MICROWAVE RESONATOR HAVING DEFECTED GROUND STRUCTURE ON DIELECTRIC

摘要

The present invention increases the bandwidth of a resonator by inserting an electronic device into a coupled line structure in which a pair of coupling lines are coupled to a transmission line and coupled to a resonator having a defect structure (DGS) etched in the ground plane of the dielectric. It relates to a microwave DGS resonator that can easily control the loss and resonant frequency.;The present invention provides a dielectric substrate comprising a dielectric material; A conductive film coated on one surface of the dielectric substrate, the ground plane having a linear gap and a pair of etching portions interconnected by linear gaps to form electric field dense portions at both ends thereof; A transmission line disposed on a surface opposite to the ground plane of the dielectric substrate in a direction perpendicular to the linear gap and formed of a microstrip to which a transmission signal is applied at one end thereof; And a pair of island-shaped coupling lines coupled on a surface opposite to the ground plane of the dielectric substrate in parallel with the transmission lines.;DGS, resonator, coupling line, Q factor, resonant frequency