AT RF/Microwave Attenuators & Design Kits KYOCERA AVX AT RF/Microwave Attenuators feature a thin-film design and ±0.5dB frequency response. These attenuators are constructed with aluminum nitride (AIN) in a standard EIA 0603 case size. The series offers a balanced Pi design that provides even current distribution and attenuation characteristics from DC to 20GHz. The attenuators are manufactured with high-quality materials for reliable and repeatable performance. KYOCERA AVX AT attenuators are ideal for impedance matching, input padding, signal level tuning, and many other critical RF and microwave applications. Typical applications include telecommunications, satellite communications, cellular base stations, microwave radio, military/aerospace, as well as test and measurement.