A Reconfigurable Defected Ground Structure Resonator Based on Coplanar Waveguide

A reconfigurable defected ground structure (DGS) resonator based on coplanar waveguide (CPW) technology is being proposed. The reconfigurable resonator leads to generate multiple stopbands at arbitrary frequencies. Basically, the design is based on slot defect which is thereby created on the ground plane. Here, two different states of diode configuration are being proposed, and in particular state, multiple transmission zeros are achieved in the 0–12 GHz frequency range. To identify the transmission zeros, the slotline design equations are used. Moreover, the conventional circuit parameter extraction method is used to extract the equivalent circuit diagram of each state.