According to one embodiment, a disk device includes a housing including a hole, a magnetic disk, a control board closing the hole, and an electronic component. The electronic component is mounted on the control board, and assists a control operation for recording and reproducing information on and from the magnetic disk.

A user terminal for transmitting data to a plurality of access points comprises a pre-processor to pre-process at least one source data stream and a multi-beam antenna. The pre-processor comprises a segmenting device to segment the at least one source data stream into a set of N data sub streams, N being an integer greater than 1; a K-muxing unit to perform a N-to-N K-muxing transform on the N data substreams to generate N K-muxed data streams, each of the N K-muxed data streams being a linear combination of the N data substreams; and a bank of modulators to modulate the N K-muxed data streams to generate N K-muxed signal streams. The multi-beam antenna comprises beam forming networks to transform the N K-muxed signal streams into transmit beams, and an array of antenna elements to transmit the transmit beams to the access points.

An electronic device having a slot antenna is disclosed. The electronic device includes a main unit chassis and a display chassis. The main unit chassis includes a base cover formed of a conductor, and a keyboard and a keyboard cover formed of a dielectric. The base cover includes a slot. The display chassis is connected to the main unit chassis through a hinge. The upper surface of the display chassis is covered by a display rear cover formed of a conductor. The lower surface of the display chassis is covered by a display unit and a bezel formed of a dielectric. A slot antenna is formed in a bezel area of the display rear cover. The slot of the base cover is located at a position that opposes a slot of the slot antenna when the display rear cover of the display chassis is overlapping with the main unit chassis.

A disk device includes a housing having a sidewall, the side wall having a first through-hole; a magnetic disk rotatably disposed in the housing and surrounded by the sidewall in a radial direction; a flexible printed circuit electrically connected to the magnetic disk; an insulator closing the first through-hole; a wireless communication device having a first communication antenna inside the housing; and a control board electrically connected to the flexible printed circuit. The control board is supplied with power from outside of the housing via a first connector, and is configured to receive a write command or a read command via the first communication antenna.

An electronic device may include a ring-shaped housing member defining an interior volume. The ring-shaped housing member may be configured to receive electronic device components. The ring-shaped housing member may include a first element comprising an angled region, and a second element comprising an angled region. A first intermediate element may be placed between the first and second elements, where the intermediate element is secured to internal surfaces of each of the first and second elements such that the first and second elements do not overlap. The first intermediate element may fasten the first and second elements to one another, and electrically isolate the first and second elements from one another.

This is directed to connecting two or more elements using an intermediate element constructed from a material that changes between states. An electronic device can include one or more components constructed by connecting several elements. To provide a connection having a reduced or small size or cross-section and construct a component having high tolerances, a material can be provided in a first state in which it flows between the elements before changing to a second state in which it adheres to the elements and provides a structurally sound connection. For example, a plastic can be molded between the elements. As another example, a composite material can be brazed between the elements. In some cases, internal surfaces of the elements can include one or more features for enhancing a bond between the elements and the material providing the interface between the elements.

Examples of slot antennas are described herein. In an example, the slot antenna includes a substrate and an antenna element disposed on the substrate to transmit and receive signals. The substrate is porous.

An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas. The antennas may include phased antenna arrays each of which includes multiple antenna elements. Phased antenna arrays may be formed from printed circuit board Yagi antennas or other antennas. A millimeter wave transceiver may use the antennas to transmit and receive wireless signals. The antennas may be mounted at the corners of an electronic device housing or elsewhere in an electronic device. An electronic device housing may be formed from metal and may have an opening filled with dielectric. The antennas may be aligned with portions of the dielectric. Printed circuit board antennas may have reflectors, radiators, and directors. The reflectors, radiators, and directors may be arranged to align radiation patterns for the antennas with the plastic-filled slots or other dielectric regions in the metal housing.

An electronic device may be provided with wireless circuitry. The wireless circuitry may include one or more antennas and transceiver circuitry such as millimeter wave transceiver circuitry. The antennas may be formed from metal traces on a printed circuit. The printed circuit may be a stacked printed circuit including multiple stacked substrates. Metal traces may form an array of patch antennas, Yagi antennas, and other antennas. Antenna signals associated with the antennas may pass through an inactive area in a display and through a dielectric-filled slot in a metal housing for the electronic device. Waveguide structures may be used to guide antenna signals within interior portions of the electronic device.

This is directed to an electronic device enclosure. The enclosure includes an outer periphery member forming an outer surface of a device, and to which an internal platform is connected. Electronic device components can be assembled to one or both surfaces of the internal platform. The enclosure can include front and back cover assemblies assembled to the opposite surfaces of the outer periphery member to retain electronic device components. One or both of the cover assemblies can include a window through which display circuitry can provide content to a user of the device.