Abstract: A battery is provided. The battery includes a negative electrode including a first coating portion coated with a negative electrode active material and a first uncoated portion disposed adjacent to the first coating portion, a positive electrode disposed to face the negative electrode and including a second coating portion coated with a positive electrode active material and a second uncoated portion disposed adjacent to the second coating portion, a first separator disposed between one surface of the negative electrode and one surface of the positive electrode, and a second separator disposed on another surface of the negative electrode. The positive electrode, the negative electrode, and the at least one of the first separator and the second separator may be prepared in a roll shape formed by winding.

Abstract: An electronic device including an antenna is provided. The electronic device includes a housing, a radio frequency (RF) circuit located within the housing and configured to output a first RF signal and a second RF signal, at least one processor located within the housing and configured to electrically connect to the RF circuit, a first radiating body electrically connected to the RF circuit, a second radiating body electrically connected to the first radiating body, and an RF switch located within the housing and electrically connected to the processor and the second radiating body, wherein the at least one processor is further configured to control the RF switch to emit at least one of the first RF signal and the second RF signal output from the RF circuit to at least one of the first radiating body and the second radiating body.

Abstract: An electronic device including an antenna is provided. The electronic device includes a housing, a radio frequency (RF) circuit located within the housing and configured to output a first RF signal and a second RF signal, at least one processor located within the housing and configured to electrically connect to the RF circuit, a first radiating body electrically connected to the RF circuit, a second radiating body electrically connected to the first radiating body, and an RF switch located within the housing and electrically connected to the processor and the second radiating body, wherein the at least one processor is further configured to control the RF switch to emit at least one of the first RF signal and the second RF signal output from the RF circuit to at least one of the first radiating body and the second radiating body.

Abstract: An electronic device is provided. The electronic device includes a body including a communication module, and at least one first conductive contact configured to transmit electrical signals to and receive electrical signals from the communication module; and at least one strap removably connected to the body, the at least one strap including an antenna therein, and at least one second conductive contact configured to transmit electrical signals to and receive electrical signals from the antenna, the one strap being configured to removably connect to the body, such that at least a portion of the at least one first conductive contact is electrically connected to the at least one second conductive contact.