A composite material for electromagnetic interference shielding is provided. The composite material comprises a polymer matrix with metal nanoparticles dispersed within the matrix. Methods of characterizing the nanocomposites are provided and demonstrate commercially relevant mechanical and electrical properties, particularly an electromagnetic interference shielding effectiveness in the microwave frequency. An economical process for preparing the nanocomposites is also provided.

A panel for an electromagnetic shield includes a light-weight, porous, electrically-conductive core layer of metallic foam having generally parallel opposed surfaces and a face sheet having rigidity properties superior to the rigidity properties of the core layer laminated to a surface of the core layer. Alternatively, a panel for a broadband electromagnetic shield includes a composite fiber-reinforced core having opposed surfaces and a layered electrically-conductive composite cover disposed on a surface of the core. The cover includes a first stratum of porous metal exhibiting pronounced low-frequency electromagnetic shielding properties and a second stratum of electrically-conductive elements exhibiting pronounced high-frequency electromagnetic shielding properties secured in an overlapping electrically-continuous relationship to the first stratum, the first stratum being a metallic lattice, and the electrically-conductive elements being a non-woven veil of electrically-nonconductive metal-coated fibers.

Embodiments of the present invention relate to electromagnetic interference (EMI) shielding structures. Rectangular EMI shielding panels are formed that include a first and second ends. A pair of rectangular EMI shielding panels are affixed orthogonal to each other at their first ends. The pair of rectangular EMI shielding panels are successively overlapped with each other to thereby form a plurality of interconnected EMI shielding planes. The pair of rectangular EMI shielding panels are affixed to each other at their second ends to form a helical EMI shielding structure that unfolds to an unfolded state and folds to a folded state along its center axis. Here, the plurality of interconnected EMI shielding planes are each angularly offset from each other about the center axis to form a helical structure when in the unfolded state. The EMI shielding panels include an encapsulating layer and/or metallic layer.

A feed-through provides electromagnetic shielding where one or more signal leads pass through an enclosure. It comprises a frame, having at least one opening, and an assembly comprising two or more joining parts, forming one or more elongated waveguides. The joining parts are divisible along the length of the waveguides, thereby being capable of surrounding a signal lead. The assembly is adapted to be attached to the frame such that one or more signal leads can pass through an opening in the frame and through one of the waveguides. Installation is of the feed-through is made easier by the opening in the frame having a larger maximum extension than the maximum extension of a waveguide.

A wireless location device comprises a BLUETOOTH beacon configured to emit wireless signals and an electromagnetic shielding cover. The BLUETOOTH beacon is positioned within the electromagnetic shielding cover. The electromagnetic shielding cover comprises an inner surface comprising a plurality of micro-structures, and an opening below the inner surface. The inner surface is configured to reflect towards the opening the wireless signals emitted by the BLUETOOTH beacon which are not directly emitted out of the opening.

In some examples, an electromagnetic (EM) shielding tile is described. The EM radiation shielding tile may include one or more of an EM radiation shielding fabric layer, a mu metal layer, and/or a microwave absorbing layer. In some cases, the EM radiation shielding tile may be configured to bond to clothing, electronic devices, or other objects to deflect and/or absorb electromagnetic field radiation.

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.

In a camera, a circuit board converts light having passed through a lens into an electric signal. A connector connects the circuit board to an outside cable. A shielding conductor surrounds the circuit board. An insulating housing houses the circuit board and the shielding conductor. A connector includes inner, intermediate, and outer connectors. The inner connector includes a first outer skin conductor, and is mounted to the circuit board. The intermediate connector includes a second outer skin conductor supporting a shielding conductor, and is connected to the inner connector and the shielding conductor. The outer connector includes a third outer skin conductor, and connects an outside cable to the intermediate connector. The shielding conductor wraps the circuit board from a boundary, as a starting point, between the second outer skin conductor and the shielding conductor. The insulating housing is connected to and supported by the intermediate connector.

A thermal management device with electromagnetic (EM) shielding includes a fin pack with a plurality of channels. The fin pack has an upper and lower surface. The fin pack has a pack length, pack height, and pack width. The fin pack has fins are oriented connecting the upper surface to the lower surface. The plurality of channels extends from a first end toward a second end. A first channel of the plurality of channels is adjacent the upper surface, and a second channel of the plurality of channels is adjacent the lower surface.

An electronic device is provided in the present disclosure, and the electronic device includes a middle frame, a soaking unit, a shielding case, a heat source and a radiator. The middle frame includes a first surface. The soaking unit is disposed on the first surface. The shielding case is spaced apart from the soaking unit and is provided with a shielding cavity. The heat source is disposed between the soaking unit and the shielding case and includes a circuit board disposed on the soaking unit and a first heat source component disposed on the circuit board, the first heat source component is disposed in the shielding cavity. The radiator is configured to dissipate heat from the shielding case and/or the heat source.