A two-path multimode bandpass filters using the nonradiative dielectric (NRD) waveguide technology

A new class of two-path multimode bandpass filters are proposed in this paper for stringent requirement of NRD integrated circuits. Rigorous field-theoretical analysis and CAD procedure are developed to-determine frequency response of the proposed structure. It is shown that the two-path multimode filter presents a better electrical performance over its one-path counterpart. In addition, the proposed geometry provides also more freedom of choosing filter parameters in the design and optimization of bandpass filters.<>