This dielectric resonator cavity filter (DRCF) is designed for selection of certain frequencies. It is suitable for use in many applications such as microwave telecommunication. It provides multiple options of frequencies for users to choose from.

• For microwave telecommunication, radar, electronic counterwork, aviation and spaceflight, navigation, etc.
• 3G: 1,920-2,170MHz.
• DCS: 1,710-1,825MHz.
• GSM: 885-954MHz.