Patent ID: 6329889
Filing Date: 2001-12-11
Classification: H01P

Abstract:
A high-frequency filter comprising:a first resonator and a second resonator such that the first resonator has an inner conductor and the second resonator has an inner conductor and the inner conductors are surrounded by an electrically conductive casing having compartments,a coupling element to realize electromagnetic couplings between said first and second resonators,within said coupling element including an insulating part,within said coupling element a first conductor having a first end and a second end outside the insulating part, and whereinthe portion between the first end and second end of the first conductor is wholly surrounded by the insulating part so that the first conductor and the insulating part are included in an integrated component having a first side andsaid component is arranged to be attached at said first side inside thethe portion on a first side of said portion and outside the insulating part is located in the same casing compartment with the inner conductor of the first resonator, and the portion on a second side of said portion and outside the insulating part is located in the same casing compartment with the inner conductor of the second resonator;wherein the insulating part is flat, having in a first and second mutually perpendicular directions a dimension which is substantially greater than the dimension of the insulating part in a third direction perpendicular to said two other directions, and the portion of the first conductor which is wholly surrounded by the insulating part is substantially perpendicular to said third direction.