Abstract: The invention relates to a method of manufacturing an inner conductor of a resonator, and an inner conductor of a resonator comprising a first end and a second end, which is free. The inner conductor is deep-drawn from a uniform, electrically conductive blank.

Abstract: The invention relates to a method of manufacturing an inner conductor of a resonator, and an inner conductor of a resonator comprising a first end and a second end, which is free. The inner conductor is deep-drawn from a uniform, electrically conductive blank. (FIG.

Abstract: The invention relates to an arrangement for fastening an inner conductor of a resonator structure and to a method for fastening an inner conductor of a resonator structure to a fastening surface structure. The arrangement comprises a fastening surface structure, which in turn comprises an edge of an opening and the opening defined by the edge, the opening being formed through the fastening surface structure. In addition, the arrangement comprises an inner conductor of a resonator structure arranged at the opening formed through the fastening surface structure, the inner conductor comprising an inner space at least on the portion of the conductor that faces the fastening surface structure, which inner space is defined by the wall of the inner conductor which extends into the opening formed through the fastening surface structure.

Abstract: The invention relates to a resonator filter comprising a housing structure (10), at least one resonator conductor (20) in the housing structure, and a regulating means (30) for regulating the frequency band of the resonator filter. The regulating means (30) is substantially transverse with respect to the propagation direction of the resonator conductor so that the regulating means (30) forms at least one turn around the resonator conductor (20) transversely to the propagation direction of the resonator conductor.

Abstract: The invention relates to a filter and a frequency tuning element. The filter comprises a shell construction (2a to 2d) of conductive material with at least one section (14 to 16) and in the shell construction (2a to 2d) at least one resonator (17 to 19) of conductive material in said at least one section (14 to 16) for forming at least one resonance circuit (11 to 13). In the filter (1) the resonator (18) comprises as its extreme ends a base (18a) and a second end (18b), in said filter (1) the base (18a) of the resonator (18) being fastened to the shell construction (2a to 2d) and the second end (18b) of the resonator (18) being directed elsewhere towards the shell construction (2a to 2d) at a distance therefrom, the resonator (18) comprising a means (32) which directs its surface towards the shell construction (2a to 2d) and increases the cross-sectional area of the resonator to increase the capacitance between the resonator (18) and the shell construction (2a to 2d).