KR20210068827A - Wireless communication structure and electronic device using the same - Google Patents

Abstract

Various embodiments of the present invention relate to a wireless communication structure and an electronic device using the same. The electronic device includes: a first wireless communication circuit processing a first wireless signal of a first frequency band, and including a first filter for filtering the signal of the first frequency band; a second wireless communication circuit processing a second wireless signal of a second frequency band, and including a second filter for filtering the signal of the second frequency band; an antenna transmitting and receiving the wireless signals of the first and second frequency bands, and including first and second feeding points; a first transmission line connecting the first feeding point to the first filter, causing first load impedance at the first feeding point to be matched with the first wireless signal of the first frequency band, and causing the same to be open to the second wireless signal of the second frequency band; and a second transmission line connecting the second feeding point to the second filter, causing second load impedance at the second feeding point to be matched with the second wireless signal of the second frequency band, and causing the same to be open to the first wireless signal of the first frequency band. Besides, various embodiments can be possible. Therefore, the present invention is capable of increasing radiation efficiency of an antenna.

Description

A wireless communication structure and an electronic device using the same {WIRELESS COMMUNICATION STRUCTURE AND ELECTRONIC DEVICE USING THE SAME}

Various embodiments of the present invention relate to a wireless communication structure and an electronic device using the same.

Electronic devices (eg, a mobile terminal, a smart phone, or a wearable device) may provide various functions. For example, in addition to the basic voice communication function, a smart phone has a short-range wireless communication (eg, Bluetooth, Wi-Fi, or near field communication) function, mobile communication (3G (generation), 4G, 5G, etc.) function, a music or video playback function, a shooting function, or a navigation function may be provided.

The electronic devices may include at least one antenna to provide a wireless communication function. Electronic devices may include separate antennas for each frequency band. Alternatively, the electronic device may include a broadband antenna capable of transmitting and receiving wireless signals of multiple frequency bands.

When a plurality of antennas are included, it may be difficult for the electronic device to secure a space for disposing the plurality of antennas, and it may be difficult to secure a physical separation distance to prevent interference between the antennas.

In the case of including a broadband antenna, the electronic device uses at least one circuit and/or component (eg, a diplexer, an antenna switch, and a GPS) to separate radio signals transmitted and received through the broadband antenna for each frequency band. (global positioning system) may include an extractor (extractor) for signal separation. When the at least one circuit and/or component is added, the electronic device may experience an increase in material cost, a lack of an arrangement space, and/or an increase in insertion loss. When the broadband antenna is included, it may be difficult for the electronic device to optimize (eg, optimize the resonance frequency) of transmission/reception performance of radio signals for all frequency bands supported by the broadband antenna.

Various embodiments of the present disclosure may provide an electronic device capable of transmitting and receiving wireless signals of a plurality of frequency bands through one antenna using a multiplexing structure and securing antenna performance for each band. .

An electronic device according to various embodiments of the present disclosure includes, for example, a first wireless communication circuit including a first filter for processing a first wireless signal of a first frequency band and filtering the signal of the first frequency band ; a second radio communication circuit that processes a second radio signal of a second frequency band and includes a second filter for filtering the signal of the second frequency band; an antenna for transmitting and receiving radio signals of the first frequency band and the second frequency band, the antenna including a first feeding point and a second feeding point; connecting the first feeding point and the first filter, such that a first load impedance at the first feeding point is matched with a first radio signal of the first frequency band, and a first transmission line to be opened for a second radio signal; and connecting the second feeding point and the second filter, such that a second load impedance at the second feeding point matches the second radio signal of the second frequency band, It may include a second transmission line to be opened for the first radio signal.

An electronic device according to various embodiments of the present disclosure, for example, processes a radio signal of a specific frequency band and receives a first filter for filtering a signal of a reception band of the specific frequency band and a radio signal of the specific frequency band. a wireless communication circuit including a second filter for filtering; an antenna for transmitting and receiving a radio signal of the specific frequency band and including a first feeding point and a second feeding point; connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line; and a second transmission line connected to the second feeding point so that a second load impedance at the second feeding point matches the specific frequency band.

An electronic device according to various embodiments of the present disclosure, for example, processes a radio signal of a specific frequency band and receives a first filter for filtering a signal of a reception band of the specific frequency band and a transmission signal of the specific frequency band. a wireless communication circuit including a second filter for filtering; an antenna for transmitting and receiving a radio signal of the specific frequency band and including a first feeding point and a second feeding point; connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line; and a second transmission line connected to the second feeding point so that a second load impedance at the second feeding point is matched to the transmission band and open to the reception band.

In the electronic device according to various embodiments of the present disclosure, one antenna may operate for each frequency band (eg, a narrowband antenna optimized for each frequency band rather than a wideband antenna for transmitting and receiving a plurality of frequency bands). can increase the radiation efficiency of

Various embodiments of the present invention can transmit and receive wireless signals of a plurality of frequency bands through one antenna, so that an antenna arrangement space can be secured, and restrictions on an arrangement position can be reduced.

The electronic device according to various embodiments of the present disclosure may remove some components of a radio frequency front end (RFFE) structure, thereby reducing material cost and reducing insertion loss.

Effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. will be.

1 is a block diagram of an electronic device in a network environment, according to an embodiment of the present invention.
2A is a diagram illustrating a wireless communication structure of an electronic device according to an embodiment of the present invention.
2B is a diagram illustrating load impedance according to frequency at each feeding point of an antenna according to an embodiment of the present invention.
2C is a diagram illustrating a resonant frequency at each feeding point of an antenna according to an embodiment of the present invention.
3 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.
4 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.
5 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.
6A is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.
6B to 6F are diagrams for explaining an arrangement example of a filter and a notch filter according to various embodiments of the present disclosure.
7A is a diagram illustrating radiation performance when dual power is supplied to an antenna of an electronic device according to a comparative example.
7B is a diagram illustrating radiation performance of a wireless communication structure of an electronic device according to an embodiment of the present invention.
8 is a diagram illustrating an example of disposing an antenna in an electronic device according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. In this document, specific embodiments are illustrated in the drawings and the related detailed description is described, but this is not intended to limit the various embodiments of the present invention to a specific form. For example, it will be apparent to those of ordinary skill in the art that the embodiments of the present invention can be variously changed.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments of the present disclosure.

Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as a single integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. 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 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132 . may be loaded into the volatile memory 132 , process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and an auxiliary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together with the main processor 121 , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as a part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to an embodiment, the receiver may be implemented separately from or as a part of the speaker.

The display device 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 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 176 may include, 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, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that may be used for the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 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 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 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 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module may be a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with an external electronic device via 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 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one 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 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

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 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same or a different type of the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be performed by one or more of the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service 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. The 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 101 . The electronic device 101 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, or client-server computing technology may be used.

2A is a diagram illustrating a wireless communication structure of an electronic device according to an embodiment of the present invention, and FIG. 2B is a diagram illustrating a load impedance according to frequency at each feeding point of an antenna according to an embodiment of the present invention. FIG. 2C is a diagram illustrating a resonant frequency at each feeding point of an antenna according to an embodiment of the present invention.

Referring to FIGS. 2A to 2C , an electronic device (eg, the electronic device 101 ) according to an embodiment of the present invention includes a first wireless communication circuit 210 , a second wireless communication circuit 220 , and a first transmission It may include a line 215 , a second transmission line 225 , and/or an antenna 230 (eg, an antenna module 197 ).

According to an embodiment of the present invention, the first wireless communication circuit 210 may transmit/receive a first wireless signal of a first frequency band. The first wireless communication circuit 210 may include a first radio frequency front end (RFFE) 211 and a first radio frequency integrated circuit (RFIC) 212 .

According to an embodiment of the present invention, the first RFFE 211 may pre-process the first radio signal received from the antenna 230 . For example, the first RFFE 211 may include a first filter (eg, a duplexer) 211a for separating a transmission/reception band, and a first low-noise amplifier 211b for amplifying a reception signal. The first RFFE 211 may amplify a signal transmitted from the first RFIC 212 . For example, the first RFFE 211 may include a first power amplifier 211c for amplifying a transmission signal.

According to an embodiment of the present invention, the first RFIC 212 down-converts a reception signal of a first frequency band into a baseband signal, and converts a baseband signal to be transmitted into a transmission signal of the first frequency band. can be up-converted.

According to an embodiment of the present invention, the second wireless communication circuit 220 may transmit/receive a second wireless signal of a second frequency band. The second wireless communication circuit 220 may include a second RFFE 221 and a second RFIC 222 .

According to an embodiment of the present invention, the second RFFE 221 may pre-process the second radio signal received from the antenna 230 and may amplify the transmission signal transmitted from the second RFIC 222 . For example, the second RFFE 221 may include a second filter (eg, a duplexer) 221a for separating a transmission/reception band, a second low-noise amplifier 221b for amplifying a reception signal, and/or a second filter for amplifying a transmission signal Two power amplifiers 221c may be included.

According to an embodiment of the present invention, the second RFIC 222 may down-convert a received signal of the second frequency band into a baseband signal, and up-convert a baseband signal to be transmitted into a transmit signal of the second frequency band. have.

According to an embodiment of the present invention, the first transmission line 215 may connect the first feeding point 231 of the antenna 230 and the first RFFE 211 . The second transmission line 225 according to an embodiment of the present invention may connect the second feeding point 232 of the antenna 230 and the second RFFE 221 . In an embodiment, the first transmission line 215 and the second transmission line 225 may include a microstripline or a stripline. The first transmission line 215 and the second transmission line 225 include a flexible printed circuit board (FPCB), an antenna carrier on which an antenna is disposed, a coaxial cable, a printed circuit board and/or It may be formed (or implemented/disposed) on at least one of the connection members connecting the antenna to the printed circuit board.

According to an embodiment of the present invention, although it is illustrated that the first feeding point 231 of the antenna 230 and the first RFFE 211 are connected by the first transmission line 215 in FIG. 2A , the first transmission line The 215 and the first RFEE 211 may be connected through a coaxial cable. In an embodiment, the second transmission line 225 and the second RFEE 221 may be connected through a coaxial cable.

According to an embodiment of the present invention, the antenna 230 may transmit or receive a first radio signal and/or a second radio signal. The antenna 230 may include, for example, an inverted F-type antenna (IFA) or a planar inverted F-type antenna (PIFA).

According to various embodiments, the antenna 230 may include a plurality of feeding points. For example, the antenna 230 may include a first feeding point 231 and a second feeding point 232 . The first load impedance at the first feeding point 231 of the antenna 230 has a value matching the first radio signal of the first frequency band, and has an effect on the second radio signal of the second frequency band It can have very large values that do not give a value (eg, close to infinity (eg operating as an open circuit)). For example, as shown in the diagram of reference numeral 250 of FIG. 2B , the first load impedance for the first radio signal at the first feeding point 231 is close to (or adjacent to) the center 251 of the Smith chart. ) is located (matched), and it can be seen that the first load impedance for the second radio signal is located (open) close to (or adjacent to) the right end 252 of the Smith chart. In this way, the first wireless signal from the first feeding point 231 of the antenna 230 may be transmitted to the first wireless communication circuit 210, but the second wireless signal is reflected or blocked. Able to know.

According to various embodiments, the second load impedance at the second feeding point 232 of the antenna 230 has a value matching the second radio signal of the second frequency band, and the first radio signal of the first frequency band. can have very large values (e.g. values close to infinity) that have no effect on . For example, as shown in the diagram of the identification code 260 of FIG. 2B , the second load impedance for the second radio signal at the second feeding point 232 is close to (or adjacent to) the center 261 of the Smith chart. ) is located (matched), and it can be seen that the second load impedance for the first radio signal is located (open) close to (or adjacent to) the right end 262 of the Smith chart. As such, it can be seen that the second wireless signal from the second feeding point 232 of the antenna 230 may be transmitted to the second wireless communication circuit 220 , but the first wireless signal is reflected or blocked.

According to various embodiments, the first load impedance and the second load impedance may be controlled by adjusting the length and/or width of the first transmission line 215 and the second transmission line 225 . For example, the length and/or width of the first transmission line 215 has a first load impedance matched to the first radio signal at the first feeding point 231 of the antenna 230, and is applied to the second radio signal. It can be configured to have a very large (eg close to infinity) first load impedance that does not affect the As another example, the length and/or width of the second transmission line 225 has a second load impedance matching the second radio signal at the second feeding point 232 of the antenna 230, and It can be configured to have a very large (eg close to infinity) second load impedance that does not affect the

According to various embodiments of the present disclosure, the antenna 230 includes a broadband antenna for transmitting and receiving radio signals of a first frequency band and a second frequency band, as shown in the diagram of the identification code 270 or 280 of FIG. 2C . Otherwise, it may operate as an antenna having a resonant frequency of the first frequency band F1 or may operate as an antenna having a resonant frequency of the second frequency band F2. As described above, although the electronic device according to an embodiment of the present invention includes one antenna 230, the electronic device may operate similarly to a wireless communication structure including each antenna for each frequency band. Also, the electronic device may reduce restrictions on an antenna arrangement space and/or an arrangement position by using only one antenna space. In addition, the electronic device according to an embodiment of the present invention includes at least one circuit and/or component (element) (eg, a diplexer) for separating radio signals of a first frequency band and a second frequency band. ), an antenna switch) is not used, so material cost can be reduced, insertion loss is reduced, and radiation performance can be improved.

According to some embodiments, the electronic device may support carrier aggregation using the antenna 230 . For example, the electronic device may perform carrier aggregation on a first wireless signal transmitted/received through the first feeding point 231 of the antenna 230 and a second wireless signal transmitted/received through the second feeding point 232 . have. Since the electronic device can support carrier aggregation using a single antenna, carrier aggregation can be efficiently implemented compared to a structure that needs to include a plurality of antennas. For example, an antenna that transmits and receives a radio signal in a low frequency band (eg, about several hundred MHz band) may have a relatively large size. The electronic device may have difficulty in supporting carrier aggregation for low frequency bands because it is difficult to arrange a large number of antennas of a large size. However, since the electronic device according to an embodiment of the present invention can support carrier aggregation with one antenna, it is possible to easily implement carrier aggregation for frequencies in a low frequency band.

According to various embodiments, although not shown in FIG. 2A , the antenna 230 may further include a grounding point (not shown) connected to a grounding area of the electronic device. According to some embodiments, the first RFIC 212 and the second RFIC 222 may be implemented as one chip or package. As another example, the first RFFE 211 and the second RFFE 221 may be implemented as one chip or package.

3 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.

Referring to FIG. 3 , an electronic device (eg, electronic device 101 ) according to another embodiment of the present invention includes a wireless communication circuit 310 , a first transmission line 315 , a second transmission line 325 , and / or an antenna 330 (eg, an antenna module 197).

According to an embodiment of the present invention, the wireless communication circuit 310 may transmit/receive a wireless signal of a specific frequency band. The wireless communication circuit 310 may support RX diversity. The wireless communication circuitry 310 may include an RFFE 311 and an RFIC 312 .

According to an embodiment of the present invention, the RFFE 311 includes a first filter 311d for filtering a first reception signal, a second filter (eg, a duplexer) 311a for separating a signal of a transmission/reception band, and a second reception It may include a low-noise amplifier 311b for amplifying a signal, and/or a power amplifier 311c for amplifying a transmission signal.

According to an embodiment of the present invention, the electronic device may transmit/receive wireless signals of a transmission band and a reception band of a specific frequency band, rather than transmitting/receiving wireless signals of a plurality of frequency bands through the antenna 330 . For example, when it is necessary to improve the characteristics of a reception signal of a specific frequency band, the antenna 330 has a resonance frequency optimized for the reception band and a resonance frequency optimized for a specific frequency band (including a transmission band and a reception band). can be implemented.

According to an embodiment of the present invention, the first feeding point 331 of the antenna 330 is connected to the first filter 311d of the RFFE 311 through the first transmission line 315, and the second feeding point 332 may be connected to the second filter 311a through the second transmission line 325 . The first load impedance at the first feeding point 331 of the antenna 330 has a value that matches the first reception signal of the reception band, and corresponds to the transmission signal of the transmission band transmitted through the second feeding point 332 . It can have very large values (eg close to infinity that can operate as an open circuit) with no effect on the value. For example, at the first feeding point 331 of the antenna 330 , the first reception signal is transmitted through the first transmission line 315 and the first filter 311d to the first reception terminal RX1 of the RFIC 312 . may be transmitted, and the transmitted signal may be reflected or blocked. For example, a signal other than the first received signal cannot be transmitted to the RFFE 311 through the first feeding point 331 .

According to various embodiments of the present disclosure, the second load impedance at the second feeding point 332 of the antenna 330 may have a value matched to a specific frequency band (including a transmission band and a reception band). For example, the second reception signal at the second feeding point 332 of the antenna 230 is transmitted through the second transmission line 325 , the second filter 311a and the low noise amplifier 311b of the RFIC 312 . It is transmitted to the second receiving terminal RX2, and the transmission signal TX is transmitted through the power amplifier 311c, the second filter 311a, and the second transmission line 325 to the second feeding point 332 of the antenna 330. ) can be transmitted.

According to another embodiment of the present invention, the electronic device uses only the signal received through the first receiving terminal RX1 or the first reception received through the first receiving terminal RX1 and the second receiving terminal RX2 Receive diversity may be supported using the signal and the second received signal. The above-described embodiment of the present invention can improve the radiation performance of the reception band by providing an antenna optimized for the reception band of a specific frequency band.

According to some embodiments, the transmission band and the reception band may be separated. For example, only the radio signal of the reception band may be received through the first feeding point 331 , and only the radio signal of the transmission band, not the transmission/reception band, may be transmitted through the second feeding point 332 . The first load impedance at the first feeding point 331 may be implemented to have a very large value that matches the reception signal and does not affect the transmission band. The second load impedance at the second feeding point 332 may be implemented to have a very large value that matches the transmission signal and does not affect the reception signal. In an embodiment, in the electronic device, the second filter 311a may be a filter that filters a radio signal of a transmission band, not a duplexer, and the low noise amplifier 311b is disposed between the first filter 311d and the RFIC 312 . can be located In this case, it is possible to provide antennas optimized for the transmit band and the receive band, respectively (an antenna optimized for the transmit band and the receive band is separately provided), so that radiation performance of the transmit band and the receive band can be improved.

4 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.

Referring to FIG. 4 , an electronic device (eg, electronic device 101 ) according to an embodiment of the present invention includes a first wireless communication circuit 410 , a second wireless communication circuit 420 , and a first transmission line 415 . ), a second transmission line 425 , and/or an antenna 430 (eg, an antenna module 197 ). Hereinafter, for convenience of description, a description of a configuration similar to or identical to the configuration described above with reference to FIGS. 2A to 3 will be omitted.

According to an embodiment of the present invention, the first wireless communication circuit 410 may transmit/receive a first wireless signal of a first frequency band. The first wireless communication circuit 410 may include a first RFFE 411 and/or a first RFIC 412 . According to an embodiment of the present invention, the first RFFE 411 includes a first filter (eg, a duplexer) 411a for separating a transmission/reception band, a first low-noise amplifier 411b for amplifying a reception signal, and/or a transmission A power amplifier 411c for amplifying the signal may be included.

According to an embodiment of the present invention, the second wireless communication circuit 420 may receive a wireless signal (eg, a GPS signal, a GNSS signal, or a GLONASS signal) of the second frequency band. The second wireless communication circuit 420 may include a second RFFE 421 and/or a second RFIC 422 . The second RFFE 421 according to an embodiment of the present invention includes a second low-noise amplifier 421a for amplifying a received signal, a second filter 421c and/or a third filter 421b for filtering the received signal. can do.

According to another embodiment of the present invention, the electronic device may transmit/receive a radio signal of a first frequency band and receive a radio signal of a second frequency band through the antenna 430 .

According to various embodiments of the present disclosure, the first feeding point 431 of the antenna 430 is connected to the first RFFE 411 through the first transmission line 415 , and the second feeding point 432 is the second feeding point 432 . It may be connected to the second RFFE 421 through two transmission lines 425 .

According to various embodiments of the present disclosure, the first load impedance at the first feeding point 431 of the antenna 430 has a value that matches the first frequency band, and does not affect the second frequency band. can have a large value. For example, the reception signal of the first frequency band at the first feeding point 431 of the antenna 430 is transmitted through the first transmission line 415 , the first filter 411a, and the first low-noise amplifier 411b. It may be transmitted to the receiving terminal RX1 of the first RFIC 412 . The transmission signal of the first frequency band is transmitted from the transmission terminal TX of the first RFIC 412 through the power amplifier 411c, the first filter 411a, and the first transmission line 415 to the first feeding point 431 ) can be transmitted. The radio signal of the second frequency band may be reflected or blocked.

According to various embodiments of the present disclosure, the second load impedance at the second feeding point 432 of the antenna 430 has a value matching the second frequency band (eg, the GPS reception band), and the first frequency band It can have a very large value that does not affect . For example, the received signal of the second frequency band at the second feeding point 432 of the antenna 430 is transmitted through the second transmission line 425 , the second low-noise amplifier 421a and the third filter 421b. The second RFIC 412 may be transmitted to the receiving terminal RX2, and a radio signal of the first frequency band may be reflected or blocked.

According to another embodiment of the present invention, since the electronic device does not include a global positioning system (GPS) extractor, material cost may be reduced, insertion loss may be reduced, and radiation performance may be improved.

5 is a diagram illustrating a wireless communication structure of an electronic device according to another embodiment of the present invention.

Referring to FIG. 5 , an electronic device (eg, the electronic device 101 ) according to an embodiment of the present invention includes a first wireless communication circuit 510 , a second wireless communication circuit 520 , and a first transmission line 515 . ), a second transmission line 525 , and/or an antenna 530 (eg, an antenna module 197 ). Hereinafter, for convenience of description, a description of a configuration similar to or identical to the configuration described above with reference to FIGS. 2A to 4 will be omitted.

According to an embodiment of the present invention, the first wireless communication circuit 510 may be similar to or identical to the first wireless communication circuit 210 of FIG. 2A and the first wireless communication circuit 410 of FIG. 4 . For example, the first RFFE 511 of the first wireless communication circuit 510 may include a first filter (eg, a duplexer) 511a, a first low noise amplifier 511b, and a first power amplifier 511c. can In an embodiment, the first wireless communication circuit 510 may be a legacy communication circuit.

According to an embodiment of the present invention, the second wireless communication circuit 520 may transmit/receive a wireless signal of the second frequency band. In an embodiment, the second wireless communication circuit 520 may be a new radio (NR) communication circuit. For example, the second wireless communication circuit 520 may transmit and receive a wireless signal of the 5G Sub 6 band (about 6Ghz or less). The second RFFE 521 of the second wireless communication circuit 520 may include a second filter 521a, a switch 521b, a second low noise amplifier 521c, and/or a second power amplifier 521d. have.

According to another embodiment of the present invention, in the electronic device, the first wireless communication circuit 510 transmits and receives a radio signal of legacy communication through the first feeding point 531 of the antenna 530 , and the second wireless communication circuit It may be similar to the above-described embodiments, except that the 520 transmits and receives a radio signal of the 5G Sub 6 band through the second feeding point 532 of the antenna 530 .

6A is a diagram illustrating an antenna system of an electronic device according to another embodiment of the present invention, and FIGS. 6B to 6F are views for explaining an arrangement example of a filter and a notch filter according to various embodiments of the present invention; .

6A to 6F , an electronic device (eg, the electronic device 101 ) according to an embodiment of the present invention includes a first wireless communication circuit 610 , a second wireless communication circuit 620 , and a first counterpart. A cross band filter 611a, a second relative band filter 621a, a first transmission line 615, a second transmission line 625, and/or an antenna 630 (eg, an antenna module 197) )) may be included. Hereinafter, for convenience of description, a description of a configuration similar to or identical to the configuration described in FIGS. 2A to 5 will be omitted.

The antenna 630 according to an embodiment of the present invention may include a ground point 634 connected to the ground area 60 of the electronic device (eg, a ground layer of a printed circuit board).

According to an embodiment of the present invention, the first RFFE 611 of the first wireless communication circuit 610 is a first notch filter 611c, a first filter (eg, a duplexer) 611d, a first low noise amplifier ( 611e) and/or a first power amplifier 611f.

The first filter 611d, the first low-noise amplifier 611e, and the first power amplifier 611f include the first filter 211a, the first low-noise amplifier 211b and the first power amplifier 211c of FIG. 2A and may be similar or identical.

According to an embodiment of the present invention, the first relative band filter 611a may block radio signals of the counterpart frequency band (eg, the second frequency band). Through this, it is possible to prevent the signal of the second frequency band from being introduced (or abandoned) to the first wireless communication circuit 610 through the first feeding point 631 .

According to an embodiment of the present invention, the first notch filter 611c is disposed between the first filter 611d and the first relative band filter 611a, and when a radio signal of the second frequency band is transmitted and received, the first The load impedance at the first feeding point 631 for the two frequency bands may be very large. According to an embodiment, the first notch filter 611c may be of a tunable type. For example, the value of the first notch filter 611c is such that, when transmitting and receiving a radio signal of the second frequency band, the load impedance for the second frequency band at the first feeding point 631 has a very large value ( Example: It can be changed to move as far as possible to the right end of the Smith chart).

According to some embodiments, the first RFFE 611 may further include a first antenna switch module (not shown). For example, when the first wireless communication circuit 610 supports a plurality of frequency bands, the first RFFE 611 switches a path of a radio signal between the first notch filter 611c and the first filter 611d It may further include a first antenna switch module (not shown). When the first antenna switch module (not shown) transmits and receives a radio signal of one of the frequency bands supported by the first wireless communication circuit 610 (hereinafter, 1-1 frequency band), a first filter ( 611d), and may be switched to be connected to another filter (not shown) when transmitting and receiving radio signals of other frequency bands (hereinafter, 1-2 frequency bands). According to another embodiment, the first notch filter 611c may be included in the first antenna switch module (not shown).

According to an embodiment, the first filter 611d may be replaced with a switch that switches a transmission path and a reception path when the first wireless communication circuit 610 transmits and receives a wireless signal in a time division manner.

According to an embodiment of the present invention, the second RFFE 621 of the second wireless communication circuit 620 is a second notch filter 621c, a second filter (eg, a duplexer) 621d, a second low-noise amplifier ( 621e) and/or a second power amplifier 621f.

The second filter 621d, the second low noise amplifier 621e, and the second power amplifier 621f include the second filter 221a, the second low noise amplifier 221b and the second power amplifier 221c of FIG. 2A. may be similar or identical.

According to an embodiment of the present invention, the second relative band filter 621a may block radio signals of the counterpart frequency band (eg, the first frequency band). Through this, it is possible to prevent the signal of the first frequency band from being introduced (or abandoned) to the second wireless communication circuit 620 through the second feeding point 632 .

According to an embodiment of the present invention, the second notch filter 621c is disposed between the second filter 621d and the second relative band filter 621a, and when transmitting and receiving a radio signal of the first frequency band, the first The load impedance at the second feeding point 632 for one frequency band may be very large. According to an embodiment, the second notch filter 621c may be of a tunable type. For example, the value of the second notch filter 621c is such that, when transmitting and receiving a radio signal of the first frequency band, the load impedance for the first frequency band at the second feeding point 632 has a very large value ( Example: It can be varied (to move as far as possible to the right end of the Smith chart).

According to some embodiments, the second RFFE 621 may further include a second antenna switch module (not shown). For example, when the second wireless communication circuit 620 supports a plurality of frequency bands, the second RFFE 621 switches the path of the radio signal between the second notch filter 621c and the second filter 621d. It may further include a second antenna switch module (not shown). According to another embodiment, the second notch filter 621c may be included in the second antenna switch module (not shown).

According to an embodiment, the second filter 621d may be replaced with a switch for switching a transmission path and a reception path when the second wireless communication circuit 620 transmits and receives a wireless signal in a time division manner.

Although the electronic device is illustrated as including a first relative band filter 611a, a first notch filter 611c, a second relative band filter 621a, and a second notch filter 621c in FIG. 6A, the present invention One embodiment is not limited thereto. For example, as shown in FIG. 6B , a first relative band filter 611a is disposed between the first feeding point 631 and the first filter 611d, and the first RFEE 611 is a first notch A first filter 611d, a first low noise amplifier 611e, and a first power amplifier 611f may be included without including a filter. As another example, the second relative band filter 621a is disposed between the second feeding point 632 and the second filter 621d, the second RFFE 621 does not include the first notch filter, and the second It may include a filter 621d, a second low noise amplifier 621e, and a second power amplifier 621f.

As another example, as shown in FIG. 6C , a first notch filter 611c rather than a first relative band filter is disposed between the first feeding point 631 and the first filter 611d, and the first RFEE 611 ) may include a first filter 611d, a first low-noise amplifier 611e, and a first power amplifier 611f. As another example, a second notch filter 621c, not a second relative band filter, is disposed between the second feeding point 632 and the second filter 621d, and the second RFEE 621 is the second filter 621d ), a second low-noise amplifier 621e and a second power amplifier 621f.

As another example, as shown in FIG. 6d , a first notch filter 611c is disposed between the first feeding point 631 and the first filter 611d, and the first RFEE 611 is a first filter ( 611d), a first low-noise amplifier 611e, and a first power amplifier 611f. As another example, a second relative band filter 621a is disposed between the second feeding point 632 and the second filter 621d, and the second RFFE 621 includes a second filter 621d and a second low-noise amplifier. 621e and a second power amplifier 621f.

As another example, as shown in FIG. 6E , a first notch filter 611c is disposed between the first feeding point 631 and the first filter 611d, and the first RFFE 611 is a first filter ( 611d), a first low-noise amplifier 611e, and a first power amplifier 611f. A second relative band filter and a second notch filter are not disposed between the second feeding point 632 and the second filter 621d, and the second RFEE 621 includes a second filter 621d, a second low-noise amplifier ( 621e) and a second power amplifier 621f. A third notch filter 624 may be disposed between the ground point 634 and the ground region 60 . According to some embodiments, a relative band filter may be disposed between the ground point 634 and the ground region 60 .

According to an embodiment of the present invention, the grounding point 634 may be located between the first feeding point 631 and the second feeding point 632 . The ground point 634 may have an open state with respect to the first radio signal based on the first feeding point 631 , and may act as a ground for the second signal. As another example, the ground point 634 may act as an open state for the second wireless signal based on the second feeding point 632 and act as a ground for the first wireless signal.

As another example, as shown in FIG. 6f , a first notch filter 611c is disposed between the first feeding point 631 and the first filter 611d, and the first RFFE 611 is a first filter ( 611d), a first low-noise amplifier 611e, and a first power amplifier 611f. A second relative band filter 621a is disposed between the second feeding point 632 and the second filter 621d, and the second RFFE 621 includes a second filter 621d, a second low-noise amplifier 621e and A second power amplifier 621f may be included. A third notch filter 624 may be disposed between the ground point 634 and the ground region 60 .

The above-described embodiment of FIGS. 6A to 6F is only an example and does not limit the embodiments of the present invention. For example, the relative band filter and the notch filter may be variously disposed. In addition, the above-described embodiment of FIGS. 2A to 6F is only an example and does not limit the embodiments of the present invention. For example, each of the embodiments of FIGS. 6A to 6F may be applied to the embodiments of FIGS. 2A to 5 . Also, at least two of the embodiments of FIGS. 2A to 6F may be combined.

FIG. 7A is a diagram illustrating radiation performance of an antenna of an electronic device according to a comparative example during double feeding, and FIG. 7B is a diagram illustrating radiation performance of a wireless communication structure of an electronic device according to an embodiment of the present invention.

7A to 7B , the antenna 70 of the comparative example may include a first feed point 71 , a second feed point 72 , a radiator 73 , and a ground point 74 . In order to measure the radiation performance of the antenna 70, a radio signal of a first frequency band (eg, 2.4 GHz) is applied to a first feeding point 71 and a second frequency band ( Example: 5 GHZ) of a radio signal can be applied. Referring to the first graph 711 of FIG. 7A , it can be seen that resonance does not occur in the antenna 70 at the first feeding point 71 , and referring to the second graph 712 , the second feeding point 71 . It can be seen that a slight (eg, about 3 dB) resonance occurs with respect to the second frequency band at point 72 .

The antenna 730 according to an embodiment of the present invention includes a first feeding point 731 , a second feeding point 732 , a radiator 733 , a grounding point 734 , a first transmission line 735 , and a second A transmission line 736 may be included.

In an embodiment, the first transmission line 735 may be formed to extend by a predetermined size (eg, 8 mm) from the first feeding point 731 . For example, the length of the first transmission line 735 may be such that the load impedance at the first feeding point 731 has a very large value that does not affect the second frequency band. According to some embodiments, the width of the first transmission line 735 may be adjusted.

In an embodiment, the second transmission line 736 may be formed to extend by a predetermined size (eg, 9 mm) from the second feeding point 732 . For example, the length of the second transmission line 736 may be such that the load impedance at the second feeding point 732 has a very large value that does not affect the first frequency band. According to some embodiments, the width of the second transmission line 736 may be adjusted.

Referring to the third graph 713 of FIG. 7B , it can be seen that the antenna 730 generates resonance in the first frequency band at the first feeding point 731 and does not generate resonance in the second frequency band. can Referring to the fourth graph 714 of FIG. 7B , it can be seen that the antenna 730 generates resonance in the second frequency band at the second feeding point 732 and does not generate resonance in the first frequency band. can In this way, for example, the antenna 730 according to an embodiment of the present invention may operate as an antenna optimized for the first frequency band based on the first feeding point 731 and the second feeding point 732 . ) may operate as an antenna optimized for the second frequency band.

8 is a diagram illustrating an example of disposing an antenna in an electronic device according to an embodiment of the present invention.

Referring to FIG. 8 , an antenna 830 according to an embodiment of the present invention may be disposed in a part of the housing 80 of the electronic device (eg, the electronic device 101 ) so as to be adjacent to the interface module. For example, the antenna 830 according to an embodiment of the present invention has a housing 80 in which the arrangement of the antenna 830 may be restricted due to the arrangement of the charging interface module 810 and the ear jack interface module 820 . It may be placed on a part (eg, at the bottom) of the In the electronic device according to an embodiment of the present invention, the antenna 830 may transmit and receive wireless signals of different frequency bands through the first feeding point 831 and the second feeding point 832 , so that a plurality of antennas are disposed. it may not be In this way, in one embodiment of the present invention, restrictions on the arrangement space and/or arrangement position of the antenna 830 may be reduced.

An electronic device (eg, the electronic device 101) according to various embodiments of the present disclosure processes a first radio signal of a first frequency band and a first filter (eg, a first filter for filtering the signal of the first frequency band) 1 filter (211a, 411a, 511a, 611d)) including a first wireless communication circuit (eg, a first wireless communication circuit (210, 410, 510, 610)); A second radio communication circuit including a second filter (eg, second filters 221a, 421c, 521a, 621d) for processing a second radio signal of a second frequency band and filtering the signal of the second frequency band (eg, the first wireless communication circuit (210, 410, 510, 610)); Transmits and receives radio signals of the first frequency band and the second frequency band, and a first feeding point (eg, a first feeding point 231, 431, 531, 631, 731, 831) and a second feeding point (example) : An antenna (eg, an antenna module 197, an antenna 230, 430, 530, 630, 830) including a second feed point (232, 432, 532, 632, 732, 832); connecting the first feeding point and the first filter, such that a first load impedance at the first feeding point is matched with a first radio signal of the first frequency band, and a first transmission line (eg, a first transmission line 215, 415, 515, 615, 735) configured to be open for a second radio signal; and connecting the second feeding point and the second filter, such that a second load impedance at the second feeding point matches the second radio signal of the second frequency band, and A second transmission line (eg, second transmission lines 225 , 425 , 525 , 625 , and 736 ) configured to be opened for the first wireless signal may be included.

According to various embodiments, a first cross band filter (eg, a first cross band filter 611a) located between the first feeding point and the first filter and blocking the second radio signal ; Alternatively, it may further include at least one of a second relative band filter (eg, a second relative band filter 621a) located between the second feeding point and the second filter and blocking the first radio signal.

According to various embodiments, it is located between the first feed point and the first relative band filter, or is located between the first relative band filter and the first filter, and the first load impedance is applied to the second signal. a first notch filter (eg, a first notch filter 611c) to be open to; or located between the second feed point and the second relative band filter, or between the second relative band filter and the second filter, such that the second load impedance is open to the first radio signal At least one of the second notch filters (eg, the second notch filter 621c) may be further included.

According to various embodiments, a first notch filter positioned between the first feeding point and the first filter, the first load impedance to be opened to the second signal; Alternatively, it may further include at least one of a second notch filter positioned between the second feeding point and the second filter and configured to open the second load impedance to the first radio signal.

According to various embodiments, at least one of the first notch filter and the second notch filter may be of a tunable type.

According to various embodiments, the antenna may further include a grounding point (eg, grounding points 634 and 734) connected to a grounding area (eg, the grounding area 60) of the electronic device, and A third relative band filter or a third notch filter (eg, a third notch filter 634) positioned between the ground regions may be further included.

According to various embodiments, the first wireless communication circuit may be a cellular communication circuit, and the second wireless signal may be a global positioning system (GPS) communication circuit.

According to various embodiments, the first wireless communication circuit may be a legacy communication circuit, and the second wireless signal may be a new radio (NR) communication circuit.

According to various embodiments, the first wireless signal and the second wireless signal may be capable of carrier aggregation (CA).

According to various embodiments, the antenna is an interface module (eg, an interface module (eg, interface 177, charging interface module 810, ear jack interface module 820) and adjacent housing (eg, housing 80)) It can be placed in a part of

According to various embodiments, the first transmission line and the second transmission line may include an antenna carrier on which the antenna is disposed, a flexible printed circuit board, a coaxial cable, a printed circuit board, or the printed antenna. It may be implemented in at least one of the connection members connected to the circuit board.

According to various embodiments, the antenna may include an inverted F-type antenna (IFA) or a planar inverted F-type antenna (PIFA).

An electronic device (eg, the electronic device 101 ) according to various embodiments of the present disclosure processes a radio signal of a specific frequency band and filters a signal of a reception band of the specific frequency band (eg, a first filter) a filter (311d)) and a second filter (eg, a second filter 311a) for filtering the radio signal of the specific frequency band; a wireless communication circuit (eg, a wireless communication circuit 310); An antenna (eg, an antenna) that transmits and receives a radio signal of the specific frequency band and includes a first feeding point (eg, the first feeding point 331) and a second feeding point (eg, the second feeding point 332) module 197, antenna 330); connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line (eg, the first transmission line 315); and a second transmission line (eg, the second transmission line 325 ) connected to the second feeding point and configured to match a second load impedance at the second feeding point to the specific frequency band.

According to various embodiments, the wireless communication circuit may support receive diversity based on a first received signal received through the first feeding point and a second received signal received through the second feeding point.

According to various embodiments, it may further include a first relative band filter (eg, a first relative band filter 611a) located between the first feeding point and the first filter and blocking the radio signal of the transmission band. can

According to various embodiments, it may be located between the first feeding point and the first relative band filter or between the first relative band filter and the first filter, and the first load impedance is the transmission signal It may further include a first notch filter (eg, a first notch filter 611c) to be opened with respect to .

According to various embodiments, the first notch filter may be positioned between the first feeding point and the first filter, and may further include a first notch filter configured to open the first load impedance to the transmission signal.

According to various embodiments, the antenna may further include a grounding point (eg, grounding points 634 and 734) connected to a grounding area (eg, the grounding area 60) of the electronic device, and A second notch filter (eg, a third notch filter 634) positioned between the ground regions may be further included.

According to various embodiments, the first transmission line and the second transmission line may include an antenna carrier on which the antenna is disposed, a flexible printed circuit board, a coaxial cable, a printed circuit board, or the printed antenna. It may be implemented in at least one of the connection members connected to the circuit board.

An electronic device (eg, the electronic device 101 ) according to various embodiments of the present disclosure processes a radio signal of a specific frequency band and filters a signal of a reception band of the specific frequency band (eg, a first filter) a filter 311d) and a wireless communication circuit (eg, a wireless communication circuit 310) including a second filter for filtering the transmission signal of the specific frequency band; an antenna for transmitting and receiving a radio signal of the specific frequency band and including a first feeding point and a second feeding point; connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line; and a second transmission line connected to the second feeding point so that a second load impedance at the second feeding point is matched to the transmission band and open to the reception band.

Electronic devices according to various embodiments disclosed in this document may be devices 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, and 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 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 be used simply to distinguish the component from other such components, and refer to those components in other aspects (eg, 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.

As used herein, the term “module” may include a unit implemented in 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 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 136 or external memory 138) readable by a machine (eg, electronic device 101) may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one of one or more instructions 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 at least one command called. 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 include 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 ^TM ) 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 part of the computer program product may be temporarily stored or temporarily generated 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. 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, omitted, or , or one or more other operations may be added.

Claims (20)

In an electronic device,
a first radio communication circuit that processes a first radio signal of a first frequency band and includes a first filter for filtering the signal of the first frequency band;
a second radio communication circuit including a second filter for processing a second radio signal of a second frequency band and filtering the signal of the first frequency band;
an antenna for transmitting and receiving radio signals of the first frequency band and the second frequency band, the antenna including a first feeding point and a second feeding point;
connecting the first feeding point and the first filter, such that a first load impedance at the first feeding point is matched with a first radio signal of the first frequency band, and a first transmission line to be opened for a second radio signal; and
connecting the second feeding point and the second filter, such that a second load impedance at the second feeding point is matched to the second radio signal of the second frequency band, and the first frequency band of the first frequency band 1 An electronic device including a second transmission line to be opened for a wireless signal.
The method of claim 1,
a first cross band filter positioned between the first feeding point and the first filter and blocking the second radio signal; or
The electronic device further comprising at least one of a second relative band filter positioned between the second feeding point and the second filter and blocking the first radio signal.
3. The method of claim 2,
a first notch located between the first feed point and the first relative band filter, or between the first relative band filter and the first filter, such that the first load impedance is open to the second signal filter; or
a second positioned between the second feed point and the second relative band filter, or between the second relative band filter and the second filter, such that the second load impedance is open to the first radio signal The electronic device further comprising at least one of a notch filter.
The method of claim 1,
a first notch filter positioned between the first feeding point and the first filter and configured to open the first load impedance to the second signal; or
The electronic device further comprising at least one of a second notch filter positioned between the second feeding point and the second filter and configured to open the second load impedance to the first radio signal.
5. The method according to claim 3 or 4,
At least one of the first notch filter and the second notch filter
An electronic device of a tunable type.
The method of claim 1,
The antenna further includes a ground point connected to a ground area of the electronic device,
The electronic device further comprising a third relative band filter or a third notch filter positioned between the ground point of the antenna and the ground region.
The method of claim 1,
the first wireless communication circuit is a cellular communication circuit;
The second wireless signal is a global positioning system (GPS) communication circuit.
The method of claim 1,
The first wireless communication circuit is a legacy communication circuit,
The second radio signal is an NR (new radio) communication circuit.
The method of claim 1,
The electronic device capable of carrier aggregation (CA) of the first radio signal and the second radio signal.
The method of claim 1,
the antenna is
An electronic device disposed in a portion of the housing adjacent to the interface module.
The method of claim 1,
The first transmission line and the second transmission line are
An electronic device implemented in at least one of an antenna carrier on which the antenna is disposed, a flexible printed circuit board, a coaxial cable, a printed circuit board, or a connection member connecting the antenna to the printed circuit board.
The method of claim 1,
the antenna is
An electronic device including an inverted F-type antenna (IFA) or a planar inverted F-type antenna (PIFA).
In an electronic device,
a wireless communication circuit that processes a radio signal of a specific frequency band and includes a first filter that filters a signal of a reception band of the specific frequency band and a second filter that filters a radio signal of the specific frequency band;
an antenna for transmitting and receiving a radio signal of the specific frequency band and including a first feeding point and a second feeding point;
connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line; and
and a second transmission line connected to the second feeding point and configured to match a second load impedance at the second feeding point to the specific frequency band.
14. The method of claim 13,
The wireless communication circuit is
An electronic device supporting receive diversity based on a first received signal received through the first feeding point and a second received signal received through the second feeding point.
14. The method of claim 13,
The electronic device further comprising a first relative band filter positioned between the first feeding point and the first filter to block the radio signal of the transmission band.
16. The method of claim 15,
A first notch filter located between the first feed point and the first relative band filter, or located between the first relative band filter and the first filter, such that the first load impedance is open to the transmission signal An electronic device further comprising a.
14. The method of claim 13,
and a first notch filter positioned between the first feeding point and the first filter and configured to open the first load impedance to the transmission signal.
14. The method of claim 13,
The antenna further includes a ground point connected to a ground area of the electronic device,
The electronic device further comprising a second notch filter positioned between the ground point of the antenna and the ground region.
14. The method of claim 13,
The first transmission line and the second transmission line are
An electronic device implemented in at least one of an antenna carrier on which the antenna is disposed, a flexible printed circuit board, a coaxial cable, a printed circuit board, or a connection member connecting the antenna to the printed circuit board.
In an electronic device,
a wireless communication circuit including a first filter for processing a radio signal of a specific frequency band and filtering a signal of a reception band of the specific frequency band, and a second filter for filtering a transmission signal of the specific frequency band;
an antenna for transmitting and receiving a radio signal of the specific frequency band and including a first feeding point and a second feeding point;
connected to the first feeding point, such that a first load impedance at the first feeding point is matched to a reception band of the specific frequency band, and is open to a transmission band of the specific frequency band a first transmission line; and
and a second transmission line connected to the second feeding point so that a second load impedance at the second feeding point is matched to the transmission band and open to the reception band.

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