CN216290900U - 5G radio frequency front end module - Google Patents
5G radio frequency front end module Download PDFInfo
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- CN216290900U CN216290900U CN202122802545.2U CN202122802545U CN216290900U CN 216290900 U CN216290900 U CN 216290900U CN 202122802545 U CN202122802545 U CN 202122802545U CN 216290900 U CN216290900 U CN 216290900U
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Abstract
The utility model provides a 5G radio frequency front-end module, which comprises: the device comprises a power amplifier, a filter, a low noise amplifier, a switch, a logic controller, a power detector and a standing wave detector; the small base station radio frequency front end comprises a transmitting loop and a receiving loop; in a transmitting loop, a signal comes out of a transceiver and is amplified through a power amplifier to obtain an amplified signal; the amplified signal passes through a filter, and after the out-of-band signal is filtered, a filtered signal is obtained; the filtered signal is transmitted out through the antenna through the switch; in a receiving loop, a signal is input from an antenna port, passes through a switch and is amplified by a low-noise amplifier to obtain an amplified signal; the amplified signal is input into the transceiver. The radio frequency front end radio frequency module overcomes the defects of the existing 5G small base station radio frequency front end, simplifies the design, and realizes the characteristics of small volume, low cost and low power consumption while meeting the performance requirements.
Description
Technical Field
The utility model relates to the field of communication, in particular to a 5G radio frequency front-end module.
Background
With the advent of the 5G era, 5G base station construction is the core of the entire 5G network, with 5G small base stations being an important component of the 5G network and being numerous.
Compared with the 4G small base station, the 5G small base station adopts MIMO, has large bandwidth and more channels, has more types and numbers of radio frequency devices and complex process on the one hand, and puts forward higher requirements on the radio frequency devices on the other hand, thereby not only requiring high performance, but also requiring small volume and low power consumption. This brings unprecedented challenges to the design of 5G small base station radio frequency devices.
At present, the design of the radio frequency front end of the 5G small base station still adopts the structure of the 4G era, and is still realized by adopting discrete devices. Although the discrete device is easy to develop, the discrete device has the defects of high cost, large occupied space, large power consumption and the like. With the rapid development of 5G networks, small base stations, especially pico base stations with smaller power, will exhibit explosive growth. In this situation, the design of the radio frequency front end needs to be small in size, low in cost and low in power consumption. The existing design structure and mode of the radio frequency front end of the small base station can not meet the requirement of future large-scale development.
The existing 5G small base station radio frequency front end mainly has a transmitting loop and a receiving loop. In the transmitting loop, a signal comes out from a transceiver, passes through a power amplifier, amplifies the signal, passes through a filter, filters out an out-of-band signal, passes through a switch, and finally transmits the signal through an antenna. In the receiving loop, signals enter from an antenna port, pass through a switch, are amplified through a low-noise amplifier, and are finally processed for a transceiver. The switch is used for switching signals back and forth in the transmitting loop and the receiving loop according to the working state. At present, the radio frequency front end of a 5G small base station is built by adopting discrete devices, and a power amplifier, a switch, a filter, a low-noise amplifier and the like are all discrete devices.
The existing discrete device has the following main defects: the cost is high; the circuit board area occupied by the discrete device is large, and miniaturization cannot be realized, so that the circuit board cannot be used in indoor scenes such as families and offices; the structure is complicated, and the development cycle is long.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a 5G radio frequency front end module that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, there is provided a 5G radio frequency front end module, the front end module comprising: a power amplifier, a filter, a low noise amplifier, a switch;
the small base station radio frequency front end comprises a transmitting loop and a receiving loop;
in the transmitting loop, a signal comes out of a transceiver and passes through the power amplifier to be amplified to obtain an amplified signal;
the amplified signal passes through the filter, and after out-of-band signals are filtered, filtered signals are obtained;
the filtered signal passes through the switch and is transmitted out through an antenna;
in the receiving loop, a signal is input from the antenna port, passes through the switch and is amplified by the low-noise amplifier to obtain an amplified signal; the amplified signal is input into the transceiver.
Optionally, the front-end module further includes: and the power detector is arranged at the outlet end of the power amplifier and used for realizing the detection of the output power of the power amplifier.
Optionally, the front-end module further includes: and the standing wave detector is arranged at the outlet of the switch and used for monitoring the impedance of the signal at different frequency points and realizing the optimized control of the output power of the power amplifier at each frequency point through the external impedance control.
Optionally, one input end of the switch is a single-pole double-throw switch, and is connected to the output end of the filter, the other input end of the switch is connected to the input end of the low noise amplifier, and the output end of the switch is a single-pole double-throw switch, and is connected to the antenna port.
Optionally, the front-end module further includes: and the logic controller is respectively connected with the power amplifier, the low noise amplifier and the switch.
The utility model provides a 5G radio frequency front-end module, which comprises: a power amplifier, a filter, a low noise amplifier, a switch; the small base station radio frequency front end comprises a transmitting loop and a receiving loop; in the transmitting loop, a signal comes out of a transceiver and passes through the power amplifier to be amplified to obtain an amplified signal; the amplified signal passes through the filter, and after out-of-band signals are filtered, filtered signals are obtained; the filtered signal passes through the switch and is transmitted out through an antenna; in the receiving loop, a signal is input from the antenna port, passes through the switch and is amplified by the low-noise amplifier to obtain an amplified signal; the amplified signal is input into the transceiver. The defect of the radio frequency front end of the existing 5G small base station is overcome, compared with the design of the existing discrete device, the design is greatly simplified, and the characteristics of small volume, low cost and low power consumption are realized while the performance requirement is met.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a 5G rf front end module according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terms "comprises" and "comprising," and any variations thereof, in the present description and claims and drawings are intended to cover a non-exclusive inclusion, such as a list of steps or elements.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the schematic structural diagram of the radio frequency front end module of the 5G small base station proposed by the present invention is shown. Including power amplifiers, filters, low noise amplifiers, switches, logic controllers, power detectors, and standing wave detectors. The radio frequency front end of the 5G small base station provided by the utility model mainly comprises a transmitting loop and a receiving loop, wherein the transmitting loop is a TX loop and the receiving loop is an RX loop as shown in the figure.
In the transmitting loop, a signal comes out from a transceiver, passes through a power amplifier, amplifies the signal, passes through a filter, filters out an out-of-band signal, passes through a switch, and finally transmits the signal through an antenna. And a power detector is arranged at the outlet of the power amplifier to realize the detection of the output power of the power amplifier. The specific connection mode is as follows: the input end of the power amplifier is connected with the TX output end of the external transceiver of the module, the output end of the power amplifier is connected with the input end of the filter, and the output end of the power amplifier is also connected with the input end of the power detector. The output end of the filter is connected with one input end of a single-pole double-throw switch. The output end of the power detector is connected with corresponding circuits outside the module. The output end of the single-pole double-throw switch is connected with an antenna port outside the module.
In the receiving loop, signals enter from an antenna port, pass through a switch, are amplified through a low-noise amplifier, and are finally processed for a transceiver. The specific connection mode is as follows: the input end of the low-noise amplifier is connected with the other input end of the single-pole double-throw switch; the output end of the low noise amplifier is connected with the RX input end of the external transceiver of the module.
The single-pole double-throw switch is used for switching signals back and forth in the transmitting loop and the receiving loop according to the working state.
And a standing wave detector is arranged at the outlet of the switch, the impedance at different frequency points can be obtained by detecting the standing wave, and the optimal control of the output power of the power amplifier at each frequency point is realized by external impedance control.
The logic controller is used for controlling the on and off of the power amplifier and the low noise amplifier and the working logic of the single-pole double-throw switch, thereby controlling the on and off of the transmitting loop and the receiving loop. The specific control mode is as follows: when the transmitting loop works, the logic controller sends a signal, the power amplifier is started, the switch is switched to the transmitting loop, and the low-noise amplifier is closed; when the receiving loop works, the logic controller sends out a signal to turn on the low noise amplifier, and switches the switch to the receiving loop, and turns off the power amplifier.
The utility model provides a fully integrated radio frequency front-end module, which is manufactured by adopting gallium arsenide (GaAs), MEMS, SOI, CMOS and other processes, and then adopts packaging processes such as flip chip process, fan-out process and SiP process to integrate the radio frequency devices together to form a complete radio frequency front-end module. Compared with the design of the prior adopted discrete device, the design is greatly simplified, the performance requirement is met, and meanwhile, the volume is small and the cost is low.
Has the advantages that: the 5G fully integrated radio frequency front end module integrates devices such as a power amplifier, a switch, a low noise amplifier, a power detector, a filter, a logic controller and the like; the defect of the radio frequency front end of the existing 5G small base station is overcome, compared with the design of the existing discrete device, the design is greatly simplified, and the characteristics of small volume, low cost and low power consumption are realized while the performance requirement is met.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A 5G radio frequency front end module, the front end module comprising: a power amplifier, a filter, a low noise amplifier, a switch;
the small base station radio frequency front end comprises a transmitting loop and a receiving loop;
in the transmitting loop, a signal comes out of a transceiver and passes through the power amplifier to be amplified to obtain an amplified signal;
the amplified signal passes through the filter, and after out-of-band signals are filtered, filtered signals are obtained;
the filtered signal passes through the switch and is transmitted out through an antenna;
in the receiving loop, a signal is input from the antenna port, passes through the switch and is amplified by the low-noise amplifier to obtain an amplified signal; the amplified signal is input into the transceiver.
2. The 5G radio frequency front end module according to claim 1, wherein the front end module further comprises: and the power detector is arranged at the outlet end of the power amplifier and used for realizing the detection of the output power of the power amplifier.
3. The 5G radio frequency front end module according to claim 1, wherein the front end module further comprises: and the standing wave detector is arranged at the outlet of the switch and used for monitoring the impedance of the signal at different frequency points and realizing the optimized control of the output power of the power amplifier at each frequency point through the external impedance control.
4. The 5G radio frequency front end module according to claim 1, wherein one input terminal of the switch is a single-pole double-throw switch connected to the output terminal of the filter, the other input terminal of the switch is connected to the input terminal of the low noise amplifier, and the output terminal of the switch is a single-pole double-throw switch connected to the antenna port.
5. The 5G radio frequency front end module according to claim 1, wherein the front end module further comprises: and the logic controller is respectively connected with the power amplifier, the low noise amplifier and the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122802545.2U CN216290900U (en) | 2021-11-16 | 2021-11-16 | 5G radio frequency front end module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122802545.2U CN216290900U (en) | 2021-11-16 | 2021-11-16 | 5G radio frequency front end module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216290900U true CN216290900U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122802545.2U Active CN216290900U (en) | 2021-11-16 | 2021-11-16 | 5G radio frequency front end module |
Country Status (1)
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|---|---|
| CN (1) | CN216290900U (en) |
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2021
- 2021-11-16 CN CN202122802545.2U patent/CN216290900U/en active Active
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