The invention concerns an assembly for an antenna operating in a slot mode. It is also directed to an electronic wristwatch-like device comprising such antennas. The antenna assembly comprises at least one circuit board of an electronic device, a conductive body arranged at a distance from said at least one circuit board, at least one feed element for coupling an electromagnetic signal between said conductive body and said circuit board, and wherein at least one conductive rim structure is running peripheral to at least one said circuit board. The conductive rim and the conductive body define at least one slot mode antenna between themselves. The length of a slot mode antenna is defined between two points at which said conductive body is connected to said conductive rim.

A wearable device which is mountable on a wrist of a user includes a housing including a metal structure, a display positioned within the housing, wherein the display includes a metal layer positioned within the metal structure and spaced apart from the metal structure by a given gap, a printed circuit board (PCB) positioned within the housing and including a ground region, and a control circuit positioned on the PCB and configured to feed a first point of the metal structure. The metal layer is electrically connected with the ground region of the PCB at a second point spaced from the first point by a given angle.

A wearable device which is mountable on a wrist of a user includes a housing including a metal structure, a display positioned within the housing, wherein the display includes a metal layer positioned within the metal structure and spaced apart from the metal structure by a given gap, a printed circuit board (PCB) positioned within the housing and including a ground region, and a control circuit positioned on the PCB and configured to feed a first point of the metal structure. The metal layer is electrically connected with the ground region of the PCB at a second point spaced from the first point by a given angle.

An electronic watch with a built in antenna includes a watch case including a case body configured of a conductive material, a bezel configured of a conductive material and provided on a watch front surface side of the case body, and a cover glass attached to the bezel. The electronic watch includes a dial disposed inside the watch case, a dial ring disposed around the dial, and an antenna disposed inside the watch case. At least a portion of the antenna is disposed outside an outer circumference of the dial in plan view as seen from a direction orthogonal to a front surface of the dial. At least one of the dial, the dial ring, and the cover glass is a dielectric disposed to be closer to the watch front surface side than to the antenna and disposed within a predetermined distance from the antenna, the distance being set in accordance with a wavelength of radio waves received by the antenna.

An electronic watch with a built in antenna includes a watch case including a case body configured of a conductive material, a bezel configured of a conductive material and provided on a watch front surface side of the case body, and a cover glass attached to the bezel. The electronic watch includes a dial disposed inside the watch case, a dial ring disposed around the dial, and an antenna disposed inside the watch case. At least a portion of the antenna is disposed outside an outer circumference of the dial in plan view as seen from a direction orthogonal to a front surface of the dial. At least one of the dial, the dial ring, and the cover glass is a dielectric disposed to be closer to the watch front surface side than to the antenna and disposed within a predetermined distance from the antenna, the distance being set in accordance with a wavelength of radio waves received by the antenna.

An NFC watch includes a metal shell, a support and an NFC antenna arranged at the top of the support, wherein the support is mounted at the bottom of the metal shell, and the NFC antenna is clamped between the metal shell and the support and exposed to the outside. The NFC watch further includes a PCB arranged in the support and electrically connected with the NFC antenna and a power supply arranged at the bottom of the support and used for supplying power to the PCB. The NFC watch is simple in structure and high in practicability.

An NFC watch includes a metal shell, a support and an NFC antenna arranged at the top of the support, wherein the support is mounted at the bottom of the metal shell, and the NFC antenna is clamped between the metal shell and the support and exposed to the outside. The NFC watch further includes a PCB arranged in the support and electrically connected with the NFC antenna and a power supply arranged at the bottom of the support and used for supplying power to the PCB. The NFC watch is simple in structure and high in practicability.

A wearable device which is mountable on a wrist of a user includes a housing including a metal structure, a display positioned within the housing, wherein the display includes a metal layer positioned within the metal structure and spaced apart from the metal structure by a given gap, a printed circuit board (PCB) positioned within the housing and including a ground region, and a control circuit positioned on the PCB and configured to feed a first point of the metal structure. The metal layer is electrically connected with the ground region of the PCB at a second point spaced from the first point by a given angle.

A wearable device which is mountable on a wrist of a user includes a housing including a metal structure, a display positioned within the housing, wherein the display includes a metal layer positioned within the metal structure and spaced apart from the metal structure by a given gap, a printed circuit board (PCB) positioned within the housing and including a ground region, and a control circuit positioned on the PCB and configured to feed a first point of the metal structure. The metal layer is electrically connected with the ground region of the PCB at a second point spaced from the first point by a given angle.

A wearable device mountable on a user's wrist is provided. The wearable device includes a housing having a metal structure, a display disposed in the housing and including a metal layer, the metal layer being disposed so as to be surrounded by the metal structure and to be spaced apart by a gap, a printed circuit board (PCB) disposed in the housing and including a ground area, and a control circuit disposed on the PCB and feeding a first point of the metal structure. Here, the metal layer is electrically connected with the ground area of the PCB at a second point spaced apart by an angle with respect to the first point.