A dipole antenna is a simple type of radio antenna that consists of two conductive elements, usually metal rods, arranged in a straight line. It is designed to transmit and receive electromagnetic waves, making it a popular choice for various communication applications. The length of each element is typically a half-wavelength of the frequency it is intended to operate on, which helps optimize its performance. Dipole antennas can be oriented horizontally or vertically, depending on the desired radiation pattern. They are often used in amateur radio, broadcasting, and wireless communication systems due to their ease of construction and effectiveness. Their design allows for a balanced feed, making them efficient for many applications.