A Duroid-based planar EBG cavity resonator filter with improved quality factor

A high-Q Duroid-based planar electromagnetic bandgap (EBG) cavity resonator filter has been designed, fabricated, and tested. It was implemented in Rogers Duroid 5880 with standard board fabrication techniques. This filter provides a measured Q of 844 and a 0.91% bandwidth passband response at 10.63 GHz with a corresponding insertion loss of -2.76 dB.