Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, a negative pressure source, a canister, an antenna, and one or more controllers. The negative pressure source can provide negative pressure via a fluid flow path to a wound dressing. The canister can be positioned in the fluid flow path and collect fluid removed from the wound dressing. The antenna can be supported by the housing and wirelessly communicate with an electronic device. The antenna can be oriented in the housing to face downward toward the ground when the negative pressure source is providing negative pressure. The one or more controllers can activate and deactivate the negative pressure source and transmit first data to the electronic device using the antenna or receive second data from the electronic device using the antenna.

Examples relate to concepts for antenna arrangement and particular to an antenna for an electronic device. An electronic device comprises, a case, a lid and a heat spreading structure. Further, an electronic device comprises a hinge arrangement between the case and the lid. The hinge arrangement comprises at least one hinge structure connecting the lid to the case. Further, the electronic device comprises an antenna. The antenna is arranged in an area of the hinge arrangement. The heat spreading structure extends from the case through the area of the hinge arrangement to the lid.

According to examples, an apparatus may include a housing assembly, a camera, and an antenna. The housing assembly may include a first portion that may be rotatably coupled to an electronic device and a second portion that may be rotatably coupled to the first portion. The second portion may have a columnar shape and a cavity may be formed in the second portion. The camera and the antenna may be disposed in the cavity formed in the second portion of the housing assembly.

A work vehicle includes: a cab to be boarded by an operator, the cab including a roof; and a first antenna mounted on the roof. The first antenna is positioned selectively at one of a position lower than a topmost portion of the roof, and a position protruding upward relative to the topmost portion of the roof.

A base configured to be joined with other bases to form a substrate for an antenna array comprises a body, a plurality of male interconnecting features, and a plurality of female interconnecting features. The body includes a front surface and a rear surface and a plurality of edges positioned therebetween. The front surface or the rear surface is configured to retain an antenna. The male interconnecting features of a first base connect with the female interconnecting features of a second base when the first base is joined with the second base to form the substrate or a portion of the substrate.

A wireless antenna module includes a power supply case configured to accommodate a power supply, and at least one module body connected to the power supply. A casing wherein at least a wireless antenna and a controller are provided in the casing. The controller includes an operation unit configured to exchange information at least with another device. A mounting mechanism mounts the module body to a device.

Disclosed are devices, system, and method for mitigating wind damage to satellite antennas and for reducing the amount of ballast required to secure the satellite antennas. The device, system, and method include a mast on which an antenna may be affixed, a pivot gear capable of rotating between two or more positions, and a tension force or retention force on the pivot gear. A load force applied to the antenna creates a risk of damage proportional to the load force. The antenna system is capable of transitioning from a first orientation into a second orientation when the load force exceeds tension force or retention force, or the sum thereof, such that the antenna system experiences a reduced load force and therefore a reduced risk of damage. The device, system, and method also reduce the amount of ballast required to secure a non-penetrating antenna installation against tipping or sliding.

A communications device provides variable ground plane tuning compensation. The communications device includes a radiofrequency antenna configured to generate an electromagnetic field, a ground plane assembly electrically coupled to the radiofrequency antenna, and a variable impedance compensation network electrically connected to the ground plane assembly. The ground plane assembly is configurable between a first physical configuration and a second physical configuration. Each physical configuration presents a different ground plane assembly impedance to the electromagnetic field of the radiofrequency antenna. The variable impedance compensation network provides a compensation impedance for each physical configuration of the ground plane assembly. The compensation impedance of the variable impedance compensation network and the ground plane assembly impedance of each of the physical configurations combine to tune mutual electromagnetic coupling between the ground plane assembly and the radiofrequency antenna to satisfy a predetermined operational tuning condition for the communications device in each physical configuration.

An antenna alignment device may include multiple GNSS antennas, locations and or relative orientations of which may be detected using magnetometers. The GNSS antennas may be mounted on moveable arms (e.g., at far ends of the moveable arms). Multiple magnetometers may be provided at the base of each of the moveable arms. The magnetometers may detect positions of embedded metallic objects at the bases of the corresponding moveable arms thereby determining a position of the moveable arms and the GNSS antennas mounted thereon. A processor may use the detected positions of the GNSS antennas for calculating, among other things, the azimuth of an external antenna to which the antenna alignment device is attached.

A global navigation satellite system (GNSS) antenna alignment device may have two movably attached arms to a main housing of the antenna alignment device. Each arm may have a GNSS antenna mounted thereon. The baseline between the GNSS antennas is therefore tri-segmented, with a first arm forming a first segment, a second arm forming a second segment, and the main housing forming a third segment. The length and orientation of the baseline may be adjusted by moving one or more of the first arm and the second arm. Furthermore, the first arm and the second arm may be stowed for a convenient storage and transport.