KR102439988B1 - Electronic device for forming radio frequency wave and operation method for thereof - Google Patents

Abstract

According to various embodiments, an electronic device includes a power source, an antenna for forming an RF wave using power received from the power source, a cell array including a plurality of cells, and a processor, wherein the processor includes: It may be set to determine a condition for forming an RF wave, and to adjust a phase characteristic of each of the plurality of cells in response to the condition for forming the RF wave.

Description

ELECTRONIC DEVICE FOR FORMING RADIO FREQUENCY WAVE AND OPERATION METHOD FOR THEREOF

Various embodiments relate to an electronic device for forming an RF wave and a method of operating the same.

For many people living in modern times, portable digital communication devices have become an essential element. Consumers want to be provided with a variety of high-quality services that they want anytime, anywhere. In addition, due to the recent development of IoT (Internet of Thing) technology, various sensors, home appliances, and communication devices that exist in our lives are being networked into one. In order to smoothly operate these various sensors, a wireless power transmission system is required.

In addition, technologies using RF waves in the THz band are being developed. The THz band is known to be harmless to the human body, and accordingly, it can be used to measure various bio-related information such as face recognition and skin condition. In addition, technologies such as high-precision imaging using RF waves in the THz band, analysis of chemical properties of materials, and communication technologies are being developed.

In general, an electronic device that forms an RF wave may adjust the direction or shape of the RF wave by adjusting the phase of each of the array antennas. For example, in order to beamform an RF wave to a specific point, the electronic device may adjust a phase adjustment degree of a phase shifter connected to each of the array antennas. Alternatively, in order to beamform an RF wave to a specific point, the electronic device may adjust the amplitude or attenuation degree of an amplifier or an attenuator connected to each of the array antennas. However, in order to include a phase shifter connected to each of the array antennas, a problem arises in that the volume and mass of the electronic device and the manufacturing cost increase.

The electronic device according to various embodiments may provide an electronic device capable of adjusting at least one of a formation direction or a shape of an RF wave by adjusting at least one of a resonance frequency and a phase constant, and an operating method thereof.

According to various embodiments, an electronic device includes a power source, an antenna for forming an RF wave using power received from the power source, a cell array including a plurality of cells, and a processor, wherein the processor includes: It may be set to determine a condition for forming an RF wave, and to adjust a phase characteristic of each of the plurality of cells in response to the condition for forming the RF wave.

According to various embodiments, an electronic device includes a power source, a cell array including a plurality of cells each forming a sub-RF wave using power received from the power source, and a processor, the processor comprising: It may be set to determine a condition for forming the RF wave, and to adjust a phase characteristic of each of the plurality of cells in response to the condition for forming the RF wave.

According to various embodiments of the present disclosure, in a method of operating an electronic device including a plurality of cells, determining an RF wave formation condition and adjusting a phase characteristic of each of the plurality of cells in response to the RF wave formation condition It may include an action to

The electronic device according to various embodiments may provide an electronic device capable of adjusting at least one of a formation direction or a shape of an RF wave by adjusting at least one of a resonance frequency and a phase constant, and an operating method thereof. Accordingly, a relatively small electronic device that does not include the same number of phase shifters, amplifiers, or attenuators as the number of channels may be formed by adjusting the RF wave.

1 shows a conceptual diagram of RF wave formation according to various embodiments of the present invention.
2 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
3A and 3B are block diagrams illustrating block diagrams of electronic devices and other electronic devices according to various embodiments of the present disclosure;
4A and 4B are diagrams for explaining a cell array of an electronic device according to various embodiments of the present disclosure;
5 is a block diagram illustrating a block diagram of an electronic device and another electronic device according to various embodiments of the present disclosure;
6 is a diagram for describing a cell array of an electronic device according to various embodiments of the present disclosure;
7 is a diagram of a cell according to various embodiments.
8 is a graph illustrating a relationship between a phase characteristic and a resonant frequency of a metamaterial structure according to various embodiments of the present disclosure;
9 is a diagram of a cell array according to various embodiments.
10 is a block diagram of an electronic device according to various embodiments of the present disclosure;
11 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
12A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
12B is a diagram illustrating beam spreading according to various embodiments of the present disclosure;
13A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
13B is a diagram illustrating a circular polarization wave according to various embodiments of the present disclosure;
14A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
14B is a diagram for describing multi-frequency reception by an electronic device according to various embodiments of the present disclosure;
15A and 15B are flowcharts illustrating a method of operating an electronic device according to various embodiments of the present disclosure;
16 is a diagram of an electronic device according to various embodiments of the present disclosure;

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. The examples and terms used therein are not intended to limit the technology described in this document to specific embodiments, and should be understood to cover various modifications, equivalents, and/or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for like components. The singular expression may include the plural expression unless the context clearly dictates otherwise. In this document, expressions such as “A or B” or “at least one of A and/or B” may include all possible combinations of items listed together. Expressions such as "first," "second," "first," or "second," can modify the corresponding elements, regardless of order or importance, and to distinguish one element from another element. It is used only and does not limit the corresponding components. When an (eg, first) component is referred to as being “connected (functionally or communicatively)” or “connected” to another (eg, second) component, that component is It may be directly connected to the component or may be connected through another component (eg, a third component).

In this document, "configured (or configured to)" means "suitable for," "having the ability to," "modified to, ," "made to," "capable of," or "designed to," may be used interchangeably. In some contexts, the expression “a device configured to” may mean that the device is “capable of” with other devices or components. For example, the phrase “a processor configured (or configured to perform) A, B, and C” refers to a dedicated processor (eg, an embedded processor) for performing the operations, or by executing one or more software programs stored in a memory device. , may refer to a general-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

The electronic device according to various embodiments of the present disclosure may include, for example, a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, a server, a PDA, and a PMP. It may include at least one of a portable multimedia player, an MP3 player, a medical device, a camera, and a wearable device. A wearable device may be an accessory (e.g., watch, ring, bracelet, anklet, necklace, eyewear, contact lens) or head-mounted-device (HMD), integrated in textiles or clothing (e.g., electronic garment); It may include at least one of a body-attached (eg, skin pad) or a bio-implantable circuit. In some embodiments, the electronic device is, for example, a television, digital video disk (DVD) player, audio, refrigerator, air conditioner, vacuum cleaner, oven, microwave oven, washing machine, air purifier, set top box, home automation control. It may include at least one of a panel, a security control panel, a media box, a game console, an electronic dictionary, an electronic key, a camcorder, or an electronic picture frame.

In another embodiment, the electronic device may include various medical devices (eg, various portable medical measuring devices (eg, a blood glucose meter, a heart rate monitor, a blood pressure monitor, or a body temperature monitor), magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), Computed tomography (CT), imagers, or ultrasound machines, etc.), navigation devices, global navigation satellite systems (GNSS), event data recorders (EDRs), flight data recorders (FDRs), automotive infotainment devices, marine electronic equipment (e.g. navigation devices for ships, gyro compasses, etc.), avionics, security devices, head units for vehicles, industrial or household robots, drones, ATMs in financial institutions, point of sale (POS) in stores of sales) or IoT devices (eg, light bulbs, various sensors, sprinkler devices, fire alarms, thermostats, street lights, toasters, exercise equipment, hot water tanks, heaters, boilers, etc.). According to some embodiments, the electronic device is a piece of furniture, a building/structure, or a vehicle, an electronic board, an electronic signature receiving device, a projector, or various measuring devices (eg, water, electricity, gas, or a radio wave measuring device). In various embodiments, the electronic device may be flexible, or a combination of two or more of the various devices described above. The electronic device according to the embodiment of the present document is not limited to the above-described devices. In this document, the term user may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) using the electronic device.

1 shows a conceptual diagram of RF wave formation according to various embodiments of the present invention.

The electronic device 100 may form an RF wave in at least one other electronic device 150 or 160 . In this document, when the electronic device 100 or the other electronic device 150 performs a specific operation, for example, the processor included in the electronic device 100 or the other electronic device 150 performs the specific operation or , may mean controlling other hardware to perform a specific operation. Alternatively, when the electronic device 100 or the other electronic device 150 performs a specific operation, for example, at least one command stored in a memory included in the electronic device 100 or the other electronic device 150 is executed. Accordingly, it may mean that the processor performs a specific operation or controls other hardware to perform a specific operation. In various embodiments, the electronic device 100 may include a plurality of cells 111 to 126 . Each of the cells 111 to 126 may have a meta material structure capable of adjusting a phase of an RF wave when an RF wave formed from another antenna is incident. The metamaterial structure may have negative permeability and negative permittivity at a specific frequency. The metamaterial structure may have different phase characteristics according to a change in the resonant frequency. The meta-material structure will be described in more detail with reference to FIG. 7 . Alternatively, each of the cells 111 to 126 may have a meta-material structure capable of adjusting a phase when forming an RF wave. That is, each of the cells 111 to 126 may adjust the phase of the incident RF wave, or may adjust the phase to form the RF wave itself. The degree of phase adjustment by the cells 111 to 126 may be determined by the electronic device 100 . The electronic device 100 may determine the degree of phase adjustment of each of the cells 111 to 126 according to various operation modes. For example, the electronic device 100 may determine the degree of phase adjustment of each of the cells 111 to 126 according to various RF wave forming modes such as beam forming, beam spreading, and polarization wave generation. have. Alternatively, the electronic device 100 may determine the degree of phase adjustment of each of the cells 111 to 126 according to the reception mode. Various operation modes will be described later in more detail. In the embodiment of FIG. 1 , it is assumed that the electronic device 100 performs beamforming. For convenience of description, an RF wave generated by each of the cells 111 to 126 or an RF wave passing through each of the cells 111 to 126 will be referred to as a sub RF wave.

In various embodiments of the present disclosure, the electronic device 100 may adjust the phase of each of the sub RF waves generated in the cells 111 to 126 or transmitted through the cells 111 to 126 . Meanwhile, the sub RF waves may interfere with each other. For example, sub-RF waves may constructively interfere with each other at one point, and at another point, the sub-RF waves may destructively interfere with each other. The electronic device 100 according to various embodiments of the present disclosure provides each of the sub RF waves generated by the cells 111 to 126 so that the sub RF waves can constructively interfere with each other at the first point (x1, y1, z1). You can adjust the phase. Alternatively, the electronic device 100 may adjust the phase of each of the sub RF waves passing through the cells 111 to 126 so that the sub RF waves may constructively interfere with each other at the first point x1 , y1 , and z1 .

For example, the electronic device 100 may determine that another electronic device 150 is disposed at the first point (x1, y1, z1). Here, the location of the other electronic device 150 may be, for example, a point where an antenna for receiving power of the other electronic device 150 is located. A configuration in which the electronic device 100 determines the location of the other electronic device 150 will be described later in more detail. In order for the other electronic device 150 to wirelessly receive power with high transmission efficiency, sub-RF waves should constructively interfere at the first point (x1, y1, z1). Accordingly, the electronic device 100 may control the cells 111 to 126 so that the sub-RF waves constructively interfere with each other at the first point (x1, y1, z1). Here, controlling the cells 111 to 126 means to change at least one of the resonant frequencies or phase constants of the cells 111 to 126, and thereby the phases of RF waves generated from the cells 111 to 126 or the cells 111 to 126) may mean adjusting the phase of the RF wave passing through. A person skilled in the art will readily understand beam-forming, which is a technique for controlling an RF wave to constructively interfere at a specific point. The shape of the RF wave formed by beam-forming may be referred to as pockets of energy.

Accordingly, the RF wave 130 formed by the sub RF waves may have a maximum amplitude at the first point (x1, y1, z1), and accordingly, the other electronic device 150 may use wireless power with high efficiency. can receive Meanwhile, the electronic device 100 may detect that another electronic device 160 is disposed at the second point (x2, y2, z2). The electronic device 100 may control the cells 111 to 126 so that the sub-RF waves become constructive interference at the second point (x2, y2, z2) in order to charge the other electronic device 160 . Accordingly, the RF wave 131 formed by the sub RF waves may have a maximum amplitude at the second point (x2, y2, z2), and the other electronic device 160 receives wireless power with high transmission efficiency. can do. Alternatively, the electronic device 100 may perform communication with the other electronic devices 150 and 160 , and in this case also may beamform an RF wave toward the other electronic devices 150 and 160 .

In more detail, the other electronic device 150 may be disposed on the relatively right side. In this case, the electronic device 100 may apply a relatively larger delay to the sub RF waves formed from the cells (eg, 114 , 118 , 122 , and 126 ) disposed on the relatively right side. That is, after sub RF waves formed from cells (eg, 111, 115, 119, 123) located on the relatively left are first formed, after a predetermined time passes, sub from cells (eg, 114, 118, 122, 126) arranged on the relatively right side RF waves may be generated. Accordingly, the sub RF waves may simultaneously meet at a relatively right point, that is, the sub RF waves may constructively interfere at a relatively right point. If beam-forming is performed at a relatively central point, the electronic device 100 experiences substantially the same delay as that of the left cell (eg, 111,115,119,123) and the right cell (eg, 114,118,122,126). can be applied. In addition, when beam-forming is performed on the relatively left point, the electronic device 100 applies a greater delay to the left cell (eg, 111,115,119,123) than the right cell (eg, 114,118,122,126). can do. Meanwhile, in another embodiment, the electronic device 100 may oscillate the sub RF waves substantially simultaneously in all of the cells 111 to 126 , and may perform beam-forming by adjusting the phase corresponding to the above-described delay. have.

2 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, in operation 201 , the electronic device 100 may determine the location of another electronic device. The electronic device 100 may determine the location of the electronic device based on at least data input from various sensors. According to an embodiment, the electronic device 100 may determine the location of the electronic device based on at least a communication signal received by the communication circuit. The electronic device 100 may include, for example, a communication circuit having a plurality of antennas (eg, an antenna array). The electronic device 100 may determine the location of the electronic device by using at least one of a reception time of a communication signal from each of the plurality of antennas and a phase of the communication signal. Alternatively, the electronic device 100 may determine the distance between the electronic device 100 and the electronic device using the strength of the communication signal. For example, the communication signal may include information on the transmission strength of the communication signal, and the electronic device 100 compares the transmission strength of the communication signal with the reception strength of the communication signal to compare the communication signal with the electronic device 100 and the electronic device 100 . The distance between the devices can be determined. Alternatively, the electronic device 100 may determine the distance between the electronic device 100 and the electronic device using a time of flight (TOF) of a communication signal. For example, the communication signal may include information on a transmission time, and the electronic device 100 compares a reception time of the communication signal with a transmission time of the communication signal, and a distance between the electronic device 100 and the electronic device. can be judged

According to the multi-h embodiment, the electronic device 100 may include a radar type sensor. The electronic device 100 may generate a transmission wave through a sensor, and may receive a reception wave corresponding thereto. For example, an obstacle such as an electronic device or a human body may be located around the electronic device 100 . The obstacle may mean an object that cannot generate power using RF waves, or may mean another electronic device that is not designated as a charging target. The transmitted wave generated from the sensor may be reflected by an electronic device or an obstacle to form a reflected wave. Due to the reflection, at least one of the amplitude or phase of the transmitted wave may be changed, and accordingly, at least one of the amplitude or phase of the received wave may be different from at least one of the amplitude or phase of the transmitted wave. The electronic device 100 may receive a reflected wave through a sensor, and may determine at least one of an amplitude or a phase of the reflected wave. The sensor of the electronic device 100 may include a plurality of reception antennas, and in this case, a reflected wave may be received by each of the plurality of reception antennas. In various embodiments, the antenna for reception may be used for transmission of a transmission wave, or the electronic device 100 may include a transmission antenna and a reception antenna physically distinct from the antenna for reception. Since the plurality of reception antennas have physically different positions, at least one of the amplitude of the reception wave, the reception time of the reception wave, or the phase of the reception wave in each of the plurality of reception antennas may be different. The electronic device 100 may determine the location of the electronic device based on at least one of an amplitude, a phase, and a reception time of a reception wave received from at least one reception antenna. The electronic device 100 may determine the location of the electronic device by using various radar-based location measurement methods.

According to various embodiments, the electronic device 100 may include a sensor (eg, a camera module) capable of acquiring an image. The electronic device 100 may analyze the acquired image, and may determine the location of at least one of the electronic device and the obstacle based on the analysis result. For example, the electronic device 100 may acquire at least one image for at least one direction around it. The electronic device 100 may continuously acquire a plurality of frame images and detect a change between the frame images. For example, the electronic device 100 may determine that an object that was not detected in the first frame image is included in the second frame image, and accordingly, a subject corresponding to the object at a viewpoint corresponding to the second frame image. may be determined to be located near the electronic device 100 . The electronic device 100 may determine the position of the subject near the electronic device 100 based on at least one of the position of the object in the image and the size of the object. For example, the electronic device 100 may determine the position of the subject based on at least one of a position or a shooting direction of a camera capturing an image, and at least one of a position or size of the subject in the captured image. .

According to various embodiments, the electronic device 100 may determine the position of an object, such as a living body, rather than another electronic device. The electronic device 100 may form an RF wave with respect to an object such as a living body or food rather than another electronic device according to a mode. In this case, the electronic device 100 may determine the position of the object based on data from a radar type sensor, data from a proximity sensor, or an image analysis result.

In operation 203 , the electronic device 100 may adjust a phase characteristic for each cell in response to a location of another electronic device. For example, the electronic device 100 may determine to perform beamforming to a location of another electronic device. The electronic device 100 may adjust a phase characteristic (eg, at least one of a phase constant or a resonant frequency) for each cell so as to be able to beamform an RF wave with respect to a corresponding point. For example, the electronic device 100 may determine to beam-spread the RF wave to another object (eg, a user's face). The electronic device 100 may adjust a phase characteristic for each cell so as to beam-spread the RF wave corresponding to the corresponding area of the corresponding point. For example, the electronic device 100 may determine to form an RF wave having a circular polarization characteristic on another object. The electronic device 100 may adjust a phase characteristic for each cell to have a circular polarization characteristic. In operation 205 , the electronic device 100 may form an RF wave.

3A is a block diagram illustrating a block diagram of an electronic device and another electronic device according to various embodiments of the present disclosure; The embodiment of FIG. 3A will be described in more detail with reference to FIG. 4A. 4A is a diagram for describing a cell array of an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 includes a power source 301 , an antenna 310 , a cell array 312 , a processor 320 , a memory 330 , a communication circuit 340 , and an antenna for communication. (341 to 343). The other electronic device 150 is not limited as long as it is a device that receives power wirelessly, and an antenna 351 for power reception, a rectifier 352 , a converter 353 , a charger 354 , and a processor 355 . , a memory 356 , a communication circuit 357 , and an antenna 358 for communication.

The power source 301 may provide power for transmission to the antenna 310 . The power source 301 may provide, for example, DC power. In this case, an inverter (not shown) that converts DC power into AC power and transmits it to the antenna 310 is the electronic device 100 . may be further included. Meanwhile, in another embodiment, the power source 301 may provide AC power to the antenna 310 . The power source 301 may, for example, generate an electrical signal in the THz band, but it will be understood by those skilled in the art that there is no limit to the frequency. As shown in FIG. 4A , an amplifier 314 may be connected between the power source 301 and the antenna 310 . The amplifier 314 may amplify the power source 301 and provide it to the antenna 310 . Although not shown, the sensor (not shown) may include an antenna for transmitting a transmission wave as a radar type. The antenna 310 and the sensor (not shown) may share the power source 301 , and in this case, the power source 301 may form power having a plurality of frequencies. In another embodiment, the electronic device 100 may include another power source (not shown) for providing power to a sensor (not shown).

The antenna 310 may form an RF wave 311 using the power provided from the power source 301 . The cell array 312 may include a plurality of cells 411 to 426 , for example, as illustrated in FIG. 4A . Each of the plurality of cells 411 to 426 may adjust the phase of each portion of the incident RF wave 311 . Accordingly, in the RF wave 313 passing through the cell array 312 , the phase of at least one sub-RF wave may be adjusted. As shown in FIG. 4A , the RF wave 313 may be beam-formed in a specific direction, and another electronic device 150 may receive the RF wave 313 .

The processor 320 may adjust a phase characteristic of each of the plurality of cells 411 to 426 . The processor 320 may, for example, adjust a phase characteristic of each of the plurality of cells 411 to 426 so that the RF wave 313 is beam-formed to the other electronic device 150 . The processor 320 may adjust the phase characteristics of each of the plurality of cells 411 to 426 by adjusting the magnitude of current or voltage input to each of the plurality of cells 411 to 426 . For example, the processor 310 may control a current of a first magnitude to be applied to the first cell 411 and a current of a second magnitude to be applied to the second cell 412 . In this case, the first cell 411 may have a phase characteristic of delaying the phase of the input sub RF wave by about a first phase, and the second cell 412 may change the phase of the input sub RF wave to the second phase. It may have a phase characteristic of delaying by a degree. Each of the plurality of cells 411 to 426 may have a meta-material structure in which the degree of phase adjustment of the passing RF wave is changed as the magnitude of the input current is changed. The memory 330 may store correlation information between the magnitude of the current input to the cell and the degree of phase adjustment of the RF wave passing therethrough. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the current input to each of the plurality of cells 411 to 426 by using the related information. In another embodiment, the memory 330 may store association information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of an input current for each cell. The processor 320 may adjust the magnitude of the current input to each of the plurality of cells 411 to 426 in response to at least one of the checked operation mode and the direction or distance of the RF wave.

In various embodiments, each of the plurality of cells 411 to 426 may have a meta-material structure in which the degree of phase adjustment of the passing RF wave is changed as the magnitude of the input voltage is changed. For example, the processor 310 may apply a voltage of a first magnitude to the first cell 411 and apply a voltage of a second magnitude to the second cell 412 . In this case, the first cell 411 may have a phase characteristic of delaying the phase of the input sub RF wave by about a first phase, and the second cell 412 may change the phase of the input sub RF wave to the second phase. It may have a phase characteristic of delaying by a degree. The memory 330 may store correlation information between the magnitude of the voltage input to the cell and the degree of phase adjustment of the RF wave passing therethrough. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the voltage input to each of the plurality of cells 411 to 426 by using the association information. In another embodiment, the memory 330 may store association information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of a voltage input for each cell. The processor 320 may adjust the magnitude of the voltage input to each of the plurality of cells 411 to 426 in response to at least one of the checked operation mode and the direction or distance of the RF wave.

In various embodiments, the processor 320 may determine the location of the other electronic device 150 based at least on data acquired by a sensor (not shown). The sensor (not shown) may be, for example, a radar type, and may include an antenna for detecting at least one object. The processor 320 may control at least a portion of the at least one antenna to form a transmission wave. For example, at least one antenna may form a transmission wave at the same time point or at different time points. Alternatively, only one antenna among the at least one antenna may form a transmission wave. The transmitted wave may be reflected by the other electronic device 150 . Accordingly, the reflected wave may travel in a different traveling direction from the transmitted wave. At least one of an amplitude or a phase of the reflected wave may be different from at least one of an amplitude or a phase of the transmitted wave. The antenna may convert the reflected wave into an electrical signal and output it to a sensor (not shown). A sensor (not shown) may sense at least one of information on a phase, amplitude, or reception time of each reflected wave according to an electrical signal output from each antenna. The processor 320 may determine the location of the other electronic device 150 based on at least one of information about the phase, amplitude, or reception time of each reflected wave. The processor 320 may determine the location of the other electronic device 150 by using the degree of change in the reflected wave or through pattern analysis. A person skilled in the art will understand that the processor 320 may determine the position of the other electronic device 150 using various existing radar position measurement methods, and there is no limitation on the position measurement method. In various embodiments, a sensor (not shown) may also determine the location of the other electronic device 150 , and in this case, the processor 320 transmits information on the location of the other electronic device 150 to the sensor (not shown). ) can also be received from

In various embodiments, the sensor (not shown) may be a camera capable of forming an image, and in this case, the processor 320 may determine the location of the other electronic device 150 based at least on the image analysis. A sensor (not shown) may be implemented as a device capable of determining a position in various ways, and there is no limitation in the type thereof. In various embodiments, the sensor (not shown) may include a plurality of devices, for example, a radar and a camera, and in this case, the electronic device 100 uses all of the plurality of position measurement methods to obtain the other electronic device 150 . position can also be determined. Alternatively, the electronic device 100 may receive the communication signal 359 from the other electronic device 150 through the antennas 341 , 342 , and 343 . The processor 320 may determine the location of the other electronic device 150 based on the reception timing of the communication signal 359 at each of the antennas 341 , 342 , and 343 . The processor 320 may determine the location of the other electronic device 150 by using data from a sensor (not shown) and information acquired through the communication circuit 340 together. For example, at least three communication antennas 341 to 343 may be disposed, which may be for determining θ and φ values in a three-dimensional direction, for example, a spherical coordinate system. In more detail, the communication antenna 358 of the other electronic device 150 may transmit the communication signal 359 . In various embodiments, the communication signal 359 may include at least one of identification information of the other electronic device 150 , information required for wireless charging, or at least one sensing information of the other electronic device 150 . Accordingly, the electronic device 100 may determine the direction of the other electronic device 150 without additional hardware by using the communication signal for wireless charging. Meanwhile, the time at which the communication signal 359 is received by the communication antennas 341 to 343 may be different. The processor 320 of the electronic device 100 uses the time (eg, t1, t2, t3) when the communication signal is received from the communication antennas 341, 342, and 343, and the other electronic device 150 for the electronic device 100 ) can be determined. For example, the processor 320 may determine the relative direction of the other electronic device 150 with respect to the electronic device 100 using time difference information of t1-t2, t2-t3, and t3-t1. Alternatively, the processor 320 may determine the relative direction of the other electronic device 150 by using, for example, a lookup table between the difference in reception time for each communication antenna stored in the memory 330 and the direction of the electronic device. The electronic device 100 (or the processor 320 ) may determine the relative direction of the other electronic device 150 in various ways. For example, the relative direction of the other electronic device 150 may be determined in various ways such as time difference of arrival (TDOA) or frequency difference of arrival (FDOA), and the type of a program or algorithm for determining the direction of a received signal includes: no limits. Alternatively, the electronic device 100 may determine the relative direction of the other electronic device 150 based on the phase of the received communication signal.

The processor 320 may control the antenna 310 based on the location of the other electronic device 150 to form an RF wave toward the location of the other electronic device 150 . In various embodiments, the processor 320 may store correlation information between the magnitude of at least one of current or voltage input to each of the plurality of cells 411 to 426 stored in the memory 330 and the RF wave forming condition. Using this, the magnitude of at least one of a current or a voltage input to each of the plurality of cells 411 to 426 of the cell array 312 may be determined.

The processor 320 may identify another electronic device 150 by using information in the communication signal 359 . The communication signal 359 may include a unique identifier or a unique address of another electronic device. The communication circuit 340 may process the communication signal 359 to provide information to the processor 320 . Communication circuit 340 and communication antennas 341, 342, 343, WiFi (wireless fidelity), Bluetooth (Bluetooth), Zig-bee (Zig-bee) and BLE (Bluetooth Low Energy) can be manufactured based on various communication methods, such as, There is no limitation on the type of communication method. Meanwhile, the communication signal 359 may include rated power information of the other electronic device 150 , and the processor 320 is based on at least one of a unique identifier, a unique address, and rated power information of the other electronic device 150 . to determine whether to charge the other electronic device 150 . The processor 320 may include one or more of a central processing unit (CPU), an application processor (AP), or a communication processor (CP), and a microcontroller It may be implemented as a micro controller unit, a mini computer, or the like.

In addition, the communication signal 359 includes information related to a process in which the electronic device 100 identifies another electronic device 150 , a process in which power transmission is permitted to the other electronic device 150 , and received power to the other electronic device 150 . It may also be used in a process of requesting , and a process of receiving received power related information from another electronic device 150 . That is, the communication signal 359 may be used in a subscription, command, or request process between the electronic device 100 and the other electronic device 150 . The communication signal 359 may include information sensed by the other electronic device 150 (eg, motion sensing information such as acceleration sensing information or rotation sensing information, information related to the magnitude of power such as voltage or current, etc.). have.

Meanwhile, the processor 320 may control the cell array 312 to form the RF wave 311 toward the determined position of the other electronic device 150 . The RF wave 313 passing through the cell array 312 may be beam-formed toward another electronic device 150 . In FIG. 4A , a process in which the electronic device 100 performs beamforming is described, but this is merely exemplary, and the electronic device 100 may perform beam spreading or may form a circularly polarized wave. have. The memory 330 may store association information between an RF wave forming condition corresponding to various RF wave shapes and a magnitude of at least one of a current or a voltage input for each cell. The processor 320 may adjust the magnitude of at least one of current or voltage input to each of the plurality of cells 411 to 426 based on the associated information, and accordingly, the RF wave ( 313) may have various shapes such as a beam forming shape, a beam spreading shape, or a circular polarization shape.

The antenna 351 for power reception is not limited as long as it is an antenna capable of receiving an RF wave. In addition, the antenna 351 for power reception may also be implemented in the form of an array including a plurality of antennas. AC power received from the power reception antenna 351 may be rectified into DC power by the rectifier 352 . The converter 353 may convert DC power into a required voltage and provide it to the charger 354 . The charger 354 may charge a battery (not shown). Meanwhile, although not shown, the converter 353 may provide the converted power to a power management integrated circuit (PMIC) (not shown), and the PMIC (not shown) provides power to various hardware of the other electronic device 150 . may also provide

Meanwhile, the processor 355 may monitor the voltage of the output terminal of the rectifier 352 . For example, a voltmeter connected to the output terminal of the rectifier 352 may be further included in another electronic device 150 , and the processor 355 receives a voltage value from the voltmeter to monitor the voltage of the output terminal of the rectifier 352 . can The processor 355 may provide information including the voltage value of the output terminal of the rectifier 352 to the communication circuit 357 . The charger, converter, and PMIC may be implemented with different hardware, but at least two elements may be integrated into one piece of hardware. Meanwhile, the voltmeter may be implemented in various forms, such as an electro dynamic instrument voltmeter, an electrostatic voltmeter, and a digital voltmeter, and there is no limitation on the type. The communication circuit 357 may transmit a communication signal including received power related information using the communication antenna 358 . The received power related information may be, for example, information related to the magnitude of the received power, such as a voltage at the output terminal of the rectifier 352 , and may include a current of the output terminal of the rectifier 352 . In this case, it will be readily understood by those skilled in the art that an ammeter capable of measuring the current of the output terminal of the rectifier 352 may be further included in the other electronic device 150 . The ammeter may be implemented in various forms such as a DC ammeter, an AC ammeter, and a digital ammeter, and there is no limitation on the type. In addition, the position for measuring the received power related information is not limited to any point of the other electronic device 150 as well as the output terminal or input terminal of the rectifier 352 . Alternatively, the processor 355 may transmit sensing information of various other electronic devices 150 by including it in the communication signal 359 . In addition, as described above, the processor 355 may transmit the communication signal 359 including identification information of the other electronic device 150 . The memory 356 may store a program or algorithm capable of controlling various hardware of the other electronic device 150 .

In another embodiment, another electronic device 150 may communicate with the electronic device 100 using the RF wave 313 . In this case, the electronic device 100 may transmit a communication signal by modulating the baseband signal and using the RF wave 313 as a carrier wave. The electronic device 100 may further include an additional communication circuit capable of modulating a baseband signal. The electronic device 100 may apply the modulated signal to the antenna 310 , and the RF wave 311 generated by the antenna 310 may pass through the cell array 312 . The RF wave 313 beam-formed through the cell array 312 may be transmitted to another electronic device 150 . The other electronic device 150 may include at least one communication circuit that processes a carrier wave of a corresponding frequency, and may obtain a baseband signal by processing the RF wave 313 .

In various embodiments, the electronic device 100 may receive a reflected wave of the formed RF wave 313 . The electronic device 100 may analyze a characteristic (eg, at least one of a phase and an amplitude) of the reflected wave and operate according to the analysis result.

3B is a block diagram illustrating a block diagram of an electronic device and another electronic device according to various embodiments of the present disclosure; The embodiment of Figure 3b will be described in more detail with reference to Figure 4b. 4B is a diagram for describing a cell array of an electronic device according to various embodiments of the present disclosure;

Referring to FIG. 3B , unlike the embodiment of FIG. 3A , the cell array 312 may form an RF wave 316 . Unlike FIG. 3A , the electronic device 100 of FIG. 3B may not include an antenna (eg, the antenna 310 of FIG. 3A ) for independent RF wave formation from the cell array 312 . As shown in FIG. 4B , the power source 301 may be branched into a plurality of paths and connected to each of the plurality of cells 411 to 426 . Amplifiers 461 to 463 may be connected between the power source 301 and each of the plurality of cells 411 to 426 . Each of the amplifiers 461 to 463 may amplify an electrical signal output from the power source 301 and transmit it to each of the plurality of cells 411 to 426 . In various embodiments, there may be a plurality of power sources 301 . Each of the plurality of cells 411 to 426 may form a sub-RF wave using the received electrical signal. Each of the plurality of cells 411 to 426 may have a phase characteristic according to the magnitude of the current of the received electrical signal. For example, the processor 320 may control to apply a current of a first magnitude to the first cell 411 and apply a current of a second magnitude to the second cell 412 . In this case, the first cell 411 may have a phase characteristic that forms a sub-RF wave delayed by a first phase degree, and the second cell 412 forms a sub-RF wave delayed by a second phase degree. It may have a phase characteristic. Each of the plurality of cells 411 to 426 may have a meta-material structure in which the degree of phase adjustment of the RF wave is changed as the magnitude of the input current is changed. The memory 330 may store correlation information between the magnitude of the current input to the cell and the degree of phase adjustment of the RF wave to be formed. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the current input to each of the plurality of cells 411 to 426 by using the related information. In another embodiment, the memory 330 may store association information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of an input current for each cell. The processor 320 may adjust the magnitude of the current input to each of the plurality of cells 411 to 426 in response to at least one of the checked operation mode and the direction or distance of the RF wave.

In various embodiments, each of the plurality of cells 411 to 426 may have a meta-material structure in which the degree of phase adjustment of the formed RF wave is changed as the magnitude of the input voltage is changed. For example, the processor 310 may apply a voltage of a first magnitude to the first cell 411 and apply a voltage of a second magnitude to the second cell 412 . In this case, the first cell 411 may have a phase characteristic that forms a sub-RF wave delayed by a first phase degree, and the second cell 412 forms a sub-RF wave delayed by a second phase degree. It may have a phase characteristic. The memory 330 may store correlation information between the magnitude of the voltage input to the cell and the degree of phase adjustment of the RF wave passing therethrough. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the voltage input to each of the plurality of cells 411 to 426 by using the association information. In another embodiment, the memory 330 may store association information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of a voltage input for each cell. The processor 320 may adjust the magnitude of the voltage input to each of the plurality of cells 411 to 426 in response to at least one of the checked operation mode and the direction or distance of the RF wave.

The processor 320 according to various embodiments increases the amplification gain of at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal to each of the plurality of cells 411 to 426, and the amplification gain of at least one of the amplifiers 461 to 463. By changing it, it can also be adjusted.

5 is a block diagram illustrating a block diagram of an electronic device and another electronic device according to various embodiments of the present disclosure; The embodiment of FIG. 5 will be described in more detail with reference to FIG. 6 . 6 is a diagram for describing a cell array of an electronic device according to various embodiments of the present disclosure;

Referring to FIG. 5 , unlike the embodiment of FIG. 3A , a plurality of antennas 501 , 502 , and 503 may be included. Each of the plurality of antennas 501 , 502 , and 503 may form sub-RF waves 511 , 512 , and 513 . As shown in FIG. 6 , each of the sub RF waves 511 , 512 , and 513 may be incident on each of the first cell 411 , the second cell 412 , and the third cell 413 . Each of the first cell 411 , the second cell 412 , and the third cell 413 may have a phase characteristic that is changed according to a change in the magnitude of the input sub-RF wave. For example, when the sub RF wave 511 of the first magnitude is incident on the first cell 411 , the first cell 411 delays the sub RF wave 511 by a first phase characteristic. can have When the sub-RF wave 512 of the second magnitude is incident on the second cell 412, the second cell 412 may have a phase characteristic of delaying the sub-RF wave 512 by a second phase. . When the sub RF wave 513 of the third magnitude is incident on the third cell 413 , the third cell 413 may have a phase characteristic of delaying the sub RF wave 513 by a third phase. . The processor 320 may adjust the size of the sub RF waves 511 , 512 , and 513 formed by each of the antennas 551 , 502 , and 503 .

For example, the processor 320 applies a current of a first magnitude to the first antenna 501 , applies a current of a second magnitude to the second antenna 502 , and applies a current of a second magnitude to the third antenna 503 . It can be controlled to apply a current of 3 magnitudes. In this case, the first antenna 501 forms a sub RF wave 511 of a first size, the second antenna 502 forms a sub RF wave 512 of a second size, and the third antenna 503 ) may form a sub RF wave 513 of a third size. Each of the plurality of cells 411 to 426 may have a metamaterial structure in which the degree of phase adjustment of the formed RF wave is changed as the magnitude of the incident RF wave is changed. The memory 330 may store correlation information between the magnitude of the current input to the antennas 501 , 502 , and 503 and the degree of phase adjustment of the RF wave to be formed. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the current input to each of the antennas 501 , 502 , and 503 by using the associated information. In another embodiment, the memory 330 may store correlation information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of an input current for each antenna. The processor 320 may adjust the magnitude of the current input to each of the antennas 501 , 502 , and 503 in response to at least one of the checked operation mode and the direction or distance of the RF wave.

In various embodiments, the processor 310 applies a voltage of a first magnitude to the first antenna 501 , a voltage of a second magnitude to the second antenna 502 , and a voltage of a second magnitude to the third antenna 503 . A voltage of a third magnitude may be applied. In this case, the first antenna 501 forms a sub RF wave 511 of a first size, the second antenna 502 forms a sub RF wave 512 of a second size, and the third antenna 503 ) may form a sub RF wave 513 of a third size. The memory 330 may store correlation information between the magnitude of the voltage input to the antenna and the degree of phase adjustment of the RF wave passing therethrough. The processor 320 may determine the degree of phase adjustment of each of the plurality of cells 411 to 426 corresponding to the location of the other electronic device 150 . The processor 320 may adjust the magnitude of the voltage input to each of the antennas 501 , 502 , and 503 by using the association information. In another embodiment, the memory 330 may store correlation information between an RF wave forming condition (eg, an RF wave forming direction, an RF wave forming distance, or an operation mode) and a magnitude of a voltage input for each antenna. The processor 320 may adjust the magnitude of the voltage input to each of the antennas 501 , 502 , and 503 in response to at least one of the checked operation mode and the direction or distance of the RF wave. For example, the processor 320 may adjust the amplification gain of at least one of the amplifiers 601, 602, and 603 as in FIG. 6, thereby adjusting at least one of the magnitude of the current input to each of the antennas 501, 502, and 503 or the magnitude of the voltage. have.

As described above, since each of the first cell 411 , the second cell 412 , and the third cell 413 has a different degree of phase adjustment according to the magnitude of the incident sub-RF wave, as in FIG. 6 , , a beam-formed RF wave 521 may be formed.

7 is a diagram of a cell according to various embodiments.

Referring to FIG. 7 , a first conductor 711 and a second conductor 712 may be positioned on the dielectric 700 . In various embodiments, the first conductor 711 and the second conductor 712 may have a curved shape. When a current is applied to the first conductor 711 , a current applied in the opposite direction to the current applied to the first conductor 711 may flow through the second conductor 712 . The phase constant of the cell may be changed according to the magnitude of the current flowing through the first conductor 711 or the second conductor 712 . Accordingly, as shown in FIGS. 3A, 3B, 4A, and 4B, the electronic device 100 adjusts at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal input to the cells 411 to 426. Control of the RF wave 313 passing through the array 312 or the RF wave 316 formed from the cell array 312 may be performed. For example, an H-field 721 in a first direction of the z-axis or an H-field 722 in a second direction of the z-axis opposite to the first direction may be applied to the cell. The phase constant of the cell may be changed according to the size of the H-field. For example, the E-fields 731 and 733 in the first direction of the y-axis or the E-fields 732 and 734 in the second direction of the y-axis opposite to the first direction may be applied to the cell. The phase constant of the cell may be changed according to the size of the E-field. Accordingly, as shown in FIGS. 5 and 6 , the electronic device 100 controls the RF wave 521 passing through the cell array 312 by adjusting the size of the sub RF wave formed from the plurality of antennas 501 , 502 , and 503 . can be performed.

8 is a graph illustrating a relationship between a phase characteristic and a resonant frequency of a metamaterial structure according to various embodiments of the present disclosure;

As shown in FIG. 8 , as the resonant frequency ω of the metamaterial structure is changed, the phase constant β of the metamaterial structure may be changed. The phase constant may indicate a degree to which a phase of an RF wave passing through the meta-material structure is delayed, or a degree to which a phase of an RF wave formed from the meta-material structure is delayed. According to various embodiments, the electronic device 100 adjusts the resonant frequency of each of the cells including the meta-material structure, so that the RF wave passing through the cell array or the RF wave formed from the cell array, the formation direction, the formation distance, Or at least one of the shapes may be adjusted. Meanwhile, as in FIG. 8, two frequencies (eg, ω1, ω2) having the same phase (eg, φ) may exist, so that even if the cell has a relatively small size, it is possible to obtain a characteristic of a relatively low frequency band may be

9 is a diagram of a cell array according to various embodiments.

As shown in FIG. 9 , a plurality of meta-material structures 901 to 916 as shown in FIG. 7 may be disposed on the dielectric 900 . In the dielectric 900 , power feeding units 942 and 943 for providing an electrical signal from the power source 941 to at least one of the meta material structures 901 to 916 may be disposed. In the dielectric 900, switches 921 to 936 for selectively providing electrical signals from the power feeding units 942 and 943 to the meta material structures 901 to 916, respectively, may be disposed. The electronic device 100 may selectively provide an electrical signal to each of the meta-material structures 901 to 916 by controlling the on/off states of the switches 921 to 936 . The electronic device 100, based on at least one of a formation direction, a formation distance, or a shape of an RF wave to be formed, a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the metamaterial structures 901 to 916 at least one of them can be controlled.

10 is a block diagram of an electronic device according to various embodiments of the present disclosure;

The processor 320 according to various embodiments may determine, for example, a position at which beamforming is desired. The processor 320 may determine the degree of phase adjustment of each cell corresponding to the corresponding position. The processor 320 may determine at least one of the magnitude of the applied current or the magnitude of the applied voltage, which corresponds to the degree of phase adjustment of each cell. The processor 320 may determine, for example, at least one of the magnitude of the applied current or the magnitude of the applied voltage, with reference to the related information stored in advance. The processor 320 may transmit the confirmed digital value to the digital to analog converter (DAC) 1010 through, for example, an inter integrated circuit (I2C) or a serial peripheral interface (SPI). The DAC 1010 may convert the received digital value into an analog electrical signal and output it. The cell 1020 may have a phase characteristic changed according to a received electrical signal. Although not shown, the DAC 1010 may provide an electrical signal to each of a plurality of antennas, and a phase characteristic of the cell 1020 may be changed according to the intensity of an RF wave generated from each of the plurality of antennas. .

11 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 may receive a wireless charging request in operation 1101 . For example, the electronic device 100 may receive a wireless charging request from another electronic device. Alternatively, the electronic device 100 may receive a command to charge another electronic device from the user. In operation 1103 , the electronic device 100 may determine the location of another electronic device through various sensors as described above. In operation 1105 , the electronic device 100 may adjust a phase characteristic for each cell in response to a location of another electronic device. For example, the electronic device 100 may adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of a plurality of cells of the cell array to enable beamforming at a specific point. For example, the electronic device 100 controls the current of an electrical signal input to the antennas that form each of the sub RF waves incident on each of a plurality of cells of the cell array so that beamforming can be performed at a specific point. At least one of the magnitude or the magnitude of the voltage may be adjusted. In operation 1107 , the electronic device 100 may form a beam-formed RF wave. Accordingly, for example, a beam-formed RF wave as shown in FIG. 1 may be formed.

12A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 may receive a beam spreading request in operation 1201 . For example, the electronic device 100 may receive a face recognition request and may perform beam spreading in response thereto. In operation 1203 , the electronic device 100 may adjust a phase characteristic for each cell for beam spreading. For example, the electronic device 100 may adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of a plurality of cells of the cell array so that beam spreading can be performed with respect to a specific area. have. For example, the electronic device 100 transmits an electrical signal input to antennas that form sub-RF waves that are incident on each of a plurality of cells of a cell array so that beam spreading can be performed on a specific area. At least one of the magnitude of the current and the magnitude of the voltage may be adjusted. In operation 1207 , the electronic device 100 may form a beam-spreading RF wave. For example, referring to FIG. 12B , the electronic device 100 may form a beam-spreading RF wave 1211 through the cell array 1210 .

13A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 may receive a request for forming a circular polarization wave in operation 1301 . For example, the electronic device 100 may receive a skin condition analysis request, and may perform circular polarization formation in response thereto. In operation 1303 , the electronic device 100 may adjust a phase characteristic for each cell for forming a circularly polarized wave. For example, the electronic device 100 may adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of a plurality of cells of the cell array to form a circularly polarized wave. For example, in order to form a circularly polarized wave, the electronic device 100 may include a magnitude of a current or a magnitude of a voltage of an electrical signal input to antennas that form each of sub RF waves incident on each of a plurality of cells of the cell array. At least one of them can be adjusted. In operation 1305 , the electronic device 100 may form an RF wave. For example, the electronic device 100 may form a circularly polarized wave 1311 as shown in FIG. 13B . The electronic device 100 controls the phase of the RF wave from the first cell 1331 of the cell array 1310 to be delayed by 0 degrees 1331 , and adjusts the phase of the RF wave from the second cell 1332 . Controlled to be delayed by 90 degrees (1332), the phase of the RF wave from the third cell 1333 is controlled to be delayed by 180 degrees (1333), and the phase of the RF wave from the fourth cell 1334 is controlled to be delayed by 270 degrees By controlling the delay by (1334), it is possible to form a circularly polarized wave (1311).

14A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 may receive a multi-frequency reception request in operation 1401 . In operation 1403, the electronic device 100 may set the resonant frequencies of the plurality of cells to be different. For example, the electronic device 100 may differently set at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal input to each of the plurality of cells. Accordingly, as shown in FIG. 14B , the resonance frequencies f0, f1, and fn-1 of the plurality of cells 1401, 1402, and 1403 may be set differently. In operation 1405, the electronic device 100 may receive and process the received wave. Accordingly, even when the frequency of the received RF wave is not specified, the electronic device 100 may receive RF waves of various frequency bands.

15A is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, in operation 1501 , the electronic device 100 may form an RF wave having a first characteristic for a first period. In operation 1503 , the electronic device 100 may receive the reflected wave during the second period. In operation 1505, the electronic device 100 may analyze the reflected wave and operate according to the analysis result. For example, the electronic device 100 may perform beam spreading to form an RF wave with respect to the user's face. The RF wave incident to the user's face may be reflected by the face, and thus a reflected wave may be formed. The electronic device 100 may detect a characteristic of the received reflected wave, and may perform user authentication according to whether the detected characteristic corresponds to a previously stored characteristic. For example, the electronic device 100 may analyze a reflected wave with respect to an RF wave of a THz band, and thus may acquire a high-resolution, high-precision image. The electronic device 100 may acquire an image of the invisible light region. Accordingly, the electronic device 100 may acquire a high-resolution image even in a low-light environment. The electronic device 100 may perform user authentication by acquiring a high-resolution image for 3D fingerprint, iris, and facial recognition. The high-definition image technology may be provided to a user by using a high-definition image even in a foggy environment, or may be used in an electric field of a vehicle, such as performing automatic driving. High-precision imaging technology may also be used to more accurately determine a three-dimensional printing target. For example, the electronic device 100 forms an RF wave toward the user's skin, and uses the reflected wave to detect the skin condition (eg, dead skin cells in pores, trouble, dryness, disease, skin damage, etc.) can judge The electronic device 100 may analyze the epidermis, tissue, hair root, sweat gland, and skin hydration level, and may provide a skin care method corresponding thereto. Alternatively, the electronic device 100 may diagnose a skin disease according to skin information. The electronic device 100 may also perform disease self-diagnosis using big data. In various embodiments, the electronic device 100 may receive an RF wave formed from another electronic device that has passed through an object or gas. For example, another electronic device may form an RF wave toward food, medicine, cosmetics, and the atmosphere. When the RF wave is in the THz band, the RF wave may be received by the electronic device 100 through a corresponding object or gas. The electronic device 100 may analyze the characteristics of the received RF wave to determine, for example, the freshness or spoilage of foodstuffs, medicines, and cosmetics, the concentration of harmful gases in the atmosphere, the concentration of fine dust, the distribution of pests, and the like. have. When the electronic device 100 is implemented as an air purifier, a cleaning operation may be performed according to the determination result. When the electronic device 100 is implemented as a robot cleaner, a cleaning-related operation may be performed according to the determination result. For example, the electronic device 100 may form an RF wave in a refrigerator capable of storing fermented food, and the RF wave may be detected by a receiving circuit through a gas generated from the fermented food. The electronic device 100 may determine the degree of fermentation of the fermented food based at least on the reception result. For example, the electronic device 100 may be configured to transmit an RF wave to the human body, and may determine precise body shape and dimension information by analyzing the transmitted RF wave. Alternatively, the electronic device 100 may transmit an RF wave through an object to perform content analysis, 3D character analysis, symbol analysis, and the like of an invisible package. For example, the electronic device 100 may obtain various biometric information such as human blood flow, non-invasive blood sugar, heart rate, electrocardiogram, facial muscle displacement, etc. by analyzing the reflected wave, and at least based on the acquired biometric information Thus, it is possible to determine the analyzed psychological state of the user. The electronic device 100 may provide content (eg, music, art, literature, novel, etc.) corresponding to the user's psychological state or provide the user's psychological state to another user.

15B is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure;

According to various embodiments, the electronic device 100 may receive communication data in operation 1511 . For example, the electronic device 100 may perform communication with another electronic device in a THz band. In operation 1513 , the electronic device 100 modulates communication data to form an RF wave having a first characteristic. Another electronic device may receive the RF wave of the first characteristic and demodulate it to obtain communication data. For example, when the electronic device 100 performs communication in the THz band, high-speed communication having a data rate of 200 Gbps may be performed. In this case, the bandwidth may also be 60 GHz or more, and the size of the array may be 5 X 5 mm ² or less, and small production may be possible. Accordingly, the electronic device 100 such as a wireless TV may receive large-capacity data for high quality. In addition, relatively high-capacity information may be transmitted/received between various electronic devices in a home network environment. According to various embodiments, a mobile terminal device that forms an RF wave in the THz band, measures the freshness and perishability of a specific object, determines product information (eg, barcode information), performs communication with other electronic devices, and , it is also possible to perform short-distance communication for payment. In particular, as the electronic device 100 including one RF wave forming and processing module performs the various operations described above, it may be possible to manufacture a small size. According to various embodiments, the electronic device 100 may be implemented in the form of a robot or a drone. The electronic device 100 may obtain a high-precision image of the surrounding environment and perform topographic analysis, obstacle position determination, path analysis, and the like using the obtained high-precision image. Alternatively, the electronic device 100 may analyze the user's biometric information or a behavior pattern and operate in response thereto. In the recognition process for biometric information or behavior patterns, a classification algorithm by machine learning may be used.

16 is a diagram of an electronic device according to various embodiments of the present disclosure;

As shown in FIG. 16 , the electronic device 1600 may be implemented as a mobile terminal device such as a smart phone. The electronic device 1600 may include a cell array including a meta-material structure, and thus a relatively small mobile terminal device also forms a beam-spreaded RF wave 1601 or a beam-formed RF wave 1602 . You may.

As used herein, the term “module” includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit or a part of one or more functions. For example, the module may be configured as an application-specific integrated circuit (ASIC).

Various embodiments of the present document may be implemented as software including instructions stored in a machine-readable storage medium (eg, a computer). The device is a device capable of calling a command stored from a storage medium and operating according to the called command, and may include the electronic device according to the disclosed embodiments. When the instruction is executed by the processor, the processor may perform a function corresponding to the instruction by using other components directly or under the control of the processor. Instructions may include code generated or executed by a compiler or interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' means that the storage medium does not include a signal and is tangible, and does not distinguish that data is semi-permanently or temporarily stored in the storage medium.

According to an exemplary embodiment, the method according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product may be distributed in the form of a machine-readable storage medium (eg, compact disc read only memory (CD-ROM)) or online through an application store (eg, Play Store™). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, a storage medium storing instructions may be provided. The instructions are configured to cause the at least one circuit to perform at least one operation when executed by the at least one circuit, wherein the at least one operation includes determining a condition for forming an RF wave and a condition for forming the RF wave. In response, the operation may include adjusting a phase characteristic of each of the plurality of cells.

Each of the components (eg, a module or a program) according to various embodiments may be composed of a singular or a plurality of entities, and some sub-components of the aforementioned sub-components may be omitted, or other sub-components may be It may be further included in various embodiments. Alternatively or additionally, some components (eg, a module or a program) may be integrated into a single entity to perform the same or similar functions performed by each corresponding component prior to integration. According to various embodiments, operations performed by a module, program, or other component are executed sequentially, parallel, iteratively, or heuristically, or at least some operations are executed in a different order, are omitted, or other operations are added. can be

Claims (20)

In an electronic device,
power source;
a cell array including a plurality of cells; and
a plurality of antennas forming an RF wave using the power received from the power source, the plurality of antennas being disposed to correspond to each of the plurality of cells; and
processor
including,
The processor is
Determining the conditions for forming the RF wave,
is set to adjust the phase characteristics of each of the plurality of cells in response to the formation condition of the RF wave,
In order to adjust the phase characteristics of each of the plurality of cells, the processor,
The electronic device is configured to adjust the phase characteristic of each of the plurality of cells by adjusting at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the plurality of antennas. delete delete delete delete delete The method of claim 1,
The processor is
Determining to beam-form the RF wave with respect to a first point,
Determining the degree of adjustment of the phase characteristic in each of the plurality of cells, corresponding to the first point,
The electronic device is configured to adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells. The method of claim 1,
The processor is
determining to beam-spread the RF wave with respect to a first area;
determining the degree of adjustment of the phase characteristic in each of the plurality of cells corresponding to the first area;
The electronic device is configured to adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells. The method of claim 1,
The processor is
Judging to form a circular polarization,
Determining the degree of adjustment of the phase characteristic in each of the plurality of cells, corresponding to the circular polarization,
The electronic device is configured to adjust at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells. delete delete delete delete delete A method of operating an electronic device including a plurality of cells, the method comprising:
determining a condition for forming an RF wave; and
In response to the formation condition of the RF wave, comprising the operation of adjusting the phase characteristics of each of the plurality of cells,
The electronic device includes a plurality of antennas, each of which is arranged to correspond to each of the plurality of cells,
The adjusting the phase characteristic of each of the plurality of cells may include adjusting at least one of a magnitude of a current or a magnitude of a voltage of an electrical signal input to each of the plurality of antennas, thereby increasing the phase characteristic of each of the plurality of cells. An operation method of an electronic device that is an operation of adjusting. delete 16. The method of claim 15,
The operation of adjusting the phase characteristics of each of the plurality of cells comprises:
determining whether to beamform the RF wave with respect to a first point;
determining an adjustment degree of the phase characteristic in each of the plurality of cells, corresponding to the first point; and
Adjusting at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells
A method of operating an electronic device comprising a. 16. The method of claim 15,
The operation of adjusting the phase characteristics of each of the plurality of cells comprises:
determining whether to beam-spread the RF wave with respect to a first area;
determining an adjustment degree of the phase characteristic in each of the plurality of cells corresponding to the first area; and
Adjusting at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells
A method of operating an electronic device comprising a. 16. The method of claim 15,
The operation of adjusting the phase characteristics of each of the plurality of cells comprises:
determining to form a circularly polarized wave;
determining an adjustment degree of the phase characteristic in each of the plurality of cells corresponding to the circular polarization; and
Adjusting at least one of the magnitude of the current or the magnitude of the voltage of the electrical signal input to each of the plurality of antennas in response to the determined degree of adjustment in each of the plurality of cells
A method of operating an electronic device comprising a. delete

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