RFDIP Multilayer Ceramic Diplexers Walsin Multilayer Ceramic Diplexers are designed to operate multiple transmitters on a single RF antenna. These RFDIP multilayer ceramic diplexers feature low insertion loss, suppressed high attenuation on the 2nd harmonic, and Low-Temperature Co-fired Ceramic (LTCC) process. The RFDIP ceramic diplexers offer a frequency range varying between 2.4GHz and 5.95GHz. These RFDIP ceramic diplexers are used in ISM 2.4 / 5GHz band RF and Wi-Fi 802.11a/b/g/n applications.