RF Components TDK RF Components include a large selection of antennas, diplexers, triplexers, baluns, filters, and couplers designed for cellular phones, wireless LAN, and BLUETOOTH®. To meet the ever-increasing demand for compact, slim, lightweight, and high-performing components, TDK RF components make full use of material technologies such as ferrites and ceramics and thin-film technologies. TDK RF components provide leading-edge miniaturization technology while providing exceptional electrical characteristics and are recommended by leading WLAN chipset manufacturers for 2.4GHz and 5GHz WLAN.