Design and Fabrication of a Low-Pass Filter based on a Microstrip Resonator for Microwave Applications

This paper presents design, implementation and performance evaluation of a 2.8 GHz low-pass filter using microstrip resonator. The 3D planar electromagnetic simulator ADS Momentum is used for the layout design and the performance characterization. This filter has a Chebyshev response with 0.02 dB of ripple and a cutoff frequency located at 2.8 GHz. The attenuation of this filter is measured at 3.3 GHz. Theoretical frequency response from analytical calculations in MATLAB and ideal transmission line simulation in ADS are almost identical. The filter finds its application in telecommunication systems. Designed filter has been fabricated and measurements greatly coincide with simulation results.