A Simple Method to Design Dielectric Resonator-Based Filters and Diplexers Using Implicit Space Mapping Technique

We present the design of a six pole Chebyshev filter and a cascaded quadruple dielectric resonator (DR) filter using space mapping technique. Implicit space mapping technique is used throughout and the design emerges within few iterations in both the cases. Finite element method based HFSS is used in constructing the fine model and Agilent ADS is used in constructing the coarse model. Fine details such as tuning screws are included in the fine model. The same technique is also applied to a DR-based diplexer and is explained. In all the cases, the results obtained with the hardware match well with the analyzed results. The same procedure can be applied in designing much more complex structures such as multiplexers. (c) 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:204-216, 2014.