A metal-foam structure is used to shield or reduce harmful electromagnetic waves that are generated by electronic devices. A metal-foam material has regulated pores and is incorporated in an electronic device. The metal foam structure shields, prevents, or reduces harmful electromagnetic waves generated by the electronic device from reaching the human body or interfering with a sensitive electronic component. This metal foam is a relatively lightweight material having regulated microscale pore structure. The pores in the metal foam can also form directionality relative to the direction of incoming electromagnetic waves for more effective reflection or absorption of electromagnetic waves. The metal foam can also be used as both an electromagnetic-shielding and a heat-dissipating component for electronics including popular consumer electronics such as mobile phones, notebooks, and high-power desktop computers.

A shield structure includes a main body portion and a lid portion. An electronic circuit is stored in the main body portion. The lid portion is attached to the main body portion in a detachable manner, and includes a first contact portion. The main body portion includes an opening portion, a second contact portion, and a pressurizing portion. When the first contact portion moves in a direction perpendicular to a direction of the lid portion attached to the main body portion, in a state of being inserted in the opening portion, the first contact portion is elastically deformed in a first direction by contacting the second contact portion and comes into pressure contact with the second contact portion. When the first contact portion is inserted in the opening portion, the pressurizing portion contacts and pressurizes the first contact portion in a second direction opposite to the first direction.

A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. According to the disclosure, an antenna module includes a first substrate layer on which at least one substrate is stacked; an antenna coupled to an upper end surface of the first substrate layer; a second substrate layer having an upper end surface coupled to a lower end surface of the first substrate layer and on which at least one substrate is stacked; and a radio frequency (RF) element coupled to a lower end surface of the second substrate layer.

A processing chamber includes an upper surface and a showerhead arranged to supply gases through the upper surface into the processing chamber. At least a portion of the showerhead extends above the upper surface of the processing chamber. A shroud enclosure is arranged on the upper surface of the processing chamber. The shroud enclosure is arranged around the portion of the showerhead extending above the upper surface of the processing chamber and is configured to isolate radio frequency interference generated by the showerhead.

An electronic device and related method that includes a metal member, a circuit board, and a shielding member. A through hole or slot is disposed on the metal member. The shielding member is fastened on the metal member. The shielding member includes a blocking portion and an enclosing portion. The blocking portion is made of an electrically conductive plastic material. The enclosing portion is made of a metal material or an electrically conductive plastic material. The blocking portion is configured to block the through hole or slot. The enclosing portion is disposed around the electronic component. One end of the enclosing portion is electrically connected to the metal member, and the other end of the enclosing portion is electrically connected to the circuit board. The metal member, the blocking portion, the enclosing portion, and the circuit board form a shielding space, and the electronic component is located in the shielding space.

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.

The invention relates to a test block intended to be implanted in the circuit connecting an apparatus to be tested such as an electricity meter or a protective relay and a power source supplying the apparatus to be tested such as an intensity sensor and/or a voltage sensor. The test block comprises a base including a plurality of inner electric circuits capable of allowing the transmission of information from the power source to the apparatus to be tested and a protective cover intended to be assembled in a dismountable manner with the base in order to form a closed enclosure in which the inner electric circuits are housed. The base and the protective cover are configured such that the removal of the protective cover gives access to a receiving site delimited by the base and capable of receiving by plugging a test plug independent of the test block and electrically linked to a test equipment, in particular a voltmeter and/or an ammeter and/or a dummy current source. A test appliance is also described.

There is described a test block intended to be implanted in the circuit connecting an apparatus to be tested such as an electricity meter or a protective relay and a power source supplying the apparatus to be tested such as an intensity sensor and/or a voltage sensor, the test block comprising a base including a plurality of inner electric circuits capable of allowing the transmission of information from the power source to the apparatus to be tested and a protective cover intended to be removably assembled with the base in order to form a closed enclosure in which the inner electric circuits are housed. The base and the protective cover are configured such that the removal of the protective cover gives access to a receiving site delimited by the base and capable of receiving, by plugging, a test plug independent of the test block and electrically linked to a test equipment, in particular a voltmeter and/or an ammeter and/or a dummy current source. The base and the protective cover comprise electrically conductive elements linked to each other and configured so as to ensure a continuity and magnetic shielding closure such that the enclosure delimited by the base and the protective cover is a Faraday cage protecting the inner electric circuits relative to the magnetic fields external to the enclosure delimited by the base and the protective cover.

A device, system and method for protecting electronic systems from failure or damage when such systems are subjected to undesired conducted or radiated energy such as electromagnetic pulse or electromagnetic interference. The invention also reduces the amount of conducted or radiated emissions from an electronic system. A novel, non-conductive signal feedthrough allows a desired signal to be communicated with electrical connectivity. An incoming desired electrical signal is converted to vibrational energy by a piezoelectric transducer, which is communicated into the interior volume of a conductive electrical enclosure housing a system to be protected, where it is converted back to electrical for processing by the system to be protected by a second piezoelectric transducer. The signal feedthrough allows a continuous conductive enclosure to be employed, providing protection from undesired radiated energy. The signal feedthrough allows communication without requiring electrical conduction through the feedthrough, thus protecting against undesired conducted energy.

The present invention relates to a composition for forming a conductive pattern by irradiation of electromagnetic waves capable of allowing excellent formation of a conductive micro-pattern on various polymer resin products comprising a polycarbonate resin or on resin layers by a simple method such as irradiation of electromagnetic waves and plating, and capable of reducing the degradation of the physical properties of the resin products or resin layers caused by the irradiation of electromagnetic waves, a method for forming a conductive pattern using the same, and a resin structure having a conductive pattern. The composition for forming a conductive pattern by irradiation of electromagnetic waves comprises: a polymer resin comprising a polycarbonate resin; and an electromagnetic wave-absorbing inorganic additive which absorbs an electromagnetic wave having a wavelength in the infrared region and satisfies the characteristic that a laser sensitivity Ls defined by a predetermined relational expression is 1.6<−log(Ls)<6.0.