A shielding enclosure for blocking electromagnetic pulses to protect electrical equipment includes shield panels having a layered structure of conductive sheets and insulating sheets between the conductive sheets with an outward conductive sheet at a first end of the layered structure and an inward conductive sheet at a second end of the layered structure, and a first ground wire connected to the outward conductive sheet for connecting to a ground, and a second ground wire incorporating a rectifier and connected to the inward conductive sheet for connecting to a ground, the rectifier being oriented to restrict the electric current in the second ground wire to flowing from the inward conductive sheet to the ground; where the shield panels are positioned so that the inward conductive sheet generally faces the electrical equipment and the outward conductive sheet generally faces away from the electrical equipment.

Electromagnetically shielding an enclosable structure having a floor, walls, a ceiling, and at least one closeable opening by applying a shielding wallcovering to at least a portion of one of the walls and applying a second type of shielding material to at least a portion of the enclosable structure, wherein the second type of shielding material differs from the shielding wallcovering. The shielding wall covering is wallpaper comprising a metal-coated broad good and a resin. Other types of shielding material may include a transparent, shielding window covering such as NiCVD coated screen of woven silk fibers; shielded flooring such as a layered combinations of Kevlar non-woven as a base layer, nickel-coated non-woven layers, and a PCF toughened polymer; and a transition shielding strip made of a base layer of the shielding wallpaper with a PCF toughened polymer coating over a portion of the strip.

A low pass filter is disclosed. In an embodiment a low-pass filter includes a current-compensated choke, a reference potential and a capacitor connected in parallel with the current-compensated choke and to the reference potential, wherein a core of the current-compensated choke is configured to have a magnetic circuit, and wherein the core has an air gap.

This invention provides an EMF/RF radiation shielding means including a conductive fabric enclosure functioned as a Faraday cage, a pair of flexible magnets for sealing the Faraday cage and a zipper to complete the closure and allow the two magnets to connect. The conductive fabric enclosure has a closable and openable top side, a left side, a right side and a closed bottom side. The conductive fabric enclosure is provided with two accommodations opposite to each other at its inner surface under and along the closable and openable top side. The pair of flexible magnets is respectively placed in the accommodations for connecting and sealing the Faraday cage. The zipper provides easy closing and opening to the enclosure, where the zipper closes it allows the two magnets to connect and when opening it allows easy access to the enclosure.

Compact, integral and ergonomic lightweight shielded enclosures provide a high level of acoustic, RF, EMI, EMP and CBR protection.

A lightweight transportable containerized shelter includes wall panels made of a non-metal composite material coated at least on its inner face with a metal layer for EMI protection. The several wall panels are secured to a metal structural frame without the use of fasteners so as to define a containerized transportable shelter. The shelter meets ISO standards 668 and 1496. The shelter provides a continuous barrier to electromagnetic signals. Moreover, the containerized shelter is amenable to nine high stacking as required for ISO certification.

The invention relates to a reading carrel for RFID tags, having a ceiling, a floor, at least one door, as well as walls encircling the reading carrel and including a plurality of interconnected wall elements, as well as a mounting frame for the walls and the at least one door, as well as means for reading RFID tags in the reading carrel. The reading carrel has a mounting frame comprising a horizontal base extending around an interior of the reading carrel and consisting of a plurality of interconnected base segments, said base being provided with a plurality of vertical supports. Each base segment of the mounting frame is made up of a channel beam and each vertical support is also made of a channel beam, said channel beams having channels thereof consisting of a channel base which is provided on both sides with channel flanges directed away from said channel base, each channel flange extending in a direction transverse to that of said channel base. Each wall element of the wall has its bottom end fitted in the channel of the mounting frame's base and, moreover, each wall has both end faces thereof fitted in the channel of the mounting frame's vertical support. Between at least one base segment as well as a bottom end of the wall element mounted thereon is fitted a radio-frequency interference suppressing seal, such as an EMC gasket, which extends co-directionally with the channel base of a channel beam comprising said base segment, whereby between at least one vertical side face adjoining at least one end face of a wall element mounted on said base segment and the channel flange of the channel of the channel beam comprising the vertical support mounted on the very same base segment is likewise fitted a radio-frequency interference suppressing seal, such as an EMC gasket, which extends co-directionally with the channel base of the channel beam comprising said vertical support, such that the aforesaid radio-frequency interference suppressing seal extends in a substantially continuous manner from the base segment to the channel flange of at least one vertical support. Reading means for RFID tags comprise an antenna as well as a data processing system, both of which provide a capability of reading RFID tags.

A magnetically shielded room includes an upper shielding body, a side peripheral shielding body and a lower shielding body, all of which define a magnetically shielded inner space. The magnetically shielded inner space is divided into first and second inner spaces by a partition member which is a magnetic shielding body. A door, which is a magnetic shielding body, is provided for commonly closing the first and second inner spaces.

The electromagnetic shielding of an enclosable building structure is provided by applying a shielded covering to overlay optical openings in the building structure. The shielded covering comprises a metal-coated woven substrate and a shielding coupling. The metal-coated woven substrate has a woven substrate and a metal coating. The woven substrate may be organic and comprise threads of intermingled fibers such as silk fibers. The metal-coated woven substrate may also have a protection feature such as transparent resin, of barriers of glass or transparent polymeric material. The shielded coupling connects the shielded covering to other shielding components of a shielded building structure to preserve shielding continuity over the interface between shielding components.

The electromagnetic shielding of an enclosable building structure is provided by applying a shielded covering to overlay optical openings in the building structure. The shielded covering comprises a metal-coated woven substrate and a shielding coupling. The metal-coated woven substrate has a woven substrate and a metal coating. The woven substrate may be organic and comprise threads of intermingled fibers such as silk fibers. The metal-coated woven substrate may also have a protection feature such as transparent resin, of barriers of glass or transparent polymeric material. The shielded coupling connects the shielded covering to other shielding components of a shielded building structure to preserve shielding continuity over the interface between shielding components.