Antenna parts are essential components for the proper functioning of an antenna system. These parts include the antenna itself, which is responsible for transmitting and receiving electromagnetic signals. Additionally, baluns are crucial components that help to match the impedance between the antenna and the transmission line, ensuring efficient signal transfer. Baluns also help to eliminate common mode currents and reduce signal loss. Overall, understanding the different antenna parts and the role of baluns is key to optimizing the performance of an antenna system.