In one example, an electronic device may include a housing having an opening and an antenna assembly disposed in the housing. The antenna assembly may include an antenna mounted to the housing, an antenna module disposed corresponding to the opening, and a cable to connect the antenna to the antenna module via routing the cable through the opening.

A radio frequency system is provided. The radio frequency system supports a simultaneous downlink reception with four antennas and includes at least two antenna groups, a radio frequency processing circuit, and a radio frequency transceiver. The at least two antenna groups include m antennas, where m is greater than or equal to 4 and less than or equal to 8. The radio frequency processing circuit is coupled with the at least two antenna groups and includes modules which are the same in number as the at least two antenna groups. Each module is coupled with one antenna group and is disposed adjacent to the antenna group with which the module is coupled. The modules include one or more transmitting modules, or the modules include one or more transmitting modules and one or more receiving modules. The radio frequency transceiver is coupled with the radio frequency processing circuit.

A radio frequency system is provided. The radio frequency system supports a simultaneous downlink reception with four antennas and includes at least two antenna groups, a radio frequency processing circuit, and a radio frequency transceiver. The at least two antenna groups include m antennas, where m is greater than or equal to 4 and less than or equal to 8. The radio frequency processing circuit is coupled with the at least two antenna groups and includes modules which are the same in number as the at least two antenna groups. Each module is coupled with one antenna group and is disposed adjacent to the antenna group with which the module is coupled. The modules include one or more transmitting modules, or the modules include one or more transmitting modules and one or more receiving modules. The radio frequency transceiver is coupled with the radio frequency processing circuit.

A probe is configured for introduction into a vicinity of a hazard. The probe comprises multiple sensors, communications circuitry, processor circuitry, and a casing. The multiple sensors include at least: a sensor configured to acquire disposition information of the probe; and a sensor configured to acquire environmental information in a vicinity of the probe. The communications circuitry is configured to transmit the disposition information and the environmental information externally to the probe. The processor circuitry is configured to coordinate operation of the multiple sensors and the communications circuitry. The casing is configured to internally house the multiple sensors, the transmitter, and the processor circuitry. The casing comprises an essentially cylindrical bullet shape, and wherein along a major cylindrical axis a first end of the casing comprises a flat butt surface and a second end of the casing comprises a rounded nose surface.

Disclosed herein is a portable communications system comprising an enclosure configured to house a plurality of components, a plurality of component holders attached to the enclosure, at least one wiring arrangement electrically coupled to the plurality of component holders, an internal power source configured to provide electrical energy to at least one component of the plurality of components, at least one input power connector configured to connect with a plurality of external power sources, a plurality of output power connectors configured to connect with a plurality of external electrical loads, a power selector switch, at least one power converter configured to convert electrical power from a first voltage level to a second voltage level, at least one transceiver comprising a plurality of antenna, at least one input device configured to receive input from a user, and at least one output device configured to present output to the user.

Disclosed herein is a portable communications system comprising an enclosure configured to house a plurality of components, a plurality of component holders attached to the enclosure, at least one wiring arrangement electrically coupled to the plurality of component holders, an internal power source configured to provide electrical energy to at least one component of the plurality of components, at least one input power connector configured to connect with a plurality of external power sources, a plurality of output power connectors configured to connect with a plurality of external electrical loads, a power selector switch, at least one power converter configured to convert electrical power from a first voltage level to a second voltage level, at least one transceiver comprising a plurality of antenna, at least one input device configured to receive input from a user, and at least one output device configured to present output to the user.

An operating device for a human-powered vehicle comprises a base member and circuitry. The base member includes a power-supply accommodating part configured to accommodate a power supply extending along a reference plane. The circuitry is provided to the base member to extend along an additional reference plane intersecting with the reference plane.

An operating device for a human-powered vehicle comprises a base member and circuitry. The base member includes a power-supply accommodating part configured to accommodate a power supply extending along a reference plane. The circuitry is provided to the base member to extend along an additional reference plane intersecting with the reference plane.

A first device such as a wristwatch may include a front face at which a display is disposed and a rear face at which a rear housing wall is mounted. Antenna structures may overlap the rear housing wall and may be operable to transit and receive relatively high frequency signals through the rear housing wall to a communication with a second device such as a wireless power transmitting device for the wristwatch. The second device may also include antenna structures that overlap a top surface housing. Respective sets of magnetic structures may be provided in the first and second devices to align the two devices and to form a reliable wireless communication link between the two devices. The first and second devices may include respective antenna arrays that include pairs of antenna elements that are selectively used to form a reliable wireless communication link.

A recyclable logistics apparatus which can provide empty and full signals and a method for processing the empty and full signals, belong to the logistics field. The recyclable logistics apparatus at least comprises a bottom (1), a top cover (2), a foldable side panel (3) and a wireless beacon unit (4) for transmitting a broadcast frame outwards; a trigger switch (5) is provided on the bottom (1), the top cover (2) or the side panel (3); when the side panel (3) of the recyclable logistics apparatus is folded, the trigger switch (5) is in a first trigger state and generates a first electrical signal, and the wireless beacon unit (4) transmits an empty signal outwards according to the first electrical signal; when the side panel (3) of the recyclable logistics apparatus is upright, the trigger switch (5) is in a second trigger state and generates a second electrical signal, and the wireless beacon unit (4) transmits a full signal outwards according to the second electrical signal. As respective recyclable logistics apparatus is changed to the folded state and the upright state, an empty signal and a full signal are generated correspondingly and automatically, which significantly reduces the workload and time for performing statistics about using states of recyclable logistics apparatuses.