A light fixture can include a housing comprising at least one wall that forms a cavity, wherein the housing complies with applicable standards for a hazardous environment. The light fixture can also include an antenna assembly disposed on an outer surface of the housing. The antenna assembly can provide communication with another device within the hazardous environment without compromising the applicable standards for the hazardous environment.

An antenna module includes a dielectric substrate, a plurality of patch antennas, an integrated circuit, a connector, a heat-radiating member, and connection members. The dielectric substrate includes a first substrate part, a second substrate part, and a third substrate part. The second substrate part is bent toward a rear surface of the first substrate part with respect to the front surface of the first substrate part and the third substrate part is bent toward the rear surface of the first substrate part with respect to the front surface of the first substrate part.

A radio system can have an antenna interface unit (AIU), a processor controller unit (PCU), and an interface cable. The AIU can be coupled to one or more antennae and can be configured to receive signals and/or convert the signals to digital signals. The PCU can be coupled to the AIU. The PCU can be configured to receive the analog signals via the interface cable, which can be configured to convey signals according to Wi-Fi, Ethernet, and RF protocols. The interface cable can be configured to provide power from the PCU to the AIU. The PCU can include a contactor controller for protecting against reverse polarity DC power connection.

A device includes a frame, a first circuit board within the frame, and a display over and coupled to the first circuit board. The device further includes a second circuit board electrically coupled to the first circuit board, and a mm-wave gesture sensing system mounted on the second circuit board.

A floor system uses interlocking elements to form a surface raised above a floor surface for the distribution of electrical power and data throughout the floor of a building. The base units of the interlocking elements define channels which receive cables for data and power transmission. Channel and corner covers overlie the channels and interlock with the base units to form the raised surface. Fused electrical feed modules within channels provide electrical power to bus bars which distribute the power to fused terminal boxes and radio frequency sensors and beacons mounted in the base units.

A control arrangement includes a control module and a control module base for mounting the control module to an external surface of a luminaire. The control module includes a contacts; the control module base includes a base body portion having first and second surfaces and a lateral surface between the first and second surfaces, wherein at least one recess is provided on the first surface and configured for receiving the control module contacts. The control module base includes a near-field communication means including information relating to the specification of the luminaire. The control module includes a near-field communication unit configured to read out information in the near-field communication means of the control module base. The control module includes a communication unit configured for communicating said information to at least one of another control module, a segment controller configured for controlling a group of control modules, and a server.

A radio-frequency (RF) heat shield for electronics includes a first and second outer skin formed of an insulating material, an insulating core layer arranged between the first and second outer skin, wherein the insulating core layer has a lower dielectric constant as compared with a higher dielectric constant of the first and second outer skin, and a frequency selective surface (FSS) layer including a reflective metallization pattern that is RF transparent and formed on an exterior surface of each of the first and second outer skin.

An antenna and a communications apparatus, where the antenna includes surface radiating patches, inner radiating patches, a first dielectric substrate disposed between the surface radiating patches and the inner radiating patches, and a second dielectric substrate disposed below the inner radiating patches and configured to carry antenna feeders coupled to the inner radiating patches. A dielectric constant or dielectric loss of the first dielectric substrate is lower than that of an organic resin substrate, and a coefficient of thermal expansion of the second dielectric substrate is lower than that of the organic resin substrate.

An antenna mounting system that includes abase member, a plurality of spaced retaining attachment section and retaining members is provided. The base member has a central passage that is configured to receive an antenna shaft. The plurality of spaced retaining attachment sections are coupled to the base member. A retaining member is coupled to each retaining attachment section. Each retaining member has an engagement portion that is configured to engage an upper surface of a ceiling and a biasing portion that is configured to provide a bias force on the engagement portion to engage the upper surface of the ceiling.

An electronic device is described. This electronic device includes: an interface circuit; and an antenna having a radiator and multiple pairs of reflectors arranged along different axes passing through the radiator in a horizontal plane. A given pair of reflectors includes reflectors on opposite sides of the radiator and along a given axis. During operation, the interface circuit provides control signals to switching elements that selectively electrically couple one or more of the reflectors in the pairs of reflectors to ground, where the one or more of the reflectors modify an antenna radiation pattern of the radiator. Then, the interface circuit communicates, via the antenna, a packet or a frame with a second electronic device, where the communication involves transmitting or receiving wireless signals corresponding to the packet or the frame.