Patent ID: 9166264
Filing Date: 2015-10-20
Classification: H01P

Abstract:
1. A dual mode filter comprising an input port (Pin) and an output port (Pout), the dual mode filter also comprising a substrate of a non-conducting material and a first conductor and a second conductor, both of which first and second conductors connect the input port (Pin) to the output port (Pout), with the first and the second conductors being arranged on or in the substrate, the first conductor being longer than the second conductor by at least 50%, in which dual mode filter the first conductor comprises a perturbation element at a central position of the conductor, wherein the first conductor is arranged between the input port (Pin) and the output port (Pout) with a number of sections, at least some of which are parallel to each other, and in that the sections are arranged so that the current in the two most adjacent parallel ones of the sections always flows in the same direction, with the first conductor being arranged between the input port (Pin) and the output port (Pout) in such a manner that the first conductor exhibits at least one crossing of two of its sections, said at least one crossing being accomplished by means of vias in at least one of said two sections.