Patent ID: 6381478
Filing Date: 2002-04-30
Classification: H01P,Y10S

Abstract:
A high-frequency circuit element, comprising at least one solid disk resonator of elliptic shape having a smooth contour part and two input-output lines, wherein each of the input-output lines has a respective side edge and a part of the respective side edge is located along a corresponding coupling part on the respective peripheral part of the at least one resonator and spaced from the respective peripheral part of the at least one resonator by a gap part therebetween so as to reduce external Q to increase degree of input-output coupling, and the respective coupling parts are in the vicinity of intersections of the periphery of the at least one resonator with the major axis of the ellipse and the minor axis of the ellipse respectively and are located at the positions about 90Â° apart from each other with respect to the center of the at least one resonator.