271results about "Aperture leaage reduction" patented technology

An energy conditioning structure comprised of any combination of multilayer or monolithic energy conditioners with operable conductors, all selectively arranged and shielded for attachment to at least a conductive substrate.

A grounding clamp includes mechanical features for electrically interconnecting two or more shielding layers of shielded cables, and/or for interconnecting the shielding layer of one or more shielded cables to an electrically grounded chassis. The grounding clamp includes two elongated brackets, each having a first end and a second end, and each being formed of an electrically conductive material. The two brackets include undulating surfaces, and are interconnected to each other at their first ends by a tab and slot arrangement. When the two brackets face each other the undulations on their undulating surfaces are offset relative to one another. The second ends of the brackets are connected by a threaded fastener arrangement, so that cables may be pinched between the undulating surfaces to establish electrical conductivity between shielding layers of the cables and the grounding clamp. One of the two brackets may also include fastening features allowing the grounding clamp to be physically and electrically connected to a grounded chassis.

A bushing arrangement and method for passing an electrical cable with conductive shielding through an opening in a wall while providing protection against electromagnetic overtension and electrical interference and the like, including the placement of an electrically conductive bushing in the wall opening that is electrically connected to earth ground potential, and electrically connecting an electrically conductive tape between the electrically conducting shielding and the electrically conductive bushing so as to connect the conductive shielding to earth ground potential. The electrically conductive tape is made electrically conductive by the use of carbon black particles.

The present invention provides an electromagnetic wave shielding structure for shielding electromagnetic waves emitted from a harness of electrical equipment. For example, a vehicle body of an electric vehicle is provided with a direct current power source, an inverter, and a driving motor. The direct current power source and the inverter, and the inverter and the driving motor are connected to each other by harnesses, respectively. Around the harnesses, cylindrical members for shielding electromagnetic waves are provided, respectively, so as to cover the harnesses. The peripheral wall of the cylindrical member made of aluminum, on which an uneven portion is formed continuously in the axial direction, shields electromagnetic waves emitted from the harness to the outside.

The invention relates to a cable connection device for connecting a cable to a housing that is to be electromagnetically shielded, comprising a sheath, which serves to surround the cable in the region of a cable feedthrough opening in the housing and is designed to be electrically conductive at least at its surface. In order to achieve a cable connection device with a simple design which can be used for different cables and has improved shielding, the invention proposes that the sheath completely covers a cable feedthrough opening, which is associated with the housing, when viewed in a direction axial to the cable feedthrough opening, the sheath being provided with shielding structures for damping electromagnetic radiation on an inner surface, which points towards the cable to be accommodated.

In a receptacle cage, a front EMI fingers in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between outer peripheral surfaces of an upper case as well as a lower plate of an optical module connected to a receptacle connector in a receptacle connector accommodating portion and an inner surface of the cage is shielded by a top EMI fingers serving as a second shield member and side EMI fingers serving as third shield members. Moreover, the lower plate comes into contact with a bottom wall portion which is grounded.

A magnetic composite tape for inhibiting radiation noise and a radiation noise inhibiting component using such a magnetic composite tape which can be easily attached to a cable and has a high radiation noise inhibiting effect are provided. A magnetic composite tape for radiation noise control has an elongated shape, and includes a magnetic band member and a metal foil provided on the surface of the magnetic band member. The magnetic band member includes a rubber or a flexible resin and ferrite magnetic powders. One side of the metal foil in a width direction projects from one side of the magnetic band member. An adhesive is applied on the other surface of the magnetic band member. The composite tape is wound and attached with the adhesive applied on the other surface of the magnetic band member at a location on a cable, such as an interface cable, a head cable (power supply cable) or the like, which is to located close to an electronic apparatus containing an oscillation circuit. The composite tape is wound such that the projected left side of the metal foil can overlap the adjacent right side of the metal foil.

An EMI collar is provided that is configured to be secured about a housing of a pluggable optical transceiver module. The configuration of the EMI collar and the method by which the collar is attached to the housing of the transceiver module ensures that the collar will not be damaged when the transceiver module housing is inserted into a cage. Ensuring that the collar will not be damaged during insertion ensures that electrically conductive contact points on the collar will not be eliminated by insertion of the housing into a cage. In addition, dimples, or indentations, formed on the spring fingers of the EMI collar result in additional electrically conductive contact points on the fingers that result in a reduction in the size of the maximum EMI aperture dimension of the collar. Reducing the maximum EMI aperture dimension of the collar greatly improves the ability of the collar to attenuate EMI signals, even EMI signals having high frequencies.

A low-cost noise suppressive technology using a general connector, reliably grounding to a shielding sheath of shielded cable at a low impedance by simple structure. The structure comprises conductive shielding covers attached to a chassis to enclose both sides of the second connector of non-shielded type at a tip of the shielded cable connected to the first connector mounted on the chassis and are fixed in a state to mate each other. Gaskets made of elastic material are respectively attached to inside of each shielding covers and made of conductive material being in electrical contact with the shielding cover. The gaskets are elastically contacted and conducted with the shielding sheath at an exposed portion of the shielded cable when the shielding covers are attached to the chassis to enclose the second connector and are fixed in the state to mate each other.

A cable feed-through is provided in accordance with the present invention. The cable feed-through comprises a housing which can be fixed to an appliance, a fixing device for a cable held on the housing and a shield contact element held on the housing. The shield contact element comprises a bristle element for making contact with a cable shield with elastic and electrically conductive bristles.

A rotary cable connector assembly for connecting coaxial waveguides. The assembly includes a metal stator having a counterbored well and a metal rotor extending coaxially into the well. An axial air gap is formed between the stator and rotor which each contain a conventional dielectric sleeve and center element for mating conventionally to carry a signal therebetween. An electrical connector/dynamic RF shield for providing an electrical path across the rotary joint and for shielding the air gap includes a pair of rings having crenelated cylindrical leaves extending axially toward each other and being interspersed. Each ring has a face for making electrical contact with the stator and rotor. A spring urges the rings into contact with the stator and rotor. The crenelated leaves provide RF shielding of the air gap surrounded by the shield. The rings are formed of bronze or other non-precious metal or alloy.