Samsung Electronics Co., Ltd.

Sung-Hwan Ko

Ki-Won Kim

Jung-Ho Park

Ju-Hee Chang

Sung-Hoon Jeong

Young-Hwan Jung

Man Seob Kim

Suk-Chan Hong

An electronic device is provided. The electronic device includes a communication module and a processor electrically connected to the communication module, wherein the communication module includes an antenna configured to transmit and receive a communication signal, a sensor configured to measure an impedance of the antenna, and a first matching circuit and a second matching circuit electrically connected to the antenna, and the processor is configured to receive information on the impedance of the antenna from the sensor, check control information on at least one of the first matching circuit and second matching circuit corresponding to the impedance of the antenna at least partially based on the received information on the impedance of the antenna, and transmit control information generated at least partially based on the checked control information to at least one of the first matching circuit and the second matching circuit corresponding to the control information.

Method for performing communication and electronic device supporting same

An apparatus and method for controlling a multi-band antenna in a mobile communication terminal are provided. An apparatus for controlling a multi-band antenna in a mobile communication terminal includes a modem, an antenna unit, a Radio Frequency (RF) processing unit, and a switch module. The modem outputs at least one control signal corresponding to a target frequency band. The antenna unit changes a resonance frequency of the antenna according to the at least one control signal. The RF processing unit includes a plurality of transmission/reception (TX/RX) paths and processes TX/RX signals. The switch module connects the antenna to one of the TX/RX paths according to the at least one control signal.

Method and apparatus for controlling multi band antenna in mobile communication terminal

An apparatus and a method for reducing cross-talk between audio channels in a mobile terminal are provided. The apparatus includes an ear jack, a radio signal tuner, a baseband, and a switching unit. The ear jack includes a common port for a reference potential of an earphone and a radio signal. The radio signal tuner processes a radio signal input via the common port. The baseband determines an on/off state of a radio reception function to output a control signal. The switching unit connects the common port of the ear jack to one of a ground and the radio signal tuner according to the control signal.

Apparatus and method for reducing cross-talk between audio channels in a mobile terminal

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Seoul, South Korea

Sung-Hwan Ko