Patent ID: 6670869
Filing Date: 2003-12-30
Classification: F16C,H01P

Abstract:
A cavity filter for electromagnetic waves, comprising:a first casing element; a second casing element 43, which together with the first casing element defines a cavity; a tuner of dielectric material; a resonator of dielectric material which is provided with a through-hole to allow the tuner to move in and out of the resonator; a tube-shaped first support of dielectric material on a first side of the resonator; a movable dielectric spindle, on which the tuner is arranged; where the spindle is mounted by means of at least two sprung tongues, each of which has a stud with an at least partially spherical free end, where at least two of the free ends are in contact with a sliding surface along which said spindle moves as said tuner moves in and out of said resonator.