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This work presents novel filter topologies implemented in microstrip technology. The topologies combine printed line resonators with non resonating nodes (NRN) to implement transmission zeros in a very flexible way. Depending on the number of resonators and NRN, the filtering response exhibits a single transmission zero either below or above the passband, or two transmission zeros, one at each side...
This work presents a new topology for the design of bandpass elliptic filters employing inductive windows and dielectric objects. The proposed filtering structure combines, for the first time, the modified TE102 resonating mode with the modified TE201 mode. The TE201 mode is excited by placing a wide dielectric post inside a waveguide cavity. The main advantage of the new topology is that two transmission...
We present a novel efficient technique for the analysis of inductive structures containing metallic and dielectric obstacles, using a Surface Integral Equation (IE) formulation. Using the Surface Equivalence Principle, the main problem is divided into two subproblems. The first one is formulated with the parallel plate waveguide (PPW) Green's functions, and the second with the Green's functions of...
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