High Frequency Dualband Microstrip Bandstop Filter

In this paper the task is to make a bandstop filter, we used Sonnet as is most supported in simulating bandpass filter projects. The project was designed to have two ports that are located at the left and the right side of the project. The geometry of the project consists of small thin metal lines that are almost symmetrical in position, with the main part of the design that consists of two horizontal parts connected by two vertical parts creating a ‘L’ shaped design. It operates at 8.5 to 11.7 GHz with a minimum S12 at -37,34 dB and on S11 at almost 0 dB. Overall features of the design are presented in the tables. Complete design and simulation were performed in Sonnet software. This design has benefits over the other designs since it is smaller in size but is performing as other bandpass filters on market