Disclosed is an electronic apparatus including a printed board, a plurality of connectors mounted on the printed board, a plurality of communication control circuits that is mounted on the printed board and that controls communication through corresponding ones of the plurality of connectors, and a shield member disposed to face the printed board, in which an annular ground pattern surrounding, without interruption, a shield area including the plurality of communication control circuits is formed on a front surface of the printed board, the plurality of connectors is all disposed outside the ground pattern surrounding the shield area, and the shield member covers the shield area and is fixed to the printed board such that a portion facing the ground pattern is electrically connected to the ground pattern.

An electronic control device includes a housing that stores a substrate on which an electronic component is mounted, a first capacitance unit formed between the housing and the electronic component, and a second capacitance unit formed between the housing and the substrate, in which a noise transmission path is formed between the housing and the substrate via the first capacitance unit and the second capacitance unit.

A vehicular accessory module includes a circuit board and a metal enclosure. An electrically conductive grounding contact affixed at a first side of the circuit board and electrically connected to circuitry at the circuit board. The grounding contact is disposed between and contacts both the first side of the circuit board and the metal enclosure to provide an electrical connection between the circuit board and the metal enclosure. The grounding contact includes an abrasive surface that is in contact with the metal enclosure. Movement of the grounding contact relative to the metal enclosure causes the abrasive surface to scrape the metal enclosure to enhance grounding of the grounding contact with the metal enclosure.

A PCB assembly includes a panel including at least one guide protrusion, at least one mounting portion, and at least one dislocation prevention protrusion, and a PCB including at least one guide hole formed to correspond to the at least one guide protrusion, at least one grounding portion formed to correspond to the at least one mounting portion, and at least one dislocation prevention hole formed to correspond to the at least one dislocation prevention protrusion, wherein the PCB is guided to slide by the at least one guide protrusion and the at least one guide hole, is brought into close contact with the panel by the at least one mounting portion and the at least one grounding portion, and fixed to the panel as the at least one dislocation prevention hole is supported by the at least one dislocation prevention protrusion.

The fitting structure for a conductive sheet of this invention comprises: a conductive member which is arranged within a predetermined region in a front case of an electronic device that has the front case and a rear case, said cases being first and second case pieces that are separably joined to each other, and which is electrically connected to ground patterns of the electronic device; and a conductive sheet which is arranged within the rear case so as to face the predetermined region of the front case and comprises a conductive layer. In a state where the front case and the rear case are joined with each other, the conductive layer of the conductive sheet is in contact with the conductive member and is electrically connected to the ground patterns of the electronic device.

A wireless communication module with improved performance and a mobile object that is equipped with the wireless communication module with the improved performance are provided. The mobile object is equipped with a wireless communication module. The wireless communication module includes a substrate, a first element, and a second element. The substrate includes ground layers. The first element is arranged on the substrate and amplifies an input RF signal. The second element is arranged on the substrate and different from the first element. Each of the ground layers has a groove formed between the first element and the second element.

The electronic device includes: a substrate having an electronic circuit formed therein; a housing for housing the substrate; and a connector disposed on the substrate and serving as an interface between outside and inside of the housing. The substrate has a main circuit pattern portion that forms a main circuit and a frame ground pattern portion that forms a frame ground. The main circuit pattern portion and the frame ground pattern portion are disposed so as not to overlap each other on the substrate and in the substrate. A terminal of the connector is disposed in the frame ground pattern portion.

The present disclosure relates to a substrate structure, including a substrate including at least one electronic device, a first SMD gasket configured to remove an electromagnetic wave formed on the substrate and radiated from the substrate, a second SMD gasket configured to remove an electromagnetic wave formed on the substrate and radiated from the substrate, and a cover shield installed on a surface confronting the substrate to externally discharge heat within the installed region. Here, if a frequency generated from the electronic device is a specific frequency, a spaced distance between the first SMD gasket and the second SMD gasket is set to a length different from a prescribed magnification of a wavelength corresponding to the specific frequency.

The invention relates to a circuit board (1), preferably for a circuit for operating a lighting means, comprising a retaining bow (2), which is arranged on a planar top side (11) of the circuit board (1) and mechanically connected to the circuit board (1); and comprising a through-bore (3), which is arranged at least partially below the retaining bow (2); wherein the through-bore (3) has at least one taper (31) and wherein a housing (5) for protecting the circuit board (1) can be mechanically fastened by means of the retaining bow (2) and the taper (31). The retaining bow (2) is arranged on the circuit board (1) by means of a solder joint (32). The invention further relates to a system for a circuit for operating a lighting means and to a method for fastening a housing (5) to a circuit board (1).

Disclosed is an electromagnetic wave shielding structure. The electromagnetic wave shielding structure comprises: a printed circuit board having a plurality of elements mounted therein and having a ground pad surrounding the plurality of elements; an insulation member made of a pre-molded insulating material and attached to the printed circuit board to surround the plurality of elements; and a conductive coating layer covering an exterior surface of the insulation member, wherein the conductive coating layer is connected to the ground pad.