CN211352189U - Radio frequency communication circuit, terminal wireless network assembly and electronic equipment - Google Patents

Abstract

The utility model discloses a radio frequency communication circuit, including the wireless radio frequency chip, the wave filter, integrated form radio frequency front end module, the triplexer, external coupler and radio frequency antenna, the radio frequency antenna connects the first signal end of triplexer through external coupler, the second signal end of triplexer connects the 2.4G signal output pin and the 2.4G signal reception pin of wireless radio frequency chip through the wave filter, the third signal end of triplexer connects the 5G signal output pin and the 5G signal reception pin of wireless radio frequency chip through integrated form radio frequency front end module, the power signal output part of external coupler is connected to the power detection pin of wireless radio frequency chip. The utility model discloses still disclose a terminal wireless network subassembly and electronic equipment including above-mentioned radio frequency communication circuit. The utility model discloses radio frequency communication circuit redesign to the WIFI platform, the cost is not only reduced, and the power degree of accuracy is high moreover, and the overall arrangement of PCB board is not influenced yet, consequently more is applicable to the cell-phone market that the competition is fierce, has improved the competitiveness of product.

Description

Radio frequency communication circuit, terminal wireless network assembly and electronic equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of communication, especially, relate to a radio frequency communication circuit, terminal wireless network component and electronic equipment.

[ background of the invention ]

With the development of scientific technology, the WIFI platform needs to be compatible with 2.4G WIFI signals and 5G WIFI signals. The radio frequency communication framework that present wifi platform that leads to adopts does: a Wireless connectivity network chip (WCN for short) and a QM chipset, such as a WCN3980 chip and a QM48858 chip. The radio frequency communication scheme of the wifi platform is as follows: the 2.4G WIFI signal uses a built-in integrated Front-End Module (FEM for short), while the 5G WIFI signal uses an external integrated Front-End Module. Specifically, the signal output path of the 2.4G WIFI signal is that the WCN3980 chip outputs a 2.4G WIFI signal, and then the signal reaches the antenna end through the filter and the triplexer in sequence for transmission, and the signal receiving path is that the antenna end receives the 2.4G WIFI signal, and then the signal reaches the WCN3980 chip through the triplexer and the filter in sequence. The signal output path of the 5G WIFI signal is that a WCN3980 chip outputs a 5G WIFI signal, then the 5G WIFI signal is amplified by an external FEM (very high performance memory), namely a QM48858 chipset, and then the 5G WIFI signal reaches an antenna end through a triplexer to be transmitted, and power detection is acquired into the WCN3980 chip by the QM48858 chipset at the moment; and the signal receiving path is that after the 5G wifi signal is received by the antenna end, the signal is sent to the QM48858 chipset through the triplexer for amplification, and then enters the WCN3980 chip for demodulation. Although the design scheme is relatively simple to debug, the cost is high, and the product competitiveness is influenced.

Accordingly, there is a need for a radio frequency communication circuit that overcomes the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims at providing a radio frequency communication circuit, terminal wireless network component and electronic equipment have solved the higher technical problem of current wifi chip cost.

In order to realize the above object, the utility model provides a radio frequency communication circuit, including wireless radio frequency chip, wave filter, integrated form radio frequency front end module, triplexer, external coupler and radio frequency antenna, the first signal end of triplexer is connected to the radio frequency antenna through external coupler, the second signal end of triplexer is through 2.4G signal output pin and the 2.4G signal reception pin of wave filter connection wireless radio frequency chip, the third signal end of triplexer is through 5G signal output pin and the 5G signal reception pin of integrated form radio frequency front end module connection wireless radio frequency chip, the power detection pin of wireless radio frequency chip is connected external coupler's power signal output part.

In a preferred embodiment, the wireless radio frequency chip comprises a high-pass WCN series chip, a Botong BCM series chip, a Unico MT series chip and a Ruyi RTL series chip.

In a preferred embodiment, the wireless radio frequency chip is a WCN3980 chip.

In a preferred embodiment, the integrated rf front-end module is an RTC chip.

In a preferred embodiment, the integrated rf front-end module is an RTC7637 chip.

A second aspect of the utility model provides a terminal wireless network component, terminal wireless network component include above the radio frequency communication circuit.

A third aspect of the present invention provides an electronic device, the electronic device comprising the above terminal wireless network component.

The utility model discloses radio frequency communication circuit to the WIFI platform has carried out the design again, and not only the cost is reduced, and the power degree of accuracy is high moreover, and the overall arrangement of PCB board is not influenced yet, consequently more is applicable to the cell-phone market that the competition is fierce, has improved the competitiveness of product.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram of a radio frequency communication circuit according to an embodiment of the present invention;

FIG. 2 is a layout diagram of a PCB of a prior art RF communication circuit;

fig. 3 is a layout diagram of a PCB board of a radio frequency communication circuit according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a terminal wireless network component according to another embodiment of the present invention;

fig. 5 is a schematic view of an electronic device according to another embodiment of the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Fig. 1 is the embodiment of the utility model provides a radio frequency communication circuit's schematic diagram, as shown in fig. 1, including wireless radio frequency chip WCN3980, wave filter, integrated form radio frequency front end module RTC7637, triplexer, external coupler and radio frequency antenna, the first signal end Ta of triplexer is connected through external coupler to the radio frequency antenna, the second signal end Tb of triplexer connects wireless radio frequency chip WCN 3980's 2.4G signal output pin and 2.4G signal reception pin through the wave filter, the third signal end Tc of triplexer connects wireless radio frequency chip WCN 3980's 5G signal output pin and 5G signal reception pin through integrated form radio frequency front end module RTC7637, wireless radio frequency chip WCN 3980's power detection pin is connected external coupler's power signal output part.

Specifically, the WIFI platform of this embodiment needs compatible 2.4G WIFI signal and 5G WIFI signal, and the signal output path of 2.4G WIFI signal is that WCN3980 chip outputs 2.4G WIFI signal, then reaches the antenna end in proper order after wave filter, triplexer and external coupler and launches, and the signal receiving path is that the antenna end reaches the WCN3980 chip after receiving 2.4G WIFI signal, in proper order after external coupler, triplexer and wave filter. Meanwhile, a signal output path of the 5G WIFI signal is that a WCN3980 chip outputs a 5G WIFI signal, then the 5G WIFI signal is amplified by an external FEM (real time clock), namely RTC7637, and then reaches an antenna end through a triplexer and an external coupler to be transmitted, and power detection at the moment is acquired into the WCN3980 chip by the external coupler; and the signal receiving path is that after receiving a 5G wifi signal at an antenna end, the signal is sent to the RTC7637 for amplification through the external coupler and the triplexer, and then enters the WCN3980 chip for demodulation.

In the above embodiment, the RTC7637 chip with power up is selected as the integrated rf front-end module, the RTC7637 chip has a built-in power amplifier, filter, etc. and is relatively low in price and simple in debugging, and the RTC7637 chip is selected to be combined with the external coupler and replace the original QM48858 chipset, so that not only can the very high power accuracy be maintained, but also the cost can be effectively reduced by more than $ 0.6. Meanwhile, the RTC7637 chip is convenient to route on a Printed Circuit Board (PCB), so that the layout space of the PCB can be saved, and the performance is easier to control. Fig. 2 is a layout diagram of a PCB board of a radio frequency communication circuit in the prior art, and fig. 3 is a layout diagram of a PCB board of a radio frequency communication circuit provided by the present invention, wherein U1 is WCN3980, U4 is QM48858, U2 is RTC7637, and U3 is an external coupler. As shown in fig. 2 and fig. 3, although this solution adds one more external coupler than the original design solution, it is fully laid down for the layout of the PCB board because the device size of RTC7637 is smaller, 2.3mm 0.4mm, and the device size of the external coupler is also smaller, 0.65mm 0.5mm 0.3 mm; the QM48858 chip set has the size of 3.0mm 0.638mm, and the layout sizes of the QM48858 chip set and the QM48858 chip set are almost the same, so that the QM48858 chip set does not occupy much space of a mobile phone circuit board, has strong practicability, is more suitable for the competitive mobile phone market, and improves the competitiveness of products.

The technical scheme of the present application is described in detail above by taking the WCN3980 wireless rf chip of the koutou corporation as an example. In fact, the technical scheme of this application can all use at other chip models and the blotong BCM series chip of the high leads to company WCN series, the department of work MT series chip, repa RTL series chip etc. and do not describe in detail here, but all are in the utility model discloses a within the scope of protection.

Fig. 4 is a schematic structural diagram of a terminal wireless network component according to another embodiment, as shown in fig. 4, the terminal wireless network component includes the radio frequency communication circuit described above. Other elements and connection structures of the terminal wireless network components are described in the existing documents and will not be described in detail.

Fig. 5 is a schematic structural diagram of an electronic device according to another embodiment of the present invention, as shown in fig. 5, the electronic device includes the terminal wireless network component described above, and the electronic device may be a mobile phone, a tablet, or the like.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims (7)

1. A radio frequency communication circuit is characterized by comprising a wireless radio frequency chip, a filter, an integrated radio frequency front end module, a triplexer, an external coupler and a radio frequency antenna, wherein the radio frequency antenna is connected with a first signal end of the triplexer through the external coupler, a second signal end of the triplexer is connected with a 2.4G signal output pin and a 2.4G signal receiving pin of the wireless radio frequency chip through the filter, a third signal end of the triplexer is connected with a 5G signal output pin and a 5G signal receiving pin of the wireless radio frequency chip through the integrated radio frequency front end module, and a power detection pin of the wireless radio frequency chip is connected with a power signal output end of the external coupler.

2. The radio frequency communication circuit according to claim 1, wherein the wireless radio frequency chip comprises a high-pass WCN series chip, a boston BCM series chip, a unico MT series chip, and a rui RTL series chip.

3. The radio frequency communication circuit according to claim 2, wherein the wireless radio frequency chip is a WCN3980 chip.

4. A radio frequency communication circuit according to any of claims 1-3, wherein the integrated radio frequency front end module is a power-on RTC chip.

5. The RF communication circuit according to claim 4, wherein the integrated RF front-end module is an RTC7637 chip.

6. A terminal wireless network component, characterized in that it comprises a radio frequency communication circuit according to any of claims 1-5.

7. An electronic device, characterized in that it comprises a terminal wireless network component according to claim 6.

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