Patent ID: 7456712

Claim:
A dielectric resonator circuit comprising: a plurality of dielectric resonators, each comprising a body formed of a dielectric material; a housing enclosing said resonators; a cross coupling element for permitting electromagnetic coupling between a first one and a second one of said resonators, said cross coupling element having a first end positioned adjacent said first one of said resonators and a second end positioned adjacent said second one of said resonators; a tuning element for moving said first end of said cross coupling element relative to said first one of said resonators, said tuning element comprising a resilient strip suspended from said housing such that a portion of said strip is unsupported, wherein said first end of said cross coupling element is in contact with said unsupported portion of said strip such that flexing of said resilient strip will cause displacement of said first end of said cross coupling element relative to said first resonator; and a post having a longitudinal axis extending through a hole in said housing such that a proximal end of said post is outside of said housing and a distal end of said post is in contact with said unsupported portion of said strip inside said housing, whereby movement of said post in at least one direction along said longitudinal axis will exert a force on said resilient strip causing it to flex, whereby said first end of said cross coupling element is moved.