end of the WIFI2.4G front-end module is electrically connected to the eighth end of the system-level chip, and the receiving end of the WIFI2.4G front-end module is electrically connected to the ninth end of the system-level chip; The transmitting end of the WIFI5 / 6G front-end module is electrically connected to the tenth end of the system-level chip, and the receiving end of the WIFI5 / 6G front-end module is electrically connected to the eleventh end of the system-level chip.

10. A control method, characterized in that: The method is applied to the communication device according to any one of claims 8 to 9, and the method includes: When the first enable signal is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9GHZ to 7.2GHZ, if the operating frequency band of the WIFI network device is 5.9GHZ to 7.2GHZ, the low noise amplifier in the WIFI5 / 6G front-end module is controlled to be in an off state; When the enable signal of the power amplifier in the WIFI5 / 6G front-end module is at a high level and the operating frequency band of the ultra-wideband front-end module is 5.9GHZ to 7.2GHZ, if the operating frequency band of the WIFI network device is 5.9GHZ to 7.2GHZ, the second enable signal is controlled to be at a low level so that the low-noise amplifier circuit is in an off state.

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