Communication / wireless power supply device, electronic device, and communication device

Abstract

Provided is a technology that is capable of highly efficiently performing communication and wireless power supply simultaneously.　The present technology provides, for example, a communication / wireless power supply device comprising: a circuit for communication; a rectifier circuit for wireless power supply; and an antenna element that is used for both communication and wireless power supply, wherein the circuit for communication is coupled to the antenna element in a frequency band which is different from a frequency band used for wireless power supply. The rectifier circuit may be configured to be directly connected to the antenna element without an element interposed therebetween.

Description

Communication and Wireless Power Supply Device, Electronic Device, and Communication Device

[0001] The technology according to the present disclosure (hereinafter also referred to as "the present technology") relates to a communication and wireless power supply device, an electronic device, and a communication device.

[0002] In recent years, electronic devices such as home audio, personal audio, smartphones, and game controllers have been increasingly equipped with communication functions and are being wirelessly enabled. On the other hand, regarding the wireless power supply function, legal regulations are progressing. Internationally, the use of the ISM band is permitted, and in Japan, use in the 920 MHz band, 2.4 GHz band, 5.7 GHz band, and even at higher frequencies is expected. Under such circumstances, in small electronic devices, in order to effectively utilize the limited internal space, it is required to share multiple functions with a single antenna.

[0003] For example, Patent Document 1 discloses a technology related to an electronic device that switches and controls wireless communication and wireless power reception with a single antenna.

[0004] For example, Patent Document 2 discloses a technology related to a transponder of a mobile body identification device that converts the power of an interrogation radio wave into a DC power supply and modulates and transmits a response radio wave based on identification information.

[0005] Japanese Unexamined Patent Application Publication No. 2021-193765, Japanese Unexamined Patent Application Publication No. 04-147082

[0006] However, for example, the technology disclosed in Patent Document 1 requires accurate management of the timing of communication and wireless power reception so as not to interfere with each other's operations, which may complicate the switching control.

[0007] Further, for example, the technology disclosed in Patent Document 2 may make it difficult to convert to a DC power supply and stably output identification information when the received power amount is not sufficient, and the modulation function and overall operation of the transponder may become unstable.

[0008] Therefore, the main object of the present technology is to provide a technology that can perform communication and wireless power supply simultaneously with high efficiency.

[0009] This technology provides a communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna element used for both communication and wireless power supply, wherein the communication circuit is coupled to the antenna element in a frequency band different from the frequency band used for wireless power supply. The rectifier circuit and the antenna element may be directly connected without any intermediate elements. The coupling between the communication circuit and the antenna element may be performed by near-field coupling. The near-field coupling may be capacitive coupling. The near-field coupling may be inductive coupling. The rectifier circuit and the antenna element may be directly connected or near-field coupled. The communication circuit and the antenna element may be configured to have impedance matching in the communication frequency band and impedance mismatch in the wireless power supply frequency band. The rectifier circuit and the antenna element may be configured to have impedance matching in the wireless power supply frequency band and impedance mismatch in the communication frequency band. A first frequency filter, which functions in the communication frequency band, may be placed between the communication circuit and the antenna element. The first frequency filter may be a bandpass filter, a lowpass filter, or a highpass filter. A second frequency filter, which functions in the wireless power transmission frequency band, may be placed between the communication circuit and the antenna element. The second frequency filter may be a bandstop filter. The strength of the power transmitted for communication may be adjusted to be approximately the same as the strength of the power received for wireless power transmission. The strength of the power transmitted for communication may be adjusted to be within 10 dB of the strength of the power received for wireless power transmission. The communication circuit, the rectifier circuit, and the antenna element may be integrated as a module. Furthermore, this technology provides electronic equipment equipped with the communication and wireless power transmission device.Furthermore, this technology provides a communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna placement area where an antenna element shared for both communication and wireless power supply can be placed, wherein the communication circuit is coupled with the antenna element in a frequency band different from the frequency band used for wireless power supply. The communication circuit, the rectifier circuit, and the antenna placement area may be integrated as a module. Furthermore, this technology provides a communication device comprising a communication circuit, wherein the communication circuit is coupled with an antenna element in a frequency band different from the frequency band used for wireless power supply, and the antenna element is shared for both communication and wireless power supply.

[0010] This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a graph showing simulation results using the communication / wireless power supply device of this technology. This is a circuit diagram showing an example configuration of a bridge rectifier circuit. This is a graph showing an example of simulation results using the bridge rectifier circuit shown in Figure 3. This is a schematic perspective view showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a schematic perspective view showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a graph showing an example of the operating characteristics of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a graph showing an example of the operating characteristics of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a circuit diagram showing an example configuration of a communication / wireless power supply device according to one embodiment of this technology. This is a table showing an example of simulation results using the circuit shown in Figure 12. This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of this technology. This is a block diagram showing an example configuration of a communication device 1A according to one embodiment of this technology. This is a block diagram showing an example configuration of an electronic device 100 according to one embodiment of this technology. This is a diagram showing an example of the schematic configuration of an IoT system 9000 to which this technology may be applied. This is a flowchart showing an example of a method for manufacturing a communication / wireless power supply device according to one embodiment of this technology.

[0011] Hereinafter, preferred embodiments for implementing this technology will be described with reference to the drawings. The embodiments described below are merely examples of typical embodiments of this technology and do not limit the scope of this technology. Furthermore, this technology can be implemented by combining any of the following embodiments and their modifications.

[0012] In the following description of embodiments, configurations may be described using terms with "approximately" attached, such as "approximately parallel" and "approximately orthogonal." For example, "approximately parallel" means not only that they are perfectly parallel, but also that they are substantially parallel, that is, that is, they are deviated from a perfectly parallel state by, for example, a few percent. The same applies to other terms with "approximately." Also, each figure is a schematic diagram and is not necessarily a strictly accurate representation. The scale of the drawings is exaggerated to make the technical features easier to understand. Therefore, it should be noted that the scale of the drawings and the scale of the actual device are not necessarily the same.

[0013] Unless otherwise specified, in drawings, "up" means the upper direction or upper side in the drawing, "down" means the lower direction or lower side in the drawing, "left" means the left direction or left side in the drawing, and "right" means the right direction or right side in the drawing. In addition, in drawings, the same or equivalent elements or components are denoted by the same reference numeral, and redundant explanations are omitted.

[0014] The explanation will proceed in the following order: 1. First Embodiment of the Technology (Example 1 of a Communication / Wireless Power Transfer Device) (1) Overview of the Technology (2) Overall Configuration (3) Communication Circuit (4) Rectifier Circuit (5) Antenna Element (6) Advantages of Modular Configuration (7) Operation and Efficiency of Communication and Wireless Power Transfer (8) Connection / Coupling Configuration (9) Near-Field Coupling (10) Impedance Matching (11) Communication Power and Wireless Power Transfer Power (12) Frequency Band (13) Effects (14) Example 1 (15) Example 2 (16) Example 3 (17) Example 4 (18) Example 5 2. Second Embodiment of the Technology (Example 2 of a Communication / Wireless Power Transfer Device) 3. Third Embodiment of the Technology (Example of a Communication Device) 4. Fourth Embodiment of the Technology (Example of an Antenna Element) 5. Fifth Embodiment of the Technology (Example of an Electronic Device) (1) Application Example 1 (2) Application Example 2 6. Sixth embodiment of this technology (Example of a method for manufacturing a communication / wireless power supply device)

[0015] [1. First Embodiment of the Technology (Example 1 of Communication and Wireless Power Supply Device)] [(1) Overview of the Technology] The Technology relates to a technology that simultaneously realizes wireless communication and wireless power supply functions with high efficiency. The Technology provides a communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna element shared for both communication and wireless power supply, wherein the communication circuit is coupled to the antenna element in a frequency band different from the frequency band used for wireless power supply.

[0016] This technology enables highly efficient simultaneous operation of both communication and wireless power transfer (WPT) functions within a limited internal space. By sharing a single antenna for both communication and WPT, and incorporating design features to ensure interference-free operation of both functions, the system configuration is simplified compared to conventional technologies, resulting in more efficient power utilization. Furthermore, it can be easily applied to small electronic devices such as home audio systems, smartphones, and game controllers, offering space-saving benefits and increased flexibility in product placement.

[0017] [(2) Overall Configuration] An example of the configuration of a communication and wireless power supply device related to this technology will be described with reference to Figure 1. Figure 1 is a block diagram showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of this technology.

[0018] As shown in Figure 1, the communication and wireless power supply device 1 includes a communication circuit 11, a rectifier circuit 12 for wireless power supply, and an antenna element 13, among other things.

[0019] The communication circuit 11 processes communication signals and enables data communication. The rectifier circuit 12 converts the wireless power transmission signal into DC power and is responsible for supplying power to the entire device. The antenna element 13 transmits and receives both communication signals and wireless power transmission signals.

[0020] [(3) Communication Circuit] The communication circuit 11 includes a transmitting and receiving module, an impedance matching circuit, and a control circuit.

[0021] The transceiver module is configured to support communication protocols such as Wi-Fi and Bluetooth®. This module enables communication with external devices and networks.

[0022] The impedance matching circuit matches the impedance between the transmitting / receiving module and the antenna element 13, maximizing the transmission and reception efficiency of communication signals. This minimizes energy loss. In this technology, matching is performed in a frequency band different from the frequency band used for wireless power transfer, thereby improving the efficiency of communication signals.

[0023] The control circuit manages the initiation and termination of communication functions, as well as the timing of signal transmission and reception. It is responsible for data processing and switching between communication operations, playing a crucial role in optimizing the overall communication function.

[0024] [(4) Rectifier Circuit] The rectifier circuit 12 is a circuit that converts the wireless power transmission signal into DC power and realizes highly efficient wireless power transmission in a configuration that can coexist with the communication function.

[0025] The rectifier circuit 12 converts the AC signal to DC using a diode and smooths the rectified signal with a capacitor. It also uses an inductor to suppress sudden fluctuations in current and stabilize the energy.

[0026] The rectifier circuit 12 efficiently converts the wireless power supply signal into DC power, ensuring a stable power supply to the device. This design achieves high efficiency in the wireless power supply function.

[0027] [(5) Antenna Element] The antenna element 13 is shared to process communication signals and wireless power transmission signals simultaneously with high efficiency. This design eliminates the need for separate antennas for communication and wireless power transmission, enabling miniaturization and cost reduction of the entire device.

[0028] The conductive pattern of the antenna element 13 is designed with a shape and size suitable for the frequency bands required for communication and wireless power transfer. It is configured to resonate in a specific frequency band, thereby improving the efficiency of signal transmission and reception. For example, in smartphones, it is designed for the frequency bands of Wi-Fi and Bluetooth (2.4 GHz and 5 GHz bands), and in wireless power transfer, it is designed for the 920 MHz, 2.4 GHz, and 5.7 GHz bands, with designs tailored to each application.

[0029] [(6) Advantages of Modular Configuration] In this technology, it is preferable that the communication circuit 11, the rectifier circuit 12, and the antenna element 13 are integrated as a module. This configuration allows the communication and wireless power supply circuits to be compactly integrated, resulting in a smaller overall device. Furthermore, wiring is simplified, and the manufacturing and assembly processes are streamlined, improving mass production efficiency. Moreover, modularization enables application to various small devices, increasing installation flexibility.

[0030] [(7) Operation and Efficiency of Communication and Wireless Power Transfer] When a communication signal is received by the antenna element 13, the communication circuit 11 is configured to efficiently transmit and receive the signal. With this configuration, the communication signal is processed appropriately without affecting the rectifier circuit 12 via the antenna element 13, and stable communication performance is maintained. In particular, the communication circuit 11 is coupled to the antenna element 13 in a frequency band different from the frequency band used for wireless power transfer. This design avoids interference between the communication function and the wireless power transfer function, and enables both to operate simultaneously with high efficiency.

[0031] Meanwhile, the wireless power supply signal is efficiently received through the antenna element 13 and converted into a DC power supply by the rectifier circuit 12. At this time, power transmission from the antenna element 13 to the rectifier circuit 12 is optimized by utilizing the difference in frequency bands to prevent interference between the communication signal and the wireless power supply signal. This design enables the communication function and the wireless power supply function to operate efficiently without compromising their respective performance.

[0032] Furthermore, in this configuration, the communication signal transmitted from the communication circuit 11 is radiated to the outside through the antenna element 13, and a portion of it also flows into the rectifier circuit 12. This portion of the communication signal is rectified in the rectifier circuit 12, similar to the wireless power transmission signal, and reused for energy supply to the entire device. With this design, the energy used for the communication signal is recovered and reused without waste, substantially improving the energy efficiency of the entire device.

[0033] Furthermore, to maximize the operational efficiency of communication signals and wireless power transmission signals, this technology appropriately matches impedances in each frequency band. As a result, reflection losses are suppressed, the transmission efficiency of both communication signals and wireless power transmission signals is improved, and the overall operational stability and energy efficiency of the device are enhanced.

[0034] Figure 2 is a graph showing the simulation results using the communication and wireless power supply device of this technology. The horizontal axis represents input power (dBm), and the vertical axis represents efficiency, with each curve representing efficiency under different operating conditions.

[0035] This graph visually shows the efficiency of the communication signal transmitted from the antenna and the reusable power in the rectifier circuit when the communication circuit 11 operates as Bluetooth®.

[0036] Line L1 shows the efficiency when the power is radiated to the outside through the antenna element 13. As the input power increases, the efficiency gradually decreases.

[0037] Line L2 shows the efficiency of power reuse in the rectifier circuit, where a portion of the communication signal flows in for wireless power transfer. As the input power increases, the reuse efficiency in the rectifier circuit also improves.

[0038] Line L3 shows the actual efficiency. In this way, some communication signals are rectified and repurposed for wireless power transfer, thus enabling efficient use of energy. Communication efficiency is optimized, and the power reuse efficiency by the rectification circuit is also high, resulting in high energy efficiency for the entire system.

[0039] [(8) Connection and coupling configuration] In this technology, it is preferable that the rectifier circuit 12 and the antenna element 13 are directly connected, with no intermediate components. This configuration improves the power transmission efficiency to the rectifier circuit 12 and enables high-efficiency wireless power supply. By eliminating intermediate components, impedance matching from the antenna element 13 to the rectifier circuit 12 is maintained, minimizing power loss.

[0040] Furthermore, the absence of additional elements between the rectifier circuit 12 and the antenna element 13 simplifies the circuit configuration, leading to reduced manufacturing costs and a smaller overall device size.

[0041] Furthermore, in this technology, it is preferable that the communication circuit 11 and the antenna element 13 are coupled by near-field coupling. This configuration improves the coupling efficiency between the communication circuit 11 and the antenna element 13, and stabilizes the transmission of communication signals. By using near-field coupling, it is possible to maintain high coupling efficiency even under spatial constraints, which is particularly useful in devices where miniaturization is required.

[0042] Furthermore, since near-field coupling utilizes local interactions of electromagnetic fields, it suppresses interference between the communication circuit 11 and the rectifier circuit 12, providing an environment in which both functions operate efficiently. This configuration enables simultaneous operation of communication and wireless power supply, improving the overall operating efficiency of the device.

[0043] [(9) Near-field coupling] Near-field coupling is a method of transmitting signals or power by utilizing the local effect of electromagnetic fields generated between coupling members, and includes capacitive coupling (electric field coupling) and inductive coupling (magnetic field coupling). Coupling efficiency and transmission stability can be optimized by combining components such as capacitors, inductors, and transformers as needed.

[0044] Capacitive coupling, also known as electric field coupling, is a method in which an electric field is generated between two adjacent conductors, and signals and power are transmitted through the action of this electric field. In capacitive coupling, the capacitance (capacitance) generated between conductors is utilized to transmit communication signals and power supply signals. To realize this coupling method, it is necessary to ensure an appropriate capacitance between conductors. By installing capacitors, it is possible to enhance frequency selectivity and enable stable transmission and reception of communication signals and wireless power supply signals.

[0045] Inductive coupling is a method in which two conductors are coupled through a magnetic field to transmit signals and power. Inductive coupling is also called magnetic field coupling, and signal transmission is performed using inductance (self-inductance or mutual inductance) in particular. To realize inductive coupling, elements such as inductors (coils) and transformers may be used, or wiring (transmission lines) on a substrate may be used. As a result, a magnetic field is generated at the coupling part, and signals or power are transmitted. Inductive coupling enables highly efficient transmission in a specific frequency band and can be efficiently separated when the frequencies of communication and wireless power supply are different.

[0046] To improve the efficiency and stability of near-field coupling, it is conceivable to use a combination of capacitors, inductors, transformers, and other high-frequency (RF) components. For example, by using a capacitor, the coupling capacitance in capacitive coupling can be precisely adjusted to achieve stable power transmission. Also, in inductive coupling using elements such as inductors, by optimizing the coupling strength, highly efficient coupling at a specific frequency can be realized. Furthermore, in a coupling structure using a transformer, impedance matching and adjustment of frequency characteristics are possible, and it is effective as a means for operating each function of communication and wireless power supply with high efficiency.

[0047] [(10) Impedance Matching] In this technology, the communication circuit 11 and the antenna element 13 are configured to have impedance matching in the communication frequency band and impedance mismatch in the wireless power feeding frequency band. With this design, reflection loss is suppressed in the communication frequency band, and the transmission efficiency of communication signals is maximized. On the other hand, in the wireless power feeding frequency band, since the impedances of the communication circuit 11 and the antenna element 13 are mismatched, it is possible to prevent the wireless power feeding signal from interfering with the communication circuit 11, enabling efficient wireless power feeding. As a result, the efficiency of both communication and wireless power feeding is improved, and the operation of the entire device is stabilized.

[0048] Also, the rectifier circuit 12 and the antenna element 13 are configured to have impedance matching in the wireless power feeding frequency band and impedance mismatch in the communication frequency band. With this configuration, the wireless power feeding signal is efficiently transmitted to the rectifier circuit 12 through the antenna element 13, improving the power conversion efficiency of wireless power feeding. On the other hand, it is possible to prevent the communication signal from interfering with the rectifier circuit 12 and maintain the communication performance. By performing appropriate impedance adjustment in each frequency band, mutual interference between communication and wireless power feeding is suppressed, and a highly efficient and stable operation is achieved.

[0049] [(11) Communication Power and Wireless Power Feeding Power] Here, the correlation between the transmission power for communication and the received power for wireless power feeding will be described while referring to FIGS. 3 and 4. FIG. 3 is a circuit diagram showing a configuration example of a bridge rectifier circuit. This bridge rectifier circuit is used to convert an AC signal into a DC signal. In this circuit, four diodes are used. These diodes are arranged in a bridge configuration and play a role in converting both the positive and negative cycles of the AC signal into a DC signal. In the positive cycle, two diodes operate in the forward direction and allow the signal to pass through. In the negative cycle, the remaining two diodes operate in the forward direction and allow the signal to pass through. As a result, the entire cycle of the AC signal is output as a DC signal of the same polarity.

[0050] FIG. 4 is a graph showing an example of the simulation results using the bridge rectifier circuit shown in FIG. 3. The horizontal axis of this graph indicates the input power (dBm), and the vertical axis indicates the rectification efficiency.

[0051] In a bridge rectifier circuit like the one shown in Figure 3, efficiency decreases until power exceeding the diode's rise voltage is supplied. Therefore, as shown in Figure 4, when the input power is insufficient, the rectification efficiency drops significantly, and the received power is not fully utilized.

[0052] This rectification efficiency is maximized when the input power is within a specific range. Within this range, the circuit operates efficiently, and the wireless power transmission signal is effectively converted into DC power.

[0053] Furthermore, when the input power becomes excessive (more than 10 dBm in this example), the diode enters the breakdown region, and its efficiency decreases. This phenomenon occurs because excessive input power causes energy loss.

[0054] Therefore, it is preferable that the intensity of the power transmitted for communication is adjusted to be approximately the same as the intensity of the power received for wireless power transfer. Specifically, it is preferable that the intensity of the power transmitted for communication is adjusted to be within 10 dB of the intensity of the power received for wireless power transfer. This adjustment makes it possible to efficiently operate both the communication and wireless power transfer functions through the antenna element 13.

[0055] Here, a bridge rectifier circuit was used as an example to explain the rectifier circuit. However, this technology is not limited to bridge rectifier circuits, and other rectification methods can also be applied. For example, half-wave rectifier circuits, voltage doubler rectifier circuits, single-shunt rectifier circuits, etc., can also be applied as rectifier circuits. The selection of the rectifier circuit in this technology is determined appropriately according to the required output voltage, the device characteristics of the diodes, and the overall system efficiency and operating environment. By selecting the appropriate rectification method, the functions of communication and wireless power transfer are optimized, improving the overall efficiency of the device and increasing design flexibility.

[0056] [(12) Frequency Bands] The communication and wireless power supply device of this technology can utilize multiple frequency bands, and the communication and wireless power supply functions can be optimized with appropriate frequencies according to the design. For example, a configuration can be considered in which the 2.4 GHz and 5.7 GHz bands of the Wi-Fi are used for communication, and the 920 MHz band is used for wireless power supply. It is also possible to design a device that supports the frequency bands of mobile communication and millimeter-wave communication, and the use of the 24 GHz and 61 GHz bands for wireless power supply is also possible.

[0057] The choice of frequency band is greatly influenced by the degree of freedom in antenna design and its directional characteristics. Generally, the higher the frequency, the smaller the antenna size can be, so in high-frequency bands, it becomes possible to integrate many antennas on a single board. For example, in the 920 MHz band, the limit is one antenna to be placed on a 10 cm x 10 cm board, but when using the 24 GHz band, it is possible to place tens to hundreds of antennas on the same board. This improvement in antenna integration makes it possible to build systems with high directivity, contributing to improved efficiency in communication and wireless power transfer.

[0058] This technology, in addition to communication and wireless power transfer, utilizes multiple frequency bands to enable the sharing of functions such as sensing, radar, and tracking within the same antenna element. This multi-functional design allows for the simultaneous implementation of various functions tailored to different applications, such as those listed below.

[0059] This technology allows for the processing of sensing signals in a specific frequency band, enabling the acquisition of environmental information and condition monitoring. For example, it can be shared with a sensor module used by IoT devices to acquire data such as ambient temperature, humidity, and distance in real time, allowing for the acquisition of environmental data in parallel with communication and wireless power transfer. The sensing signals are assigned to a separate frequency band to avoid interference with wireless power transfer and communication signals, and are adjusted to be efficiently received and transmitted by the antenna element.

[0060] Furthermore, this technology also allows for the implementation of radar functionality using antenna elements. For example, by using 24GHz or 77GHz radar signals for short-range distance measurement and object detection, the device can understand its surroundings. This radar functionality can be applied to in-vehicle devices and drones, and by coexisting with wireless power transfer and communication, real-time location information acquisition and obstacle avoidance can be performed within the same device.

[0061] Furthermore, the tracking function processes signals to track the location of specific tags or moving objects, allowing the device to acquire location information of the target object in real time. This technology utilizes tracking signals in frequency bands such as the 920 MHz band and the 2.4 GHz band, enabling object location management and motion monitoring in combination with systems such as RFID and beacons. This enables efficient management in commercial applications such as inventory management and logistics tracking in warehouses. [(13) Effects] This technology is optimized so that both communication and wireless power transfer functions operate simultaneously with high efficiency, minimizing energy consumption. Specifically, power supplied from the communication circuit is used efficiently, and the configuration that does not place additional elements between the antenna and the rectifier circuit improves the power reception efficiency during wireless power transfer. As a result, the power consumption of the entire device is reduced, and the operating time of battery-powered products can be expected to be extended. It also contributes to improved sustainability and environmental protection.

[0062] By sharing communication and wireless power transfer functions, the number of components is reduced, enabling smaller and lower-profile devices. This increases installation flexibility, allowing devices to be easily installed even in limited spaces. For example, speakers can be made thinner, resulting in less protrusion when mounted on a wall. Furthermore, it becomes easier to incorporate wireless power transfer functionality into devices with limited internal space, such as smartphones. In addition, game controllers can be wirelessly powered without compromising usability, improving convenience.

[0063] This technology enables simultaneous and highly efficient communication and wireless power transfer, eliminating the need for complex switching control systems. This reduces the burden on control circuits and software, simplifying the system. Furthermore, it improves the overall reliability of the device, allowing users to seamlessly utilize both functions.

[0064] Furthermore, the shared configuration for communication and wireless power transfer reduces the number of parts, lowering manufacturing costs. Miniaturization reduces the amount of materials used and simplifies the manufacturing process, thus reducing the environmental impact. The device's power-saving performance contributes to reducing the environmental burden not only during use but also after disposal, enhancing its value as an environmentally friendly product.

[0065] As described above, this technology's communication and wireless power supply device offers several advantages, including reduced power consumption, miniaturization of the device, elimination of the need for complex control, and reduction of manufacturing costs and environmental impact. This technology provides a significant improvement over conventional technologies, strengthening market competitiveness and offering users high convenience and added value.

[0066] Furthermore, the effects described herein will also occur in other embodiments described later. Moreover, the effects described herein are not necessarily limited to those described herein and may be any of the effects described herein.

[0067] [(14) Example 1] An example of the configuration of a communication and wireless power supply device according to the present technology will be described with reference to Figures 5 and 6. Figure 5 is a schematic perspective view showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of the present technology. Figure 6 is a block diagram showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of the present technology.

[0068] As shown in Figure 5, the dielectric substrate 14 functions as a base for supporting the antenna element 13, the rectifier circuit 12 for wireless power transmission, and the communication circuit 11. The dielectric substrate 14 acts as an insulator, providing stability and mechanical support for the entire antenna structure.

[0069] As an example, a loop-shaped antenna element 13 is arranged on the dielectric substrate 14. This antenna element 13 is made of a conductor. The communication circuit 11 and the rectifier circuit 12 are electrically connected to the antenna element 13 via wiring 18.

[0070] In this configuration, the communication and wireless power supply functions share the same antenna element 13 and operate without interference. As shown in Figure 6, the communication circuit 11 and the antenna element 13 are coupled by capacitive coupling (coupling via capacitor 15).

[0071] One example of a method for realizing capacitive coupling is a configuration that utilizes conductor patterns arranged on both the front and back surfaces of a dielectric substrate 14. Conductor patterns are placed on the front and back surfaces of the dielectric substrate 14 and function as capacitances. In this configuration, the dielectric substrate 14 itself acts as a dielectric, and an appropriate capacitance can be formed by adjusting the material and thickness of the dielectric substrate 14 and the area of ​​the conductor patterns. Since no additional components are required, circuit simplification and a reduction in the number of components can be expected.

[0072] Alternatively, a configuration using a capacitor may be applied. This method involves placing a capacitor between the communication circuit 11 and the antenna element 13, and transmitting the signal through its capacitance. In this method, a capacitor with the desired capacitance value can be selected according to the design, enabling efficient transmission of communication signals.

[0073] By employing capacitive coupling, signal transmission between the communication circuit 11 and the antenna element 13 is performed efficiently, and signal loss can be significantly reduced compared to the conventional direct connection configuration.

[0074] Furthermore, in capacitive coupling, physical isolation is maintained between the communication circuit 11 and the antenna element 13, making it possible to effectively suppress interference and leakage of high-frequency signals. In addition, by adjusting the capacitance of the capacitor 15 used in capacitive coupling, impedance matching in a specific communication frequency band can be optimized, further improving communication efficiency. In this technology, the use of small capacitors that can be built into the printed circuit board enables further space saving and simplification of the circuit configuration.

[0075] Furthermore, the adoption of capacitive coupling enables highly efficient energy transmission between the antenna element 13 and the communication circuit 11, ensuring reliable transmission of communication signals to the outside. On the other hand, since the design prevents signal interference to the rectifier circuit 12 via the antenna element 13, there is a low possibility of impairing the efficiency of both communication and wireless power supply functions even when operating simultaneously.

[0076] In summary, this embodiment realizes both communication and wireless power transfer functions in a space-saving manner, achieves miniaturization and increased efficiency of the entire antenna structure, and contributes to the simplification and cost reduction of the manufacturing process.

[0077] [(15) Example 2] An example of the configuration of a communication and wireless power supply device according to the present technology will be described with reference to Figures 7 and 8. Figure 7 is a schematic perspective view showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of the present technology. Figure 8 is a block diagram showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of the present technology.

[0078] In this configuration, the communication circuit 11 and the antenna element 13 are coupled by inductive coupling (for example, coupling via wiring 18). Inductive coupling utilizes the interaction of magnetic fields between two conductors. As shown in Figure 7, in this example configuration, inductive coupling is performed between the two conductors, the antenna element 13 and the wiring 18. As shown in Figure 8, the communication circuit 11 and the antenna element 13 are coupled by inductive coupling (for example, coupling via wiring 18). With this configuration, communication and wireless power transmission signals can be transmitted efficiently, and interference can be minimized.

[0079] In inductive coupling, the wiring 18 is designed to exhibit high coupling efficiency for a specific frequency band. Specifically, the design of the wiring 18 is optimized so that the frequency band used for communication and the frequency band used for wireless power transfer are effectively separated. As a result, communication signals are transmitted and received without affecting the rectifier circuit 12 for wireless power transfer, and wireless power transfer signals are also efficiently converted to DC power.

[0080] Furthermore, by employing inductive coupling, highly efficient energy transmission between the communication circuit 11 and the antenna element 13 is achieved. In particular, the coupling strength due to inductive coupling can be adjusted by the design of the wiring 18 and the relative positional relationship of the conductors, thereby enabling optimization according to the application and design requirements of each device.

[0081] Furthermore, the inductive coupling configuration can be easily mounted on a printed circuit board, significantly simplifying the number of components and the manufacturing process. For example, by directly forming the wiring 18 on the printed circuit board, additional components can be minimized. This allows for a smaller overall device and enables low-cost manufacturing.

[0082] Furthermore, by utilizing the properties of inductive coupling, an environment is provided in which communication signals and wireless power supply signals operate without mutual interference. This technology achieves higher efficiency, space savings, and reduced manufacturing costs for the device through the appropriate design of the wiring 18.

[0083] [(16) Example 3] A frequency filter that functions in a predetermined frequency band may be placed between the communication circuit 11 and the antenna element. This will be explained with reference to Figure 9. Figure 9 is a block diagram showing an example of the configuration of a communication / wireless power supply device 1 according to one embodiment of the present technology.

[0084] As shown in Figure 9, a first frequency filter 21, which functions in the communication frequency band, is positioned between the communication circuit 11 and the antenna element 13. This first frequency filter 21 functions to ensure that communication signals are transmitted efficiently without interference with radio signals.

[0085] The first frequency filter 21 may be configured as, for example, a bandpass filter, a lowpass filter, or a highpass filter to control the passage of signals in the communication frequency band. In the case of a bandpass filter, the transmission efficiency of communication signals can be improved by selectively passing only signals in the communication frequency band and removing other unwanted frequency components. Alternatively, by employing a lowpass filter or a highpass filter, the upper or lower frequency components of the communication frequency band can be effectively filtered, preventing unwanted interference components from entering the communication circuit 11.

[0086] In this way, by arranging the first frequency filter 21 between the communication circuit 11 and the antenna element 13, a configuration is realized in which the communication signal and the wireless power supply signal can stably coexist in different frequency bands. As a result, both the communication and wireless power supply functions operate with high efficiency without interfering with each other, improving the performance of the communication and wireless power supply device 1.

[0087] The first frequency filter 21 may have, for example, a capacitor 15 (see Figure 6) or wiring 18 (see Figure 8). This allows the communication circuit 11 and the antenna element 13 to be coupled by capacitive coupling or inductive coupling.

[0088] In the communication and wireless power supply device 1 relating to this technology, the first frequency filter 21 is designed to pass, for example, a 2.4 GHz communication frequency band, and may be optimized to maximize the transmission efficiency of the communication signal. Specifically, the capacitors and other components included in the first frequency filter 21 may be adjusted to optimize the pass characteristics in the 2.4 GHz frequency band, and designed to maximize the radiated power of the communication signal in this band.

[0089] Figure 10 is a graph showing an example of the operating characteristics of a communication / wireless power supply device 1 according to one embodiment of this technology. The horizontal axis represents input power (dBm), and the vertical axis represents efficiency. This graph shows the power radiated from the antenna element 13 and the power rectified by the rectifier circuit 12 when the communication circuit 11 outputs a signal.

[0090] Line L4 indicates the power when the signal sent from the communication circuit 11 is radiated to the outside via the antenna element 13.

[0091] Line L5 represents the power that flows into the rectifier circuit 12, where a portion of the signal transmitted from the communication circuit 11 is rectified and reused. This value is low due to the presence of the first frequency filter 21. A low value means that the signal from the communication circuit 11 is mainly radiated to the outside from the antenna element 13, and backflow into the rectifier circuit 12 is suppressed.

[0092] As is clear from this graph, this technology enables the communication function and the wireless power supply function to operate efficiently without interference. In particular, the signal from the communication circuit 11 is efficiently radiated to the outside via the antenna element 13, while unnecessary power inflow into the rectifier circuit 12 is minimized, thus preventing a decrease in communication performance.

[0093] Figure 11 is a graph showing an example of the operating characteristics of a communication / wireless power supply device 1 according to one embodiment of this technology. This graph shows the power operating characteristics when the antenna element 13 receives power for wireless power supply.

[0094] Line L6 indicates the efficiency when the wireless power transmission signal received by the antenna element 13 is transmitted to the rectifier circuit 12 and rectified as DC power. This line shows that as the input power increases, the rectified power reaches a maximum value once, and then the efficiency decreases if the input power increases too much. This confirms that the rectifier circuit 12 and the antenna element 13 are operating optimally under specific input conditions.

[0095] Line L7 indicates the efficiency of the power flowing back into the communication circuit 11 from the wireless power transmission signal received by the antenna element 13. This value is low due to the placement of the first frequency filter 21. Since this value is close to zero, it can be confirmed that the influence of the wireless power transmission signal on the communication circuit 11 is extremely small. In this technology, the antenna element 13 and the coupling configuration are appropriately designed, and a configuration is realized in which the wireless power transmission signal does not interfere with the communication circuit 11.

[0096] In this technology, a simulation circuit shown in Figure 12 was used to confirm that both communication and wireless power supply functions operate efficiently without interference. Figure 12 is a circuit diagram showing an example configuration of a communication and wireless power supply device according to one embodiment of this technology.

[0097] The inductor Lc and resistor Rc constitute a communication circuit. This circuit generates a communication signal and radiates it to the outside via an antenna element. It is also designed to ensure efficient transmission of the communication signal.

[0098] Capacitors C1 and C2, and inductor L1 constitute a first frequency filter, which separates the communication signal from the wireless power transmission signal. Specifically, the first filter circuit is designed to have characteristics suitable for the frequency band of the communication signal, minimizing interference when the communication signal is transmitted to the antenna element. This enables stable signal processing even in environments where communication and wireless power transmission coexist.

[0099] The inductor La and resistor Ra constitute the antenna element. This antenna element is capable of handling both communication signals and wireless power transmission signals, and has the characteristics to efficiently transmit each signal.

[0100] The circuit located to the right of the antenna element constitutes a rectifier circuit, which is responsible for converting the wireless power transmission signal into DC power. The rectifier circuit includes a diode bridge and capacitors, and efficiently rectifies the wireless power transmission signal received by the antenna element, providing a stable power supply to the load RL.

[0101] Simulations and optimizations were performed with the communication frequency set to 2.4 GHz and the wireless power transfer frequency to 1 GHz. In these simulations, an input power of 10 dBm was used as the baseline, and optimization was performed in the range of -30 dBm to 20 dBm. The simulations used SPICE parameters for Skyworks SMS7630 diodes, and each parameter was adjusted to achieve high-efficiency operation of both communication and wireless power transfer.

[0102] Figure 13 is a table showing an example of simulation results using the circuit shown in Figure 12.

[0103] The values ​​shown as "examples" are optimal values ​​obtained from simulations and are set to a configuration that maximizes both communication and wireless power transfer functions. These values ​​have been adjusted to ensure the most stable and efficient performance of the device under specific operating conditions, and can therefore be considered recommended values ​​in one embodiment of the present invention.

[0104] The value indicated as "Min" represents the minimum value that the parameter can take, defining the lower limit of the range in which the device operates normally. The Min value for each parameter indicates the range in which the communication and wireless power supply functions can operate without interfering with each other while ensuring the minimum necessary performance. Depending on the specific usage conditions and configuration, it may be possible to set the parameter close to the Min value.

[0105] The value indicated as "Max" represents the maximum possible value for the parameter and defines the upper limit of the range in which the device operates normally. The Max value for each parameter is the maximum value required for both communication and wireless power transfer functions to continue operating normally; exceeding this value may result in reduced efficiency.

[0106] [(17) Example 4] Another example of a frequency filter placed between the communication circuit 11 and the antenna element will be described with reference to Figure 14. Figure 14 is a block diagram showing an example configuration of a communication / wireless power supply device 1 according to one embodiment of the present technology.

[0107] As shown in Figure 14, a second frequency filter 22, which functions in the wireless power transmission frequency band, is positioned between the communication circuit 11 and the antenna element 13. This second frequency filter 22 is a component that prevents signals in the wireless power transmission frequency band from entering the communication circuit 11 and ensures the stability of the communication function.

[0108] The second frequency filter 22 is configured, for example, as a bandstop filter, and plays the role of selectively blocking only signals in the frequency band used for wireless power transmission. This bandstop filter makes it possible to maintain stable communication without affecting the communication frequency band when wireless power transmission signals are transmitted through the antenna element 13.

[0109] The second frequency filter 22 may have, for example, a capacitor 15 (see Figure 6) or wiring 18 (see Figure 8). This allows the communication circuit 11 and the antenna element 13 to be coupled by capacitive coupling or inductive coupling.

[0110] [(18) Example 5] An example of the configuration of a communication and wireless power supply device according to the present technology will be described with reference to Figure 15. Figure 15 is a block diagram showing an example of the configuration of a communication and wireless power supply device 1 according to one embodiment of the present technology.

[0111] As shown in Figure 15, the rectifier circuit 12 and the antenna element 13 may be coupled via near-field coupling. In this configuration example, the rectifier circuit 12 and the antenna element 13 are coupled via an inductor 16.

[0112] Furthermore, as in this configuration, it is also possible to adopt a configuration in which the method of coupling the communication circuit 11 and the antenna element 13 is different from the method of coupling the rectifier circuit 12 and the antenna element 13.

[0113] For example, the communication circuit 11 and the antenna element 13 can be coupled capacitively to achieve efficient transmission of communication signals, while the rectifier circuit 12 and the antenna element 13 can be coupled inductively to transmit wireless power supply signals to the rectifier circuit with high efficiency. By using different coupling methods in this way, the communication function and the wireless power supply function can be optimized, and both functions can operate stably and efficiently without mutual interference.

[0114] Furthermore, by using different coupling methods for the communication circuit 11 and the rectifier circuit 12, impedance matching in specific frequency bands becomes easier, improving the overall design flexibility of the device. This allows for the appropriate selection of frequency bands for communication and wireless power transfer, and the selection of the optimal coupling method, thereby improving the performance of the device.

[0115] Furthermore, the embodiments described above may be implemented in combination. For example, both the first frequency filter 21 and the second frequency filter 22 may be placed between the communication circuit 11 and the antenna element 13.

[0116] The above description of the communication and wireless power supply device according to the first embodiment of this technology can be applied to other embodiments of this technology, unless there are any particular technical inconsistencies.

[0117] [2. Second Embodiment of the Technology (Example 2 of a Communication / Wireless Power Supply Device)] The communication / wireless power supply device according to the technology may have a configuration that allows for the retrofitting of an antenna element. This configuration allows the user to later attach the most suitable antenna element according to the application and installation environment, improving the flexibility and applicability of the device.

[0118] In other words, this technology provides a communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna placement area where an antenna element shared by both communication and wireless power supply can be placed, wherein the communication circuit is coupled with the antenna element in a frequency band different from the frequency band used for wireless power supply.

[0119] An example of the configuration of the communication and wireless power supply device according to this embodiment will be described with reference to Figure 16. Figure 16 is a block diagram showing an example of the configuration of the communication and wireless power supply device 1 according to one embodiment of this technology.

[0120] As shown in Figure 16, the communication and wireless power supply device 1 comprises a communication circuit 11, a rectifier circuit 12 for wireless power supply, and an antenna placement area 131 on which an antenna element can be placed. This antenna placement area 131 is a conductive pad or the like on the substrate for connecting and fixing the antenna element, and is arranged to ensure electrical coupling between the antenna and the circuit. The antenna element 13 is later attached to this antenna placement area 131.

[0121] By employing add-on antenna elements, the device's structure becomes modular, allowing the use of antennas that accommodate different frequency bands and power requirements. For example, selecting antenna elements according to specific communication standards or wireless power supply specifications enables efficient signal transmission and power supply. This configuration is also suitable when there are constraints on the installation environment or when sharing between different devices is required, significantly improving the versatility and design flexibility of the device.

[0122] In this technology, it is preferable that the communication circuit 11, the rectifier circuit 12, and the antenna placement area 131 are integrated as a module. This allows the communication and wireless power supply circuits to be compactly integrated, resulting in a smaller device. Modularization also simplifies the manufacturing and assembly processes, improving mass production efficiency. Furthermore, because each circuit is integrated, the efficiency of wiring and coupling is increased, and the performance of communication and wireless power supply is maximized.

[0123] This modular configuration offers greater flexibility in installation, enables application to various small devices, and simplifies external connectivity.

[0124] The above description of the communication and wireless power supply device according to the second embodiment of this technology can be applied to other embodiments of this technology, unless there are any particular technical inconsistencies.

[0125] [3. Third Embodiment of the Technology (Example of a Communication Device)] The technology provides a communication device (communication module) that can be retrofitted to a communication / wireless power supply device.

[0126] In other words, this technology provides a communication device that includes a communication circuit, the communication circuit is coupled to an antenna element in a frequency band different from the frequency band used for wireless power transfer, and the antenna element is shared for both communication and wireless power transfer.

[0127] An example of the configuration of a communication device according to this embodiment will be described with reference to Figure 17. Figure 17 is a block diagram showing an example of the configuration of a communication device 1A according to one embodiment of this technology.

[0128] As shown in Figure 17, the communication device 1A includes a power management circuit 17, a control circuit 19, and a communication circuit 11.

[0129] The power management circuit 17 is a component that supplies the power required for the entire communication device 1A. It receives power supplied from the communication / wireless power supply device and provides stable power to each component. Specifically, the power management circuit 17 is directly connected to the control circuit 19 and the communication circuit 11, and provides appropriate voltage and current for the stable operation of each circuit.

[0130] The control circuit 19 is responsible for overseeing and controlling the entire operation within the communication device 1A. The control circuit 19 operates using power supplied from the power management circuit 17, is connected to the communication circuit 11, and manages the timing of the start and end of the communication function.

[0131] The communication circuit 11 is responsible for transmitting and receiving data and is configured to support specific communication standards and frequency bands. The communication circuit 11 is connected to the control circuit 19 and transmits, receives, and processes signals based on commands from the control circuit 19.

[0132] This communication device 1A is retrofitted to the communication and wireless power supply device described above. As a result, the communication circuit 11 is coupled to the antenna element in a frequency band different from the frequency band used for wireless power supply. This antenna element is shared for both communication and wireless power supply.

[0133] The communication device 1A according to this embodiment is designed to support specific communication standards and frequency bands, and can efficiently cooperate with existing wireless power supply functions. Since the communication device 1A can be retrofitted, communication functions can be flexibly added or modified according to changes in the user's application and communication requirements, expanding the scope of application of the device.

[0134] The above description of the communication device according to the third embodiment of this technology can be applied to other embodiments of this technology, unless there are any particular technical inconsistencies.

[0135] [4. Fourth Embodiment of the Technology (Example of Antenna Element)] The technology provides an antenna element that can be retrofitted to the above-mentioned communication and wireless power supply device. This allows users to later attach the most suitable antenna element according to the application and installation environment, improving the flexibility and applicability of the device.

[0136] In other words, this technology provides an antenna element that is shared for both communication and wireless power transfer, connected to a rectifier circuit for wireless power transfer, and coupled to a communication circuit in a frequency band different from the frequency band used for wireless power transfer.

[0137] The antenna element according to this embodiment will be described again with reference to Figure 16. As shown in Figure 16, the antenna element 13 is configured to be placed in the antenna placement area 131 provided by the communication / wireless power supply device 1. This antenna element 13 is used for both communication and wireless power supply, is connected to the rectifier circuit for wireless power supply, and is coupled to the communication circuit in a frequency band different from the frequency band used for wireless power supply.

[0138] By employing add-on antenna elements, the device's structure becomes modular, allowing the use of antennas that accommodate different frequency bands and power conditions. For example, by selecting antenna elements that match specific communication standards or wireless power supply specifications, efficient signal transmission and power supply can be achieved. Such a configuration is suitable even when there are constraints on the installation environment or when sharing between different devices is required, improving the versatility and design flexibility of the device.

[0139] The above description of the antenna element according to the fourth embodiment of this technology can be applied to other embodiments of this technology, unless there are any particular technical inconsistencies.

[0140] [5. Fifth Embodiment of the Technology (Example of an Electronic Device)] [(1) Application Example 1] The technology provides an electronic device equipped with the above-described communication and wireless power supply device. The communication and wireless power supply device according to the technology can be applied to electronic devices such as the following to improve the efficiency of communication and wireless power supply, save space, and improve the overall usability of the device.

[0141] Smartphones typically have both communication and wireless charging capabilities. Applying this technology to smartphones makes it possible to efficiently perform both communication and wireless charging using the same antenna, and is expected to allow for a smaller device and increased battery capacity through space-saving design.

[0142] Wireless earphones require both wireless charging within the charging case and simultaneous reception of audio signals via communication. This technology enables the efficient coexistence of communication and power supply functions within the earphone itself, resulting in a compact design that allows for extended use.

[0143] Wireless speakers require communication capabilities to receive audio signals and the ability to wirelessly charge their batteries. This technology enables efficient charging and communication without the need for charging cables, improving the design and convenience of the speaker itself.

[0144] Game controllers require data communication with the game console and wireless power supply using a charging stand. This technology makes it possible to achieve efficient communication and wireless power supply simultaneously without compromising the design of the controller itself, thereby improving convenience.

[0145] Wearable devices such as smartwatches require both communication and wireless power supply capabilities. By utilizing this technology, communication and wireless power supply can be efficiently achieved within a limited space, enabling miniaturization and weight reduction of the device.

[0146] In smart remote controls, usability is improved by not only data communication via communication functions but also by charging the battery wirelessly. This technology allows for the integration of communication and power supply while avoiding complex structures.

[0147] Furthermore, this technology can be applied to a wide variety of electronic devices, including motion capture devices, AR / VR devices (head-mounted displays), displays, monitors, drones, and robots. This enables improved flexibility in device design, reduced manufacturing costs, and enhanced user convenience in each field.

[0148] A general configuration of an electronic device as an application example of this technology will be described with reference to Figure 18. Figure 18 is a block diagram showing an example configuration of an electronic device 100 according to one embodiment of this technology.

[0149] As shown in Figure 18, an electronic device 100 according to one embodiment of this technology includes a control circuit / processing unit 101, a communication module 102, an interface module 103, a wireless power supply module 104, and an antenna element 13, among others.

[0150] The control circuit / processing unit 101 manages and controls the overall operation of the electronic device 100, performing communication functions, wireless power supply management, data processing, and signal processing and control with each component of the device. In smartphones, it is responsible for application execution and system management; in wireless earphones, it handles audio processing; in wearable devices, it handles data collection and synchronization; and in wireless speakers, it handles voice processing, providing control functions tailored to the application of each device.

[0151] The communication module 102 is a component that provides communication functions for connecting to external devices and networks, and supports wireless communication standards such as Wi-Fi, Bluetooth®, and NFC. The communication module 102 includes the communication circuit described above and transmits and receives data via communication means appropriate for each device, adapting to device-specific communication functions, such as internet connection for smartphones, Bluetooth® communication for wireless earphones and game controllers, and infrared communication for smart remote controls.

[0152] The interface module 103 is equipped with interfaces and sensors for receiving user operations and environmental information, and includes components according to the intended use of each device. For example, a smartphone may include a touch panel and an accelerometer, wireless earphones may include a touch sensor and a microphone, and a game controller may include a gyroscope. This module efficiently receives operations and information related to communication and wireless power supply, and functions as a user interface.

[0153] The wireless power supply module 104 includes the rectifier circuit for wireless power supply described above, enabling charging and stable power supply via wireless power supply. It is equipped with a battery and provides stable power to each component of the device, while also having power management functions such as voltage regulation and overcharge prevention. This technology enables efficient power supply and power usage in battery-powered devices such as smartphones, wearable devices, and wireless earphones.

[0154] The antenna element 13 is designed to process both communication and wireless power transfer signals together, enabling space saving and efficient signal processing. In this configuration, the antenna element 13 is coupled to both the communication module 102 and the wireless power transfer module 104, allowing for efficient use of the device's internal space and simultaneous operation of communication and wireless power transfer.

[0155] As described above, this technology has a configuration that can efficiently provide communication and wireless power supply functions in various electronic devices, and can be flexibly applied according to the device's use. With this configuration, the communication and wireless power supply device of this technology improves the design flexibility, saves space, and enables highly efficient power management in a variety of devices, thereby improving user convenience.

[0156] [(2) Application Example 2] This technology can be applied to a technology called IoT (Internet of Things), which is the so-called "Internet of Things." IoT is a system in which IoT devices 9001, which are "things," are connected to other IoT devices 9003, the internet, the cloud 9005, etc., and are mutually controlled by exchanging information. IoT can be used in various industries such as agriculture, housing, automobiles, manufacturing, distribution, and energy.

[0157] Figure 19 shows an example of a schematic configuration of an IoT system 9000 to which the technology described herein may be applied. The IoT device 9001 includes various sensors such as a temperature sensor, humidity sensor, illuminance sensor, acceleration sensor, distance sensor, image sensor, gas sensor, and motion sensor. The IoT device 9001 may also include terminals such as smartphones, mobile phones, wearable devices, and game devices. The IoT device 9001 is powered by AC power, DC power, batteries, contactless power supply, or so-called energy harvesting. The IoT device 9001 can communicate by wired, wireless, or proximity wireless communication. Preferably, the communication method is 3G / LTE, Wi-Fi, IEEE 802.15.4, Bluetooth, Zigbee®, or Z-Wave. The IoT device 9001 may switch between multiple of these communication means to communicate.

[0158] IoT devices 9001 may form one-to-one, star-shaped, tree-shaped, or mesh-shaped networks. IoT devices 9001 may connect directly to an external cloud 9005 or through a gateway 9002. IoT devices 9001 are assigned addresses using IPv4, IPv6, 6LoWPAN, etc. Data collected from IoT devices 9001 is transmitted to other IoT devices 9003, servers 9004, cloud 9005, etc. The timing and frequency of data transmission from IoT devices 9001 can be suitably adjusted, and the data may be compressed before transmission. Such data may be used as is, or it may be analyzed by computer 9008 using various methods such as statistical analysis, machine learning, data mining, cluster analysis, discriminant analysis, combinatorial analysis, and time series analysis. By utilizing such data, various services such as control, warning, monitoring, visualization, automation, and optimization can be provided.

[0159] The technology disclosed herein can also be applied to devices and services related to homes. IoT devices 9001 in a home include washing machines, dryers, hair dryers, microwave ovens, dishwashers, refrigerators, ovens, rice cookers, cooking appliances, gas appliances, fire alarms, thermostats, air conditioners, televisions, recorders, audio equipment, lighting fixtures, water heaters, hot water heaters, vacuum cleaners, fans, air purifiers, security cameras, locks, door / shutter opening and closing devices, sprinklers, toilets, thermometers, scales, blood pressure monitors, and the like. Furthermore, IoT devices 9001 may also include solar cells, fuel cells, storage batteries, gas meters, electricity meters, and distribution boards.

[0160] A low-power communication method is preferable for the IoT device 9001 in the home. The IoT device 9001 may also communicate via Wi-Fi indoors and 3G / LTE outdoors. An external server 9006 for controlling the IoT device may be installed on the cloud 9005 to control the IoT device 9001. The IoT device 9001 transmits data such as the status of household appliances, temperature, humidity, power consumption, and the presence or absence of people and animals inside and outside the house. The data transmitted from household appliances is stored on the external server 9006 via the cloud 9005. New services are provided based on this data. Such an IoT device 9001 can be controlled by voice using voice recognition technology.

[0161] Furthermore, by directly sending information from various household appliances to the television, the status of these appliances can be visualized. Additionally, various sensors can determine the presence or absence of occupants and send data to air conditioners, lighting, etc., allowing their power to be turned on or off. Moreover, advertisements can be displayed on the displays of various household appliances via the internet.

[0162] An example of an IoT system 9000 to which this technology may be applied has been described above. This technology can be suitably applied to the IoT device 9001 among the configurations described above.

[0163] The above description of the electronic device according to the fifth embodiment of this technology can be applied to other embodiments of this technology, unless there is a particular technical inconsistency.

[0164] [6. Sixth Embodiment of the Technology (Example of Method for Manufacturing a Communication and Wireless Power Supply Device)] The technology provides a method for manufacturing a communication and wireless power supply device, which includes arranging a communication circuit, arranging a rectifier circuit for wireless power supply, arranging an antenna element that is used for both communication and wireless power supply, and coupling the communication circuit and the antenna element in a frequency band different from the frequency band used for wireless power supply.

[0165] The method for manufacturing a communication and wireless power supply device of this technology will be explained with reference to Figure 20. Figure 20 is a flowchart showing an example of a method for manufacturing a communication and wireless power supply device according to one embodiment of this technology.

[0166] Step S1 involves placing the communication circuit inside the device. Specifically, a communication circuit module is prepared, precisely positioned in a predetermined location on the device's circuit board, and then the circuit is fixed to the board. Next, power lines and control signals are connected, and the wiring between the communication circuit and other components is completed.

[0167] Next, in step S2, a rectifier circuit for wireless power transmission is arranged. The rectifier circuit consists of components such as diodes, capacitors, and coils, and is positioned on the circuit board in a predetermined location so as to be efficiently coupled with the antenna element.

[0168] Next, in step S3, an antenna element shared by both communication and wireless power transmission is placed on the device substrate. This antenna element is positioned and fixed in place on the substrate so as to be optimally coupled with both the communication circuit and the rectifier circuit. The antenna element is tuned based on its designed characteristics to achieve high efficiency in both communication and power transmission.

[0169] Finally, in step S4, the communication circuit and antenna element are coupled in a frequency band different from the frequency band used for wireless power transfer. This coupling is designed to allow communication signals and wireless power transfer signals to be transmitted and received efficiently without interference. By adjusting the frequency characteristics and impedance matching, a configuration is completed in which each circuit operates independently while sharing the antenna element.

[0170] The above description of the method for manufacturing a communication and wireless power supply device according to the sixth embodiment of this technology can be applied to other embodiments of this technology, unless there are any particular technical inconsistencies.

[0171] Furthermore, the embodiments relating to this technology are not limited to the embodiments described above, and various modifications are possible without departing from the gist of this technology. The specific numerical values, shapes, materials (including composition), etc. described in each embodiment are examples only and are not limited thereto.

[0172] Furthermore, this technology can also take the following configurations: [1] A communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna element used for both communication and wireless power supply, wherein the communication circuit is coupled to the antenna element in a frequency band different from the frequency band used for wireless power supply. [2] The communication and wireless power supply device according to [1], wherein the rectifier circuit and the antenna element are directly connected and no elements are interposed in between. [3] The communication and wireless power supply device according to [1] or [2], wherein the coupling of the communication circuit and the antenna element is performed by near-field coupling. [4] The communication and wireless power supply device according to [3], wherein the near-field coupling is capacitive coupling. [5] The communication and wireless power supply device according to [3], wherein the near-field coupling is inductive coupling. [6] The communication and wireless power supply device according to any one of [1] to [5], wherein the rectifier circuit and the antenna element are directly connected or near-field coupled. [7] The communication and wireless power supply device according to any one of [1] to [6], wherein the communication circuit and the antenna element are configured to be impedance-matched in the communication frequency band and impedance-mismatched in the wireless power supply frequency band. [8] The communication and wireless power supply device according to any one of [1] to [7], wherein the rectifier circuit and the antenna element are configured to be impedance-matched in the wireless power supply frequency band and impedance-mismatched in the communication frequency band. [9] The communication and wireless power supply device according to any one of [1] to [8], wherein a first frequency filter that functions in the communication frequency band is placed between the communication circuit and the antenna element.

[10] The communication and wireless power supply device according to [9], wherein the first frequency filter is a bandpass filter, a lowpass filter, or a highpass filter.

[11] The communication and wireless power supply device according to any one of [1] to

[10] , wherein a second frequency filter that functions in the wireless power supply frequency band is placed between the communication circuit and the antenna element.

[12] The communication and wireless power supply device according to

[11] , wherein the second frequency filter is a bandstop filter.

[13] A communication and wireless power supply device according to any one of [1] to

[12] , wherein the intensity of the transmitted power for communication is adjusted to be approximately the same as the intensity of the received power for wireless power supply.

[14] A communication and wireless power supply device according to

[13] , wherein the intensity of the transmitted power for communication is adjusted to be within 10 dB of the intensity of the received power for wireless power supply.

[15] A communication and wireless power supply device according to any one of [1] to

[14] , wherein the communication circuit, the rectifier circuit, and the antenna element are integrated as a module.

[16] An electronic device comprising a communication and wireless power supply device according to any one of [1] to

[15] .

[17] A communication and wireless power supply device comprising a communication circuit, a rectifier circuit for wireless power supply, and an antenna placement area on which an antenna element shared by both communication and wireless power supply can be placed, wherein the communication circuit is coupled with the antenna element in a frequency band different from the frequency band used for wireless power supply.

[18] The communication and wireless power supply device according to

[17] , wherein the communication circuit, the rectifier circuit, and the antenna placement area are integrated as a module.

[19] A communication device comprising a communication circuit, wherein the communication circuit is coupled to an antenna element in a frequency band different from the frequency band used for wireless power supply, and the antenna element is used for both communication and wireless power supply.

[20] An antenna element used for both communication and wireless power supply, connected to a rectifier circuit for wireless power supply, and coupled to a communication circuit in a frequency band different from the frequency band used for wireless power supply.

[21] A method for manufacturing a communication and wireless power supply device, comprising: arranging a communication circuit; arranging a rectifier circuit for wireless power supply; arranging an antenna element used for both communication and wireless power supply; and coupling the communication circuit and the antenna element in a frequency band different from the frequency band used for wireless power supply.

[0173] 1 Communication / Wireless Power Supply Device 1A Communication Device 11 Communication Circuit 12 Rectifier Circuit 13 Antenna Element 14 Dielectric Substrate 15 Capacitor 16 Inductor 17 Power Management Circuit 18 Wiring 19 Control Circuit 21 First Frequency Filter 22 Second Frequency Filter 100 Electronic Equipment 101 Control Circuit / Processing Unit 102 Communication Module 103 Interface Module 104 Wireless Power Supply Module 131 Antenna Placement Area 9000 IoT System 9001 IoT Device S1 Placement of communication circuit S2 Placement of rectifier circuit S3 Placement of antenna element S4 Connection of communication circuit and rectifier circuit

Claims

Communication circuit and A rectifier circuit for wireless power transfer, It includes an antenna element that is shared for both communications and wireless power transfer, A communication and wireless power supply device in which the communication circuit is coupled to the antenna element in a frequency band different from the frequency band used for wireless power supply. 　 The rectifier circuit and the antenna element are directly connected, with no intermediate components in between. The communication and wireless power supply device according to claim 1. 　 The coupling between the communication circuit and the antenna element is performed by near-field coupling. The communication and wireless power supply device according to claim 1. 　 The aforementioned near-field coupling is a capacitive coupling. The communication and wireless power supply device according to claim 3. 　 The aforementioned near-boundary coupling is an inductive coupling. The communication and wireless power supply device according to claim 3. 　 The rectifier circuit and the antenna element are directly connected or near-field coupled. The communication and wireless power supply device according to claim 1. 　 The communication circuit and the antenna element are configured to have impedance matching in the communication frequency band and impedance mismatch in the wireless power transmission frequency band. The communication and wireless power supply device according to claim 1. 　 The rectifier circuit and the antenna element are configured to have impedance matching in the wireless power transmission frequency band and impedance mismatch in the communication frequency band. The communication and wireless power supply device according to claim 1. 　 A first frequency filter that functions in the communication frequency band is positioned between the communication circuit and the antenna element. The communication and wireless power supply device according to claim 1. 　 The aforementioned first frequency filter is a bandpass filter, a lowpass filter, or a highpass filter. The communication and wireless power supply device according to claim 9. 　 A second frequency filter, which functions in the wireless power transmission frequency band, is positioned between the communication circuit and the antenna element. The communication and wireless power supply device according to claim 1. 　 The second frequency filter is a bandstop filter. The communication and wireless power supply device according to claim 11. 　 The transmission power strength for communications is adjusted to be roughly the same as the reception power strength for wireless power transfer. The communication and wireless power supply device according to claim 1. 　 The transmission power intensity for communications is adjusted so that the difference between it and the reception power intensity for wireless power transfer is within 10 dB. The communication and wireless power supply device according to claim 13. 　 The communication circuit, the rectifier circuit, and the antenna element are integrated as a module. The communication and wireless power supply device according to claim 1. 　 An electronic device comprising the communication and wireless power supply device described in claim 1. 　 Communication circuit and A rectifier circuit for wireless power transfer, It includes an antenna placement area where antenna elements shared by both communications and wireless power transfer can be placed, A communication and wireless power supply device in which the communication circuit is coupled with the antenna element in a frequency band different from the frequency band used for wireless power supply. 　 The communication circuit, the rectifier circuit, and the antenna placement area are integrated as a module. The communication and wireless power supply device according to claim 17. 　 It is equipped with a communication circuit. The aforementioned communication circuit is coupled to the antenna element in a frequency band different from the frequency band used for wireless power transfer. The aforementioned antenna element is used in a communication device for both communication and wireless power transfer.

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