A wireless communication device is provided and includes a communication module, a dust and moisture resistant adhesive, and a nano-metallic layer. The communication module includes a circuit board, a communication chip and a plurality of passive components mounted on a carrying surface of the circuit board, and an insulating sheet that is disposed on the passive components and that has a thickness smaller than or equal to 150 μm. The dust and moisture resistant adhesive covers any electrically conductive portions of the communication module on the carrying surface. The nano-metallic layer covers the dust and moisture resistant adhesive, the communication chip, the passive components, and the insulating sheet, and is electrically coupled to a grounding portion of the circuit board. The wireless communication device does not include any grounding metal housing mounted on the circuit board.

An information handling system (IHS) includes an antenna system. The antenna system includes a smart antenna and a smart antenna control system, the smart antenna control system controlling configuration of a configurable aspect of the smart antenna based upon information regarding the configurable aspect of the smart antenna.

Multiphase flowmeter aperture antenna transmission and pressure retention are disclosed herein. An example apparatus includes at least one radiating element to transmit or receive an electromagnetic signal along a measurement plane orthogonal to a direction of flow of the fluid in the vessel; a pressure retaining member to prevent fluid from entering the aperture antenna assembly through a measurement window of the aperture antenna assembly, at least a portion of the pressure retaining member to separate the radiating element and the fluid; and a metal housing with or without slits, the pressure retaining member to be at least partially within the metal housing, the radiating element to be coupled to the metal housing.

A radar level gauge system includes a transceiver; an antenna; a hollow waveguide for guiding the transmit signal from a first end facing the transceiver towards a second end facing the antenna; a housing including a heat-dissipating structure arranged at a first distance from the second end; a first thermal connection between the hollow waveguide and the heat-dissipating structure; and a second thermal connection between the hollow waveguide and the housing arranged at a second distance, shorter than the first distance, from the second end. The first and second thermal connection are arranged such that a thermal resistance of a first heat conduction path from the second end of the hollow waveguide through the first thermal connection to the heat-dissipating structure, is lower than a thermal resistance of a second heat conduction path from the second end of the hollow waveguide through the second thermal connection to the housing.

Systems are provided for the efficient generation of oscillating magnetic fields below the Low Frequency band. These systems generate such fields by mechanically rotating one or more diametrically-magnetized permanent magnets. In order to reduce friction, the magnets are rotated by applying a motive magnetic field to the magnet(s) to rotate the magnet(s) and thereby generate the oscillating magnetic field. Additionally, diamagnetic repulsion, active magnetic field control, and/or biasing permanent magnets are employed to levitate the rotating magnet(s), further reducing friction and increasing system efficiency. These systems may be employed to generate modulated low-frequency oscillating magnetic fields for communication through seawater, rocks, or other obstacles. Additionally or alternatively, these systems may be employed to generate low-frequency oscillating magnetic fields for navigation and location sensing, resource identification and extraction, or other applications.

Disclosed is an attachment mechanism for attaching a wireless access point to a vertical structure, such as a wall. The attachment mechanism includes a bracket that is mounted to the vertical structure. The attachment mechanism also includes at least two engagement members positioned on opposing sides of the access point. The two engagement members are horizontally aligned, in some embodiments, when the access point is engaged with a bracket. The two engagement members engage with receptacles that are part of the bracket. One of the receptacles includes a tab which prevents its corresponding engagement member from fully engaging with the receptacle, allowing the attachment mechanism to disengage via disengagement of only one of the engagement members.

A radio frequency and electromagnetic emission shield employed on wireless personal and portable electronic devices, containing one or more layers of radio frequency (RF) or electromagnetic (EM) screening material, shielding the user from harmful RF or EM radiation, or a redirection antenna that receives all RF signals, and redirects those signals away from the user. The RF emission shield may be contained within a plurality of outer layers, providing a secure fit to a wireless electronic device and an outer layer providing an easy grip for the user.

An antenna includes a folding mechanism for configuring the antenna into at least one of a first configuration and a second configuration. When in the first configuration, the antenna is configured for operational use. When in the second configuration, the antenna is configured for shipping in a package. A locking apparatus secures the antenna in either configuration. The folding mechanism and the locking mechanism configure the antenna into the first configuration. A method for preparing for shipment an antenna having a reflector with a width, a height, and depth, a backing structure coupled to the reflector, a first swivel plate, coupled to the backing structure, a feed arm bracket coupled to the first swivel plate, and a feed arm coupled to the feed arm bracket. The first swivel plate facilitates yaw rotations of the feed arm bracket, relative to the backing structure.

An antenna housing is provided that is configured to be mounted to a pole. The antenna housing has spaced upper and lower ends. A sidewall extends between and around the spaced ends to define an interior of the housing. This interior may house and/or partially conceal one or more antennas. Inlet and outlet ducting extend through the sidewall of the housing to individually cool each antenna within the interior of the housing. The inlet and outlet duct may connect to a cooling duct that is in fluid communication with a heat rejection surface of the antenna. Accordingly, each antenna may be cooled using ambient air and the heated air may be exhausted outside of the housing.

In a general aspect, a receiver is disclosed for sensing radio frequency (RF) electromagnetic radiation. The receiver includes a dielectric body having an array of cavities ordered periodically to define a photonic crystal structure in the dielectric body. The dielectric body also has a region in the array of cavities that defines a defect in the photonic crystal structure. An elongated slot through the region extends from a slot opening in a surface of the dielectric body at least partially through the dielectric body. The receiver also includes a vapor or a source of the vapor in the elongated slot as well as an optical window covering the elongated slot. The optical window has a window surface bonded to the surface of the dielectric body to form a seal about the slot opening.