Design of Microstrip Coupled Line Bandpass Filter Using Synthesis Technique

Abstract

Abstract-In this Paper, aim is to achieve a narrow bandwidth filter. For that coupled line filter is good choice. Coupled-line filter is designed on microstrip for its compactness. Microstrip dimension are calculated using synthesis technique formula. A Coupled-Line Microstrip Filter is designed for centre frequency 2.4GHz and it is made up of FR-4 material having permittivity Єr=4.4. Coupled line filter demonstrate the fourth order of the Chebyshev elements and its response corresponds to bandpass filter. The geometry is analysed by using Computer Stimulation Techniques (CST) software.