KR20220122074A - Electronic apparatus and the method thereof - Google Patents

Abstract

The purpose of the present invention is to provide an electronic device that provides a better antenna communication environment and a control method thereof. The electronic device according to one embodiment of the present disclosure comprises: an antenna module capable of receiving a signal in a first frequency band; an interface including a connection terminal to which an external antenna capable of receiving a signal in at least a part of the first frequency band and a signal in a second frequency band different from the first frequency band is connected; a first communication module processing the signal in the first frequency band; a second communication module processing the signal in the second frequency band; and a processor configured to identify whether or not the external antenna is connected when a receive sensitivity of the signal in the first frequency band through the antenna module is lower than a predefined level, receive the signal in the first frequency band based on the connection of the external antenna to the connection terminal, and control a communication path so that the received signal in the first frequency band is transmitted to the first communication module.

Description

Electronic device and its control method

The present disclosure relates to an electronic device for receiving a signal through an antenna and a method for controlling the same.

An electronic device supporting wireless communication may have an antenna module mounted therein to detect a wireless signal or radiate a wireless signal.

When a body, such as a hand, touches a portion on which the antenna module of the electronic device is mounted, the performance of the antenna module may be deteriorated, such as a decrease in reception sensitivity of a radio signal. In addition, when transmission and reception of a wireless signal with a base station or other external device is unstable or a signal cannot be received, there is a problem in that it is difficult to move to an area where it can be easily received.

On the other hand, in the case of an electronic device such as a smartphone, an antenna module for receiving a DMB (Digital Multi Media) signal or an FM radio signal among wireless signals has been installed, but recently, the demand for weight reduction of smart phones and the demand for receiving DMB signals and radio signals For reasons such as reduction, the corresponding antenna module was excluded. However, alternative technologies such as using earphones as external antennas have been developed to provide DMB broadcasting or radio broadcasting services.

An object of the present disclosure is to provide an electronic device that provides a better antenna communication environment and a control method thereof.

An electronic device according to an embodiment of the present disclosure, comprising: an antenna module capable of receiving a signal in a first frequency band; an interface including a connection terminal to which an external antenna capable of receiving a signal of at least a partial band of the first frequency band and a signal of a second frequency band different from the first frequency band is connected; a first communication module for processing the signal of the first frequency band; a second communication module for processing the signal of the second frequency band; and when the reception sensitivity of the signal of the first frequency band through the antenna module is lower than a predefined level, it is identified whether the external antenna is connected, and based on that the external antenna is connected to the connection terminal, the second and a processor for receiving a signal of one frequency band through the external antenna and controlling a communication path to transmit the received signal of the first frequency band to the first communication module.

Further comprising a switch for connecting any one of the connection terminal and the first communication module or the second communication module, the processor, based on receiving the signal of the first frequency band through the external antenna, The switch may be controlled to transmit the signal of the first frequency band to the first communication module.

Further comprising a diplexer for connecting the connection terminal and the first communication module and the second communication module, the processor, the signal of the first frequency band received through the external antenna is the first communication module Thus, the diplexer may be controlled to transmit the signal of the second frequency band received through the external antenna to the second communication module.

The signal of the first frequency band may include a cellular signal, and the first communication module may include a cellular communication circuit.

The external antenna may include a first external antenna for receiving a signal of the second frequency band lower than the first frequency band.

The signal of the second frequency band may include an FM radio signal, and the second communication module may include an FM communication circuit.

The external antenna may include a second external antenna for receiving a signal of the second frequency band higher than the first frequency band.

The signal of the second frequency band may include a GPS signal, and the second communication module may include a GPS communication circuit.

The predefined level is a first level, and the processor receives the signal of the first frequency band through the external antenna when the reception sensitivity of the signal of the first frequency band through the external antenna is higher than the second level can do.

and a tuner capable of adjusting a reception frequency within a reception frequency band of the external antenna, wherein the processor has a reception sensitivity of a signal of the first frequency band through the antenna module is lower than the predefined level, and the external antenna Based on the connection to the connection terminal, the tuner may be controlled to increase the reception sensitivity of the signal of the first frequency band.

The first frequency band includes a plurality of different sub-frequency bands, and the processor is configured to receive, through the external antenna, a signal of a sub-frequency band close to the second frequency band among the plurality of sub-frequency bands. can control

In the control method of an electronic device according to an embodiment of the present disclosure, when the reception sensitivity of the signal of the first frequency band through the antenna module capable of receiving the signal of the first frequency band is lower than a predefined level, identifying whether an external antenna capable of receiving a signal of at least a partial band of the first frequency band and a signal of a second frequency band different from the first frequency band is connected; receiving a signal of the first frequency band through the external antenna based on the connection of the external antenna to the connection terminal; and controlling a communication path to transmit the received signal of the first frequency band to a first communication module.

In the controlling of the communication path, the connection terminal and the second communication module transmit the signal of the first frequency band to the first communication module based on the reception of the signal of the first frequency band through the external antenna. It may include controlling a switch connecting any one of the first communication module or the second communication module.

In the controlling of the communication path, the signal of the first frequency band received through the external antenna is the first communication module, and the signal of the second frequency band received through the external antenna is the second communication It may include controlling a diplexer connecting the connection terminal and the first communication module and the second communication module to transmit to the module.

The signal of the first frequency band may include a cellular signal, and the first communication module may include a cellular communication circuit.

The external antenna may include a first external antenna for receiving a signal of the second frequency band lower than the first frequency band.

The external antenna may include a second external antenna for receiving a signal of the second frequency band higher than the first frequency band.

The predefined level is a first level, and the step of receiving the signal of the first frequency band through the external antenna may include when the reception sensitivity of the signal of the first frequency band through the external antenna is higher than the second level. It may include receiving the signal of the first frequency band through the external antenna.

The reception sensitivity of the signal of the first frequency band through the antenna module is lower than the predefined level, and based on that the external antenna is connected to the connection terminal, to increase the reception sensitivity of the signal of the first frequency band The method may further include controlling the tuner capable of adjusting a reception frequency within a reception frequency band of the external antenna.

In the recording medium storing a computer program including a computer readable code for performing a control method of an electronic device, the control method of the electronic device includes an antenna module capable of receiving a signal of a first frequency band When the reception sensitivity of the signal of the first frequency band through identifying whether an external antenna is connected; receiving a signal of the first frequency band through the external antenna based on the connection of the external antenna to the connection terminal; and controlling the communication path to transmit the received signal of the first frequency band to the first communication module.

According to an embodiment of the present disclosure, when the performance of the antenna module is insufficient or the performance degradation due to the user's grip of the electronic device occurs, the performance degradation can be improved by receiving a signal through an external antenna. An electronic device may be used in an antenna environment.

In addition, even when the service is impossible to receive or when the signal reception sensitivity is low, it is possible to secure additional coverage compared to the antenna module of the electronic device, and it is possible to secure additional coverage by locating the external antenna at a high place, thereby reducing the area where the service cannot be received. can

1 is a block diagram illustrating a configuration of an electronic device according to an embodiment of the present disclosure.
2 is a block diagram of a wireless communication module, a power management module, and an antenna module of an electronic device according to various embodiments of the present disclosure;
3 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.
4 is a diagram illustrating a frequency band according to an embodiment of the present disclosure.
5 is a diagram illustrating an operation of an electronic device according to an embodiment of the present disclosure.
6 is a diagram illustrating a circuit diagram constituting an electronic device according to an embodiment of the present disclosure.
7 is a diagram illustrating a circuit diagram constituting an electronic device according to another exemplary embodiment of the present disclosure.
8 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.
9 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.
10 is a diagram illustrating a graph illustrating reception sensitivity of an electronic device according to an embodiment of the present disclosure.

The electronic device according to various embodiments disclosed in this document may be a device of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A , B, or C," each of which may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

According to various embodiments of the present document, one or more instructions stored in a storage medium (eg, internal memory 221 or external memory 222) readable by a machine (eg, electronic device 100) may be implemented as software (eg, the program 30) including For example, the processor (eg, the processor 10 ) of the device (eg, the electronic device 100 ) may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided in a computer program product (computer program product). Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable 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, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.

1 is a block diagram illustrating a configuration of an electronic device according to an embodiment of the present disclosure.

1 is a block diagram of an electronic device 100 in a network environment 200 according to various embodiments of the present disclosure. Referring to FIG. 1 , in a network environment 200 , the electronic device 100 communicates with the electronic device 102 through a first network 98 (eg, a short-range wireless communication network) or a second network 99 . It may communicate with at least one of the electronic device 103 and the server 104 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 100 may communicate with the electronic device 103 through the server 104 . According to an embodiment, the electronic device 100 includes a processor 10 , a memory 20 , an input module 40 , a display module 50 , an audio module 60 , a sound output module 61 , and an interface 70 . ), connection terminal 71, camera module 73, sensor module 80, haptic module 81, power management module 85, battery 86, communication module 90, subscriber identification module 93 , or an antenna module 94 . In some embodiments, at least one of these components (eg, the connection terminal 71 ) may be omitted or one or more other components may be added to the electronic device 100 . In some embodiments, some of these components (eg, sensor module 80 , camera module 73 , or antenna module 94 ) are integrated into one component (eg, display module 50 ). can be

The processor 10, for example, executes software (eg, the program 30) to execute at least one other component (eg, a hardware or software component) of the electronic device 100 connected to the processor 10 . It can control and perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 10 converts commands or data received from other components (eg, the sensor module 80 or the communication module 90 ) to the volatile memory 21 . may be stored in the volatile memory 21 , and may process commands or data stored in the volatile memory 21 , and store the result data in the non-volatile memory 22 . According to an embodiment, the processor 10 includes a main processor 11 (eg, a central processing unit or an application processor) or a secondary processor 12 (eg, a graphics processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 100 includes the main processor 11 and the sub-processor 12 , the sub-processor 12 uses less power than the main processor 11 or is set to be specialized for a specified function. can The auxiliary processor 12 may be implemented separately from or as part of the main processor 11 .

The coprocessor 12 may be, for example, on behalf of the main processor 11 while the main processor 11 is in an inactive (eg, sleep) state, or the main processor 11 is active (eg, executing an application). ), together with the main processor 11, at least one of the components of the electronic device 100 (eg, the display module 50, the sensor module 80, or the communication module 90) It is possible to control at least some of the related functions or states. According to one embodiment, the coprocessor 12 (eg, image signal processor or communication processor) may be implemented as part of another functionally related component (eg, camera module 73 or communication module 90 ). have. According to an embodiment, the auxiliary processor 12 (eg, a neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 100 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 104 ). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 20 may store various data used by at least one component (eg, the processor 10 or the sensor module 80 ) of the electronic device 100 . The data may include, for example, input data or output data for software (eg, the program 30 ) and instructions related thereto. The memory 20 may include a volatile memory 21 or a non-volatile memory 22 .

The program 30 may be stored as software in the memory 20 , and may include, for example, an operating system 31 , middleware 32 , or an application 33 .

The input module 40 may receive a command or data to be used in a component (eg, the processor 10 ) of the electronic device 100 from the outside (eg, a user) of the electronic device 100 . The input module 40 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The display module 50 may visually provide information to the outside (eg, a user) of the electronic device 100 . The display module 50 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 50 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 60 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 60 acquires a sound through the input module 40 , or an external electronic device (eg, a sound output module 61 ) connected directly or wirelessly with the electronic device 100 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sound output module 61 may output a sound signal to the outside of the electronic device 100 . The sound output module 61 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The interface 70 may support one or more designated protocols that may be used for the electronic device 100 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 70 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 71 may include a connector through which the electronic device 100 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 71 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The camera module 73 may capture still images and moving images. According to one embodiment, the camera module 73 may include one or more lenses, image sensors, image signal processors, or flashes.

The sensor module 80 detects an operating state (eg, power or temperature) of the electronic device 100 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 80 includes, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor ( For example, it may include a photoplethysmography (PPG) sensor, an electrode sensor), a temperature sensor, a humidity sensor, a location sensor (eg, GPS), or an illuminance sensor.

The haptic module 81 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 81 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The power management module 85 may manage power supplied to the electronic device 100 . According to an embodiment, the power management module 85 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 86 may supply power to at least one component of the electronic device 100 . According to one embodiment, battery 86 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 90 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 100 and an external electronic device (eg, the electronic device 102, the electronic device 103, or the server 104). It can support establishment and communication performance through the established communication channel. The communication module 90 may include one or more communication processors that operate independently of the processor 10 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 90 is a wireless communication module 91 (eg, a cellular communication module, a short-range wireless communication module such as a WiFi module and a Bluetooth module, or a global navigation satellite system (GNSS) communication module, an NFC module , RF module) or a wired communication module 92 (eg, a local area network (LAN) communication module, or a power line communication module).

The cellular communication module is configured with a cellular communication circuit, and may provide, for example, a voice call, a video call, a text service, or an Internet service through a communication network. According to an embodiment, the cellular communication module may use a subscriber identification module (eg, a SIM card) 93 to identify and authenticate the electronic device 100 within a communication network. According to an embodiment, the cellular communication module may perform at least some of the functions that the processor 10 may provide. According to an embodiment, the cellular communication module may include a communication processor (CP). According to an embodiment, at least some (eg, two or more) of a cellular communication module, a WiFi module, a Bluetooth module, a GNSS module, or an NFC module may be included in one integrated chip (IC) or an IC package. The RF module may, for example, transmit/receive a communication signal (eg, an RF signal). The RF module may include, for example, a transceiver, a power amp module (PAM), a frequency filter, a low noise amplifier (LNA), or an antenna. According to another embodiment, at least one of a cellular communication module, a WiFi module, a Bluetooth module, a GNSS module, or an NFC module may transmit/receive an RF signal through a separate RF module. The subscriber identification module 93 may include, for example, a card including a subscriber identification module or an embedded SIM, and may include unique identification information (eg, integrated circuit card identifier (ICCID)) or subscriber information (eg, IMSI). (international mobile subscriber identity)).

A corresponding communication module among these communication modules is a first network 98 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 99 (eg, legacy It may communicate with the external electronic device 103 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 91 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 93 within a communication network such as the first network 98 or the second network 99 . The electronic device 100 may be checked or authenticated.

The wireless communication module 91 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 91 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 91 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 91 may support various requirements specified in the electronic device 100 , an external electronic device (eg, the electronic device 103 ), or a network system (eg, the second network 99 ). According to an embodiment, the wireless communication module 91 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 94 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 94 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 94 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network such as the first network 98 or the second network 99 is connected from the plurality of antennas by, for example, the communication module 90 . can be selected. A signal or power may be transmitted or received between the communication module 90 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 94 .

According to various embodiments, the antenna module 94 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, underside) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 100 and the external electronic device 103 through the server 104 connected to the second network 99 . Each of the external electronic devices 102 or 103 may be the same as or different from the electronic device 100 . According to an embodiment, all or a part of operations executed in the electronic device 100 may be executed in one or more external electronic devices 102 , 103 , or 104 . For example, when the electronic device 100 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 100 performs the function or service by itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 100 . The electronic device 100 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 100 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 103 may include an Internet of things (IoT) device. The server 104 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 103 or the server 104 may be included in the second network 99 . The electronic device 100 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

FIG. 2 is a block diagram 200 of a wireless communication module 91 , a power management module 85 , and an antenna module 94 of the electronic device 100 according to various embodiments of the present disclosure. Referring to FIG. 2 , the wireless communication module 91 may include an MST communication module 911 or an NFC communication module 912 , and the power management module 85 may include a wireless charging module 851 . In this case, the antenna module 94 is connected to the MST antenna 94-1 connected to the MST communication module 911, the NFC antenna 94-2 connected to the NFC communication module 912, and the wireless charging module 851 It may include a plurality of antennas including a wireless charging antenna (94-3). For convenience of description, components overlapping those of FIG. 1 are omitted or briefly described.

The MST communication module 911 receives a signal including payment information such as control information or card information from the processor 10, and generates a magnetic signal corresponding to the received signal through the MST antenna 94-1. Thereafter, the generated magnetic signal may be transmitted to the external electronic device 102 (eg, a POS device). In order to generate the magnetic signal, according to an embodiment, the MST communication module 911 includes a switching module including one or more switches connected to the MST antenna 94-1 (not shown), and the switching module By controlling it, the direction of the voltage or current supplied to the MST antenna 94-1 may be changed according to the received signal. Changing the direction of the voltage or current enables the direction of a magnetic signal (eg, magnetic field) transmitted through the MST antenna 94-1 to change accordingly. When the magnetic signal of the state in which the direction is changed is detected by the external electronic device 102, the magnetic card corresponding to the received signal (eg, card information) is read by the card reader of the electronic device 102 ( swiped) can cause effects (eg waveforms) similar to the generated magnetic field. According to an embodiment, the payment-related information and the control signal received in the form of the magnetic signal from the electronic device 102 may be, for example, an external server 104 (eg, payment) through the second network 99 . server) can be sent.

The NFC communication module 912 obtains a signal including payment information such as control information or card information from the processor 10, and transmits the obtained signal to the external electronic device 102 through the NFC antenna 94-2. can be sent to According to an embodiment, the NFC communication module 912 may receive such a signal transmitted from the external electronic device 102 through the NFC antenna 94-2.

The wireless charging module 851 wirelessly transmits power to the external electronic device 102 (eg, a mobile phone or a wearable device) through the wireless charging antenna 94-3, or an external electronic device 102 (eg, : It can receive power wirelessly from a wireless charging device). The wireless charging module 851 may support one or more of various wireless charging methods including, for example, a magnetic resonance method or a magnetic induction method.

According to an embodiment, some of the MST antenna 94-1, the NFC antenna 94-2, or the wireless charging antenna 94-3 may share at least a portion of the radiating part with each other. For example, the radiating part of the MST antenna 94-1 may be used as the radiating part of the NFC antenna 94-2 or the wireless charging antenna 94-3, and vice versa. In this case, the antenna module 94 is the wireless communication module 91 (eg, the MST communication module 911 or the NFC communication module 912) or the power management module 85 (eg, the wireless charging module 851) of A switching circuit (not shown) set to selectively connect (eg, close) or separate (eg, open) at least a portion of the antennas 94-1, 94-2, or 94-3 according to control may be included. have. For example, when the electronic device 100 uses a wireless charging function, the NFC communication module 912 or the wireless charging module 851 controls the switching circuit to control the NFC antenna 94-2 and the wireless charging antenna ( At least a partial area of the radiating unit shared by 94-3 may be temporarily separated from the NFC antenna 94-2 and connected to the wireless charging antenna 94-3.

According to an embodiment, at least one function of the MST communication module 911, the NFC communication module 912, or the wireless charging module 851 may be controlled by an external processor (eg, the processor 10). . According to an embodiment, specified functions (eg, payment functions) of the MST communication module 911 or the NFC communication module 912 may be performed in a trusted execution environment (TEE). Trusted execution environment (TEE) according to various embodiments, for example, to be used to perform a function that requires a relatively high level of security (eg, a financial transaction, or a function related to personal information) of the memory 20 It may form an execution environment to which at least some designated areas are allocated. In this case, access to the designated area may be restricted and allowed according to, for example, a subject accessing there or an application running in the trusted execution environment.

3 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, when the reception sensitivity of the signal of the first frequency band through the antenna module 94 is lower than a predefined level (hereinafter referred to as a first level), the processor 10 performs an external antenna It can be identified whether or not the connection of (S310).

Signals (hereinafter, interpreted the same as radio signals unless otherwise noted) are used for different purposes according to frequency bands. For example, roughly, a signal for DMB broadcasting and radio reception has a frequency band of 3 MHz to 300 MHz, a cellular signal for mobile communication has a frequency band of 300 MHz to 3 GHz, and a signal for satellite communication has a frequency band of 3 GHz or higher.

An external antenna operated by being connected to the antenna module 94 or the connection terminal 71 of the electronic device 100 is designed differently depending on the frequency band of a signal to be received. Accordingly, the material, length, and connection position of the antenna may be different to receive signals of different frequency bands. For example, as compared to a cellular signal, an FM radio signal has a relatively low frequency band and thus has a long wavelength, so an antenna for receiving an FM radio signal must have a longer length than an antenna for receiving a cellular signal.

In addition, it is preferable that the antenna is designed to have a reception frequency band of a wider range than a frequency band of a signal to be received. That is, according to an embodiment of the present disclosure, the antenna module 94 may receive the signal of the first frequency band, but may not receive only the signal within the first frequency band. It is designed to receive signals within a range of frequency bands. In particular, when the external antenna is implemented as an earphone, the range of the frequency band of a signal that can be received may be variable as the length of the earphone line, the height at which the line is located, and the like change. In addition, in the case of the electronic device 100 supporting a device-to-device (D2D) function, which is a direct communication between terminals, when an earphone is used as an external antenna, communication is performed over a longer distance than when the antenna module 94 is used. It is possible.

Therefore, even antennas designed to receive signals of different frequency bands may overlap the reception frequency bands of the antennas. As the reception frequency bands of the antenna overlap, even though the antenna is designed for the purpose of receiving a specific signal, if the performance of the antenna is deteriorated, the auxiliary antenna may receive a signal of another frequency band. More details regarding the frequency band of the signal and the reception frequency band of the antenna will be described with reference to FIG. 4 .

Antenna performance can be measured and compared through reception sensitivity. The reception sensitivity refers to the strength of a signal, a signal received through an antenna is detected, a signal-to-noise ratio is calculated, and reception sensitivity can be determined based on this.

The processor 10 identifies the reception sensitivity of the signal of the first frequency band through the antenna module 94, and when the identified reception sensitivity is lower than the first level, it can be determined that the performance of the antenna module 94 is degraded. have. Accordingly, the processor 10 may identify whether the external antenna is connected in order to receive the signal of the first frequency band using the external antenna.

According to an embodiment of the present disclosure, the processor 10 may receive a signal of the first frequency band through the external antenna based on the connection of the external antenna to the connection terminal 71 ( S320 ).

According to an embodiment of the present disclosure, the external antenna is designed to receive a signal of at least a partial band of the first frequency band and a signal of a second frequency band different from the first frequency band. Accordingly, when the reception sensitivity of the antenna module 94 is low and an external antenna is connected, the signal of the first frequency band may be received through the external antenna. However, for efficient use of the external antenna, the processor 10 may receive the signal of the first frequency band through the external antenna when the reception sensitivity is higher than a predetermined level. For example, the processor 10 checks Received Signal Strength Indication (RSSI) indicating the received signal strength, and then connects a signal of a frequency band having a good RSSI among frequency bands receivable by an external antenna, or uses a tuner or the like to adjust the impedance of the antenna. Through matching, the performance of the antenna can be improved. In this regard, more detailed information will be described in detail with reference to FIGS. 6, 8 and 9 .

According to an embodiment of the present disclosure, the processor 10 may control the communication path to transmit the received signal of the first frequency band to the first communication module 910 ( S330 ).

According to an embodiment of the present disclosure, the communication module 90 for processing the signal received through the antenna of the electronic device 100 includes, for example, a first processing signal of the first frequency band 410 . It includes a communication module 910 , a second communication module 920 for processing a signal of the second frequency band 421 , and a third communication module 930 for processing a signal of a third frequency band 422 . At this time, since the processing module is different according to the frequency band of the received signal, the communication path of the signal is also changed. Accordingly, the processor 10 is the first communication module 910 when receiving the signal of the first frequency band 410 through the external antenna, and the second communication module 920 when receiving the signal of the second frequency band. Thus, when receiving a signal of the third frequency band 422 , a path through which the signal is transmitted to the third communication module 930 is controlled. Further details regarding the communication path will be described in FIG. 5 .

According to an embodiment of the present disclosure, when the performance of the antenna module 94 is insufficient or the performance degradation due to the user's grip of the electronic device 100 occurs, the performance degradation can be improved by receiving a signal through an external antenna. As a result, the electronic device 100 may be used in a better antenna environment.

In addition, even when the service is impossible to receive or when the reception sensitivity of the signal is low, it is possible to secure additional coverage than the antenna module 94 of the electronic device 100, and it is possible to secure additional coverage by placing the external antenna at a high place. Areas where service cannot be received can be reduced.

4 is a diagram illustrating a frequency band according to an embodiment of the present disclosure.

4 shows a frequency band of a signal and a reception frequency band of an antenna capable of receiving the signal.

In the case of a signal, a unique frequency band possessed by the signal is specified. 4 shows a first frequency band 410 of a signal and a frequency band 420 different from the first frequency band 410 (hereinafter, also referred to as 'another frequency band'). The other frequency band 420 may be further divided into a second frequency band 421 lower than the first frequency band 410 and a third frequency band 422 higher than the first frequency band 410 .

The signal of the first frequency band 410 according to an embodiment of the present disclosure includes a cellular signal, the signal of the second frequency band 421 includes an FM radio signal, and a signal of the third frequency band 422 . may include a GPS signal. At this time, the bandwidth of the signal of the first frequency band 410 and the signal of the other frequency band 420, the relative size between the bandwidths, etc. are not limited to the illustrated ones, and are intended to show that they have different frequency bands. It is not limited even if the frequency band continues continuously.

In the case of the reception frequency band of the antenna, as described above with reference to S310 of FIG. 3 , it is preferable to design to have a reception frequency band of a wider range than the frequency band of the signal to be received for signal reception efficiency. For example, the antenna module 94 for receiving a signal of the first frequency band 410 may have a reception frequency band 941 including the first frequency band 410 .

The first external antenna 431 for receiving the signal of the second frequency band 421 may be designed to have a reception frequency band 440 including the second frequency band 421 . In this case, the reception frequency band 440 of the first external antenna 431 may include at least a partial band of the first frequency band 410 higher than the second frequency band 421 .

The first external antenna 431 may include, for example, an earphone. When the earphone is used as the first external antenna 431 , the length of the earphone may be adjusted to additionally secure the reception frequency band 440 of the first external antenna 431 . At this time, since the reception frequency band 440 of the first external antenna 431 includes at least a partial band of the first frequency band 410, the signal of the first frequency band 410 within the corresponding at least partial band can be received. can

Similarly, the second external antenna 432 for receiving the signal of the third frequency band 422 may be designed to have the receiving frequency band 450 including the third frequency band 422, and The reception frequency band 450 of the antenna 432 may include at least a partial band of the first frequency band 410 lower than the third frequency band 422 .

The second external antenna 432 may include, for example, a GPS antenna. The GPS antenna may be implemented in the key part of the earphone, or may be implemented in a form detachable to the connection terminal 71 such as an ear jack in which a circuit is implemented without a separate jack or connector.

At this time, since the reception frequency band 450 of the second external antenna 432 includes at least a partial band of the first frequency band 410, the signal of the first frequency band 410 within the corresponding at least partial band can be received. can

The reception frequency band 440 of the first external antenna 431 and the reception frequency band 450 of the second external antenna 432 may be variable. When the reception frequency bands of the antenna module 94 and the external antenna 430 (including the first external antenna 431 and the second external antenna 432) partially overlap, the signal of the frequency band within the overlapping band is Depending on the situation, any one antenna may receive.

Whether the external antenna 430 can receive the signal of the first frequency band 410 may be confirmed based on whether the external antenna 430 resonates with a frequency within the first frequency band 410 .

In this case, the first frequency band 410 includes a plurality of sub-frequency bands 411 that are different from each other, and the processor 10 is a sub-frequency band close to another frequency band 420 among the plurality of sub-frequency bands 411 . The tuner may be controlled to receive a signal of 411 through the external antenna 430 . For example, the first frequency band 410 of FIG. 4 includes a plurality of sub-frequency bands 411 including a first sub-frequency band 4111 and a second sub-frequency band 4112 . At this time, since the first sub-frequency band 4111 is closer to the second frequency band 421 than the second sub-frequency band 4112, there is a possibility of being included in the reception frequency band 440 of the first external antenna 431. Therefore, the processor 10 may control the tuner to identify whether a resonant frequency exists within the first sub-frequency band 4111 . The tuner will be described in detail with reference to FIG. 6 .

According to an embodiment of the present disclosure, a better frequency communication environment can be provided by supplementing the signal reception of the antenna module 94 using the external antenna 430 by using the overlap of the reception frequency bands between the antennas, and to the user It can provide convenience.

5 is a diagram illustrating an operation of an electronic device according to an embodiment of the present disclosure.

In FIG. 5 , in relation to S330 of FIG. 3 , a configuration for controlling a communication path through which a signal received through the external antenna 430 is transmitted will be described.

In FIG. 5 , the external antenna 430 , the switch 510 or the diplexer 520 connected to the connection terminal 71 of the electronic device 100 , and the first communication from the switch 510 or the diplexer 520 . Two paths divided into the module 910 and the second communication module 920 are shown, and the first communication module 910 is electrically connected to the antenna module 94 to transmit and receive signals. has been

According to an embodiment of the present disclosure, the electronic device 100 includes an interface 70 including a connection terminal 71 to which an external antenna 430 is connected. As described above with reference to FIG. 1 , the connection terminal 71 according to an embodiment of the present disclosure connects, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector) to an external device. It may contain configurable configurations.

When the external antenna 430 is connected to the connection terminal 71, when the frequency band of the signal received by the external antenna 430 is the first frequency band 410, the first communication module 910, the second frequency In the case of the band 421 , the second communication module 920 processes it. Accordingly, since the processing module varies according to the frequency band of the signal, the communication path of the signal is also changed. Accordingly, the processor 10 may control the communication path using the switch 510 or the diplexer 520 .

The electronic device 100 according to an embodiment of the present disclosure may further include a switch 510 for connecting the connection terminal 71 and any one of the first communication module 910 or the second communication module 920 . have. Alternatively, instead of the switch 510 , a diplexer 520 connecting the connection terminal 71 and the first communication module 910 and the second communication module 920 may be further included.

When the switch 510 connects any one of the connection terminal 71 and the first communication module 910 or the second communication module 920 , the processor 10 transmits the signal of the first frequency band 410 to the external device. Based on the signal received through the antenna 430 , the switch 510 may be controlled to transmit a signal of the first frequency band 410 to the first communication module 910 .

When the diplexer 520 connects any one of the connection terminal 71 and the first communication module 910 or the second communication module 920, the first communication module 910 and the second communication module 920 ) can transmit signals that can be processed at the same time. The processor 10, the signal of the first frequency band 410 received through the external antenna 430 to the first communication module 910, the second frequency band 421 received through the external antenna 430 The signal of may be controlled to the diplexer 520 to transmit each to the second communication module 920 .

According to an embodiment of the present disclosure, the external antenna 430 receives a signal of the first frequency band 410 that the antenna module 94 wants to receive, and the processor 10 controls the communication path to receive the first communication Since the module 910 can process it, the external antenna 430 can assist the antenna module 94 .

6 is a diagram illustrating a circuit diagram constituting an electronic device according to an embodiment of the present disclosure.

6 is a diagram illustrating a circuit in which the schematic configuration described in FIG. 5 is specifically implemented. Hereinafter, a description overlapping with FIG. 5 will be omitted.

The connection terminal 71 and the audio module 60 according to an embodiment of the present disclosure may be connected by a circuit including lines such as Ground, Speaker Right, Speaker Left, Detect, and Microphone. A switch 510 (hereinafter referred to as a first switch 510) for controlling a signal transmission path to the first communication module 910 and the second communication module 920 is connected to a ground line. When an earphone or the like is connected to the connection terminal 71 , the processor 10 may detect it through a Detect line and input/output an audio signal using the Speaker Right, Speaker Left, and Microphone lines.

According to an embodiment of the present disclosure, when the reception sensitivity of the signal of the first frequency band 410 through the antenna module 94 is lower than a predefined level, the processor 10 controls the first external antenna 431 . The connection is identified through the Detect line.

When the first external antenna 431 is connected, the processor 10 controls the communication path by using the switch 510 to transmit the signal of the first frequency band 410 to the first communication module 910 . At this time, the circuit further includes a switch 620 for controlling a communication path of a signal received from the first external antenna 431 and the antenna module 94 , and the processor 10 is the first from the antenna module 94 . The switch 620 may be controlled to directly receive a signal of the frequency band 410 or receive a signal of the first frequency band 410 through the first external antenna 431 . However, the present invention is not limited thereto, and the circuit may be implemented by separating the communication path received from the antenna module 94 and the communication path received from the first external antenna 431 without the switch 620 . The first communication module 910 according to an embodiment of the present disclosure may process a signal of the first frequency band 410 . In this case, the signal of the first frequency band 410 includes a cellular signal, and the first communication module 910 includes a cellular communication circuit.

The first external antenna 431 may receive a signal of at least a partial band of the first frequency band 410 and a signal of a second frequency band 421 lower than the first frequency band 410 . In this case, the signal of the second frequency band 421 may include an FM radio signal, and the second communication module 920 may include an FM communication circuit that processes the signal of the second frequency band 421 .

The electronic device 100 may include a matching circuit capable of adjusting a reception frequency within the frequency band of the first external antenna 431 , a tuner, and/or X-GND SW (hereinafter referred to as a tuner 610 ). . The tuner 610 may be disposed between the switch 510 (the circuit shows the switch 510, but a diplexer 520 may be used depending on the design) and the cellular communication circuit.

The electronic device 100 includes a tuner 610 capable of adjusting a reception frequency within the reception frequency band 440 of the first external antenna 431, and the first external antenna 431 controls the reception frequency. This means adjusting a frequency within the reception frequency band 440 so that a resonant frequency can be found among frequencies within the first frequency band 410 .

The processor 10 has a reception sensitivity of the signal of the first frequency band 410 through the antenna module 94 is lower than the first level, and the first external antenna 431 is connected to the connection terminal 71. Based on the connection terminal 71, The tuner 610 may be controlled to increase the reception sensitivity of the signal of the first frequency band 410 .

According to various embodiments, the tuner 610 may include at least one reactive element (eg, a capacitor and/or an inductor) and at least one switch. According to various embodiments, the tuner 610 selectively activates (or) at least a portion of at least one reactive element (eg, at least one capacitor and/or at least one inductor) under the control of the processor 10 . deactivation), it is possible to adjust the impedance characteristics of the antenna.

In the case of the first external antenna 431, it is designed to receive the signal of the second frequency band 421. When the signal of the first frequency band 410 is received by the first external antenna 431, it is transmitted Optimal antenna matching may be implemented by using the tuner 610 so that the first communication module 910 may process the signal of the reception first frequency band 410 .

7 is a diagram illustrating a circuit diagram constituting an electronic device according to another exemplary embodiment of the present disclosure.

FIG. 7 shows a third communication module 930 for processing a signal of a third frequency band 422 in addition to the circuit of FIG. 6 .

The second external antenna 432 may receive a signal of at least a partial band of the first frequency band 410 and a signal of a third frequency band 422 higher than the first frequency band 410 . In this case, the signal of the third frequency band 422 may include a GPS signal, and the third communication module 930 may include a GPS communication circuit that processes the signal of the third frequency band 422 .

The electronic device 100 includes a matching circuit capable of adjusting the frequency band of the second external antenna 432 , a tuner, a low noise amplifier (LNA), and a GPS SAW filter (hereinafter referred to as a matching circuit 710 ). may include The matching circuit 710 may be disposed between the switch 510 (the circuit shows the switch 510, but a diplexer 520 may be used depending on the design) and the GPS communication circuit.

8 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the processor 10 identifies that the external antenna 430 is connected (S810), and identifies the reception sensitivity of the connected external antenna 430 (S820). The reception sensitivity may be determined by checking RSSI, RSRP, and RSRQ, as described above in S310 of FIG. 3 .

When the signal reception sensitivity of the first frequency band 410 of the external antenna 430 exceeds the second level (Yes in S830), the signal of the first frequency band 410 is received through the external antenna 430 . (S840).

When the signal reception sensitivity of the first frequency band 410 of the external antenna 430 does not exceed the second level (No in S830), the signal of the first frequency band 410 is received through the antenna module 94 do (S850).

When expressed based on the return loss or VSWR instead of the signal reception sensitivity, the return loss or VSWR of the external antenna 430 in the first frequency band 410 is a predefined level, that is, lower than the third level, the external antenna 430 ), and if not, since performance is not secured, the antenna module 94 can be selected for communication. Specific details will be described with reference to FIG. 10 .

According to an embodiment of the present disclosure, as well as when the signal reception sensitivity of the first frequency band 410 of the antenna module 94 is lower than a predefined first level, the antenna module 94 instead of the first frequency band ( Since it is determined whether to use the external antenna 430 even on the basis of the signal reception sensitivity of the external antenna 430 that receives the signal of 410 , a more reliable result can be derived.

9 is a diagram illustrating an operation flowchart of an electronic device according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the processor 10 identifies whether a service can be received. Whether or not the service can be received identifies the signal reception sensitivity of the first frequency band 410 of the antenna module 94 (S910).

When the identified reception sensitivity is low (weak field situation) or service reception is impossible (out of network situation), the processor 10 identifies whether the external antenna 430 is connected (S920).

If the external antenna 430 is connected (Yes in S920), it is identified whether the reception sensitivity of the reception frequency band of the external antenna 430 is greater than the reception sensitivity of the other frequency bands (S930).

When the reception sensitivity of the reception frequency band of the external antenna 430 is high (Yes in S930), the signal of the first frequency band 410 is received through the external antenna 430 (S940). That is, the processor 10 controls the communication path to transmit the signal of the first frequency band 410 received through the external antenna 430 to the first communication module 910 .

When the reception sensitivity of the reception frequency band of the external antenna 430 is not high (No in S930), the signal of the first frequency band 410 is received through the antenna module 94 (S950).

On the other hand, when the external antenna 430 is not connected (No in S920), the signal of the first frequency band 410 is received through the antenna module 94 (S950). The processor 10 controls the first communication module 910 to process the signal received through the antenna module 94 .

According to an embodiment of the present disclosure, in a situation in which a signal received through the antenna module 94 is a weak electric field, a frequency band capable of handover is checked and then connected to a frequency band having the best reception sensitivity, so that a voice call It can improve the disconnection of phone calls or video streaming services.

10 is a diagram illustrating a graph illustrating reception sensitivity of an electronic device according to an embodiment of the present disclosure.

The graph 1010 of FIG. 10 shows the relationship between the frequency of the external antenna 430 and the VSWR. The horizontal axis represents the frequency of the received signal and the vertical axis represents the magnitude of VSWR. The minimum value of VSWR is 1, and the lower the VSWR, the higher the reception sensitivity.

More specifically, resonance of the external antenna 430 may be checked using a closed loop antenna tuner including a coupler among the tuners 610 . For example, if the signal strength is measured by coupling the transmitted signal and the reflected signal of the signal through a coupler, and the ratio of the transmitted signal strength and the reflected signal strength is calculated, the return loss or the standing wave ratio ( Voltage Standing Wave Ratio (VSWR) can be checked. The processor 10 may check the resonance while adjusting the reception frequency through the tuner 610 based on the information on the return loss or VSWR. In addition, the processor 10 may identify whether the external antenna 430 is usable by checking the return loss or VSWR. If the return loss or VSWR of the external antenna 430 in the frequency band to be used is lower than the third level, the external antenna 430 is used. can communicate.

The resonance point of the external antenna 430 can be moved according to impedance matching using the tuner 610 , and when the tuner 610 such as X-GND SW is used, an additional resonance point is formed to realize a multi-frequency band.

The graph 1020 shows the relationship between the frequency of the antenna module 94 and the VSWR. When the resonance frequency of the antenna module 94 shown in the graph 1020 is compared with the resonance frequency of the external antenna 430 shown in the graph 1010, it can be seen that the reception sensitivity of the external antenna 430 is improved.

10: Processor
20: memory
40: input module
50: display module
60: audio module
70: interface
73: camera module
80: sensor module
85: power management module
86: battery
90: communication module
100: electronics

Claims (20)

In an electronic device,
An antenna module capable of receiving a signal of a first frequency band;
an interface including a connection terminal to which an external antenna capable of receiving a signal of at least a partial band of the first frequency band and a signal of a second frequency band lower than the first frequency band is connected;
a first communication module for processing the signal of the first frequency band;
a second communication module for processing the signal of the second frequency band; and
When the reception sensitivity of the signal of the first frequency band through the antenna module is lower than a predefined level, it is identified whether the external antenna is connected,
Based on that the external antenna is connected to the connection terminal, receiving the signal of the first frequency band through the external antenna,
a processor for controlling a communication path to transmit the received signal of the first frequency band to the first communication module;
An electronic device comprising a. According to claim 1,
Further comprising a switch connecting any one of the connection terminal and the first communication module or the second communication module,
The processor is
An electronic device for controlling the switch to transmit the signal of the first frequency band to the first communication module based on the reception of the signal of the first frequency band through the external antenna. According to claim 1,
Further comprising a diplexer connecting the connection terminal and the first communication module and the second communication module,
The processor is
The diplexer is configured to transmit the signal of the first frequency band received through the external antenna to the first communication module, and the signal of the second frequency band received through the external antenna to the second communication module. control electronics. According to claim 1,
The signal of the first frequency band includes a cellular signal,
The first communication module includes a cellular communication circuit. According to claim 1,
The signal of the second frequency band includes an FM radio signal,
The second communication module is an electronic device including an FM communication circuit. According to claim 1,
The predefined level is a first level,
The processor is
When the reception sensitivity of the signal of the first frequency band through the external antenna is higher than the second level or the return loss is lower than the third level, the electronic device receives the signal of the first frequency band through the external antenna. According to claim 1,
and a tuner capable of adjusting a reception frequency within the reception frequency band of the external antenna;
The processor is
The reception sensitivity of the signal of the first frequency band through the antenna module is lower than the predefined level, and based on that the external antenna is connected to the connection terminal, to increase the reception sensitivity of the signal of the first frequency band An electronic device for controlling the tuner. 8. The method of claim 7,
The first frequency band includes a plurality of different sub-frequency bands,
The processor is
An electronic device for controlling the tuner to receive a signal of a sub-frequency band close to the second frequency band among the plurality of sub-frequency bands through the external antenna. According to claim 1,
The external antenna is a first external antenna,
Further comprising a third communication module for processing a signal of a third frequency band higher than the first frequency band,
The processor is
When the reception sensitivity of the signal of the first frequency band through the antenna module is lower than a predefined level, a second signal of at least a part of the first frequency band and a signal of the third frequency band can be received Identifies whether an external antenna is connected,
receiving the signal of the first frequency band through the second external antenna based on the second external antenna being connected to the connection terminal;
An electronic device for controlling a communication path to transmit the received signal of the first frequency band to the first communication module. 10. The method of claim 9,
The signal of the third frequency band includes a GPS signal,
The third communication module is an electronic device including a GPS communication circuit. In the control method of an electronic device,
When the reception sensitivity of the signal of the first frequency band through the antenna module capable of receiving the signal of the first frequency band is lower than a predefined level, the signal of at least a part of the first frequency band and the first frequency identifying whether an external antenna capable of receiving a signal of a second frequency band lower than the band is connected;
receiving a signal of the first frequency band through the external antenna based on the connection of the external antenna to the connection terminal; and
and controlling a communication path to transmit the received signal of the first frequency band to a first communication module. 12. The method of claim 11,
The step of controlling the communication path comprises:
On the basis of receiving the signal of the first frequency band through the external antenna, the connection terminal and the first communication module or the second communication module to transfer the signal of the first frequency band to the first communication module A control method of an electronic device comprising the step of controlling a switch for connecting any one. 12. The method of claim 11,
The step of controlling the communication path comprises:
The signal of the first frequency band received through the external antenna is transmitted to the first communication module, and the signal of the second frequency band received through the external antenna is transmitted to the second communication module. A method of controlling an electronic device comprising controlling a diplexer connected to a first communication module and the second communication module. 12. The method of claim 11,
The signal of the first frequency band includes a cellular signal,
The first communication module is a control method of an electronic device including a cellular communication circuit. 12. The method of claim 11,
The signal of the second frequency band includes an FM radio signal,
The second communication module is a control method of an electronic device including an FM communication circuit. 12. The method of claim 11,
The predefined level is a first level,
Receiving the signal of the first frequency band through the external antenna,
When the reception sensitivity of the signal of the first frequency band through the external antenna is higher than the second level or the return loss is lower than the third level, receiving the signal of the first frequency band through the external antenna Control method of electronic device. 12. The method of claim 11,
The reception sensitivity of the signal of the first frequency band through the antenna module is lower than the predefined level, and based on that the external antenna is connected to the connection terminal, to increase the reception sensitivity of the signal of the first frequency band The method of controlling an electronic device further comprising the step of controlling the tuner capable of adjusting the reception frequency within the reception frequency band of the external antenna. 18. The method of claim 17,
The first frequency band includes a plurality of different sub-frequency bands,
The step of controlling the tuner comprises:
A method of controlling the electronic device to control the tuner to receive a signal of a sub-frequency band close to the second frequency band among the plurality of sub-frequency bands through the external antenna. 12. The method of claim 11,
The external antenna is a first external antenna,
When the reception sensitivity of the signal of the first frequency band through the antenna module is lower than a predefined level, a signal of at least a part of the first frequency band and a signal of a third frequency band higher than the first frequency band identifying whether a second external antenna capable of being received is connected;
receiving the signal of the first frequency band through the second external antenna based on the second external antenna being connected to the connection terminal; and
The method of controlling an electronic device further comprising controlling a communication path to transmit the received signal of the first frequency band to the first communication module. A computer-readable code, comprising: a computer program storing a code for performing a control method of an electronic device;
When the reception sensitivity of the signal of the first frequency band through the antenna module capable of receiving the signal of the first frequency band is lower than a predefined level, the signal of at least a part of the first frequency band and the first frequency identifying whether an external antenna capable of receiving a signal of a second frequency band different from the band is connected;
receiving a signal of the first frequency band through the external antenna based on the connection of the external antenna to the connection terminal; and
and controlling a communication path to transmit the received signal of the first frequency band to a first communication module.

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