A communication circuit includes: a first radio frequency (RF) chain configured to output and/or receive a signal of a first frequency band through an antenna port; a second RF chain configured to output and/or receive a signal of a second frequency band through the antenna port; and a switch comprising a first terminal electrically connected to the first RF chain, a second terminal electrically connected to the second RF chain, and a third terminal electrically connected to a ground. The switch is configured to operate in a first operation mode or a second operation mode. In the first operation mode, the first terminal is electrically connected to the second terminal. In the second operation mode, the first terminal is electrically connected to the third terminal.

An electronic device for transmitting, to a cover device, data acquired from an external electronic device, on the basis of identification information of the cover device, and a control method are disclosed. An electronic device according to various embodiments of the present document comprises: a housing; a first antenna and a second antenna which are accommodated in the housing; a first wireless communication circuit set to provide first wireless communication by using the first antenna; a second wireless communication circuit set to provide second wireless communication by using the second antenna; and a control circuit accommodated in the housing and operably connected to the first wireless communication circuit and the second wireless communication circuit, wherein the control circuit detects coupling between a cover device, which can be coupled to one side of the electronic device, and the electronic device, and the cover device includes a third antenna and a third wireless communication circuit set to provide the first wireless communication by using the third antenna, and can be set to: acquire, through the first wireless communication circuit, identification information related to the cover device from the cover device at least on the basis of the detection; acquire, through the second wireless communication circuit, data corresponding to the identification information from an external electronic device; and transmit, through the first wireless communication circuit, the acquired data to the third wireless communication circuit included in the cover device.

An electronic device for transmitting, to a cover device, data acquired from an external electronic device, on the basis of identification information of the cover device, and a control method are disclosed. An electronic device according to various embodiments of the present document comprises: a housing; a first antenna and a second antenna which are accommodated in the housing; a first wireless communication circuit set to provide first wireless communication by using the first antenna; a second wireless communication circuit set to provide second wireless communication by using the second antenna; and a control circuit accommodated in the housing and operably connected to the first wireless communication circuit and the second wireless communication circuit, wherein the control circuit detects coupling between a cover device, which can be coupled to one side of the electronic device, and the electronic device, and the cover device includes a third antenna and a third wireless communication circuit set to provide the first wireless communication by using the third antenna, and can be set to: acquire, through the first wireless communication circuit, identification information related to the cover device from the cover device at least on the basis of the detection; acquire, through the second wireless communication circuit, data corresponding to the identification information from an external electronic device; and transmit, through the first wireless communication circuit, the acquired data to the third wireless communication circuit included in the cover device.

A wireless communication chip includes an analog front-end circuit and a baseband circuit. The analog front-end circuit includes a first transceiver circuit and a second transceiver circuit, wherein the first transceiver circuit is arranged to transmit or receive signals through a first antenna, and the second transceiver circuit is arranged to transmit or receive signals through a second antenna. The baseband circuit is arranged to control the first transceiver circuit to use a first band or a second band for communication, and/or to control the second transceiver circuit to use the first band or the second band for communication. The baseband circuit controls the first transceiver circuit and the second transceiver circuit so that the analog front-end circuit alternately performs 2T2R in the first band and 2T2R in the second band.

An electronic device may include at least one communication processor, at least one radio frequency integrated circuit (RFIC) configured to provide a radio frequency (RF) signal based on a signal from the at least one communication processor, and a first RF circuit and a second RF circuit configured to process and provide the RF signal. The at least one communication processor may be configured to control at least part of the electronic device to allow the first RF circuit to process at least one first RF signal provided from the RFIC, in an over-temperature state, identify that a sum of times when the first RF circuit processes the at least one first RF signal is at least the value of a designated period, and based on the sum of the times when the first RF circuit processes the at least one first RF signal being at least the value of the designated period, stop use of the first RF circuit and control at least part of the electronic device to allow the second RF circuit to process at least one second RF signal provided from the RFIC. Other various embodiments are possible as well.

A radio frequency front end circuit for a multimode transceiver has a first operating mode transmit input port, a second operating mode transmit input/receive output port, and a hybrid first and second operating mode receive output port. A first switch network has one or more switch elements together selectively connecting the first operating mode transmit input port, the second operating mode transmit input/receive output port, and the hybrid first and second operating mode receive output port to a coexistence filter first port. A second switch network has one or more switch elements that together selectively connect a coexistence filter second port to an antenna port.

A radio frequency front end circuit for a multimode transceiver has a first operating mode transmit input port, a second operating mode transmit input/receive output port, and a hybrid first and second operating mode receive output port. A first switch network has one or more switch elements together selectively connecting the first operating mode transmit input port, the second operating mode transmit input/receive output port, and the hybrid first and second operating mode receive output port to a coexistence filter first port. A second switch network has one or more switch elements that together selectively connect a coexistence filter second port to an antenna port.

An electronic device is provided. The electronic device includes a foldable housing, a communication circuit, a first transmission/reception circuit configured to transmit/receive a signal in a first frequency band, a first antenna electrically connected to the first transmission/reception circuit, and disposed on a portion of the first side member, a second transmission/reception circuit configured to transmit/receive a signal in a second frequency band different from the first frequency band, a second antenna electrically connected to the second transmission/reception circuit, and disposed on a portion of the first side member, a sensor configured to detect a contact of a user's body portion, and a processor. The processor may be configured to cause the first transmission/reception circuit to be electrically connected to the second antenna such that the signal in the first frequency band is transmitted/received through the second antenna when the contact of the user's body portion is detected by the sensor.

An antenna apparatus having an antenna. The antenna comprises a first radiator section and a second radiator section coupled to each other, and a third radiator section, a fourth radiator section, and a fifth radiator section that are distributed on a same side of the first and second radiator sections, wherein the third radiator section is coupled to a junction of the first and second radiator sections and is grounded, and the fourth and fifth radiator sections are separately disposed on two sides of the third radiator section, wherein the fourth radiator section is grounded by a first switch, and the fifth radiator section is grounded by a second switch.

An antenna apparatus having an antenna. The antenna comprises a first radiator section and a second radiator section coupled to each other, and a third radiator section, a fourth radiator section, and a fifth radiator section that are distributed on a same side of the first and second radiator sections, wherein the third radiator section is coupled to a junction of the first and second radiator sections and is grounded, and the fourth and fifth radiator sections are separately disposed on two sides of the third radiator section, wherein the fourth radiator section is grounded by a first switch, and the fifth radiator section is grounded by a second switch.