An electronic device comprising: a housing, wherein the housing includes: a cover glass that exposes at least a portion of a display; and a rear housing coupled with the cover glass, wherein the rear housing includes a first conductive region, a second conductive region physically spaced from the first conductive region, and an insulating material interposed between the first conductive region and the second conductive region; a printed circuit board positioned within the housing; a wireless communication circuit positioned on the printed circuit board and electrically connected with the first conductive region; a grip sensor circuit positioned on the printed circuit board and electrically connected with the first conductive region; and a connection member interposed between the printed circuit board and the rear housing, and electrically connecting the first conductive region and the second conductive region, wherein the wireless communication circuit is configured to: feed the first conductive region; and transmit or receive a signal in a specified frequency band based on a first electrical path formed through the first conductive region, the connection member, and the second conductive region, and wherein the grip sensor circuit is configured to sense whether a user approaches the electronic device or whether the user touches the housing, based on a capacitance on a second electrical path connected to the grip sensor circuit from the first conductive region and the second conductive region through the connection member, wherein the connection member includes a first metal pad connected with the first conductive region and a second metal pad connected with the second conductive region, and characterized in that the connection member includes a varistor (261, 262) interposed between the first metal pad and the second metal pad. a housing, wherein the housing includes: a cover glass that exposes at least a portion of a display; and a rear housing coupled with the cover glass, wherein the rear housing includes a first conductive region, a second conductive region physically spaced from the first conductive region, and an insulating material interposed between the first conductive region and the second conductive region; a printed circuit board positioned within the housing; a wireless communication circuit positioned on the printed circuit board and electrically connected with the first conductive region; a grip sensor circuit positioned on the printed circuit board and electrically connected with the first conductive region; and a connection member interposed between the printed circuit board and the rear housing, and electrically connecting the first conductive region and the second conductive region, wherein the wireless communication circuit is configured to: feed the first conductive region; and transmit or receive a signal in a specified frequency band based on a first electrical path formed through the first conductive region, the connection member, and the second conductive region, and wherein the grip sensor circuit is configured to sense whether a user approaches the electronic device or whether the user touches the housing, based on a capacitance on a second electrical path connected to the grip sensor circuit from the first conductive region and the second conductive region through the connection member, wherein the connection member includes a first metal pad connected with the first conductive region and a second metal pad connected with the second conductive region, and characterized in that the connection member includes a varistor (261, 262) interposed between the first metal pad and the second metal pad. feed the first conductive region; and transmit or receive a signal in a specified frequency band based on a first electrical path formed through the first conductive region, the connection member, and the second conductive region, and wherein the grip sensor circuit is configured to sense whether a user approaches the electronic device or whether the user touches the housing, based on a capacitance on a second electrical path connected to the grip sensor circuit from the first conductive region and the second conductive region through the connection member, wherein the connection member includes a first metal pad connected with the first conductive region and a second metal pad connected with the second conductive region, and characterized in that the connection member includes a varistor (261, 262) interposed between the first metal pad and the second metal pad.