A dual architecture compatible radio frequency front end architecture

Abstract

The utility model relates to a kind of compatible double-architecture radio frequency front-end architecture, to improve the flexibility and compatibility of radio frequency system under different working modes;The architecture includes radio frequency front-end module, and radio frequency front-end module contains transmitting and receiving port, radio frequency switch port, low noise amplifier, power amplifier, first radio frequency switch, second radio frequency switch, antenna port and front-end transmitting port;Low noise amplifier is connected with transmitting and receiving port, and signal is amplified under receiving mode;First radio frequency switch is connected low noise amplifier with power amplifier, according to working mode switching signal path, avoid low noise amplifier and power amplifier work simultaneously;Second radio frequency switch connects power amplifier with antenna port, and signal transmission is to antenna;Front-end transmitting port sends signal through power amplifier.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency power amplifier technology, and more specifically to a radio frequency front-end architecture compatible with dual architectures. Background Technology

[0002] In applications with high integration and demanding performance requirements, the flexibility and compatibility of the RF front-end architecture become particularly important; traditional RF front-end architectures often suffer from problems such as complex design and switching, high cost, and poor compatibility.

[0003] Existing RF front-end architectures typically employ discrete component solutions, with functional modules such as low-noise amplifiers, power amplifiers, RF switches, and filters designed and laid out independently. While this design initially met the requirements for multiple frequency bands and standards, it has become less compatible and less integrated with the development of communication technologies. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-architecture RF front-end architecture to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model proposes a dual-architecture compatible radio frequency front-end architecture, including a radio frequency front-end module; The radio frequency front-end module includes a transmit / receive port, a radio frequency switch port, a low-noise amplifier, a power amplifier, a first radio frequency switch, a second radio frequency switch, an antenna port, and a front-end transmit port; The low-noise amplifier is connected to the transmit / receive port and amplifies the received signal; the first RF switch connects the low-noise amplifier and the power amplifier and is used to switch the signal path according to the working mode; the second RF switch connects the power amplifier and the antenna port, and the front-end transmit port is connected to the power amplifier to transmit the signal.

[0006] As a preferred technical solution of this utility model, the selection of the first radio frequency switch control signal path avoids the simultaneous operation of the low noise amplifier and the power amplifier.

[0007] As a preferred embodiment of this invention, the second radio frequency switch transmits the signal output by the power amplifier to the antenna port according to the transmission mode.

[0008] As a preferred embodiment of this invention, the radio frequency switch port can be configured to be floating, short-circuited, or connected to a 50-ohm load to control signal flow.

[0009] The beneficial effects of this utility model are as follows: This invention, through the ingenious design of the first and second RF switches, enables the architecture to switch signal paths according to different operating modes, thereby avoiding the simultaneous operation of the low-noise amplifier and the power amplifier, and ensuring the efficiency and stability of the signal amplification and transmission process. The adjustable configuration of the RF switch port allows the architecture to adapt to the needs of different RF systems. It not only supports traditional separate RF architectures but is also compatible with RF architectures with shared TX / RX ports, enhancing the flexibility and adaptability of RF systems. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the RX connection between this utility model and the radio frequency SOC; Figure 3 This is a schematic diagram of the ANT connection between this utility model and the radio frequency SOC; Figure 4 This is a schematic diagram of the second architecture of this utility model.

[0011] Reference numerals in the attached diagram: 1. Transmit / receive port; 2. RF switch port; 3. Low-noise amplifier; 4. Power amplifier; 5. First RF switch; 6. Second RF switch; 7. Antenna port; 8. Front-end transmit port. Detailed Implementation Example 1

[0012] like Figures 1-2 As shown, this embodiment provides an RF front-end module that works in conjunction with an RF SOC architecture with separate transmit and receive ports, enabling efficient switching between signal reception and transmission. The RF front-end module is externally positioned between the transmit and receive ports of the RF SOC, optimizing the signal path and improving system performance and compatibility. The RF front-end module is connected as follows: the low-noise amplifier 3 is connected to the transmit / receive port 1 and amplifies the received signal; the first RF switch 5 is connected to the low-noise amplifier 3 and the power amplifier 4 and is used to switch the signal path according to the working mode; the second RF switch 6 is connected to the power amplifier 4 and the antenna port 7, and the front-end transmit port 8 is connected to the power amplifier 4 and transmits the signal through the power amplifier 4.

[0013] The working principle of this utility model is as follows: When the RF system is in receive mode, the transmit / receive port 1 of the RF SOC is connected to the transmit / receive port 1 of the RF front-end module to receive signals; the signals enter the low-noise amplifier 3 through the second RF switch 6 and are amplified in the low-noise amplifier 3. The first RF switch 5 is turned on to ensure that the signal is transmitted from the low-noise amplifier 3 to the receiving port of the RF SOC; at the same time, the RF switch port 2 can be set to floating, short-circuited or connected to a 50-ohm load as needed to optimize the signal path and matching impedance. When the RF system is in transmit mode, the RF SOC transmits a signal to the power amplifier 4 through the input port. The first RF switch 5 switches to the transmit path, allowing the signal to enter the power amplifier 4 for gain. The amplified signal is then transmitted to the antenna port 7 through the second RF switch 6 and transmitted through the antenna. Example 2

[0014] like Figure 3 As shown, this embodiment provides an RF front-end module, which is externally placed in the architecture of the RF SOC's transmit and receive ports combined into one port, and optimizes system performance through precise signal path switching; in this embodiment, the transmit and receive port 1 of the RF SOC is directly connected to the transmit and receive port 1 of the RF front-end module, and the RF switch port 2 is connected to the transmit port of the power amplifier 4, further optimizing the compatibility and signal transmission efficiency of the RF system. The working principle of this embodiment is as follows: In receive mode, the transmit / receive port 1 of the RF SOC is connected to the transmit / receive port 1 of the RF front-end module to receive signals from the antenna; the signal enters the low noise amplifier 3 through the second RF switch 6 and is amplified in the LNA; the first RF switch 5 is turned on to ensure that the signal is transmitted from the low noise amplifier 3 to the receive port of the RF SOC for processing; In transmit mode, the transmit port of the RF SOC receives a signal input to the power amplifier 4 and is switched to the transmit path via the first RF switch 5. After the signal is amplified by the power amplifier 4, it is transmitted to the antenna port 7 via the RF switch port 2 and the second RF switch 6, and then transmitted via the antenna. Example 3

[0015] like Figure 4 As shown, this embodiment provides a radio frequency front-end module with a different architecture layout compared to the radio frequency front-end module design in Embodiment 1. In this embodiment, the transmit / receive port 1 is directly connected to the power amplifier 4 and switched by the first radio frequency switch 5. When receiving a signal, the signal first enters the second radio frequency switch 6 and then is transmitted to the low noise amplifier 3 for amplification. In this embodiment, the second radio frequency switch 6 is used to select the signal to be transmitted from the antenna to the low noise amplifier 3 for amplification in the receive mode, while the first radio frequency switch 5 controls the signal to be transmitted from the power amplifier 4 to the antenna for transmission. The working principle of this embodiment is as follows: In receive mode, the transmit / receive port 1 of the RF SOC is connected to the transmit / receive port 1 of the RF front-end module to receive signals from the antenna; the signal first enters the RF front-end module and is transmitted to the low-noise amplifier 3 for amplification through the second RF switch 6; the first RF switch 5 is turned on to ensure that the signal is transmitted from the low-noise amplifier 3 to the receive port of the RF SOC for subsequent processing. In transmit mode, the transmit port of the RF SOC inputs the signal to the power amplifier 4; the first RF switch 5 switches so that the signal path is directed to the power amplifier 4. After the signal is amplified by the power amplifier 4, it is transmitted to the antenna port 7 through the second RF switch 6 and then transmitted through the antenna.

[0016] Compared with Embodiments 1 and 2, the structural design of Embodiment 3 has greater flexibility and is compatible with more types of RF SOC architectures. In particular, in RF SOC architectures where the transmit and receive ports are combined into one port, it can work efficiently to adapt to different signal transmission requirements and meet the needs of various wireless communication applications.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-architecture compatible radio frequency front-end architecture, including a radio frequency front-end module; The radio frequency front-end module includes a transmit / receive port (1), a radio frequency switch port (2), a low noise amplifier (3), a power amplifier (4), a first radio frequency switch (5), a second radio frequency switch (6), an antenna port (7), and a front-end transmit port (8). Its features are, The low-noise amplifier (3) is connected to the transmit / receive port (1) and amplifies the received signal; the first RF switch (5) is connected to the low-noise amplifier (3) and the power amplifier (4) and is used to switch the signal path according to the working mode; the second RF switch (6) is connected to the power amplifier (4) and the antenna port (7), and the front-end transmit port (8) is connected to the power amplifier (4) and transmits the signal through the power amplifier (4).

2. The dual-architecture compatible RF front-end architecture according to claim 1, characterized in that, The first RF switch (5) controls the selection of the signal path to avoid the low-noise amplifier (3) and the power amplifier (4) working at the same time.

3. The dual-architecture compatible RF front-end architecture according to claim 1, characterized in that, The second radio frequency switch (6) transmits the signal output from the power amplifier (4) to the antenna port (7) according to the transmission mode.

4. The dual-architecture compatible RF front-end architecture according to claim 1, characterized in that, The radio frequency switch port (2) can be configured to be left floating, short-circuited, or connected to a 50-ohm load to control signal flow.

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