Design of Multifunctional Wideband Microstrip Bandstop Filter

Abstract

This paper introduces a multifunctional wide band microstrip bandstop filter at X-band and C-band communication. The proposed bandstop filter has wide bandwidth from 6 to 9 GHz. This can be used for vehicular communication due to its compact size, light weight and excellent performance. This multifunctional wide band microstrip filter is design using transmission line with four arrow shaped strips inserted between square ring stub on top side and ground plane at the bottom side. By varying dimension of four arrow-shaped strips in square-ring stub, operating frequency can be varied. The proposed filter is fabricated using FR4 substrate having a dielectric constant of 4.4 and with size 10×15×0.8 mm3.

Keywords: microstrip, bandstop filter, multifunctional, vehicular communication

JEL Classification: Y60