RF power splitter unit, RF power splitter module and RF receiving system

Abstract

The present invention provides a radio frequency power splitter unit, a radio frequency power splitter module, and a radio frequency receiving system. The radio frequency power splitter unit includes a first low-noise amplifier, a first single-pole single-throw radio frequency switch, a second single-pole single-throw radio frequency switch, a third single-pole single-throw radio frequency switch, a power splitter, a fourth single-pole single-throw radio frequency switch, and a fifth single-pole single-throw radio frequency switch. The input impedance of the input end of the power splitter, the impedance of the first output end of the power splitter, and the impedance of the second output end of the power splitter are all the same. In this embodiment, the radio frequency power splitter unit can fully match the impedance of the two output ends of the power splitter with the input impedance of the transceiver connected to the subsequent stage, thereby preventing the transmitted radio frequency energy from being reflected and achieving maximum transmission of radio frequency energy.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a radio frequency power splitter unit, a radio frequency power splitter module and a radio frequency receiving system. Background Art

[0002] As one of the core components in microwave radio frequency communication circuits, the power divider is mainly used for power distribution. In the radio frequency receiving system, the performance of the power divider directly affects the performance of the transceiver. Figure 1 As shown in the figure, the RF receiving system consists of an antenna, an ASM, a duplexer, a low-noise amplifier circuit, a power divider, a transceiver and a baseband processor, and the ASM is a switching unit.

[0003] In the prior art, radio frequency receiving systems such as Figure 1 As shown, the antenna is used to receive signals. The signal received from the antenna is sent to the input end of the ASM, and the output port is selected by the ASM. The output signal of the ASM is sent to the low-noise amplifier circuit through the duplexer. The low-noise amplifier circuit contains two small low-noise amplifiers. The output of the low-noise amplifier circuit has four states: The first state is when the second low-noise amplifier's RF amplified signal needs to be output directly from its own output terminal, while the first low-noise amplifier's RF amplified signal needs to be output directly from its own output terminal. The second state is when the second low-noise amplifier's RF amplified signal needs to be output from the first low-noise amplifier's output terminal, while the first low-noise amplifier's RF amplified signal needs to be output from the second low-noise amplifier's output terminal. The third state is when the second low-noise amplifier requires power splitting. The second low-noise amplifier's RF amplified signal is split into two, outputting from the second low-noise amplifier's output terminal and the first low-noise amplifier's output terminal, respectively. In this state, the first low-noise amplifier is inoperative. The power splitting function is implemented using a double-pole double-throw switch (DPDT), which performs the power splitting function of a power divider. The fourth state is when the low-noise amplifier circuit's RF amplified signal is not output. Finally, the signal passing through the DPDT switch is input to the transceiver and then to the baseband processor.

[0004] From the above description, we can know that the way the second low noise amplifier realizes the power splitting function is to use a double-pole double-throw switch, which splits the RF amplified signal of the second low noise amplifier into two. At this time, the first low noise amplifier does not work, so no RF amplified signal is output through the switch. For example, if the input impedance of the double-pole double-throw switch is 50Ω, it has approximately The capacitance is divided into two by the switch, that is, the impedance of the two output ends is 25Ω respectively. The subsequent stage of the double-pole double-throw switch needs to be connected to the transceiver, and the input impedance of the transceiver is 50Ω, so there will be a certain impedance mismatch. At this time, 1 / 3 of the energy will be reflected back, that is, the voltage standing wave ratio (VSWR) = 2, which will have an adverse effect on the operation of the transceiver. In addition, the output of the double-pole double-throw switch needs to carry two transceivers, so each transceiver will cause impedance mismatch, so the maximum energy transmission cannot be achieved, which has an adverse effect on the RF communication system.

[0005] In summary, the conventional low noise amplifier uses a double-pole double-throw switch to realize the power splitting function, which causes 1 / 3 of the radio frequency energy to be reflected back, thereby failing to achieve maximum transmission of radio frequency energy. Summary of the Invention

[0006] In response to the above-mentioned deficiencies in the existing technology, the present invention proposes a radio frequency power splitter unit, a radio frequency power splitter module and a radio frequency receiving system to solve the problem in the existing technology that the low-noise amplifier uses a double-pole double-throw switch to realize the power splitting function, which causes 1 / 3 of the radio frequency energy to be reflected back, thereby failing to achieve maximum transmission of radio frequency energy.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a radio frequency power splitter unit, comprising a first low noise amplifier, a first single-pole single-throw radio frequency switch, a second single-pole single-throw radio frequency switch, a third single-pole single-throw radio frequency switch, a power splitter, a fourth single-pole single-throw radio frequency switch, and a fifth single-pole single-throw radio frequency switch;

[0009] The input end of the first low noise amplifier is used to receive a radio frequency signal;

[0010] The control end of the first single-pole single-throw radio frequency switch is connected to the output end of the first low-noise amplifier, and the output end of the first single-pole single-throw radio frequency switch serves as a first radio frequency signal output end for outputting the first radio frequency signal;

[0011] The control end of the second single-pole single-throw radio frequency switch is connected to the output end of the first low-noise amplifier, and the output end of the second single-pole single-throw radio frequency switch serves as a second radio frequency signal output end for outputting the second radio frequency signal;

[0012] The control end of the third single-pole single-throw radio frequency switch is connected to the output end of the low-noise amplifier;

[0013] The input end of the power divider is connected to the output end of the third single-pole single-throw radio frequency switch, and the input impedance of the input end of the power divider, the impedance of the first output end of the power divider, and the impedance of the second output end of the power divider are all the same;

[0014] The control end of the fourth single-pole single-throw radio frequency switch is connected to the first output end of the power divider, and the output end of the fourth single-pole single-throw radio frequency switch is connected to the output end of the first single-pole single-throw radio frequency switch;

[0015] The control end of the fifth single-pole single-throw radio frequency switch is connected to the second output end of the power divider, and the output end of the fifth single-pole single-throw radio frequency switch is connected to the output end of the second single-pole single-throw radio frequency switch.

[0016] Preferably, the power divider includes a first T-type impedance converter and a second T-type impedance converter;

[0017] The input end of the first T-type impedance converter and the input end of the second T-type impedance converter serve together as the input end of the power divider;

[0018] The output end of the first T-type impedance converter serves as the first output end of the power divider;

[0019] The output end of the second T-type impedance converter serves as the second output end of the power divider.

[0020] Preferably, the first T-type impedance converter includes a first capacitor, a first inductor and a second capacitor;

[0021] The first end of the first capacitor serves as an input end of the first T-type impedance converter;

[0022] The first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded;

[0023] A first end of the second capacitor is connected to a first end of the first inductor, and a second end of the second capacitor serves as an output end of the first T-type impedance converter.

[0024] Preferably, the second T-type impedance converter includes a third capacitor, a second inductor and a fourth capacitor;

[0025] The first end of the third capacitor serves as the input end of the second T-type impedance converter;

[0026] The first end of the second inductor is connected to the second end of the third capacitor, and the second end of the second inductor is grounded;

[0027] A first end of the fourth capacitor is connected to the first end of the second inductor, and a second end of the fourth capacitor serves as an output end of the second T-type impedance converter.

[0028] Preferably, the capacitance values of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor are all 0.1 pF to 2 pF.

[0029] Preferably, the inductance values of the first inductor and the second inductor are both 0.5nH~5nH.

[0030] Preferably, the power divider further includes a resistor; two ends of the resistor are respectively connected to the output end of the first T-type impedance converter and the output end of the second T-type impedance converter.

[0031] In a second aspect, the present invention provides a radio frequency power splitter module, which includes a radio frequency amplification unit and the radio frequency power splitter unit described above;

[0032] The radio frequency amplification unit includes a second low noise amplifier and a single-pole double-throw radio frequency switch;

[0033] The input end of the second low noise amplifier is used to receive a radio frequency signal;

[0034] The common end of the single-pole double-throw radio frequency switch is connected to the output end of the second low-noise amplifier, the first connection end of the single-pole double-throw radio frequency switch is used to conduct and output the third radio frequency signal, and the second connection end of the single-pole double-throw radio frequency switch is used to conduct and output the fourth radio frequency signal;

[0035] The input end of the first low-noise amplifier and the input end of the second low-noise amplifier jointly serve as the input end of the RF power splitter module, the first connection end of the single-pole double-throw RF switch is connected to the output end of the first single-pole single-throw RF switch and serves as the first output end of the RF power splitter module, and the second connection end of the single-pole double-throw RF switch is connected to the output end of the second single-pole single-throw RF switch and serves as the second output end of the RF power splitter module.

[0036] In a third aspect, the present invention provides a radio frequency receiving system comprising an antenna, a switch unit, a duplexer, the radio frequency power splitter module as described above, a transceiver, and a baseband processor;

[0037] The antenna is used to receive radio frequency signals;

[0038] The first connection end of the switch unit is connected to the antenna and is used to select an output channel;

[0039] The input end of the duplexer is connected to the second connection end of the switch unit, and is used to filter noise of the received radio frequency signal;

[0040] The input end of the RF power splitter module is connected to the output end of the duplexer;

[0041] The input end of the transceiver is respectively connected to the first output end of the RF power splitter module and the second output end of the RF power splitter module, and is used to receive the RF signal sent by the RF power splitter module and send the received RF signal to the baseband processor;

[0042] The input end of the baseband processor is connected to the output end of the transceiver, and is used for processing and storing data of the received radio frequency signal.

[0043] Compared with the prior art, the RF power splitter unit in the present invention limits the input impedance of the input end of the power splitter, the impedance of the first output end of the power splitter, and the impedance of the second output end of the power splitter to be the same. In this way, the impedance of the two output ends of the power splitter can be completely matched with the input impedance of the transceiver connected to the subsequent stage, so that the transmitted RF energy will not be reflected, thereby achieving maximum transmission of RF energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be described in detail below with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and easier to understand through the detailed description made with reference to the following drawings. In the accompanying drawings:

[0045] Figure 1 A circuit schematic diagram of a radio frequency receiving system provided by the prior art;

[0046] Figure 2 A circuit schematic diagram of a radio frequency power splitter module provided in an embodiment of the present invention;

[0047] Figure 3 This is a circuit schematic diagram of a radio frequency receiving system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0049] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] Example 1

[0052] The embodiment of the present invention provides a radio frequency power splitter unit 110, such as Figure 2 As shown, it includes a first low noise amplifier LNA1, a first single-pole single-throw RF switch S1, a second single-pole single-throw RF switch S2, a third single-pole single-throw RF switch S3, a power divider 111, a fourth single-pole single-throw RF switch S4 and a fifth single-pole single-throw RF switch S5.

[0053] An input terminal of the first low noise amplifier LNA1 is used to receive a radio frequency signal.

[0054] The control end of the first SPST RF switch S1 is connected to the output end of the first low noise amplifier LNA1 , and the output end of the first SPST RF switch S1 serves as a first RF signal output end for outputting the first RF signal.

[0055] The control end of the second SPST RF switch S2 is connected to the output end of the first low noise amplifier LNA1 , and the output end of the second SPST RF switch S2 serves as a second RF signal output end for outputting the second RF signal.

[0056] The control end of the third single-pole single-throw radio frequency switch S3 is connected to the output end of the low noise amplifier.

[0057] The input end of the power divider 111 is connected to the output end of the third single-pole single-throw RF switch S3. The input impedance of the input end of the power divider 111, the impedance of the first output end of the power divider 111, and the impedance of the second output end of the power divider 111 are all the same. In this embodiment, the input impedance of the input end of the power divider 111, the impedance of the first output end of the power divider 111, and the impedance of the second output end of the power divider 111 are all 50Ω.

[0058] The control end of the fourth SPST RF switch S4 is connected to the first output end of the power divider 111 , and the output end of the fourth SPST RF switch S4 is connected to the output end of the first SPST RF switch S1 .

[0059] The control end of the fifth SPST RF switch S5 is connected to the second output end of the power divider 111 , and the output end of the fifth SPST RF switch S5 is connected to the output end of the second SPST RF switch S2 .

[0060] In this embodiment, the power divider 111 includes a first T-type impedance converter 1111 and a second T-type impedance converter 1112 .

[0061] The input end of the first T-type impedance converter 1111 and the input end of the second T-type impedance converter 1112 serve together as the input end of the power divider 111 .

[0062] The output end of the first T-type impedance converter 1111 serves as the first output end of the power divider 111 .

[0063] The output end of the second T-type impedance converter 1112 serves as the second output end of the power divider 111 .

[0064] The first T-type impedance converter 1111 includes a first capacitor C1 , a first inductor L1 , and a second capacitor C2 .

[0065] The first end of the first capacitor C1 serves as the input end of the first T-type impedance converter 1111 .

[0066] A first end of the first inductor L1 is connected to a second end of the first capacitor C1 , and a second end of the first inductor L1 is grounded.

[0067] A first end of the second capacitor C2 is connected to the first end of the first inductor L1 , and a second end of the second capacitor C2 serves as an output end of the first T-type impedance converter 1111 .

[0068] The second T-type impedance converter 1112 includes a third capacitor C3 , a second inductor L2 , and a fourth capacitor C4 .

[0069] A first end of the third capacitor C3 serves as an input end of the second T-type impedance converter 1112 .

[0070] A first end of the second inductor L2 is connected to a second end of the third capacitor C3 , and a second end of the second inductor L2 is grounded.

[0071] A first end of the fourth capacitor C4 is connected to the first end of the second inductor L2 , and a second end of the fourth capacitor C4 serves as an output end of the second T-type impedance converter 1112 .

[0072] In this embodiment, the capacitance values of the first capacitor C1 , the second capacitor C2 , the third capacitor C3 , and the fourth capacitor C4 are all in the range of 0.1 pF to 2 pF.

[0073] The inductance values of the first inductor L1 and the second inductor L2 are both 0.5nH-5nH.

[0074] The power divider 111 further includes a resistor R, the two ends of which are connected to the output of the first T-type impedance converter 1111 and the output of the second T-type impedance converter 1112. The design of the resistor R can enhance the isolation between the first output of the power divider 111 and the second output of the power divider 111.

[0075] In the RF power splitter 110 of this embodiment, when a RF signal with an impedance of 50Ω passes through the power splitter 111, the first T-type impedance converter 1111 and the second T-type impedance converter 1112 of the power splitter 111 convert the RF signal. The signal power output from the output end of the first T-type impedance converter 1111 and the signal power output from the output end of the second T-type impedance converter 1112 will become 1 / 2 of the original RF signal, and the output impedance will become 50Ω. At this time, since the input impedance of the transceiver connected to the subsequent stage of the RF power splitter 110 is also 50Ω, the impedances of the two can be fully matched, so that the RF energy transmitted by the RF power splitter 110 will not be reflected, thereby achieving maximum transmission of RF energy.

[0076] Compared with the prior art, the RF power splitter unit 110 in this embodiment limits the input impedance of the input end of the power splitter 111, the impedance of the first output end of the power splitter 111, and the impedance of the second output end of the power splitter 111 to be the same. In this way, the impedance of the two output ends of the power splitter 111 can be completely matched with the input impedance of the transceiver connected to the subsequent stage, so that the transmitted RF energy will not be reflected, thereby achieving maximum transmission of RF energy.

[0077] Example 2

[0078] The embodiment of the present invention provides a radio frequency power splitter module 100, such as Figure 2 As shown, it includes a radio frequency amplifying unit 120 and the radio frequency power splitting unit 110 in the first embodiment.

[0079] The radio frequency amplification unit 120 includes a second low noise amplifier LNA2 and a single-pole double-throw radio frequency switch S6.

[0080] An input terminal of the second low noise amplifier LNA2 is used to receive a radio frequency signal.

[0081] The common end of the single-pole double-throw RF switch S6 is connected to the output end of the second low-noise amplifier LNA2, the first connection end of the single-pole double-throw RF switch S6 is used to conduct and output the third RF signal, and the second connection end of the single-pole double-throw RF switch S6 is used to conduct and output the fourth RF signal.

[0082] The input end of the first low-noise amplifier LNA1 and the input end of the second low-noise amplifier LNA2 jointly serve as the input end of the RF power splitter module 100, the first connection end of the single-pole double-throw RF switch S6 is connected to the output end of the first single-pole single-throw RF switch S1 and serves as the first output end out1 of the RF power splitter module 100, and the second connection end of the single-pole double-throw RF switch S6 is connected to the output end of the second single-pole single-throw RF switch S2 and serves as the second output end out2 of the RF power splitter module 100.

[0083] The working principle of the RF power splitter module 100 in this embodiment is as follows: when the RF amplified signal of the second low noise amplifier LNA2 is output from the first output terminal of the RF power splitter module 100, the common end of the single-pole double-throw RF switch S6 is connected to the first connection end of the single-pole double-throw RF switch S6, and when the RF amplified signal of the first low noise amplifier LNA1 is output from the second output terminal of the RF power splitter module 100, the second single-pole single-throw RF switch S2 is connected or opened, and the first single-pole single-throw RF switch S1, the third single-pole single-throw RF switch S3, the fourth single-pole single-throw RF switch S4 and the fifth single-pole single-throw RF switch S5 are all disconnected or closed; when the RF amplified signal of the second low noise amplifier LNA2 is output from the second output terminal of the RF power splitter module 100, the common end of the single-pole double-throw RF switch S6 is connected to the second connection end of the single-pole double-throw RF switch S6, and when the RF amplified signal of the first low noise amplifier LNA1 is output from the first output terminal of the RF power splitter module 100, the first single-pole single-throw RF switch S2 is connected or opened, and the first single-pole single-throw RF switch S1, the third single-pole single-throw RF switch S3, the fourth single-pole single-throw RF switch S4 and the fifth single-pole single-throw RF switch S5 are all disconnected or closed. The single-pole double-throw RF switch S1 is connected or open, and the second single-pole single-throw RF switch S2, the third single-pole single-throw RF switch S3, the fourth single-pole single-throw RF switch S4 and the fifth single-pole single-throw RF switch S5 are all disconnected or closed; when the first low-noise amplifier LNA1 is in the power splitter mode and the second low-noise amplifier LNA2 is not working, the common end of the single-pole double-throw RF switch S6 is grounded, the first single-pole single-throw RF switch S1 and the second single-pole single-throw RF switch S2 are both disconnected or closed, and the third single-pole single-throw RF switch S3, the fourth single-pole single-throw RF switch S4 and the fifth single-pole single-throw RF switch S5 are all connected or open; when the first low-noise amplifier LNA1 and the second low-noise amplifier LNA2 are both not working, the single-pole double-throw RF switch S6, the first single-pole single-throw RF switch S1, the second single-pole single-throw RF switch S2, the third single-pole single-throw RF switch S3, the fourth single-pole single-throw RF switch S4 and the fifth single-pole single-throw RF switch S5 are all grounded or disconnected, and no RF signal enters at this time.

[0084] Since the RF power splitter module 100 in this embodiment includes the RF power splitter unit 110 in the first embodiment, it can also achieve the technical effects achieved by the RF power splitter unit 110 in the first embodiment, which will not be described in detail here.

[0085] Example 3

[0086] This embodiment provides a radio frequency receiving system 200, combined with Figure 2 and Figure 3 As shown, it includes an antenna 201 , a switch unit 202 , a duplexer 203 , the RF power splitter module 100 in the second embodiment, a transceiver 206 and a baseband processor 207 .

[0087] The antenna 201 is used to receive radio frequency signals.

[0088] A first connection end of the switch unit 202 is connected to the antenna 201 for selecting an output channel.

[0089] The input terminal of the duplexer 203 is connected to the second connection terminal of the switch unit 202, and is used to filter noise from the received radio frequency signal. In this embodiment, the duplexer 203 is composed of a filter.

[0090] The input end of the RF power splitter module 100 is connected to the output end of the duplexer 203 .

[0091] The input end of the transceiver 206 is respectively connected to the first output end out1 of the RF power splitter module 100 and the second output end out2 of the RF power splitter module 100 , and is used to receive the RF signal sent by the RF power splitter module 100 and send the received RF signal to the baseband processor 207 .

[0092] An input terminal of the baseband processor 207 is connected to an output terminal of the transceiver 206 for performing data processing and storage on the received RF signal.

[0093] In this embodiment, the input impedance of the input end of the transceiver 206 is 50Ω.

[0094] like Figure 3 As shown, the first low noise amplifier LNA1 and the second low noise amplifier LNA2 in the RF power splitter module 100 constitute a conventional low noise amplifier circuit 204, and the first single-pole single-throw RF switch S1, the second single-pole single-throw RF switch S2, the third single-pole single-throw RF switch S3, the power splitter 111, the fourth single-pole single-throw RF switch S4, the fifth single-pole single-throw RF switch S5 and the single-pole double-throw RF switch S6 constitute a power splitter switch combination unit 205.

[0095] Since the RF receiving system 200 in this embodiment includes the RF power splitter module 100 in the second embodiment, it can also achieve the technical effects achieved by the RF power splitter module 100 in the second embodiment, which will not be described in detail here.

[0096] It should be noted that the various embodiments described above with reference to the accompanying drawings are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Those skilled in the art should understand that any modifications or equivalent substitutions to the present invention that do not depart from the spirit and scope of the present invention are intended to be encompassed within the scope of the present invention. Furthermore, unless the context otherwise requires, words appearing in the singular include the plural form, and vice versa. Furthermore, unless otherwise specified, all or part of any embodiment may be used in combination with all or part of any other embodiment.

Claims

1. A radio frequency power splitter unit, characterized in that: The radio frequency power splitter unit includes a first low noise amplifier, a first single-pole single-throw radio frequency switch, a second single-pole single-throw radio frequency switch, a third single-pole single-throw radio frequency switch, a power splitter, a fourth single-pole single-throw radio frequency switch and a fifth single-pole single-throw radio frequency switch; The input end of the first low noise amplifier is used to receive a radio frequency signal; The control end of the first single-pole single-throw radio frequency switch is connected to the output end of the first low-noise amplifier, and the output end of the first single-pole single-throw radio frequency switch serves as a first radio frequency signal output end for outputting the first radio frequency signal; The control end of the second single-pole single-throw radio frequency switch is connected to the output end of the first low-noise amplifier, and the output end of the second single-pole single-throw radio frequency switch serves as a second radio frequency signal output end for outputting the second radio frequency signal; The control end of the third single-pole single-throw radio frequency switch is connected to the output end of the low-noise amplifier; The input end of the power divider is connected to the output end of the third single-pole single-throw radio frequency switch, and the input impedance of the input end of the power divider, the impedance of the first output end of the power divider, and the impedance of the second output end of the power divider are all the same; The control end of the fourth single-pole single-throw radio frequency switch is connected to the first output end of the power divider, and the output end of the fourth single-pole single-throw radio frequency switch is connected to the output end of the first single-pole single-throw radio frequency switch; The control end of the fifth single-pole single-throw radio frequency switch is connected to the second output end of the power divider, and the output end of the fifth single-pole single-throw radio frequency switch is connected to the output end of the second single-pole single-throw radio frequency switch; The power divider includes a first T-type impedance converter and a second T-type impedance converter; The input end of the first T-type impedance converter and the input end of the second T-type impedance converter serve together as the input end of the power divider; The output end of the first T-type impedance converter serves as the first output end of the power divider; The output end of the second T-type impedance converter serves as the second output end of the power divider.

2. The radio frequency power splitter unit according to claim 1, wherein: The first T-type impedance converter includes a first capacitor, a first inductor and a second capacitor; The first end of the first capacitor serves as an input end of the first T-type impedance converter; The first end of the first inductor is connected to the second end of the first capacitor, and the second end of the first inductor is grounded; A first end of the second capacitor is connected to a first end of the first inductor, and a second end of the second capacitor serves as an output end of the first T-type impedance converter.

3. The radio frequency power splitter unit according to claim 2, wherein: The second T-type impedance converter includes a third capacitor, a second inductor and a fourth capacitor; The first end of the third capacitor serves as the input end of the second T-type impedance converter; The first end of the second inductor is connected to the second end of the third capacitor, and the second end of the second inductor is grounded; A first end of the fourth capacitor is connected to the first end of the second inductor, and a second end of the fourth capacitor serves as an output end of the second T-type impedance converter.

4. The radio frequency power splitter unit according to claim 3, wherein: The capacitance values of the first capacitor, the second capacitor, the third capacitor, and the fourth capacitor are all 0.1 pF to 2 pF.

5. The radio frequency power splitter unit according to claim 4, wherein: The inductance values of the first inductor and the second inductor are both 0.5nH-5nH.

6. The radio frequency power splitter unit according to claim 1, wherein: The power divider further includes a resistor; two ends of the resistor are respectively connected to the output end of the first T-type impedance converter and the output end of the second T-type impedance converter.

7. A radio frequency power splitter module, characterized in that: The RF power splitter module comprises a RF amplifying unit and a RF power splitter unit according to any one of claims 1 to 6; The radio frequency amplification unit includes a second low noise amplifier and a single-pole double-throw radio frequency switch; The input end of the second low noise amplifier is used to receive a radio frequency signal; The common end of the single-pole double-throw radio frequency switch is connected to the output end of the second low-noise amplifier, the first connection end of the single-pole double-throw radio frequency switch is used to conduct and output the third radio frequency signal, and the second connection end of the single-pole double-throw radio frequency switch is used to conduct and output the fourth radio frequency signal; The input end of the first low-noise amplifier and the input end of the second low-noise amplifier jointly serve as the input end of the RF power splitter module, the first connection end of the single-pole double-throw RF switch is connected to the output end of the first single-pole single-throw RF switch and serves as the first output end of the RF power splitter module, and the second connection end of the single-pole double-throw RF switch is connected to the output end of the second single-pole single-throw RF switch and serves as the second output end of the RF power splitter module.

8. A radio frequency receiving system, characterized in that: The radio frequency receiving system includes an antenna, a switch unit, a duplexer, the radio frequency power splitter module according to claim 7, a transceiver and a baseband processor; The antenna is used to receive radio frequency signals; The first connection end of the switch unit is connected to the antenna and is used to select an output channel; The input end of the duplexer is connected to the second connection end of the switch unit, and is used to filter noise of the received radio frequency signal; The input end of the RF power splitter module is connected to the output end of the duplexer; The input end of the transceiver is respectively connected to the first output end of the RF power splitter module and the second output end of the RF power splitter module, and is used to receive the RF signal sent by the RF power splitter module and send the received RF signal to the baseband processor; The input end of the baseband processor is connected to the output end of the transceiver, and is used for processing and storing data of the received radio frequency signal.

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