Coplanar waveguide stub filter at1.8GHz, 3rd order / Amir Johari Mohamed

This paper deals with the design of 3 order coplanar waveguide stub filter. The filter is centered at frequency 1.8GHz. The stub filter is designed on FR4 substrate with dielectric permittivity er=5.4 and substrate thickness H= 1.6mm. Simulations parts are proposed right the way through the paper in order to demonstrate the possibilities/potential offered by theoretical concept idea. Besides, optimization procedure is needed to tune the filter theoretically, such a very fast design method is necessary. Simulated and experimental results are presented and compared throughout the report in order to validate the idea.