Radio frequency device, radio frequency system and electronic equipment

Abstract

The invention relates to a radio frequency device, a radio frequency system and communication equipment, and the radio frequency device is configured with a first transmitting port, a first receiving port and a second receiving port which are used for connecting a radio frequency transceiver, and a plurality of antenna ports which are used for connecting antennas. The radio frequency device comprises a first transmitting amplifying circuit, a first receiving amplifying circuit, a second receiving amplifying circuit and a first radio frequency switch, so that the radio frequency device can support transmitting and receiving of a first ultrahigh frequency band signal and receiving of a second ultrahigh frequency band. Therefore, the radio frequency device can realize the multi-band communication requirement of a 5G ultrahigh frequency band on the basis of realizing decoupling of a power amplifier, a low-noise amplifier and the like with a filter, and the radio frequency front-end cost is greatly reduced; meanwhile, the development of domestic radio frequency front-end devices is greatly promoted, and the passive situation of the domestic radio frequency front-end devices is improved.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a radio frequency device, a radio frequency system and an electronic device. Background Art

[0002] The current wireless communication network technology is developing rapidly, and the communication standard has been rapidly upgraded from 2G to higher bandwidth 3G / 4G / 5G. With the increase in bandwidth, the service content that can be brought to people is becoming more and more abundant, and the demand for multi-band communication is also increasing. For example, the dual-band communication requirements of N77 and N79, however, it also makes the cost of RF devices higher and higher. Summary of the invention

[0003] The embodiments of the present application provide a radio frequency device, a radio frequency system and an electronic device, which can reduce the cost of the radio frequency device.

[0004] In a first aspect, the present application provides a radio frequency device, which is configured with a first transmitting port, a first receiving port, a second receiving port for connecting to a radio frequency transceiver, and a plurality of antenna ports for connecting to an antenna, the radio frequency device comprising:

[0005] A first transmitting amplifying circuit, connected to the first transmitting port, and configured to amplify a first UHF frequency band signal received by the first transmitting port;

[0006] a first receiving amplifier circuit, connected to the first receiving port, for amplifying a first UHF band signal from the antenna port and outputting the signal to the RF transceiver via the first receiving port;

[0007] a second receiving amplifier circuit, connected to the second receiving port, for amplifying the second UHF band signal from the antenna port and outputting the signal to the RF transceiver via the second receiving port;

[0008] The first RF switch has multiple first ends and multiple second ends, the multiple first ends of the first RF switch are respectively connected to the multiple antenna ports, the multiple second ends of the first RF switch are respectively connected to the first transmitting amplifier circuit, the first receiving amplifier circuit, and the second receiving amplifier circuit, and the first RF switch is used to select and conduct the RF path between the first transmitting amplifier circuit, the first receiving amplifier circuit, the second receiving amplifier circuit and any antenna port, so that the first transmitting amplifier circuit supports the alternating transmission of the first ultra-high frequency band signal between the multiple antenna ports, and the first receiving amplifier circuit receives the first ultra-high frequency band signal and the second receiving amplifier circuit receives the second ultra-high frequency band signal.

[0009] A second aspect of the present application provides a radio frequency system, including:

[0010] Multiple antennas;

[0011] RF transceiver;

[0012] A radio frequency device as described above; and

[0013] A filter circuit, wherein the first ends of the filter circuit are respectively connected to the multiple antenna ports, the second ends of the filter circuit are respectively connected to the multiple antennas, and the filter circuit is used to filter the first ultra-high frequency band signal and the second ultra-high frequency band signal received.

[0014] A third aspect of the present application provides a radio frequency system, including:

[0015] Multiple antennas;

[0016] Radio frequency transceivers; and

[0017] A radio frequency device as described above.

[0018] A third aspect of the present application provides a communication device, comprising the radio frequency system as described above.

[0019] In the above-mentioned RF devices, RF systems and communication equipment, the RF devices are configured with a first transmitting port, a first receiving port, a second receiving port for connecting to the RF transceiver and multiple antenna ports for connecting to the antenna, and the RF devices include a first transmitting amplifier circuit, a first receiving amplifier circuit, a second receiving amplifier circuit and a first RF switch, so that the RF devices can support the transmission and reception of the first ultra-high frequency band signal and the reception of the second ultra-high frequency band. As a result, the RF devices can realize the multi-band communication requirements of the 5G ultra-high frequency band on the basis of realizing the decoupling of the power amplifier, low-noise amplifier and the filter, greatly reducing the cost of the RF front-end; at the same time, it is conducive to giving play to the technical advantages of domestic manufacturers in power amplifiers, low-noise amplifiers and other devices, so that more manufacturers can participate in the preparation of RF devices, greatly promoting the development of domestic RF front-end devices and improving the passive situation of domestic RF front-end devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1This is one of the structural block diagrams of a radio frequency device according to an embodiment;

[0022] Figure 2 This is a second structural block diagram of a radio frequency device according to an embodiment;

[0023] Figure 3 This is a third structural block diagram of a radio frequency device according to an embodiment;

[0024] Figure 4 This is a fourth structural block diagram of a radio frequency device according to an embodiment;

[0025] Figure 5 This is a fifth structural block diagram of a radio frequency device according to an embodiment;

[0026] Figure 6 This is a sixth structural block diagram of a radio frequency device according to an embodiment;

[0027] Figure 7 This is a seventh structural block diagram of a radio frequency device according to an embodiment;

[0028] Figure 8 This is an eighth structural block diagram of a radio frequency device according to an embodiment;

[0029] Fig. 9 A ninth structural block diagram of a radio frequency device according to an embodiment;

[0030] Fig.10 It is a structural block diagram of a communication device in one embodiment. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0034] At present, RF devices that support the multi-band communication needs of 5G ultra-high frequency bands are mainly provided by overseas manufacturers. These manufacturers usually integrate and bundle out-of-band high-suppression filters with power amplifiers, low-noise amplifiers, etc. and then sell them at high prices. The high selling price of RF devices has greatly increased the RF front-end costs of domestic communication equipment manufacturers. At the same time, the integrated bundling of such filters with power amplifiers, low-noise amplifiers, etc. has also hindered domestic RF device manufacturers from participating in the preparation of such RF devices.

[0035] Based on this, the present application provides a radio frequency device, a radio frequency system and communication equipment, which realize the multi-band communication requirements of radio frequency devices on the basis of decoupling power amplifiers, low-noise amplifiers, etc. from filters, give full play to the advantages of domestic manufacturers in power amplifiers, low-noise amplifiers and other devices, and at the same time enable more manufacturers to participate in the preparation of radio frequency devices, greatly reducing the production cost of radio frequency devices.

[0036] The radio frequency device involved in the embodiment of the present application can be applied to a communication device with a wireless communication function, and the communication device can be a handheld device, a vehicle-mounted device, a smart car device, a wearable device, a computing device, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE) (e.g., a mobile phone), a mobile station (MS), etc. For the convenience of description, the above-mentioned devices are collectively referred to as communication devices.

[0037] Figure 1 is a structural block diagram of a radio frequency device 10 according to an embodiment, Figure 1 In this embodiment, the RF device 10 is configured with a first transmitting port (such as Tx In1 in the figure) for connecting to the RF transceiver, a first receiving port (such as Rx Out1 in the figure), a second receiving port (such as Rx Out2 in the figure), and a plurality of antenna ports (such as ANT0, ANT1, etc. in the figure, which are for illustration only and not limiting) for connecting to the antenna.

[0038] The RF device 10 can be understood as a packaging structure configured with multiple ports. The first transmitting port, the first receiving port, the second receiving port, and the multiple antenna ports can be understood as the RF pin terminals of the RF device 10, which are used to connect with the internal devices and external devices of the RF device 10 to transmit signals. Specifically, the first transmitting port can be used to connect with the RF transceiver to transmit the first UHF band signal from the RF transceiver to the inside of the RF device 10, so that the RF device 10 supports one-way transmission; the first receiving port and the second receiving port are respectively used to connect with the RF transceiver to transmit the first UHF band signal and the second UHF band signal received by the RF device 10 to the RF transceiver, so that the RF device 10 supports multi-channel reception; multiple antenna ports are used to connect with the antenna to transmit the RF signal between the antenna and the RF device 10.

[0039] Please continue to refer to Figure 1 In this embodiment, the RF device 10 includes: a first RF switch 100 , a first transmitting amplifier circuit 200 , a first receiving amplifier circuit 300 and a second receiving amplifier circuit 400 .

[0040] The first transmitting amplifier circuit 200 is connected to the first transmitting port and is used to amplify the first UHF band signal received by the first transmitting port; the first receiving amplifier circuit 300 is connected to the first receiving port and is used to amplify the first UHF band signal from the antenna port and output it to the RF transceiver through the first receiving port; the second receiving amplifier circuit 400 is connected to the second receiving port and is used to amplify the second UHF band signal from the antenna port and output it to the RF transceiver through the second receiving port; the first RF switch 100 has a plurality of first ends and a plurality of second ends, and the plurality of first ends of the first RF switch 100 are respectively connected to the plurality of antenna ports. The first RF switch 100 is connected to the first transmitting amplifier circuit 200, the first receiving amplifier circuit 300, and the second receiving amplifier circuit 400 respectively. The first RF switch 100 is used to select and conduct the RF path between the first transmitting amplifier circuit 200, the first receiving amplifier circuit 300, the second receiving amplifier circuit 400 and any antenna port, so that the first transmitting amplifier circuit 200 supports the first ultra-high frequency band signal to be transmitted alternately between the multiple antenna ports, and the first receiving amplifier circuit 300 receives the first ultra-high frequency band signal and the second receiving amplifier circuit 400 receives the second ultra-high frequency band signal.

[0041] Among them, the first RF switch 100 is respectively connected to multiple antenna ports, the first transmitting amplifier circuit 200, the first receiving amplifier circuit 300, and the second receiving amplifier circuit 400. The first RF switch 100 can respectively select to conduct the RF path between the first transmitting amplifier circuit 200, the first receiving amplifier circuit 300, the second receiving amplifier circuit 400 and any antenna port, so that the first transmitting amplifier circuit 200 supports the first ultra-high frequency band signal to be transmitted alternately between multiple antenna ports, thereby supporting the sounding reference signal (SRS) function of the first ultra-high frequency band; and the first receiving amplifier circuit 300 receives the first ultra-high frequency band signal, and the second receiving amplifier circuit 400 receives the second ultra-high frequency band signal. Optionally, based on the number of antenna ports, the number of amplification modules, and the number of receiving modules, the first RF switch 100 can select one or more multi-channel selection switches to realize the gating function of the RF path between the first transmitting amplifier circuit 200, the first receiving amplifier circuit 300, the second receiving amplifier circuit 400 and any antenna port.

[0042] Among them, the first transmitting amplifier circuit 200 is used to perform power amplification processing on the first ultra-high frequency band signal to be transmitted, so that the RF device 10 supports the transmission processing of the first ultra-high frequency band signal. Further, the first transmitting amplifier circuit 200 includes a power amplifier (Power amplifier, PA), each power amplifier is connected to the RF transceiver through a transmitting port to receive the signal to be transmitted from the RF transceiver, and is connected to the antenna port through the first RF switch 100 to transmit and transmit the signal to be transmitted after power amplification through the antenna port.

[0043] Among them, the first receiving amplifier circuit 300 and the second receiving amplifier circuit 400 are respectively used to perform power amplification processing on the received first ultra-high frequency band signal and the second ultra-high frequency band signal, so that the RF device 10 supports multi-channel receiving processing of the first ultra-high frequency band signal and the second ultra-high frequency band signal. Further, the first receiving amplifier circuit 300 and the second receiving amplifier circuit 400 respectively include a low noise amplifier (Low Noise Amplifier, LNA), each low noise amplifier is connected to the antenna port through the first RF switch 100 to receive the signal to be received from the antenna, and is connected to the RF transceiver through the receiving port to transmit the signal to be received after the low noise amplification processing to the RF transceiver through the receiving port.

[0044] Among them, the first ultra-high frequency band signal and the second ultra-high frequency band signal are ultra-high frequency band signals of different frequency bands in the 5G RF signal. Optionally, the first ultra-high frequency band signal is an N77 / N78 band signal, and the second ultra-high frequency band signal is an N79 band signal. Therefore, the RF device 10 is a multi-frequency multi-mode amplifier module that can support N77 / N78 and N79, and can also be understood as an L-PAM module (LNA and PA Module, a module integrating LNA, PA and switch).

[0045] In the related art, among the RF devices supporting the multi-band communication requirements of the 5G ultra-high frequency band, taking the N77 and N79 dual-band RF devices as examples, the N77 transmission channel is composed of an N77 power amplifier and an N77 transmission filter, the N79 transmission channel is composed of an N79 power amplifier and an N79 transmission filter, each N77 receiving channel is composed of a low noise amplifier and an N77 receiving filter, and each N79 receiving channel is composed of a low noise amplifier and an N79 receiving filter. That is, the RF devices supporting the multi-band communication requirements of the 5G ultra-high frequency band in the related art usually integrate and bind the filter with the power amplifier, the low noise amplifier, etc. to form an L-PAMiF (LNA and PA Module integrated with Filter, a module integrating LNA, PA, filter and switch) RF device, which is expensive, greatly increasing the RF front-end cost of domestic communication equipment manufacturers, and at the same time, the integrated binding method of the filter with the power amplifier, the low noise amplifier, etc. also hinders domestic RF device manufacturers from participating in the preparation of the RF device, resulting in a passive situation for domestic RF front-end devices.

[0046] The RF device 10 provided in this embodiment is configured with a first transmitting port, a first receiving port, a second receiving port for connecting to the RF transceiver, and multiple antenna ports for connecting to the antenna. The RF device 10 includes a first RF switch 100, a first transmitting amplifier circuit 200, a first receiving amplifier circuit 300, and a second receiving amplifier circuit 400, so that the RF device 10 can support the transmission and reception of the first ultra-high frequency band signal and the reception of the second ultra-high frequency band, and realize the multi-band communication requirements. Therefore, the RF device 10 can realize the multi-band communication requirements of the 5G ultra-high frequency band on the basis of realizing the decoupling of the power amplifier, low-noise amplifier, etc. from the filter, greatly reducing the cost of the RF front-end; at the same time, the current domestic technical fields such as power amplifiers, low-noise amplifiers, switches, etc. are already very mature, and the aforementioned decoupling method is conducive to giving play to the technical advantages of domestic manufacturers in power amplifiers, low-noise amplifiers and other devices, so that more manufacturers can participate in the preparation of the RF device 10, greatly promoting the development of domestic RF front-end devices and improving the passive situation of domestic RF front-end devices.

[0047] In one embodiment, if Figure 2 As shown, the first receiving amplifier circuit 300 includes a plurality of first low noise amplifiers ( Figure 2 Taking two first low noise amplifiers 310 as an example), the input end of each first low noise amplifier is connected to a second end of the first RF switch 100, and the output end of each first low noise amplifier is connected to a first receiving port. The first receiving amplifier circuit 300 is used to support multi-channel reception of a first ultra-high frequency band signal; the second receiving amplifier circuit 400 includes a plurality of second low noise amplifiers ( Figure 2 Taking two second low noise amplifiers 320 as an example), the input end of each second low noise amplifier is connected to a second end of the first RF switch 100, and the output end of each second low noise amplifier is connected to a second receiving port. The second receiving amplifier circuit 400 is used to support multi-channel reception of the second ultra-high frequency band signal.

[0048] Among them, the first RF switch 100 is respectively connected to multiple antenna ports, the first transmitting amplifier circuit 200, multiple first low noise amplifiers, and multiple second low noise amplifiers. The first RF switch 100 can respectively choose to turn on the RF path between the first transmitting amplifier circuit 200, multiple first low noise amplifiers, multiple second low noise amplifiers and any antenna port, so that the first receiving amplifier circuit 300 supports multi-channel reception of the first ultra-high frequency band signal, and the second receiving amplifier circuit 400 supports multi-channel reception of the second ultra-high frequency band signal, so that the RF device 10 supports one-way transmission and multi-channel reception to realize transmission control and reception control of different signals.

[0049] In one embodiment, if Figure 3 As shown, the multiple antenna ports include multiple first antenna ports and multiple second antenna ports ( Figure 3 In the figure, the first receiving amplifier circuit 300 includes two first low-noise amplifiers, the second receiving amplifier circuit 400 includes two second low-noise amplifiers, and the first antenna port supports the transmission and reception of N77 RF signals, and the second antenna port supports the transmission and reception of N79 RF signals. In the figure, the first antenna port is respectively illustrated by N77 ANT0, N77 ANT1, etc., and the second antenna port is respectively illustrated by N79 ANT0, N79 ANT1, etc.), and the first RF switch 100 includes: a first switch unit 110 and a second switch unit 120.

[0050] The first switch unit 110 has multiple first ends and multiple second ends. The multiple first ends of the first switch unit 110 are respectively connected to the multiple first antenna ports, and some of the second ends of the first switch unit 110 are respectively connected to the output end of the first transmitting amplifier circuit 200 and the input ends of multiple first low-noise amplifiers; the first switch unit 110 is used to select and conduct the radio frequency path between the first transmitting amplifier circuit 200 and any first antenna port; the first switch unit 110 is also used to select and conduct the radio frequency path between each first low-noise amplifier and a first antenna port.

[0051] Among them, the first switch unit 110 is respectively connected to the input ends of the multiple first antenna ports, the first transmit amplifier circuit 200 and the multiple first low noise amplifiers. The first switch unit 110 can select to conduct the radio frequency path between the first transmit amplifier circuit 200 and any first antenna port to support the first ultra-high frequency band signal to be transmitted alternately between the multiple first antenna ports, thereby supporting the sounding reference signal SRS function of the first ultra-high frequency band; the first switch unit 110 can also select to conduct the radio frequency path between each first low noise amplifier and a first antenna port, so that the multiple first low noise amplifiers support multi-channel reception processing of the first ultra-high frequency band signal. Optionally, the first switch unit 110 can be an nPnT switch. For example, the first switch unit 110 can be a 3P4T switch. In the embodiment of the present application, n can be adjusted and set according to the number of the multiple first antenna ports and the number of the multiple first low noise amplifiers. No further limitation is made here.

[0052] The second switch unit 120 has multiple first ends and multiple second ends. The multiple first ends of the second switch unit 120 are respectively connected to the multiple second antenna ports, and some of the second ends of the second switch unit 120 are respectively connected to the input ends of the multiple second low noise amplifiers. The second switch unit 120 is used to select and conduct the radio frequency path between each second low noise amplifier and a second antenna port, so that each second low noise amplifier receives the second ultra-high frequency band signal from the second antenna port.

[0053] The second switch unit 120 is respectively connected to the plurality of second antenna ports and the plurality of second low noise amplifiers, and the second switch unit 120 can selectively conduct the RF path between each second low noise amplifier and any second antenna port, so that the second receiving amplifier circuit 400 supports multi-channel receiving and processing of the second ultra-high frequency band signal. Optionally, the second switch unit 120 can be an mPmT switch, and illustratively, the second switch unit 120 can be a 3P3T switch. In the embodiment of the present application, m can be adjusted according to the number of the plurality of second antenna ports and the number of the plurality of second low noise amplifiers, and no further limitation is made here.

[0054] This embodiment sets a first switch unit 110 corresponding to the first transmitting amplification circuit 200, multiple first low-noise amplifiers, and multiple first antenna ports, and a second switch unit 120 corresponding to multiple second low-noise amplifiers and multiple second antenna ports, so as to independently control the transmission channel of each ultra-high frequency band signal, the conduction state of the connection between multiple receiving channels and the target antenna port, and more accurately switch the antenna port and the RF channel.

[0055] In one embodiment, if Figure 4 As shown, the RF device 10 is also configured with a first-round transmit input port (such as SRS-In1 in the figure), which is connected to the other second end of the first switch unit 110. The first-round transmit input port is used to connect to an external circuit to receive a third ultra-high frequency band signal transmitted by the external circuit. The frequency band of the third ultra-high frequency band signal is the same as the frequency band of the first ultra-high frequency band signal.

[0056] Among them, the first round of transmission input port is respectively connected to the first switch unit 110 and the external circuit to receive the third ultra-high frequency band signal after amplification and processing by the external circuit, so that the RF device 10 can further realize two-way transmission of the first ultra-high frequency band signal and the third ultra-high frequency band signal and multi-channel reception of the first ultra-high frequency band signal, further improving the RF transmission performance of the RF device 10.

[0057] Furthermore, the first switch unit 110 is also connected to the first round transmitting port, and the first switch unit 110 is also used to select the RF path between the first round transmitting input port and any first antenna port, so that the first round transmitting input port supports the alternating transmission of the third ultra-high frequency band signal between multiple first antenna ports, further optimizing the SRS function of the RF device 10 to support the first ultra-high frequency band and the third ultra-high frequency band signals.

[0058] The first switch unit 110 of the present embodiment is respectively connected to the first round transmitting port, the first transmitting amplifying circuit 200, multiple first low noise amplifiers and multiple first antenna ports. The gating function of the first switch unit 110 realizes the multi-channel SRS function of the first ultra-high frequency band signal and the third ultra-high frequency band signal, the multi-channel receiving function of the first ultra-high frequency band signal and the channel switching control function, thereby improving the RF performance of the RF device 10; at the same time, each first antenna port can be switchably connected to different modules and ports, thereby further improving the utilization rate of each first antenna port, which is beneficial to reducing costs and improving the integration of devices.

[0059] For example, the number of the first low noise amplifiers is two; the plurality of first antenna ports include two first rotating antenna ports and two first non-rotating antenna ports (please continue to refer to Figure 4 , Figure 4 Taking this as an example, in the figure, N77 SRS-out1 and N77 SRS-out2 are two first round-radiating antenna ports respectively, and N77 ANT0 and N77 ANT1 are two first non-round-radiating antenna ports respectively). Each first round-radiating antenna port can be switchably connected to the first transmitting amplifier circuit 200 and the first round-radiating input port, and each first non-round-radiating antenna port can be switchably connected to the first transmitting amplifier circuit 200, the first round-radiating input port and a first low-noise amplifier.

[0060] The first round-radiation antenna port can be understood as an antenna port for supporting the transmission of the first UHF band signal and the third UHF band signal. The antenna port is switchably connected to the first transmitting amplifier circuit 200 and the first round-radiation input port to realize the SRS function of the first UHF band signal and the third UHF band signal; the first non-round-radiation antenna port can be understood as an antenna port for supporting the transmission and reception of the first UHF band signal and the third UHF band signal. The antenna port is switchably connected to the first transmitting amplifier circuit 200, the first round-radiation input port and a first low noise amplifier to realize the transmission of the first UHF band signal and the third UHF band signal and the reception of the first UHF band signal. Therefore, the first round-radiation antenna port and the first non-round-radiation antenna port can be switchably connected to different circuits and ports, thereby improving the utilization of the first round-radiation antenna port and the first non-round-radiation antenna port, reducing costs and improving the integration of devices.

[0061] In one embodiment, if Figure 4 As shown, the RF device 10 is also configured with a second round transmit input port (such as SRS-In2 in the figure), which is connected to the other second end of the second switch unit 120. The second round transmit input port is used to connect to an external circuit to receive a fourth ultra-high frequency band signal transmitted by the external circuit. The frequency band of the fourth ultra-high frequency band signal is the same as the frequency band of the second ultra-high frequency band signal.

[0062] Among them, the second round of transmission input port is respectively connected to the second switch unit 120 and the external circuit to receive the fourth ultra-high frequency band signal after amplification and processing by the external circuit, so that the RF device 10 can further realize the transmission of the second ultra-high frequency band signal and the fourth ultra-high frequency band signal and the multi-channel reception of the second ultra-high frequency band signal, thereby further improving the RF transmission performance of the RF device 10.

[0063] Furthermore, the second switch unit 120 is also connected to the second transmitting port, and the second switch unit 120 is also used to select the RF path between the second transmitting input port and any second antenna port, so that the second transmitting input port supports the fourth ultra-high frequency band signal to be transmitted alternately between multiple second antenna ports, further optimizing the SRS function of the RF device 10 to support the second ultra-high frequency band and the fourth ultra-high frequency band signals.

[0064] The second switch unit 120 of the present embodiment is respectively connected to the second round transmitting port, multiple second low noise amplifiers and multiple second antenna ports. The SRS function of the second ultra-high frequency band signal and the fourth ultra-high frequency band signal of the RF device 10, the multi-channel receiving function and the channel switching control function of the second ultra-high frequency band signal are realized through the gating function of the second switch unit 120, thereby improving the RF performance of the RF device 10; at the same time, each second antenna port can be switchably connected to different circuits and ports, thereby further improving the utilization rate of each second antenna port, which is beneficial to reducing costs and improving the integration of devices.

[0065] In one embodiment, if Figure 5 As shown, the RF device 10 is further configured with a second transmitting port (such as Tx In2 in the figure) for connecting to the RF transceiver, and the RF device further includes: a second transmitting amplification circuit 500 .

[0066] The second transmitting amplifier circuit 500 is respectively connected to the second transmitting port and the other second end of the second switch unit 120, and is used to amplify the second ultra-high frequency band signal received by the second transmitting port; wherein the second switch unit 120 is also used to select and conduct the RF path between the second transmitting amplifier circuit 500 and any second antenna port.

[0067] Among them, the second transmitting amplifier circuit 500 is used to perform power amplification processing on the second UHF band signal to be transmitted, so that the RF device 10 supports two-way transmission processing of the first UHF band signal and the second UHF band signal. Further, the second transmitting amplifier circuit 500 includes a power amplifier, each power amplifier is connected to the RF transceiver through the second transmitting port to receive the signal to be transmitted from the RF transceiver, and is connected to the antenna port through the first RF switch 100 to transmit and rotate the signal to be transmitted after power amplification through the antenna port.

[0068] In this embodiment, by providing the first transmitting amplifier circuit 200 and the second transmitting amplifier circuit 500 , the RF device 10 can implement two-way transmission and multi-channel reception of UHF band signals, thereby improving the RF function of the RF device 10 .

[0069] In one embodiment, the RF device 10 is further configured with a power port, which is respectively connected to the power supply terminal of the first transmit amplifier circuit 200 and the power supply terminal of the second transmit amplifier circuit 500, and the power port is used to connect to an external power supply so that the power supply supplies power to the first transmit amplifier circuit 200 and the second transmit amplifier circuit 500. In this embodiment, the normal operation of the first transmit amplifier circuit 200 and the second transmit amplifier circuit 500 can be ensured by setting the power port, thereby ensuring the stability and reliability of the overall operation of the RF device 10.

[0070] In one embodiment, if Figure 6 As shown, the RF device 10 is also configured with an auxiliary input port (such as LAA In in the figure), which is used to connect to an external auxiliary receiving amplifier circuit to receive a RF signal received by an external auxiliary receiving module. The RF signal can be a first UHF band signal and / or a second UHF band signal, or other RF signals other than the above two signals, thereby allowing the RF device 10 to add a receiving processing function and improve the RF receiving performance.

[0071] Further, on the basis that the RF device 10 is also configured with an auxiliary input port, please continue to refer to Figure 6 The RF device 10 also includes: a second RF switch 600 .

[0072] The second RF switch 600, the first end of the second RF switch 600 is connected to the target receiving port, and the multiple second ends of the second RF switch 600 are respectively connected to the auxiliary input port and the target low noise amplifier. The second RF switch 600 is used to conduct the connection between the target low noise amplifier and the target receiving port, or conduct the connection between the auxiliary input port and the target receiving port.

[0073] The target receiving port may be the first receiving port and / or the second receiving port to realize multiplexing of the first receiving port or the second receiving port, improve the effective utilization rate of the port and the integration of the port, and reduce the cost. Optionally, the target receiving port is the first receiving port, and the target low noise amplifier is the first low noise amplifier; and / or the target receiving port is the second receiving port, and the target low noise amplifier is the second low noise amplifier (this is illustrated in the figure as an example).

[0074] Among them, the second RF switch 600 is respectively connected to the target receiving port, the auxiliary input port, and the target low noise amplifier. The second RF switch 600 can choose to conduct the connection between the target low noise amplifier and the target receiving port, so that the target receiving port transmits the first ultra-high frequency band signal or the second ultra-high frequency band signal received and processed by the target low noise amplifier, or conducts the connection between the auxiliary input port and the target receiving port, so that the target receiving port receives the RF signal from the external auxiliary receiving amplification circuit. Optionally, the second RF switch 600 can be an SPnT switch. For example, the target receiving port is the first receiving port, the target low noise amplifier is the first low noise amplifier, and the second RF switch 600 can be an SP2T switch. In the embodiment of the present application, n can be adjusted according to the number of target receiving ports, and no further limitation is made here.

[0075] In this embodiment, by setting a second RF switch 600 corresponding to the target receiving port, the auxiliary input port, and the target low-noise amplifier, the target low-noise amplifier and the external auxiliary receiving amplifier circuit can reuse the same receiving port, thereby improving the effective utilization rate of the port and the integration of the port, and reducing the cost; at the same time, when the target receiving port is used to connect to a receiving port of the RF transceiver, the multiplexing of the target receiving port also improves the effective utilization rate of the receiving port of the RF transceiver and the integration of the port of the RF transceiver, thereby reducing the cost of the RF transceiver.

[0076] In one embodiment, if Figure 7 As shown, the radio frequency device 10 further includes: a first coupling circuit 700 .

[0077] The first coupling circuit 700 is arranged on the transmission channel between the first transmitting amplifier circuit 200 and the first RF switch 100, and is used to couple the first ultra-high frequency band signal amplified by the first transmitting amplifier circuit 200 to obtain a first coupling signal; wherein the RF device 10 is also configured with a coupling output port (such as CPL-OUT in the figure), and the coupling output port can be conductively connected to the first coupling circuit 700, and the coupling output port is used to connect to the RF transceiver to transmit the first coupling signal of the conductively connected first coupling circuit 700 to the RF transceiver.

[0078] Specifically, the first coupling circuit 700 includes an input end, an output end, and a coupling end. The input end of the first coupling circuit 700 is connected to the first transmitting amplifier circuit 200, and the output end of the first coupling circuit 700 is connected to a second end of the first RF switch 100. The coupling end of the first coupling circuit 700 is used to couple the first UHF band signal received by the input end and output the first coupling signal. The first coupling signal may include a first forward coupling signal and a first reverse coupling signal. The first forward coupling signal is used to measure the forward coupling power of the first UHF band signal and the second UHF band signal; the first reverse coupling signal is used to measure the reverse coupling power of the first UHF band signal.

[0079] In one of the embodiments, please refer to Figure 7 The radio frequency device 10 is also configured with an auxiliary coupling input port (such as CPL-IN in the figure), and the auxiliary coupling input port is used to connect to an external coupling circuit to receive a second coupling signal obtained by the coupling circuit.

[0080] The external coupling circuit may couple the target RF signal to obtain a second coupling signal, and the target RF signal may be at least one of the first UHF band signal and the second UHF band signal, or may be other RF signals. The second coupling signal may include a second forward coupling signal and a second reverse coupling signal, and the second forward coupling signal and the second reverse coupling signal correspond to the forward coupling power and the reverse coupling power used to measure the target RF signal, respectively, so that the RF transceiver can realize the relevant power detection function and adjust the output power of the power amplifier circuit connected to the external coupling circuit.

[0081] Further, based on the above embodiments, please continue to refer to Figure 7 The RF device 10 also includes: a third RF switch 800 .

[0082] The first end of the third RF switch 800 is connected to the coupling output port, and the two second ends of the third RF switch 800 are respectively connected to the first coupling circuit 700 and the auxiliary coupling input port. The third RF switch 800 is used to select the connection between the target coupling circuit and the coupling output port. The target coupling circuit includes any one of the first coupling circuit 700 and the external coupling circuit.

[0083] The third RF switch 800 is respectively connected to the coupling end, the auxiliary coupling input port and the coupling output port of the first coupling circuit 700, and is used to selectively output the coupling signal to the coupling output port or input the second coupling signal of the external coupling circuit from the coupling input port. It can be understood that when the RF device 10 is applied to the RF system, if multiple RF devices are provided in the RF system, the distance between the multiple RF devices is usually small, while the distance between the RF device and the RF transceiver is large. Therefore, an auxiliary coupling input port in this embodiment can obtain the second coupling signal of the external coupling circuit and transmit it, thereby realizing the transfer of the RF signal through the RF device 10, thereby reducing the number of wirings between the external coupling circuit and the RF transceiver, and realizing the same coupling signal transmission function with a smaller number of wirings, so as to further improve the integration of the RF system.

[0084] In this embodiment, the RF device 10 is only provided with one coupling output port. Since the RF signals of multiple frequency bands are not transmitted simultaneously, one coupling output port can also meet the communication requirements, improve the effective utilization rate of the port, and reduce the complexity of the RF routing inside the RF device 10. At the same time, it can also improve the isolation performance of each routing of the RF device 10.

[0085] In one of the embodiments, on the basis that the RF device 10 includes a second transmit amplifier circuit 500, the RF device 10 may further include a second coupling circuit, which is arranged on the transmit channel between the second transmit amplifier circuit 500 and the first RF switch 100, and is used to couple the second ultra-high frequency band signal after amplification by the second transmit amplifier circuit 500 to obtain a second coupled signal.

[0086] The second coupling circuit includes an input end, an output end, and a coupling end. The input end of the second coupling circuit is connected to the second transmitting amplifier circuit 500, and the output end of the second coupling circuit is connected to a second end of the first RF switch 100. The coupling end of the second coupling circuit is used to couple the second UHF band signal received by the input end and output a second coupling signal. The second coupling signal may include a second forward coupling signal and a second reverse coupling signal. The second forward coupling signal is used to measure the forward coupling power of the second UHF band signal; the second reverse coupling signal is used to measure the reverse coupling power of the second UHF band signal.

[0087] The RF device 10 is further configured with a coupling output port, which can be switchably connected to the first coupling circuit 700 and the second coupling circuit 800, and the coupling output port is used to connect to the RF transceiver to transmit the received first coupling signal or the second coupling signal to the RF transceiver, thereby, the RF transceiver can perform the related detection functions of the forward coupling power and the reverse coupling power of the two RF signals according to the first coupling signal or the second coupling signal transmitted by the coupling output port, thereby realizing the adjustment of the output power of the first transmitting amplifier circuit 200 and the second transmitting amplifier circuit 500. It can be understood that the coupling output port can be connected to the first coupling circuit 700 and the second coupling circuit respectively through the switch module, so as to realize the switchable connection between the first coupling circuit and the second coupling circuit through the on-off state of the switch module.

[0088] In this embodiment, by providing the first coupling circuit 700, the second coupling circuit and the coupling output port switchably connected to the two coupling circuits, on the one hand, the RF transceiver can receive any one of the first coupling signal and the second coupling signal, thereby realizing the related detection function of the forward coupling power and the reverse coupling power of the two RF signals; on the other hand, the effective utilization rate of the coupling output port and the integration of the port can be improved, thereby reducing the cost; at the same time, the multiplexing of the coupling output port also improves the effective utilization rate of a power detection port of the RF transceiver and the integration of the port of the RF transceiver, thereby reducing the cost of the RF transceiver.

[0089] In one embodiment, based on any of the above embodiments, Figure 8 As shown, the radio frequency device also includes: a filter circuit 900 ( Figure 8 by Figure 7 The examples are used as an example).

[0090] The filter circuit 900 has multiple first ends connected to the multiple second ends of the first RF switch 100, and multiple second ends of the filter circuit 900 are connected to the multiple antenna ports. The filter circuit 900 is used to filter the received first ultra-high frequency band signal and the second ultra-high frequency band signal.

[0091] Among them, the filter circuit 900 is respectively connected to the first RF switch 100 and multiple antenna ports. The filter circuit 900 can be used to filter the first ultra-high frequency band signal and the second ultra-high frequency band signal to be transmitted output by each transmitting amplifier circuit, and output them to each antenna port; the filter circuit 900 can also be used to filter the first ultra-high frequency band signal and the second ultra-high frequency band signal received by each antenna port, and output them to each receiving amplifier circuit.

[0092] Optionally, the filtering circuit 900 may include multiple independent filters, and the transmitting filter and the receiving filter are respectively located on each transmitting channel and each receiving channel to independently filter the RF signal to be transmitted and the RF signal received by the antenna port.

[0093] Optionally, the filter circuit 900 may also include a plurality of duplexers or multiplexers, each targeting a target frequency band, and the plurality of first ends of each duplexer or multiplexer are respectively connected to a power amplifier and a low noise amplifier through the second end of the first RF switch 100, and the second end of each duplexer or multiplexer is connected to an antenna port. The filter circuit 900 can not only filter the RF signal amplified by each power amplifier to output the RF signal after power amplification and filtering to the antenna port, but also filter the RF signal received by the antenna port, and the RF signal after filtering is amplified by each low noise amplifier and then output to the receiving port. Thus, the filter circuit 900 has the filtering function of both the transmitting and receiving processes, and can improve the isolation effect of the transceiver path and the output power of the transceiver path.

[0094] It can be understood that after decoupling each power amplifier, each low noise amplifier and the filter circuit 900 is achieved in any of the above embodiments, it is not only beneficial to reduce the cost of the RF front-end and improve the passive situation of domestic RF front-end devices, but also, when the filter circuit 900 needs to be set, the setting position, selection specifications, device type, etc. of the filter circuit 900 can be made more flexible and variable. For example, when the filter circuit 900 is set to filter the first ultra-high frequency band signal and the second ultra-high frequency band signal, the filter circuit 900 can be set on the antenna port side inside the RF device 10 (as shown in the above embodiment), or it can be set outside the RF device 10; at the same time, the non-binding integration of the filter allows each manufacturer to select filters of different specifications according to the needs of their respective products, making the design of the RF device 10 more flexible and adaptable to more communication scenarios. For example, products with low coexistence requirements can use ordinary LTCC filters with low out-of-band suppression to reduce costs while adapting to product requirements. In the binding integration method in the related art, the position of the filter is limited, and the specifications of the filter are often fixed to high-suppression filters. When the high-suppression filters are applied to products with low coexistence requirements, not only is the cost high, but it also causes a waste of filtering resources.

[0095] It can be understood that in order to realize the transmission and reception control of any of the above embodiments, Fig. 9As shown, the RF device 10 may further include a first control module 1100 and a second control module 1200. The first control module 1100 may be connected to each switch unit and each transmitting amplifier circuit, for example, the first switch unit 110, the second switch unit 120, the first transmitting amplifier circuit 200, and the second transmitting amplifier circuit 500, respectively, to control the on and off of each switch unit, and also to control the working state of each power amplifier module, so as to realize the transmission control of the RF device 10. The second control module 1200 may be connected to each switch unit and each receiving amplifier circuit, and may be used to adjust the working state and gain coefficient of each receiving module, thereby adjusting the link loss of each receiving channel, thereby improving the sensitivity of each receiving channel, so as to realize the reception control of the RF device 10. The first control module 1100 and the second control module 1200 may be a mobile industry processor interface (MIPI)-RF front end control interface (RF Front End Control Interface, RFFE) control module, or a RF front end control interface (RF Front End Control Interface, RFFE) control module, which complies with the control protocol of the RFFE bus. When the first control module 1100 and the second control module 1200 are MIPI-RFFE control modules or RFFE control modules, the RF device 10 can also be configured with a clock signal input pin CLK, a unidirectional / bidirectional data signal input or bidirectional pin SDATAS, a power pin VDD, a reference voltage pin VIO, etc., to achieve control of the first transmitting amplifier circuit 200, the second transmitting amplifier circuit 500, the first receiving amplifier circuit 300, the second receiving amplifier circuit 400 and each switching module.

[0096] The following is based on Fig. 9 The RF device 10 shown in the figure takes the first UHF band signal and the third UHF band signal as N77, and the second UHF band signal and the fourth UHF band signal as N79 as an example, and specifically analyzes the working principle of the N771T2R&N79 2R LPAM module in this embodiment (wherein 1T2R refers to the one-way transmission and two-way receiving function of the LPAM module to amplify the first UHF band signal, and 2R refers to the two-way receiving function of the LPAM module to amplify the second UHF band signal). In the N771T2R&N79 2R LPAM module, the first power amplifier includes N77 PA, the first receiving amplifier circuit 300 includes two first low noise amplifiers N77 LNA1 and N77 LNA2, the second receiving amplifier circuit 400 includes two second low noise amplifiers N79LNA1 and N79 LNA2, and the other modules and ports are respectively as shown in FIG. Fig. 9As shown (the power port is not shown in the figure), it will not be repeated here.

[0097] The transmission process of the N77 RF signal: the N77 RF signal to be transmitted output by the RF transceiver enters the LPAM module through the first transmission port Tx In1, is amplified by the N77 power amplifier, and then the amplified N77 signal enters the 4P4T RF switch through the first coupling circuit 700, and conducts the connection between the N77 power amplifier and any of the first non-rotating antenna port N77ANT0, the first non-rotating antenna port N77 ANT1, the first rotating antenna port N77 SRS-out1, and the first rotating antenna port N77SRS-out2, so as to transmit the N77 RF signal through the antenna port and the antenna connected thereto, and realize the rotation of the N77 RF signal between multiple antennas. Among them, the first coupling circuit 700 can sample the N77 RF signal passing through, and the first coupled signal obtained by sampling enters the SP3T switch, and is connected to the coupling output port CPL-OUT through the SP3T switch, so as to transmit the first coupled signal to the RF transceiver for analysis and processing.

[0098] The transmission process of another N77 RF signal: the external N77 RF signal enters the 4P4T RF switch through the first round-robin input port SRS_IN1, and turns on the connection between the first round-robin input port SRS-In1 and any one of the first non-round-robin antenna port N77 ANT0, the first non-round-robin antenna port N77 ANT1, the first round-robin antenna port N77 SRS_OUT1, and the first round-robin antenna port N77SRS-out2, so as to transmit another N77 RF signal through the antenna port and the antenna connected to it, and realize the round-robin of the N77 RF signal between multiple antennas.

[0099] The receiving process of the N77 RF signal: the first non-radiating antenna port N77 ANT0 port transmits the N77 RF signal received from the antenna to the conductively connected low noise amplifier N77 LNA1 for signal amplification and then outputs it from the first receiving port N77RX out11 to be transmitted to the RF transceiver.

[0100] Another N77 RF signal receiving process: the first non-radiating antenna port N77 ANT1 port transmits the N77 RF signal received from the antenna to the conductively connected low noise amplifier N77 LNA2 for signal amplification and then outputs it from the first receiving port N77 RX out112 to be transmitted to the RF transceiver.

[0101] Auxiliary transmission process of N79 RF signal: The N79 RF signal input by the external circuit enters the 2P3T RF switch through the second round-robin input port SRS-In2, and turns on the connection between the second round-robin input port SRS-In2 and any one of the second non-round-robin antenna port N79ANT0 and the second non-round-robin antenna port N79ANT1, so as to transmit the N79 RF signal through the antenna port and the antenna connected to it, and realize the round-robin transmission of the N79 RF signal between multiple antennas.

[0102] The receiving process of N79 RF signal: The second non-rotating antenna port N79 ANT0 port transmits the N79 RF signal received from the antenna to the low noise amplifier N79 LNA1 for signal amplification, and then connects to the second receiving port N79 RX out21 output through the SPDT switch to transmit to the RF transceiver.

[0103] Another N79 RF signal receiving process: The second non-radiating antenna port N79 ANT1 port transmits the N79 RF signal received from the antenna to the conductively connected low noise amplifier N79 LNA2 for signal amplification and then outputs it from the second receiving port N79 RX out22 to be transmitted to the RF transceiver.

[0104] Based on the above Figure 1-Figure 9 In addition to the RF device 10 in the embodiment of the present application, a RF system is also provided, and the RF system includes multiple antennas; a RF transceiver; and the RF device 10 as in the above embodiment.

[0105] The radio frequency system provided in this embodiment includes multiple antennas; a radio frequency transceiver; and the radio frequency device 10 as in the above embodiment. The radio frequency system can realize the multi-band communication requirements of the 5G ultra-high frequency band on the basis of realizing the decoupling of the power amplifier, the low noise amplifier, etc. from the filter, greatly reducing the cost of the radio frequency front end; it is also conducive to giving play to the technical advantages of domestic manufacturers in devices such as power amplifiers and low noise amplifiers, so that more manufacturers can participate in the preparation of the radio frequency device 10, greatly promoting the development of domestic radio frequency front-end devices and improving the passive situation of domestic radio frequency front-end devices.

[0106] Based on the above Figure 1-Figure 7 , Fig. 9 The RF device 10 in the embodiment of the present application further provides a RF system, which includes multiple antennas; a RF transceiver; the RF device 10 as in the above embodiment; and a filtering circuit.

[0107] Among them, multiple first ends of the filter circuit are respectively connected to multiple antenna ports, and multiple second ends of the filter circuit are respectively connected to multiple antennas. The filter circuit is used to filter the received first ultra-high frequency band signal and the second ultra-high frequency band signal respectively. For further description of the filter circuit, reference can be made to the relevant description of the above embodiment, which will not be repeated here.

[0108] The radio frequency system provided in this embodiment includes multiple antennas; a radio frequency transceiver; a radio frequency device as in the above embodiment; and a filter circuit. The radio frequency system can realize the multi-band communication requirements of the 5G ultra-high frequency band on the basis of realizing the decoupling of the power amplifier, low-noise amplifier, etc. from the filter, greatly reducing the cost of the radio frequency front-end; it is also beneficial to give play to the technical advantages of domestic manufacturers in power amplifiers, low-noise amplifiers and other devices, so that more manufacturers can participate in the preparation of radio frequency devices, greatly promoting the development of domestic radio frequency front-end devices and improving the passive situation of domestic radio frequency front-end devices. At the same time, the setting position, selection specifications, device types, etc. of the filter circuit are more flexible and variable, making the design of the radio frequency system more flexible and adaptable to more communication scenarios.

[0109] The present application also provides a communication device, including the RF system in the above embodiment. The communication device is based on the RF device and RF system in the above embodiment, which can reduce the cost of the RF front-end, and is also conducive to giving full play to the technical advantages of domestic manufacturers in devices such as power amplifiers and low-noise amplifiers, so that more manufacturers can participate in the preparation of RF front-end devices, greatly promoting the development of domestic RF front-end devices and improving the passive situation of domestic RF front-end devices.

[0110] like Fig.10 As shown, further, the above communication device is taken as a mobile phone 11 as an example for explanation, specifically, as Fig.10 As shown, the mobile phone 11 may include a memory 21 (which may optionally include one or more computer-readable storage media), a processor 22, a peripheral device interface 23, a radio frequency system 24 of the above-mentioned embodiment, and an input / output (I / O) subsystem 26. These components may communicate via one or more communication buses or signal lines 29. Those skilled in the art will appreciate that Fig.10 The illustrated mobile phone 11 does not constitute a limitation of the mobile phone, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components. Fig.10 The various components shown in the EMBODIMENTS 200 are implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated modules.

[0111] The memory 21 optionally includes a high-speed random access memory, and optionally also includes a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, the software components stored in the memory 21 include an operating system 211, a communication module (or an instruction set) 212, a global positioning system (GPS) module (or an instruction set) 213, etc.

[0112] The processor 22 and other control modules (such as the control module in the radio frequency system 24) can be used to control the operation of the mobile phone 11. The processor 22 can be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated modules, etc.

[0113] The processor 22 may be configured to implement a control algorithm for controlling the use of an antenna in the handset 11. The processor 22 may also issue control commands for controlling switches in the radio frequency system 24, etc.

[0114] The I / O subsystem 26 couples input / output peripherals on the mobile phone 11, such as a keypad and other input control devices, to the peripheral device interface 23. The I / O subsystem 26 optionally includes a touch screen, buttons, a tone generator, an accelerometer (motion sensor), an ambient light sensor and other sensors, light emitting diodes and other status indicators, a data interface, etc. Exemplarily, a user can control the operation of the mobile phone 11 by supplying commands via the I / O subsystem 26, and can use the output resources of the I / O subsystem 26 to receive status information and other output from the mobile phone 11. For example, a user can press button 261 to turn the mobile phone on or off.

[0115] Any reference to memory, storage, database or other media used in this application may include non-volatile and / or volatile memory. Suitable non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RM), which is used as an external cache memory. As an illustration and not limitation, RM is available in various forms, such as static RM (SRM), dynamic RM (DRM), synchronous DRM (SDRM), double data rate SDRM (DDR SDRM), enhanced SDRM (ESDRM), synchronous link (Synchlink) DRM (SLDRM), memory bus (Rmbus) direct RM (RDRM), direct memory bus dynamic RM (DRDRM) and memory bus dynamic RM (RDRM).

[0116] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A radio frequency device, characterized in that: The radio frequency device is configured with a first transmitting port, a first receiving port, a second receiving port for connecting to a radio frequency transceiver, and a plurality of antenna ports for connecting to an antenna, and the radio frequency device includes: A first transmitting amplifying circuit, connected to the first transmitting port, and configured to amplify a first UHF frequency band signal received by the first transmitting port; a first receiving amplifier circuit, connected to the first receiving port, for amplifying a first UHF band signal from the antenna port and outputting the signal to the RF transceiver via the first receiving port; a second receiving amplifier circuit, connected to the second receiving port, for amplifying the second UHF band signal from the antenna port and outputting the signal to the RF transceiver via the second receiving port; The first RF switch has multiple first ends and multiple second ends, the multiple first ends of the first RF switch are respectively connected to the multiple antenna ports, the multiple second ends of the first RF switch are respectively connected to the first transmitting amplifier circuit, the first receiving amplifier circuit, and the second receiving amplifier circuit, and the first RF switch is used to select and conduct the RF path between the first transmitting amplifier circuit, the first receiving amplifier circuit, the second receiving amplifier circuit and any antenna port, so that the first transmitting amplifier circuit supports the alternating transmission of the first ultra-high frequency band signal between the multiple antenna ports, and the first receiving amplifier circuit receives the first ultra-high frequency band signal and the second receiving amplifier circuit receives the second ultra-high frequency band signal.

2. The radio frequency device according to claim 1, characterized in that: The first receiving amplifier circuit includes a plurality of first low noise amplifiers, an input end of each of the first low noise amplifiers is connected to a second end of the first radio frequency switch, an output end of each of the first low noise amplifiers is connected to a first receiving port, and the first receiving amplifier circuit is used to support multi-channel reception of the first ultra-high frequency band signal; The second receiving amplification circuit includes multiple second low-noise amplifiers, the input end of each second low-noise amplifier is connected to a second end of the first RF switch, the output end of each second low-noise amplifier is connected to a second receiving port, and the second receiving amplification circuit is used to support multi-channel reception of the second ultra-high frequency band signal.

3. The radio frequency device according to claim 2, characterized in that: The plurality of antenna ports include a plurality of first antenna ports and a plurality of second antenna ports; The first radio frequency switch comprises: A first switch unit, having a plurality of first ends and a plurality of second ends, wherein the plurality of first ends of the first switch unit are respectively connected to a plurality of first antenna ports, and part of the second ends of the first switch unit are respectively connected to an output end of the first transmitting amplifier circuit and an input end of the plurality of first low-noise amplifiers; the first switch unit is used to select and conduct a radio frequency path between the first transmitting amplifier circuit and any of the first antenna ports; the first switch unit is also used to select and conduct a radio frequency path between each of the first low-noise amplifiers and one of the first antenna ports; The second switch unit has multiple first ends and multiple second ends, the multiple first ends of the second switch unit are respectively connected to the multiple second antenna ports, some of the second ends of the second switch unit are respectively connected to the input ends of the multiple second low-noise amplifiers, and the second switch unit is used to select and conduct the radio frequency path between each of the second low-noise amplifiers and one of the second antenna ports.

4. The radio frequency device according to claim 3, characterized in that: The RF device is further configured with a first round-radio input port, the first round-radio input port is connected to the other second end of the first switch unit, the first round-radio input port is used to connect to an external circuit to receive a third ultra-high frequency band signal transmitted by the external circuit, and the frequency band of the third ultra-high frequency band signal is the same as the frequency band of the first ultra-high frequency band signal; The first switch unit is further used to select the radio frequency path between the first round-transmitting input port and any of the first antenna ports, so that the first round-transmitting input port supports the alternating transmission of the third ultra-high frequency band signal between multiple first antenna ports.

5. The radio frequency device according to claim 4, characterized in that: The number of the first low noise amplifiers is two; The multiple first antenna ports include two first round-robin antenna ports and two first non-round-robin antenna ports, each of the first round-robin antenna ports can be switchably connected to the first transmit amplifier circuit and the first round-robin input port, and each of the first non-round-robin antenna ports can be switchably connected to the first transmit amplifier circuit, the first round-robin input port and a first low-noise amplifier.

6. The radio frequency device according to claim 3, characterized in that: The RF device is further configured with a second round of transmitting input port, the second round of transmitting input port is connected to the other second end of the second switch unit, and the second round of transmitting input port is used to connect to an external circuit to receive a fourth ultra-high frequency band signal transmitted by the external circuit, and the frequency band of the fourth ultra-high frequency band signal is the same as the frequency band of the second ultra-high frequency band signal; The second switch unit is further used to select the radio frequency path between the second round-transmitting input port and any second antenna port, so that the second round-transmitting input port supports the alternating transmission of the fourth ultra-high frequency band signal between multiple second antenna ports.

7. The radio frequency device according to claim 3, characterized in that: The radio frequency device is also configured with a second transmission port for connecting to the radio frequency transceiver, and the radio frequency device further comprises: A second transmitting amplifying circuit is connected to the second transmitting port and the other second end of the second switch unit respectively, and is used to amplify the second UHF band signal received by the second transmitting port; The second switch unit is further used to select and conduct a radio frequency path between the second transmit amplifier circuit and any one of the second antenna ports.

8. The radio frequency device according to claim 7, characterized in that: The RF device is also configured with a power port, which is respectively connected to the power end of the first transmit amplifier circuit and the power end of the second transmit amplifier circuit. The power port is used to connect to an external power supply so that the power supply supplies power to the first transmit amplifier circuit and the second transmit amplifier circuit respectively.

9. The radio frequency device according to claim 2, characterized in that: The radio frequency device is further configured with an auxiliary input port, and the auxiliary input port is used to connect to an external auxiliary receiving amplifying circuit to receive a radio frequency signal received by the external auxiliary receiving amplifying circuit; The radio frequency device also includes: a second RF switch, wherein a first end of the second RF switch is connected to a target receiving port, a plurality of second ends of the second RF switch are respectively connected to the auxiliary input port and a target low noise amplifier, and the second RF switch is used to conduct a connection between the target low noise amplifier and the target receiving port, or conduct a connection between the auxiliary input port and the target receiving port; The target receiving port is the first receiving port, and the target low noise amplifier is the first low noise amplifier; and / or the target receiving port is the second receiving port, and the target low noise amplifier is the second low noise amplifier.

10. The radio frequency device according to claim 1, characterized in that: The radio frequency device also includes: A first coupling circuit is provided on a transmission channel between the first transmitting amplifying circuit and the first radio frequency switch, and is used for coupling the first ultra-high frequency band signal after amplification by the first transmitting amplifying circuit to obtain a first coupling signal; The RF device is further configured with a coupling output port, which can be conductively connected to the first coupling circuit, and the coupling output port is used to connect to the RF transceiver to transmit the first coupling signal of the conductively connected first coupling circuit to the RF transceiver.

11. The radio frequency device according to claim 10, characterized in that: The radio frequency device is further configured with an auxiliary coupling input port, and the auxiliary coupling input port is used to connect to an external coupling circuit to receive a second coupling signal obtained by the external coupling circuit; The radio frequency device also includes: A third RF switch, wherein a first end of the third RF switch is connected to the coupling output port, two second ends of the third RF switch are respectively connected to the first coupling circuit and the auxiliary coupling input port, and the third RF switch is used to select and conduct the connection between the target coupling circuit and the coupling output port, and the target coupling circuit includes any one of the first coupling circuit and the external coupling circuit.

12. The radio frequency device according to claim 1, characterized in that: The first ultra-high frequency band signal is an N77 / N78 frequency band signal, and the second ultra-high frequency band signal is an N79 frequency band signal.

13. The radio frequency device according to any one of claims 1 to 12, characterized in that: The radio frequency device also includes: A filter circuit, wherein the multiple first ends of the filter circuit are respectively connected to the multiple second ends of the first RF switch, and the multiple second ends of the filter circuit are respectively connected to the multiple antenna ports, and the filter circuit is used to filter the received first ultra-high frequency band signal and the second ultra-high frequency band signal respectively.

14. A radio frequency system, characterized in that: include: Multiple antennas; RF transceiver; The radio frequency device according to any one of claims 1 to 12; and A filter circuit, wherein the multiple first ends of the filter circuit are respectively connected to the multiple antenna ports, and the multiple second ends of the filter circuit are respectively connected to the multiple antennas, and the filter circuit is used to filter the received first ultra-high frequency band signal and the second ultra-high frequency band signal respectively.

15. A radio frequency system, characterized in that: include: Multiple antennas; RF transceiver; and A radio frequency device as claimed in any one of claims 1 to 13.

16. A communication device, characterized in that: Comprising a radio frequency system as claimed in claim 14 or 15.

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