An UWB Band-Pass Filter Using Plasmonic Series and Parallel SRRs with Coupling Gaps

This article presents the design and analysis of the nanoplasmonic metal insulator metal (MIM) waveguide based ultra wide band (UWB) band-pass filter (BPF) using series and parallel square ring resonators (SRRs) with coupling gap (g). The proposed device behaves as an UWB bandpass character due to the coupling gap between resonators and fed-line. The proposed UWB filter aiming, transmitting the UWB pass band signals from 1235.74 nm to 1942.16 nm wavelengths with a return loss of higher than 10dB.