Patent ID: 8018306
Filing Date: 2011-09-13
Classification: H01P

Abstract:
1. A resonator having a three-dimensional DGS in a transmission line, comprising: a substrate installed at a center of the resonator floating in air through supporting members installed on both ends of the substrate; the transmission line for transmitting signals installed on an upper surface of the substrate; an upper ground plane member installed on the upper surface of the substrate with a predetermined interval from the upper surface of the substrate, wherein a DGS pattern with a predetermined shape is formed on each portion of a body of the upper ground plane member symmetrically with respect to the transmission line to form the resonator; a lower ground plane member installed on a lower surface of the substrate with a predetermined interval from the lower surface of the substrate, wherein a DGS pattern with a predetermined shape is formed on each portion of a body of the lower ground plane member symmetrically with respect to the transmission line to form the resonator; an upper cover installed closely contacting the upper surface of the upper ground plane member to seal an upper opening of the DGS pattern formed on the upper ground plane member and to protect the upper ground plane member at the same time; and a lower cover installed closely contacting the lower surface of the lower ground plane member to seal a lower opening of the DGS pattern formed on the lower ground plane member and to protect the lower ground plane member at the same time.