An electronic device comprising: an antenna (530, 630); a transceiver (520, 620) configured to transmit and/or receive a signal via the antenna (530, 630); a tunable radio frequency, RF, circuit (510, 610) configured to tune a signal strength of a frequency band of the signal between the antenna (530, 630) and the transceiver (520, 620); and at least one processor operatively coupled with the transceiver (520, 620) and the tunable RF circuit (520, 620), wherein the tunable RF circuit (520, 620) includes: a switch configured to switch the transmitting and the receiving of the signal; a low noise amplifier, LNA, configured to amplify the signal in a reception path for receiving the signal from the switch to the transceiver; a power amplifier, PA, configured to determine a strength of the signal in a transmission path for transmitting the signal from the transceiver (520, 620) to the switch; a fixed filter disposed in a signal line connecting the switch and the antenna (530, 630), configured to pass signals in a first frequency band, and attenuate signals in a second frequency band; at least one tunable filter divided from the signal line and configured to pass signals in at least a portion of the second frequency band, wherein the portion of the second frequency band is tunable; and at least one detector configured to detect a signal strength passing through the at least one tunable filter; wherein the at least one processor is configured to determine a frequency band to be passed by the at least one tunable filter based on the signal strength detected by the at least one detector, and tune the at least one tunable filter to pass the determined frequency band. an antenna (530, 630); a transceiver (520, 620) configured to transmit and/or receive a signal via the antenna (530, 630); a tunable radio frequency, RF, circuit (510, 610) configured to tune a signal strength of a frequency band of the signal between the antenna (530, 630) and the transceiver (520, 620); and at least one processor operatively coupled with the transceiver (520, 620) and the tunable RF circuit (520, 620), wherein the tunable RF circuit (520, 620) includes: a switch configured to switch the transmitting and the receiving of the signal; a low noise amplifier, LNA, configured to amplify the signal in a reception path for receiving the signal from the switch to the transceiver; a power amplifier, PA, configured to determine a strength of the signal in a transmission path for transmitting the signal from the transceiver (520, 620) to the switch; a fixed filter disposed in a signal line connecting the switch and the antenna (530, 630), configured to pass signals in a first frequency band, and attenuate signals in a second frequency band; at least one tunable filter divided from the signal line and configured to pass signals in at least a portion of the second frequency band, wherein the portion of the second frequency band is tunable; and at least one detector configured to detect a signal strength passing through the at least one tunable filter; a switch configured to switch the transmitting and the receiving of the signal; a low noise amplifier, LNA, configured to amplify the signal in a reception path for receiving the signal from the switch to the transceiver; a power amplifier, PA, configured to determine a strength of the signal in a transmission path for transmitting the signal from the transceiver (520, 620) to the switch; a fixed filter disposed in a signal line connecting the switch and the antenna (530, 630), configured to pass signals in a first frequency band, and attenuate signals in a second frequency band; at least one tunable filter divided from the signal line and configured to pass signals in at least a portion of the second frequency band, wherein the portion of the second frequency band is tunable; and at least one detector configured to detect a signal strength passing through the at least one tunable filter; wherein the at least one processor is configured to determine a frequency band to be passed by the at least one tunable filter based on the signal strength detected by the at least one detector, and tune the at least one tunable filter to pass the determined frequency band.