Abstract: An adapter for connecting two multi-polar signal transmission lines that has a shielded housing. The housing contains a planar filter which carries capacitors corresponding to the number of signal transmission lines together with separate signal-electrodes and common ground-electrodes, whereby the ground-electrodes are placed o the side of the planar filter. Each signal-electrode has a contact surface to make connection to the corresponding transmission lines. The housing has two identical shell-shaped middle pieces and two collars. One end of each middle piece is soldered to a respective collar, and the two middle pieces are soldered together at a coupling location that forms a support to which the filter is soldered.

Abstract: A multipole connector includes a housing having at least one conductive shell. Signal lines with pins extend through the housing, especially for carrying digitized signals. A base plate is disposed in the housing and is formed of aluminum-oxidic or ferromagnetic ceramic. A planar filter is mounted on the base plate in the housing. The planar filter has one capacitor for each of the pins of at least some of the signal lines. The capacitors are formed by a base electrode applied to the base plate, a dielectric layer applied onto the base electrode, and a counter electrode applied onto the dielectric layer. One of the electrodes is continuously constructed as a ground electrode and is conductively connected to the housing. The other of the electrodes is subdivided into individual signal electrodes and is conductively connected to the signal lines. The base plate, the dielectric layer and at least one of the electrodes have recesses formed therein forming ducts for the signal lines.