Design and Simulation of 2.4 GHz Microstrip Parallel Coupled Line Low Pass Filter for Wireless Communication System

Abstract

A low pass filter only allows signals below its cut-off frequency to pass while attenuating other signals with frequencies higher than those of the filter. Several interesting techniques were proposed by researchers to design low pass filter. However, majority of those filters present difficulties of integration with other elements of electronics gadgets, high cost, high power consumption, large size and low-frequency application. Consequently, the current study focused on design and simulation of a parallel coupled-line microstrip low pass filter. Computer Simulation Technology (CST) microwave software was used for the design and simulation of the filter. Results Analyses were made and the resulting frequency responses were plotted using a sigma plot. It was concluded that the proposed microstrip filter presents solutions to the issues observed in the former designs.