A wafer assembly for an electrical connector, and method for making, that has a first and second wafers configured to interlock with one another. Each of the wafers has at least one contact that has a body portion with a mating end for coupling to a mating contact and a tail end opposite the mating end for engaging a printed circuit board where the mating and tail ends extend from opposite sides of the wafer. A conductive spring member is sandwiched between the first and second wafers. The wafer assembly can include one or more electronic components in electrical contact with the spring member and one of the contacts.

A connection system for a quantum computer that employs constant impedance connectors with attenuation or filtering components or both embedded therein or within an adaptor removably insertable within an adaptor housing for use in a cryogenically cooled quantum computer. The connection system provides a higher density of cables traversing through a hermetic sealed top plate, and which are accessible to chill blocks to reduce the thermal energy from the signal lines. Attenuators or filter circuits are embedded in the constant impedance connector housings, or provided in adaptors that connect on each end to form mating constant impedance connections, in order to reduce signal strength as the signal progresses through the cryogenic environment and to remove extraneous electrical signal noise.

The present invention allows a connector other than an adapter to have a pin and an insulator, and thus the connector functions as a filter. A module using the connector of the present invention has a small size so as to be economically and widely applicable. The pin is formed to have a multistage structure of at least two stages having different heights to provide a proper filter function.

The present disclosure provides a filter and a radio frequency coaxial connector, to implement fast blind-mate of various signal ports. The filter includes: a filter cavity body and a coaxial connection component. The coaxial connection component is embedded in the filter cavity body in a self-clinching manner. The coaxial connection component includes a socket outer conductor and a main rod. The main rod penetrates the socket outer conductor, and one end of the main rod is connected to a signal end disposed in the filter cavity body. The coaxial connection component is in socket joint with a radio frequency coaxial connector by using the socket outer conductor, and the coaxial connection component matches the radio frequency coaxial connector.

The present disclosure provides a filter and a radio frequency coaxial connector, to implement fast blind-mate of various signal ports. The filter includes: a filter cavity body and a coaxial connection component. The coaxial connection component is embedded in the filter cavity body in a self-clinching manner. The coaxial connection component includes a socket outer conductor and a main rod. The main rod penetrates the socket outer conductor, and one end of the main rod is connected to a signal end disposed in the filter cavity body. The coaxial connection component is in socket joint with a radio frequency coaxial connector by using the socket outer conductor, and the coaxial connection component matches the radio frequency coaxial connector.

An electrical connector for a multi-wire electrical cable has two or more cable-side electrical contact elements including associated electrical terminals to each of which is to be connected a wire of the electrical cable, and has two or more output-side electrical contact elements, from each of which projects an electrical connector element via which an electrical connection is establishable to a mating connector. An inductive electrical device is disposed between the cable-side and the output-side electrical contact elements. The inductive electrical device is integrally formed with the cable-side and/or the output-side electrical contact elements. The cable-side and the output-side electrical contact elements are electrically connected to each other via the inductive electrical device. The inductive electrical device includes a coil having a plurality of integrally formed windings and/or is at least partially enclosed by a jacket of a plastic material having ferromagnetic material mixed in the plastic material.

An electrical connector for a multi-wire electrical cable includes at least two cable-side electrical contact elements including associated terminals to each of which is connected a wire of the electrical cable, and at least two output-side electrical contact elements, from each of which projects an electrical connector element by which a mating connector is electrically connectable. A tubular outer conductor extends along a longitudinal direction from a cable-side end to an output-side end and encloses the cable-side and output-side contact elements. At least one stranded drain wire of the electrical cable contacts a shield of the electrical cable and is guided to the electrical connector separately from the wires of the electrical cable. The outer conductor has at least one second slot extending along the longitudinal direction of the outer conductor, and the drain wire is received in the second slot in the outer conductor.

An electrical connector for a multi-wire electrical cable includes at least two cable-side electrical contact elements including associated terminals to each of which is connected a wire of the electrical cable, and at least two output-side electrical contact elements, from each of which projects an electrical connector element by which a mating connector is electrically connectable. A tubular outer conductor extends along a longitudinal direction from a cable-side end to an output-side end and encloses the cable-side and output-side contact elements. At least one stranded drain wire of the electrical cable contacts a shield of the electrical cable and is guided to the electrical connector separately from the wires of the electrical cable. The outer conductor has at least one second slot extending along the longitudinal direction of the outer conductor, and the drain wire is received in the second slot in the outer conductor.

Disclosed herein is a circuit board that includes: a plurality of insulating layers, a common mode filter and an electronic component embedded in the insulating layers, and first to fifth outer electrodes. The first coil pattern of the common mode filter is connected between the first and second outer electrodes. The second coil pattern of the common mode filter is connected between the third and fourth outer electrodes. The electronic component is connected between the first and second outer electrodes and the fifth outer electrode. The electronic component is arranged so as not to overlap the first coil pattern and the second coil pattern.

Disclosed herein is a circuit board that includes: a plurality of insulating layers, a common mode filter and an electronic component embedded in the insulating layers, and first to fifth outer electrodes. The first coil pattern of the common mode filter is connected between the first and second outer electrodes. The second coil pattern of the common mode filter is connected between the third and fourth outer electrodes. The electronic component is connected between the first and second outer electrodes and the fifth outer electrode. The electronic component is arranged so as not to overlap the first coil pattern and the second coil pattern.