MAGNETICALLY TUNABLE FILTER COMPRISING COPLANAR LINES

摘要

The invention relates to a magnetically tunable filter (1) comprising a filter housing (2) and two tunable resonator spheres (3a, 3b) which are made of magnetizable material and are disposed next to one another in two filter arms (4a, 4b). Each filter arm (4a, 4b) is provided with a coplanar line (7) that is arranged on a substrate layer and extends in the direction of an electrical terminal (6) as well as a joint coupling hole (8), by means of which the two filter arms (4a, 4b) are interconnected. The spheres do not necessarily have to be in visual contact. One respective resonator sphere (3a, 3b) is placed on each of the two sides of the coupling hole (8) within the filter arms (4a, 4b).