Terahertz metamaterial filter based on combinatory structures of slots and slits

Abstract

Filter transform technique from a bandpass filter to bandstop filter is presented. By introducing the slits between the slots, original bandpass characteristics of the filter consisting of slots is changed to bandstop characteristics. Additional seriesconnected capacitance due to the slits plays a key role in the present filter transform. Electromagnetic simulation is carried out to compare the filter characteristics of the slot filters with and without slits.