Multifunctional wireless communication circuit

Abstract

The utility model discloses a multifunctional wireless communication circuit, which particularly relates to the field of wireless communication and comprises a radio frequency front-end module and a baseband processing module. According to the utility model, the radio frequency front end and the baseband processing module are integrated, the complete process from signal receiving to processing to signal sending is realized, the flexibility and the overall efficiency of the communication system are obviously improved, the system structure is simplified by the integrated design, the number of elements is reduced, the manufacturing cost and the maintenance difficulty are effectively reduced, and in addition, the communication efficiency is improved. The processing links such as filtering, amplifying and demodulating in the circuit are elaborately optimized, the stability and the anti-jamming capability of signals are enhanced, the high-quality communication effect can be kept even in a complex electromagnetic environment, and finally, the circuit can adapt to various wireless communication standards and requirements, has wide application prospects and is suitable for popularization and application. And powerful support is provided for the development of the wireless communication field.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless communication, and more specifically, to a multifunctional wireless communication circuit. Background Art

[0002] In the field of wireless communications, with the continuous advancement of technology and the continuous expansion of application scenarios, higher and higher requirements are placed on the performance and functions of wireless communication circuits. Traditional wireless communication circuits often have single functions and are difficult to meet the diverse needs of modern communication systems. For example, in some application scenarios, circuits are required to support multiple communication frequency bands and modulation methods at the same time to cope with compatibility issues between different devices and networks. In addition, with the rise of emerging fields such as the Internet of Things and smart homes, more stringent requirements are placed on the power consumption, volume and cost of wireless communication circuits.

[0003] However, existing wireless communication circuits often have the following defects in actual use: first, they have single functions and cannot meet complex and changeable communication needs; second, they are large in size, which is not conducive to application in miniaturized equipment; third, they have high power consumption, which limits the battery life and service life of the equipment; fourth, they are costly, which increases the market competition pressure of the product. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a multifunctional wireless communication circuit, which solves the problems raised in the above-mentioned background technology through the following scheme.

[0005] To achieve the above object, the utility model provides the following technical solution: a multifunctional wireless communication circuit, comprising:

[0006] The RF front-end module is used to receive wireless signals from the outside and send the signals after filtering and signal amplification to the baseband processing module.

[0007] The baseband processing module is used to demodulate the received RF signal, convert the signal transmitted by the RF front-end module into a digital signal for further processing, and modulate the digital signal to be sent into a RF signal.

[0008] Preferably, the RF front-end module includes a light-emitting diode D1, a light-emitting diode D2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, an inductor L2 and an NPN transistor Q1.

[0009] Preferably, one end of the inductor L1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to one end of the resistor R1, one end of the resistor R2 and the base of the NPN transistor Q1, the other end of the resistor R2 is connected to the transmitter of the NPN transistor Q1 and the ground GND, the other end of the resistor R1 is connected to one end of the capacitor C4, the cathode of the light-emitting diode D1 is connected to the anode of the light-emitting diode D2, the cathode of the light-emitting diode D2 is connected to the ground GND, the capacitor C2 and the capacitor C2 are connected in parallel to the light-emitting diode D1 and the light-emitting diode D2, one end of the resistor R3 is connected to one end of the NPN transistor Q1, the other end of the resistor R3 is connected to the capacitor C3 and one end of the resistor R4, the other end of the resistor R4 is connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is connected to the other end of the resistor R1.

[0010] Preferably, the baseband processing module includes a resistor R6, a resistor R7, a resistor R8, a resistor R5, a capacitor C5, a capacitor C6 and an amplifier A1.

[0011] Preferably, one end of the resistor R5 is connected to one end of the capacitor C5, the other end of the capacitor C5 is connected to one end of the resistor R6 and the positive input end of the amplifier A1, the other end of the resistor R6 is connected to the output end of the amplifier A1, the negative input end of the amplifier A1 is connected to one end of the capacitor C6, one end of the resistor R8 and one end of the resistor R7, the other end of the resistor R8 is connected to the other end of the capacitor C6 and the ground GND, and the other end of the resistor R7 is connected to the power supply VCC.

[0012] Technical effects and advantages of the utility model:

[0013] The RF front-end module of the utility model is mainly responsible for receiving wireless signals from the outside, filtering and signal amplification, and finally sending the processed signals to the baseband processing module. The external wireless signal is first received by the circuit, and the filtering circuit composed of the inductor L1 and the capacitor C1 performs preliminary filtering on the received signal to remove high-frequency noise and interference. The filtered signal is amplified by the amplifier circuit composed of resistors R1, R2 and NPN transistor Q1. The base of the transistor Q1 receives the filtered signal and is grounded through the resistor R2 to realize the signal amplification function. The capacitors C2 and C3 play the role of coupling and filtering in the circuit to ensure the stability and purity of the signal. The amplified signal passes through the resistors R3, R4, the inductor L2 and the capacitor C4 The output circuit is transmitted to the baseband processing module. The light-emitting diodes D1 and D2 are used for signal status indication, but they are not directly involved in the signal amplification process. Instead, they are used as auxiliary components. The baseband processing module is responsible for demodulating the received RF signal and converting the RF signal into a digital signal for further processing. It is also responsible for modulating the digital signal to be sent into an RF signal. The signal received from the RF front-end module first enters the positive input terminal of the amplifier A1 through the capacitor C5 and the resistor R5. The negative input terminal of the amplifier A1 is connected to the power supply VCC through the resistor R7 and is grounded through the resistor R8 and the capacitor C6 to form a negative feedback to ensure the stability and linearity of the amplification. The amplifier A1 demodulates the received RF signal into a baseband signal, that is, a digital signal.

[0014] The utility model realizes the complete process from signal reception to processing and then to transmission by integrating the RF front-end and baseband processing modules, which significantly improves the flexibility and overall efficiency of the communication system. Secondly, this integrated design simplifies the system structure and reduces the number of components, thereby effectively reducing the manufacturing cost and maintenance difficulty. Furthermore, the processing links such as filtering, amplification and demodulation in the circuit are carefully optimized to enhance the stability and anti-interference ability of the signal, and maintain high-quality communication effects even in complex electromagnetic environments. Finally, the circuit can adapt to a variety of wireless communication standards and requirements, has broad application prospects, and provides strong support for the development of the wireless communication field. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the radio frequency front-end module of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the baseband processing module of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of a complete embodiment of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] refer to Figure 1 A multifunctional wireless communication circuit shown includes a radio frequency front-end module and a baseband processing module.

[0021] The RF front-end module is used to receive wireless signals from the outside, and send the signals after filtering and signal amplification processing to the baseband processing module.

[0022] The baseband processing module is used to demodulate the received RF signal, convert the signal transmitted by the RF front-end module into a digital signal for further processing, and modulate the digital signal to be sent into a RF signal.

[0023] refer to Figure 2 The RF front-end module includes a light-emitting diode D1, a light-emitting diode D2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, an inductor L2 and an NPN transistor Q1.

[0024] One end of the inductor L1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to one end of the resistor R1, one end of the resistor R2 and the base of the NPN transistor Q1, the other end of the resistor R2 is connected to the emitter of the NPN transistor Q1 and the ground GND, the other end of the resistor R1 is connected to one end of the capacitor C4, the cathode of the light-emitting diode D1 is connected to the anode of the light-emitting diode D2, the cathode of the light-emitting diode D2 is connected to the ground GND, the capacitor C2 and the capacitor C2 are connected in parallel to the light-emitting diode D1 and the light-emitting diode D2, one end of the resistor R3 is connected to one end of the NPN transistor Q1, the other end of the resistor R3 is connected to the capacitor C3 and one end of the resistor R4, the other end of the resistor R4 is connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is connected to the other end of the resistor R1.

[0025] refer to Figure 3 The baseband processing module includes a resistor R6, a resistor R7, a resistor R8, a resistor R5, a capacitor C5, a capacitor C6 and an amplifier A1.

[0026] One end of the resistor R5 is connected to one end of the capacitor C5, the other end of the capacitor C5 is connected to one end of the resistor R6 and the positive input end of the amplifier A1, the other end of the resistor R6 is connected to the output end of the amplifier A1, the negative input end of the amplifier A1 is connected to one end of the capacitor C6, one end of the resistor R8 and one end of the resistor R7, the other end of the resistor R8 is connected to the other end of the capacitor C6 and the ground GND, and the other end of the resistor R7 is connected to the power supply VCC.

[0027] The RF front-end module of the utility model is mainly responsible for receiving wireless signals from the outside, filtering and signal amplification, and finally sending the processed signals to the baseband processing module. The external wireless signal is first received by the circuit, and the filtering circuit composed of the inductor L1 and the capacitor C1 performs preliminary filtering on the received signal to remove high-frequency noise and interference. The filtered signal is amplified by the amplifier circuit composed of resistors R1, R2 and NPN transistor Q1. The base of the transistor Q1 receives the filtered signal and is grounded through the resistor R2 to realize the signal amplification function. The capacitors C2 and C3 play the role of coupling and filtering in the circuit to ensure the stability and purity of the signal. The amplified signal passes through the resistors R3, R4, the inductor L2 and the capacitor C4 The output circuit is transmitted to the baseband processing module. The light-emitting diodes D1 and D2 are used for signal status indication, but they are not directly involved in the signal amplification process. Instead, they serve as auxiliary components. The baseband processing module is responsible for demodulating the received RF signal and converting the RF signal into a digital signal for further processing. It is also responsible for modulating the digital signal to be sent into an RF signal. The signal received from the RF front-end module first enters the positive input terminal of the amplifier A1 through the capacitor C5 and the resistor R5. The negative input terminal of the amplifier A1 is connected to the power supply VCC through the resistor R7 and is grounded through the resistor R8 and the capacitor C6 to form a negative feedback to ensure the stability and linearity of the amplification. The amplifier A1 demodulates the received RF signal into a baseband signal, that is, a digital signal.

[0028] The utility model realizes the complete process from signal reception to processing and then to transmission by integrating the RF front-end and baseband processing modules, which significantly improves the flexibility and overall efficiency of the communication system. Secondly, this integrated design simplifies the system structure and reduces the number of components, thereby effectively reducing the manufacturing cost and maintenance difficulty. Furthermore, the processing links such as filtering, amplification and demodulation in the circuit are carefully optimized to enhance the stability and anti-interference ability of the signal, and maintain high-quality communication effects even in complex electromagnetic environments. Finally, the circuit can adapt to a variety of wireless communication standards and requirements, has broad application prospects, and provides strong support for the development of the wireless communication field.

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A multifunctional wireless communication circuit, characterized in that: include: The RF front-end module is used to receive wireless signals from the outside and send the signals after filtering and signal amplification to the baseband processing module. The baseband processing module is used to demodulate the received RF signal, convert the signal transmitted by the RF front-end module into a digital signal for further processing, and modulate the digital signal to be sent into a RF signal.

2. A multifunctional wireless communication circuit according to claim 1, characterized in that: The RF front-end module includes a light-emitting diode D1, a light-emitting diode D2, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, an inductor L1, an inductor L2 and an NPN transistor Q1.

3. A multifunctional wireless communication circuit according to claim 2, characterized in that: One end of the inductor L1 is connected to one end of the capacitor C1, the other end of the capacitor C1 is connected to one end of the resistor R1, one end of the resistor R2 and the base of the NPN transistor Q1, the other end of the resistor R2 is connected to the emitter of the NPN transistor Q1 and the ground GND, the other end of the resistor R1 is connected to one end of the capacitor C4, the cathode of the light-emitting diode D1 is connected to the anode of the light-emitting diode D2, the cathode of the light-emitting diode D2 is connected to the ground GND, the capacitor C2 and the capacitor C2 are connected in parallel to the light-emitting diode D1 and the light-emitting diode D2, one end of the resistor R3 is connected to one end of the NPN transistor Q1, the other end of the resistor R3 is connected to the capacitor C3 and one end of the resistor R4, the other end of the resistor R4 is connected to one end of the inductor L2, the other end of the inductor L2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is connected to the other end of the resistor R1.

4. The multifunctional wireless communication circuit according to claim 1, characterized in that: The baseband processing module includes a resistor R6, a resistor R7, a resistor R8, a resistor R5, a capacitor C5, a capacitor C6 and an amplifier A1.

5. A multifunctional wireless communication circuit according to claim 4, characterized in that: One end of the resistor R5 is connected to one end of the capacitor C5, the other end of the capacitor C5 is connected to one end of the resistor R6 and the positive input end of the amplifier A1, the other end of the resistor R6 is connected to the output end of the amplifier A1, the negative input end of the amplifier A1 is connected to one end of the capacitor C6, one end of the resistor R8 and one end of the resistor R7, the other end of the resistor R8 is connected to the other end of the capacitor C6 and the ground GND, and the other end of the resistor R7 is connected to the power supply VCC.

Images