8-order filter based on 2-D photonic crystal with dual-mode microstrip resonators

Belyaev, BA; Khodenkov, SA XX INTERNATIONAL SCIENTIFIC CONFERENCE RESHETNEV READINGS-2016, 255 10.1088/1757-899X/255/1/012020 2017

The design of 8-order band-pass filter based on 2-D photonic crystal is suggested. Strip conductors in all dual-mode resonators are in the form of «irregular» rectangular frame with a gap and are connected at certain points with the ground. At optimal placement of such resonators on a substrate attenuation pole is observed on the amplitude-frequency characteristic of the filter, near low and high bandwidth slope that significantly improves its frequency-selective properties. The change of gap between input and output resonators allows to control the frequency of these poles.