Design and Analysis of Tri-Band Stop FSS for Medical Instruments Shielding Application

This article focuses on a polarization - freelance Tri- stop band FSS in case of sensible medical instrument approach. FR-4 substrate is used to construct Frequency Selective Surface (FSS) structure, using that behavior FSS act as a band stop filter for the frequencies of 2.4 GHz, 1.8GHz and 5GHz. The three band-stop frequency area unit severally controlled by standardization the building block mathematical framework. The building block manifest a consistent form in order to alter constant affording in each mode of TE and atomic number (0°_60°) for the wave incident and also the stability of the system at different angles are verified. The simulation result is analyzed for the TE and TM mode polarization coefficient and Transmission coefficient for the incident angle varies from 0° to 60°. The high frequencies stop band response achieved by increasing the angle of incident. The planned building block configuration is created by the use of CST studio software. The characteristics of tri band FSS is confirmed by matching it with the simulation result.