An electronic device according to an exemplary embodiment of the disclosure may include a first electrical element and a second electrical element, and a flexible circuit board configured to transmit signals between the first electrical element and the second electrical element and including a first part, a second part, and a third part positioned between the first part and the second part, in which the flexible circuit board includes a first signal line extending from the first part to the second part, a second signal line extending from the first part to the second part, a first filter included in the first part and including a first conductive pattern electrically connected to the first signal line, and a second filter included in the second part and including a second conductive pattern electrically connected to the second signal line, and in which the first filter and the second filter are configured to have designated electromagnetic isolation between the first signal line and the second signal line. Various other embodiments are possible.