CN212343763U - Wireless communication circuit and electronic equipment - Google Patents
Wireless communication circuit and electronic equipment Download PDFInfo
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- CN212343763U CN212343763U CN202020403885.0U CN202020403885U CN212343763U CN 212343763 U CN212343763 U CN 212343763U CN 202020403885 U CN202020403885 U CN 202020403885U CN 212343763 U CN212343763 U CN 212343763U
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- communication circuit
- wireless communication
- control chip
- noise amplifier
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Abstract
The utility model discloses a wireless communication circuit and electronic equipment, this wireless communication circuit include wireless control chip, antenna and switching element, switching element's third end and antenna connection, its characterized in that: the wireless communication circuit further comprises a low-noise amplifier, a power amplifier and a compatible resistor, the first end of the wireless control chip is connected with the first end of the switch element through the power amplifier, the second end of the wireless control chip is connected with the second end of the switch element through the low-noise amplifier, the compatible resistor is connected to the two ends of the power amplifier in parallel, FEM is replaced by a discrete device, the function of improving the WIFI and 5G index performance is achieved, meanwhile, the design cost is saved, and the competitiveness of products is improved.
Description
Technical Field
The utility model belongs to the electronic communication field, more specifically says, the utility model relates to a wireless communication circuit and electronic equipment.
Background
With the rapid development of the current domestic wireless communication field, the WIFI and 5G communication technologies are more and more widely applied, and in order to improve the index performance of the WIFI and 5G communication technologies, a Front-end module (Front-end module) integrating a PA and a LNA is usually added at present to complete the transmission amplification and the reception amplification of radio frequency signals. However, the additional FEM causes the cost of the smart phone product to increase, and consumers need to spend more expenses when purchasing the product, thereby greatly weakening the competitiveness of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a wireless communication circuit and electronic equipment who saves the cost, has product competitiveness is provided.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
a wireless communication circuit and an electronic device comprise a wireless control chip, an antenna and a switch element, wherein the third end of the switch element is connected with the antenna, the wireless communication circuit also comprises a low noise amplifier, a power amplifier and a compatible resistor, the first end of the wireless control chip is connected with the first end of the switch element through the power amplifier, the second end of the wireless control chip is connected with the second end of the switch element through the low noise amplifier, and the compatible resistor is connected in parallel at two ends of the power amplifier.
In one embodiment, the first terminal of the wireless control chip is connected to the input terminal of the power amplifier, the output terminal of the power amplifier is connected to the first terminal of the switching element, the second terminals of the switching element are respectively connected to the input terminal of the low noise amplifier and one terminal of the compatible resistor, and the second terminals of the wireless control chip are respectively connected to the output terminal of the low noise amplifier and the other terminal of the compatible resistor.
In one embodiment, a low noise amplifier module compatible with the low noise amplifier is arranged inside the wireless control chip.
The utility model also provides an electronic equipment, including above-mentioned wireless communication circuit.
The utility model provides a wireless communication circuit and electronic equipment, through adopting low noise amplifier, discrete devices such as power amplifier and compatible resistance replace current FEM, and utilize the low noise amplifier module of wireless control chip from taking can compatible outside low noise amplifier, when receiving sensitivity (RX sense) satisfies the requirement, can save outside low noise amplifier, walk compatible resistance route, realized replacing FEM with discrete device, reach the function that promotes WIFI and 5G index performance, save design cost, promote the competitiveness of product.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the present invention before improvement.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, for example, the shapes and structures of the components, the mutual positions and connection relationships among the components, the functions and working principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to understand the concept and technical solutions of the present invention more completely, accurately and deeply.
Fig. 1 is a schematic view of the present invention, and fig. 2 is a schematic view of the present invention before the improvement. The wireless communication circuit shown in fig. 1-2 is applied to electronic devices including various smart phone products. WIFI and 5G index performance can be improved through the wireless communication circuit and the electronic equipment, design cost is saved, and competitiveness of products is improved.
The utility model provides a pair of wireless communication circuit, including wireless control chip (WIFI IC), Antenna (ANT) and SWITCH element (SWITCH), the third end and Antenna (ANT) of SWITCH element (SWITCH) are connected, this wireless communication circuit still includes Low Noise Amplifier (LNA), Power Amplifier (PA) and compatible resistance (R), Power Amplifier (PA) are passed through to the first end of wireless control chip (WIFI IC) and are connected with the first end of SWITCH element (SWITCH), the second end of wireless control chip (WIFI IC) is connected through the second end of Low Noise Amplifier (LNA) with SWITCH element (SWITCH), compatible resistance (R) connect in parallel at the both ends of Power Amplifier (PA).
Further, a first terminal of the wireless control chip (WIFI IC) is connected to an input terminal of the Power Amplifier (PA), an output terminal of the Power Amplifier (PA) is connected to a first terminal of the SWITCH element (SWITCH), and a second terminal of the SWITCH element (SWITCH) is respectively connected to an input terminal of the Low Noise Amplifier (LNA) and one terminal of the compatible resistor (R); and the second end of the wireless control chip (WIFI IC) is respectively connected with the output end of the Low Noise Amplifier (LNA) and the other end of the compatible resistor (R).
Further, a low noise amplifier module compatible with the low noise amplifier is arranged inside the wireless control chip.
Specifically, a signal transmitted from the wireless control chip (WIFI IC) is amplified by the Power Amplifier (PA), reaches the SWITCH element (SWITCH), and is transmitted via the Antenna (ANT). After the signal that Antenna (ANT) accepted passes through switching element (SWITCH) conversion, accord with the condition of the Low Noise Amplifier (LNA) of taking certainly of wireless control chip (WIFI IC), then this signal directly gets back to wireless control chip (WIFI IC) through compatible resistance (R), no longer through the Low Noise Amplifier (LNA) with compatible resistance (R) parallel connection, Low Noise Amplifier (LNA) is out of work.
TABLE 1
As can be seen from the data in table 1, the power of the same EVM (vector error) is higher in the wireless communication circuit provided by the present invention in the 36 channel and 165 channel, and is approximately the same as the EVM (vector error) in the 64 channel; at 36 channels, RX (reception sensitivity) is smaller, and at 64 channels and 165 channels, RX (reception sensitivity) is the same. Consequently, used can know above-mentioned data root system, the utility model provides a wireless communication circuit can realize the function that the FEM scheme corresponds, can be in order to realize promoting WIFI and 5G's index performance's function, better even.
The utility model provides a wireless communication circuit and electronic equipment, through adopting low noise amplifier, discrete devices such as power amplifier and compatible resistance replace current FEM, and utilize the low noise amplifier module of wireless control chip from taking can compatible outside low noise amplifier, when receiving sensitivity (RX sense) satisfies the requirement, can save outside low noise amplifier, walk the compatible resistance route, realized replacing FEM with the discrete device of lower cost, reach the function that promotes WIFI and 5G index performance, save design cost simultaneously, the competitiveness of product has been promoted.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (4)
1. A wireless communication circuit comprising a wireless control chip, an antenna, and a switching element, wherein a third terminal of the switching element is connected to the antenna, the wireless communication circuit comprising: the wireless communication circuit further comprises a low noise amplifier, a power amplifier and a compatible resistor, wherein the first end of the wireless control chip is connected with the first end of the switch element through the power amplifier, the second end of the wireless control chip is connected with the second end of the switch element through the low noise amplifier, and the compatible resistor is connected in parallel with the two ends of the power amplifier.
2. The wireless communication circuit according to claim 1, wherein a first terminal of said wireless control chip is connected to an input terminal of said power amplifier, an output terminal of said power amplifier is connected to a first terminal of said switching element, second terminals of said switching element are connected to an input terminal of said low noise amplifier and one terminal of said compatible resistor, respectively, and a second terminal of said wireless control chip is connected to an output terminal of said low noise amplifier and the other terminal of said compatible resistor, respectively.
3. The wireless communication circuit according to claim 1, wherein a low noise amplifier module compatible with the low noise amplifier is provided inside the wireless control chip.
4. An electronic device comprising the wireless communication circuit of any of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020403885.0U CN212343763U (en) | 2020-03-26 | 2020-03-26 | Wireless communication circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020403885.0U CN212343763U (en) | 2020-03-26 | 2020-03-26 | Wireless communication circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212343763U true CN212343763U (en) | 2021-01-12 |
Family
ID=74084747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020403885.0U Active CN212343763U (en) | 2020-03-26 | 2020-03-26 | Wireless communication circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212343763U (en) |
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2020
- 2020-03-26 CN CN202020403885.0U patent/CN212343763U/en active Active
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