Design of Narrow Band Terahertz Waveguide Filters Including Power Handling Analysis

Filters possess vital role in terahertz communication system. This paper presents design of narrowband waveguide filters in Y band of terahertz including their power handling analysis. Three filters have been designed and simulated using industry standard EM simulator, High Frequency Structure Simulator (HFSS). All the filters are centered at 0.35 THz and have 7 GHz bandwidth. S-parameters of the simulated filters depict that these filters can be fabricated using any micromachining technique. Power handling analysis of the filters is carried out and it is presented that electric field inside the filters increases with the increase in source power and follows a parabolic path.