A measuring device which detects a parameter includes at least one communication device which is arranged for wireless short-range communications with a mobile operating device. The communication device includes one or more two-dimensionally formed coil elements arranged for electromagnetic coupling with at least one coil element of the operating device. At least two regions are provided on a coil element or on different coil elements of the communication device, which have a different normal vector.

According to one embodiment, an electronic device comprises a battery, an antenna module including a first coil and a second coil, at least one switch electrically connected with the antenna module, a magnetic field controller electrically connected with the antenna module, a charger electrically connected with the battery and the magnetic field controller, and at least one processor electrically connected with the at least one switch, the magnetic field controller, and the charger. The at least one processor may be configured to, based on an operation mode associated with the antenna module, control the at least one switch to connect the first coil with the magnetic field controller, or to connect the first coil and the second coil in parallel and allow the first coil and the second coil connected in parallel to connect with the magnetic field controller. Other embodiments may be possible as well.

A display substrate has a display area and a peripheral area adjacent to the display area. The display substrate includes; a substrate; an antenna wiring disposed on a side of the substrate; the antenna wiring being located in the peripheral area and arranged around the display area; and at least one conductive layer located on the side of the substrate. The antenna wiring is arranged in a same layer as the at least one conductive layer.

A chip packaging structure includes a miniature antenna, an radio frequency identification chip, and a packaging member, wherein the radio frequency identification chip is electrically connected to the miniature antenna, and the packaging member is adapted to encapsulate the miniature antenna and the radio frequency identification chip, and has a top surface, a bottom surface, and a plurality of side surfaces, wherein the top surface, the bottom surface, and the side surfaces substantially form a hexahedron.

A multi-mode resonator for a quantum computing element is included. In one general aspect, an apparatus including a multi-mode electromagnetic resonator includes a structure configured with a cavity therein that extends lengthwise in a first direction, the cavity including a first side surface and a second side surface facing each other, iris regions are at positions along the first direction on the first side surface of the cavity, the iris regions are arranged to overlap respective electromagnetic fields that form in the cavity in a target mode when electromagnetic energy is supplied to the cavity.

A wearable glucose monitor may include a compact having an antenna positioned on a housing of the glucose monitor to allow the size of the antenna to be larger than a printed circuit board of the glucose monitor positioned internal to the housing. The antenna may be communicatively coupled to a wireless communication device, such as a transceiver on the PCB, to transmit glucose level measurements to an external device through low-frequency radio signals. In some aspects, the antenna may be configured to be distributed into multiple sections positioned on different sections of the housing and connected to form a complete antenna.

Implementations of firearm regulation systems may include a firearm safety system (FSS) configured to physically couple to a firearm. The FSS may include a locking mechanism configured to prevent the firearm from firing and a sensor configured to detect an environmental parameter. The firearm regulation system may also include a management system communicatively coupled to the FSS and a site safety system (SSS) communicatively coupled to the management system. The SSS may include one or more lockdown mechanisms.

A battery pack includes a pack case; a plurality of battery modules mounted to the pack case; a plurality of slave modules respectively mounted to the battery modules one by one to monitor a state of the battery module, each slave module having a slave antenna for wireless communication; a master module configured to integrally manage the state of the battery modules based on information obtained from the plurality of slave modules and have a master antenna for wireless communication; and a waveguide installed inside the pack case to form a wireless communication path between the plurality of slave modules and the master module.

A label with RFID function comprises a support layer and an RFID inlay with an RFID chip and an antenna connected to the RFID chip. The RFID inlay is arranged on the support layer. The antenna comprises at least one capacitive element on which the resonant frequency of the antenna depends. By adding the at least one capacitive element to the antenna, the read/write range of the RFID inlay can be increased.

A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.