Investigation of microstrip band-pass filters based on 2D electromagnetic crystal

Electrodynamic numerical analysis of 3D models was used in order to study microstrip filters of 4-th and 6-th order. When constructing 2D microwave structures, irregular resonators with Π-shaped slit in a grounded strip conductor were used. The band-pass filters tuned by manual parametric synthesis have high frequency-selective properties, including extended high frequency stopband.