Device for enhancing communication quality inside and outside human body
By combining magnetic resonant human body communication with metamaterials and utilizing flexible coils and impedance matching technology, the quality and stability issues of human body communication signals under long distances and individual differences have been solved, thereby improving signal strength and stability. This technology is suitable for implantable medical devices and remote medical monitoring systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-14
AI Technical Summary
Human communication signals have poor quality and stability over long distances and are easily affected by the environment and the state of the human body. Existing technologies cannot effectively solve the problems of individual differences and frequency offset.
The system employs magnetic resonant human body communication combined with metamaterials, and uses human body impedance matching technology to achieve frequency adjustment and enhance signal transmission. It uses flexible coil modules and metamaterial signal enhancement devices, including dielectric substrates, metal resonant rings and compensation capacitors, to achieve seamless integration.
While ensuring extremely low path loss, it significantly enhances signal strength and stability, solves the problem of poor communication quality caused by individual differences and physiological conditions, and is suitable for implantable medical devices and remote medical monitoring systems.
Smart Images
Figure CN224124138U_ABST
Abstract
Description
Technical Field
[0001] This utility model proposes a device for enhancing the quality of communication inside and outside the human body, specifically relating to the field of human body communication. Background Technology
[0002] Human body communication (HBC) is a novel non-radio frequency wireless communication technology that uses the human body as a signal transmission path. It is designed for communication between medical sensor networks. In the IEEE 802.15.6 wireless body area network standard approved in 2012, HBC, along with narrowband and ultra-wideband communication, is specified as one of the three forms for building wireless body area networks.
[0003] Human body communication technology relies on the human body as a transmission medium, and signal strength decreases sharply with increasing distance. This means that at longer distances, signal quality and stability are greatly reduced, limiting its effective range in practical applications.
[0004] Human body communication technology is susceptible to the influence of the surrounding environment and the state of the human body. For example, human movement, changes in posture, and interference from other electromagnetic devices can cause signal fluctuations and instability, affecting the reliability and stability of communication.
[0005] In current applications of in-body and out-of-body communication, the electrical characteristics of the human body significantly block high-frequency radio frequency signals, leading to substantial signal attenuation. Therefore, high-frequency radio frequency methods are not the preferred solution for in-body and out-of-body communication. Existing magnetic harmonic communication implementations focus on wearable devices for surface communication. Compared to surface communication, in-body and out-of-body communication exhibits more pronounced non-periodic time-varying characteristics and greater individual differences, significantly weakening the low path loss advantage of magnetic harmonic communication when applied to in-body and out-of-body communication. Utility Model Content
[0006] Compared to radio frequency communication, magnetic resonant human body communication utilizes the electrical properties of human tissue to achieve extremely low path loss in signal transmission. Furthermore, addressing frequency shifts caused by varying states of human tissue, human impedance matching technology enables real-time dynamic adjustment to a resonant state, overcoming individual differences and ensuring the full realization of this extremely low path loss advantage. Metamaterials can significantly enhance signal strength and even amplify weak signals easily lost in the complex internal environment, thereby enhancing signal transmission. Therefore, this invention employs magnetic resonant human body communication, using human impedance matching technology to address frequency shifts. The introduction of metamaterials, combined with this approach, effectively enhances signal strength and improves signal transmission stability while ensuring extremely low path loss, enabling communication both inside and outside the human body.
[0007] The purpose of this invention is to provide a device for enhancing the quality of communication between the human body and external environments. The relevant details of such a device are as follows:
[0008] A device for enhancing the quality of communication inside and outside the human body, characterized in that the device includes a metamaterial signal enhancement device, and an internal coil module and an external coil module that use the metamaterial signal enhancement device to enhance the reception and transmission of wireless signals.
[0009] The metamaterial signal enhancement device includes: a dielectric substrate, a metal resonant ring, and a compensation capacitor;
[0010] Among them, the in-body coil module is implanted in the human body, and the metamaterial signal enhancement device used to enhance the communication signal of the in-body coil module is installed on the human body skin that is cut open by the implanted in-body coil module.
[0011] The internal and external coil modules are wirelessly connected via magnetic resonance matching using a metamaterial signal enhancement device. The optimal operating frequency range for the internal and external coil modules to achieve magnetic resonance is 2MHz to 20MHz; the optimal operating frequency range for the metamaterial signal enhancement is also 2MHz to 20MHz.
[0012] The dielectric substrate of the internal coil module is an FPC flexible board, and the coil of the internal coil module is made of copper with 9 turns. Its outer ring dimension d o1 =43.2mm, inner ring size d i1 =38.4mm, wherein the excitation port of the body coil module consists of the ground terminal of the body coil module and the input terminal of the body coil module, and the angle between the ground terminal of the body coil module and the input terminal of the body coil module is 90 degrees.
[0013] Among them, the dielectric substrate five of the external coil module adopts an FPC flexible board, and the coil two of the external coil module is made of copper material with 6 turns, and its outer ring dimension d o2 =9.8mm, inner ring size d i2 =6.4mm, wherein the excitation port two of the external coil module consists of the ground terminal two of the external coil module and the input terminal two of the external coil module, and the included angle between the ground terminal two of the external coil module and the input terminal two of the external coil module is 90 degrees.
[0014] Furthermore, the compensation metamaterial module includes a compensation metamaterial module employing a loop-shaped metal resonant ring, wherein the loop-shaped metal resonant ring is interconnected with a compensation capacitor on the back layer through a metallized via on the dielectric substrate; the compensation capacitor is mounted on the back of the dielectric substrate of the compensation metamaterial module in a surface mount form.
[0015] The coil of the loop-shaped metal resonant ring is made of copper material, with 6 turns, a turn spacing of g1=1 mm, and a coil trace width of w1=1 mm.
[0016] The coil of the loop-shaped metal resonant ring is made of copper material, and the coil of the loop-shaped metal resonant ring is arranged in a loop-shaped spiral.
[0017] Among them, the dielectric substrate of the compensation metamaterial module using the loop-shaped metal resonant ring is made of polytetrafluoroethylene. The surface of the dielectric substrate is plated with a copper film. There are two vias on the dielectric substrate, and the vias are metallized.
[0018] Furthermore, the compensation metamaterial module includes a compensation metamaterial module employing a cross-shaped metal resonant ring, wherein the cross-shaped metal resonant ring is interconnected with the compensation capacitor two on the back layer through a metallized via on the dielectric substrate two; the compensation capacitor two is mounted on the back of the dielectric substrate two of the compensation metamaterial module in a patch form.
[0019] The coil of the cross-shaped metal resonator is made of copper. The coil of the cross-shaped metal resonator has a cross-shaped dividing structure, including an outer closed square frame, and horizontal and vertical metal traces inside, which intersect perpendicularly to form a cross. The overall structure has a square outer shape, and the width of the cross dividing structure is w2=1mm. The interior has horizontal and vertical metal traces (both with a length of a2=57mm), which intersect perpendicularly to form a cross. The overall structure has a square outer shape with a side length of b2=50mm.
[0020] Among them, the dielectric substrate 2 in the compensation metamaterial module using a cross-shaped metal resonant ring is made of polytetrafluoroethylene, and the surface of the dielectric substrate 2 is plated with a copper film. There are two vias 2 on the dielectric substrate 2, and the vias 2 have metallization characteristics.
[0021] Furthermore, the compensation metamaterial module includes a compensation metamaterial module that uses a circular metal resonant ring as a resonant coil, wherein the circular metal resonant ring is interconnected with the compensation capacitor three on the back layer through a metallized via three on the dielectric substrate three; the compensation capacitor three is mounted on the back of the dielectric substrate three of the compensation metamaterial module in a patch form.
[0022] The circular metal resonant ring consists of two concentric rings. The coil is made of copper. The spacing between adjacent rings is g3 = 1 mm, the width of a single ring is w3 = 1 mm, the outer diameter of the outermost ring is a3 = 57 mm, and the number of coil turns is 2.
[0023] Among them, the dielectric substrate three in the compensation metamaterial module using a circular metal resonant ring is made of polytetrafluoroethylene, the surface of the dielectric substrate three is plated with a copper film, and there are two vias three on the dielectric substrate three, which have the characteristics of metallization.
[0024] The aforementioned device for enhancing the quality of communication between the human body and the outside includes a frequency adjustment device, wherein the MCU central control unit in the frequency adjustment device adopts an STM32F103RCT6 microcontroller.
[0025] The frequency adjustment device also includes an analog switch circuit, a signal source circuit, an amplitude and phase detection circuit, and a directional coupler; the analog switch circuit uses a TS5A3116 device, the signal source circuit uses an AD9850 chip, and the amplitude and phase detection circuit uses an AD8302 chip.
[0026] This utility model has the following advantages:
[0027] 1. Existing communication coils with rigid substrates cannot achieve effective coupling with the human body at curved interfaces. Therefore, the lightweight, flexible, and biocompatible coil structure of this invention not only effectively enhances the overall performance of in vivo and in vitro magnetic harmonic communication but also facilitates its seamless integration into practical applications. Furthermore, existing in vivo and in vitro communication suffers from low communication quality; this invention introduces metamaterials to further enhance the magnetic field strength of the receiving coil, thereby improving the quality of in vivo and in vitro communication.
[0028] 2. This invention integrates the ability to automatically adjust the communication frequency according to individual differences and different physiological states, thereby solving the problems of frequency offset and signal instability in in vivo and in vitro magnetic harmonic communication. This invention can be widely used in implantable medical devices, remote medical monitoring systems, and smart health devices, effectively solving the problem of low communication quality caused by individual differences and different physiological states in in vivo and in vitro communication. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the system of this utility model.
[0030] Figure 2 This is a front view of the compensation metamaterial module using a loop-shaped metal resonant ring of this utility model.
[0031] Figure 3 This is a schematic diagram of the back of the compensation metamaterial module using a loop-shaped metal resonant ring of this utility model.
[0032] Figure 4 This is a side view of the compensation metamaterial module using a loop-shaped metal resonant ring according to this utility model.
[0033] Figure 5This is a front view of the compensation metamaterial module of this utility model, which uses a cross-shaped metal resonant ring.
[0034] Figure 6 This is a schematic diagram of the back of the compensation metamaterial module using a cross-shaped metal resonant ring according to this utility model.
[0035] Figure 7 This is a side view of the compensation metamaterial module of this utility model, which uses a cross-shaped metal resonant ring.
[0036] Figure 8 This is a front view of the compensation metamaterial module using a circular metal resonant ring according to this utility model.
[0037] Figure 9 This is a schematic diagram of the back of the compensation metamaterial module using a circular metal resonant ring according to this utility model.
[0038] Figure 10 This is a side view of the compensation metamaterial module using a circular metal resonant ring according to this utility model.
[0039] Figure 11 This is a front view of the internal coil module of this utility model.
[0040] Figure 12 This is a schematic diagram of the back of the internal coil module of this utility model.
[0041] Figure 13 This is a front view of the external coil module of this utility model.
[0042] Figure 14 This is a schematic diagram of the back of the external coil module of this utility model.
[0043] Figure 15 This is the circuit diagram of the MCU central control unit of this utility model.
[0044] Figure 16 This is the analog switch circuit diagram of this utility model.
[0045] Figure 17 This is a circuit diagram of the combined radiation and phase detection circuit and directional coupler of this utility model.
[0046] Figure 18 This is the signal source circuit of this utility model.
[0047] in:
[0048] 1.1 - Compensation capacitor one; 1.2 - Via one; 1.3 - Reciprocating metal resonant ring; 1.4 - Dielectric substrate one;
[0049] 2.1 - Compensation capacitor two; 2.2 - Via two; 2.3 - Cross-shaped metal resonant ring; 2.4 - Dielectric substrate two;
[0050] 3.1 - Compensation capacitor three; 3.2 - Via three; 3.3 - Circular metal resonant ring; 3.4 - Dielectric substrate three;
[0051] 4-Coil 1 of the internal coil module; 5-Ground 1 of the internal coil module; 6-Input 1 of the internal coil module; 7-Excitation port 1 of the internal coil module; 8-Dielectric substrate 4 of the internal coil module; 9-Coil 2 of the external coil module; 10-Ground 2 of the external coil module; 11-Input 2 of the external coil module; 12-Excitation port 2 of the external coil module; 13-Dielectric substrate 5 of the external coil module. Detailed Implementation
[0052] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0053] like Figure 1 As shown, the in vitro and in vivo flexible coil module consists of an external coil module and an internal coil module. The external coil module is placed outside the body to transmit signals, while the internal coil module is placed inside the implanted device to receive signals. The compensating metamaterial module is used to capture and amplify the weak signals emitted by the external coil module, thereby enabling the internal coil module to receive stronger signals.
[0054] The compensation metamaterial module in this invention consists of three main components: a dielectric substrate, a metal resonant ring, and a compensation capacitor. The final structural unit parameters, determined after extensive simulation and optimization, are as follows:
[0055] like Figure 2 , 3 As shown in Figure 4, when the metal resonant ring used in the compensation metamaterial module is of the loop shape, it has the following characteristics:
[0056] The loop-shaped metal resonant ring 1.3 is formed by etching a copper-clad layer on the surface of the dielectric substrate 1.4. The loop-shaped metal resonant ring 1.1 is interconnected with the compensation capacitor 1.1 on the back layer through two metallized vias 1.2 on the dielectric substrate 1.4. The compensation capacitor 1.1 is mounted on the back of the dielectric substrate 1.4 of the compensation metamaterial module in a surface mount form. The loop-shaped metal resonant ring 1.3 is made of a copper film with a thickness of 0.035 mm, the coil trace width w1 = 1 mm, the turn spacing g1 = 1 mm, the maximum side length a1 = 57 mm, and the number of turns is 6. The dielectric substrate 1.4 of the metamaterial module is made of polytetrafluoroethylene (PTFE). The side length of the dielectric substrate 1.4 is l1 = 60 mm, and the thickness is h1 = 0.76 mm.
[0057] like Figure 5 , 6 As shown in Figure 7, when the metal resonant ring used in the compensation metamaterial module is cross-shaped, it has the following characteristics:
[0058] The cross-shaped metal resonant ring 2.3 is formed by etching a copper-clad layer on the surface of dielectric substrate 2.4. The cross-shaped metal resonant ring 2.3 is interconnected with the compensation capacitor 2.1 on the back layer through two metallized vias 2.2 on dielectric substrate 2.4. The compensation capacitor 2.1 is mounted on the back of dielectric substrate 2.4 of the compensation metamaterial module in a surface mount configuration. The coil of the cross-shaped metal resonant ring 2.3 has a cross-shaped partition structure, including an outer closed square frame, and internal horizontal and vertical metal traces that intersect perpendicularly to form a cross partition. The overall structure has a square outer shape, with the width of the cross partition structure being w2 = 1 mm. Internal horizontal and vertical metal traces (both with a length of a2 = 57 mm) intersect perpendicularly to form a cross partition. The overall structure has a square outer shape with a side length of b2 = 50 mm. The dielectric substrate 2.4 of the metamaterial module using the cross-shaped metal resonant ring is made of polytetrafluoroethylene (PTFE), with a side length of l2 = 60 mm and a thickness of h2 = 0.76 mm.
[0059] like Figure 8 , 9 As shown in Figure 10, when the metal resonant ring used in the compensation metamaterial module is circular, it has the following characteristics:
[0060] The circular metal resonant ring 3.3 is formed by etching a copper-clad layer on the surface of the dielectric substrate 3.4. The circular metal resonant ring 3.3 is interconnected with the compensation capacitor 3.1 on the back layer through two metallized vias 3.2 on the dielectric substrate 3.4. The compensation capacitor 3.1 is mounted on the back of the dielectric substrate 3.4 of the compensation metamaterial module in a surface mount configuration. The coil of the circular metal resonant ring consists of two concentric rings made of copper film. The spacing between adjacent rings is g3 = 1 mm, the width of a single ring is w3 = 1 mm, the outer diameter of the outermost ring is a3 = 57 mm, and the number of coil turns is 2. The dielectric substrate 3.4 of the metamaterial module using the circular metal resonant ring is made of polytetrafluoroethylene (PTFE), with a side length of l3 = 60 mm and a thickness of h3 = 0.76 mm.
[0061] This invention selects an external coil module for external signal transmission and an internal coil module for signal reception by the implanted device. The coils employ resonant matching to address the frequency shift issues caused by different human body states. The process of constructing a custom resonant frequency using the Smith chart method is called resonant matching. The coil substrates are all made of highly flexible FPC boards, which have undergone continuous optimization; the final parameters are shown in Table 1.
[0062] Schematic diagrams of the internal coil module and the external coil module are shown below. Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown. The dielectric substrate 48 of the internal coil module is an FPC flexible board, and the coil 4 of the internal coil module is made of copper with 9 turns. Its outer ring dimension d... o1 =43.2mm, inner ring size d i1 =38.4mm, wherein the excitation end of the internal coil module is composed of the ground end of the internal coil module, 5 and the input end of the internal coil module, wherein the angle between the ground end and the input end is 90 degrees; the side length X1=10mm, the coil trace width w4=1 mm, and the turn spacing g4=1 mm.
[0063] Among them, the dielectric substrate 13 of the external coil module adopts an FPC flexible board, and the coil 9 of the external coil module is made of copper material with 6 turns, and its outer ring dimension d o2 =9.8mm, inner ring size d i2 =6.4mm, wherein the excitation end opening 2 12 of the external coil module is composed of the ground end 2 10 of the external coil module and the input end 2 11 of the external coil module. The angle between the ground end 10 and the input end 11 is 90 degrees, the side length X2=50mm, the coil trace width w5=1 mm, and the turn spacing g5=1 mm.
[0064] like Figure 15 , 16As shown in Figures 17 and 18, in one embodiment of this utility model, taking the compensation metamaterial module with a loop-shaped metal resonant ring as an example, the MCU central control unit adopts an STM32F103RCT6 microcontroller. The MCU controls the analog switch TS5A3116 to enter the frequency adjustment link, and simultaneously controls the signal source circuit designed with the AD9850 chip to generate a frequency scanning signal according to the set steps and range. The signal is transmitted through the external coil module, enhanced by metamaterials, and then received by the internal coil module. The directional coupler BWSMA-KE-Z001 in the amplitude and phase detection circuit separates the incident and reflected signals at its two ends and transmits them to the RF detector using the AD8302ARUZ chip in the amplitude and phase detection circuit. The MCU's ADC will collect the amplitude and phase information output by the amplitude and phase detection circuit designed with the AD8302 chip and convert it into port impedance parameters. Then, the MCU will calculate the matching parameters that should be at the target magnetic harmonic frequency based on the port impedance parameters, and then adjust the voltage value of the external coil module port to change the adjustable capacitor to the appropriate capacitance value, so that the external coil module is matched to the preset target magnetic harmonic frequency. The external and internal coil modules employ a flexible and biocompatible structure, which not only effectively enhances the overall performance of in-body and external magnetic harmonic communication but also facilitates its seamless integration into practical applications. The added compensating metamaterial, with its evanescent wave amplification properties, significantly reduces losses, making the entire communication process more stable and reliable. This places the receiving coil in a stronger magnetic field environment, receiving more signals and enhancing the coupling between the transmitting and receiving coils, further improving the quality and reliability of in-body and external communication. Table 2 compares the transmission gain results with chicken breast as the transmission medium, without metamaterial, and with metamaterial. The distance between the transmitting and receiving coils was set to 90mm~170mm, with a step size of 10mm. Transmission gain tests were conducted with and without metamaterial. Table 2 shows the test results. According to Tables 1 and 2, the experiment demonstrates that the optimal working distance range for the internal and external coils is 90mm~170mm.
[0065]
[0066] Table 1
[0067]
[0068] Table 2
[0069] This utility model has the following advantages:
[0070] This invention can automatically adjust the communication frequency according to individual differences and different physiological states, thereby solving the problems of frequency offset and signal instability in in vivo and in vitro magnetic harmonic communication. This invention can be widely applied in implantable medical devices, remote medical monitoring systems, and smart health devices, effectively solving the problem of low communication quality caused by individual differences and different physiological states in in vivo and in vitro communication.
[0071] The above are preferred embodiments of this utility model. Any changes made to the technical solution of this utility model that do not exceed the scope of the technical solution of this utility model shall be protected within the scope of this utility model.
Claims
1. A device for enhancing the quality of communication inside and outside the human body, characterized in that, The aforementioned device for enhancing the quality of communication inside and outside the human body includes a metamaterial signal enhancement device, as well as an in-body coil module and an external coil module that use the metamaterial signal enhancement device to enhance the reception and transmission of wireless signals. The metamaterial signal enhancement device includes: a dielectric substrate, a metal resonant ring, and a compensation capacitor; Among them, the in-body coil module is implanted in the human body, and the metamaterial signal enhancement device used to enhance the communication signal of the in-body coil module is installed on the human body skin that is cut by the implanted in-body coil. The internal coil module and the external coil module are wirelessly connected via magnetic resonance matching using a metamaterial signal enhancement device.
2. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, When the internal coil module and the external coil module achieve magnetic resonance, the optimal operating frequency range is 2MHz~20MHz; the optimal operating frequency range for metamaterial signal enhancement is 2MHz~20MHz.
3. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, The dielectric substrate of the in vivo coil module is a biocompatible FPC flexible board. The coil of the in vivo coil module is made of copper material with 9 turns. The excitation port of the in vivo coil module consists of the ground terminal of the in vivo coil module and the input terminal of the in vivo coil module. The angle between the ground terminal of the in vivo coil module and the input terminal of the in vivo coil module is 90 degrees.
4. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, The dielectric substrate five of the external coil module is a biocompatible FPC flexible board. The coil two of the external coil module is made of copper material with 6 turns. The excitation port two of the external coil module consists of the ground terminal two and the input terminal two of the external coil module. The included angle between the ground terminal two and the input terminal two of the external coil module is 90 degrees.
5. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, The compensation metamaterial module includes a compensation metamaterial module that uses a loop-shaped metal resonant ring as the metal resonant ring, wherein the loop-shaped metal resonant ring is interconnected with a compensation capacitor on the back layer through a via on a dielectric substrate; the compensation capacitor is mounted on the back of the dielectric substrate of the compensation metamaterial module in a surface mount form. The coil of the loop-shaped metal resonant ring is made of copper material and is arranged in a loop-shaped spiral. The dielectric substrate of the metamaterial module that uses the loop-shaped metal resonant ring as a compensation metamaterial is made of polytetrafluoroethylene and has a copper film plated on its surface. There are two vias on the dielectric substrate.
6. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, The compensation metamaterial module includes a compensation metamaterial module that uses a cross-shaped metal resonant ring as the metal resonant ring, wherein the cross-shaped metal resonant ring is interconnected with the compensation capacitor 2 on the back layer through a via 2 on the dielectric substrate 2; the compensation capacitor 2 is mounted on the back of the dielectric substrate 2 of the compensation metamaterial module in a patch form. The coil of the cross-shaped metal resonant ring is made of copper. The coil of the metal cross-shaped resonant ring has a cross-shaped separation structure, including an outer closed square frame, and has horizontal and vertical metal traces inside, which intersect perpendicularly to form a cross separation. The overall structure has a square outline. The dielectric substrate 2 in the compensation metamaterial module, which uses a cross-shaped metal resonant ring as the metal resonant ring, is made of polytetrafluoroethylene. The surface of the dielectric substrate 2 is plated with a copper film, and there are two vias 2 on the dielectric substrate.
7. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, The compensation metamaterial module includes a compensation metamaterial module that uses a circular metal resonant ring as a resonant coil, wherein the circular metal resonant ring is interconnected with the compensation capacitor three on the back layer through a via three on the dielectric substrate three; the compensation capacitor three is mounted on the back of the dielectric substrate three of the compensation metamaterial module in a patch form. The coil of the circular metal resonant ring is made of copper and consists of two concentric rings. The dielectric substrate three in the compensation metamaterial module, which uses a circular metal resonant ring as the metal resonant ring, is made of polytetrafluoroethylene. The surface of the dielectric substrate three is plated with a copper film, and there are two vias three on the dielectric substrate.
8. The device for enhancing the quality of communication inside and outside the human body according to claim 1, characterized in that, It includes a frequency adjustment device, wherein the MCU central control unit in the frequency adjustment device adopts an STM32F103RCT6 microcontroller.
9. A device for enhancing the quality of communication inside and outside the human body according to claim 8, characterized in that, The frequency adjustment device also includes an analog switch circuit, a signal source circuit, an amplitude and phase detection circuit, and a directional coupler; the analog switch circuit uses a TS5A3116 device, the signal source circuit uses an AD9850 chip, and the amplitude and phase detection circuit uses an AD8302 chip.