Designing and Simulating of 1.8 GHz Ceramic Monoblock Duplexer

A kind of new out-step ceramic monoblock duplexer composing of out-step resonance block and two capacitive coupling band-pass filters, the filters are constituted with quarter wave-lengths coaxial dielectric resonators. According to the request, Discussed was the out-step resonance block how to influence on the function parameter of duplexer. Dielectric band-pass duplexer was simulated by the EDA software and gets a more satisfied result.