Abstract: A dual band antenna and an electronic device are provided. The dual band antenna includes a feed end, an annular connection end, a metal screw, a first extension path, a second extension path, a third extension path, and a grounding part. The annular connection end has an opening and is connected to the feed end. The metal screw has a threaded stud passing through the opening, so that the metal screw is electrically connected to the annular connection end. The feed end, the first extension path, the second extension path, the third extension path, and the grounding part are sequentially connected to each other. The dual band antenna is configured to have a monopole antenna and a loop antenna, so that the dual band antenna has a wide operating frequency band, and the monopole antenna operates at 3.6 GHz and the loop antenna operates at 4.6 GHz.

Abstract: A dual-band antenna module is provided. The dual-band antenna module includes a circuit board, a ground coupling portion electrically connected to a reference ground plane of the circuit board, a first antenna, and a second antenna spaced from the first antenna. The first antenna and the ground coupling portion are disposed on the circuit board and configured to couple each other. The first antenna includes a first radiation unit, a U-shaped conductive frame, and a first feeding portion. The U-shaped conductive frame is disposed on the first radiation unit and opens toward the circuit board. The second antenna includes a second radiation unit, a high-frequency impedance portion, and a second feeding portion. The second radiation unit and the high-frequency impedance portion are respectively disposed on two opposite surfaces of the circuit board to resonate to each other. The second radiation unit includes a ground extension portion electrically grounded.

Abstract: A dual-band antenna module is provided. The dual-band antenna module includes a circuit board, a ground coupling portion electrically connected to a reference ground plane of the circuit board, a first antenna, and a second antenna spaced from the first antenna. The first antenna and the ground coupling portion are disposed on the circuit board and configured to couple each other. The first antenna includes a first radiation unit, a U-shaped conductive frame, and a first feeding portion. The U-shaped conductive frame is disposed on the first radiation unit and opens toward the circuit board. The second antenna includes a second radiation unit, a high-frequency impedance portion, and a second feeding portion. The second radiation unit and the high-frequency impedance portion are respectively disposed on two opposite surfaces of the circuit board to resonate to each other. The second radiation unit includes a ground extension portion electrically grounded.

Abstract: The present disclosure relates to a wireless communication structure, including a plate, a first antenna, a first magnetic material layer, and a second magnetic material layer. The plate has a first surface, a second surface opposite to the first surface, and a lateral surface extending between the first surface and the second surface. The first antenna is located in the plate. The first magnetic material layer is adjacent to the lateral surface of the plate. The second magnetic material layer is located on the second surface of the plate.

Abstract: The disclosure illustrates a NFC antenna. The NFC antenna includes a first radiating portion and a second radiating portion. The first radiating portion is formed by a first conducting wire surrounding an axis core. The second radiating portion is formed by a second conducting wire surrounding the same axis core based on a surrounding direction which the first radiating portion surrounds the axis core. A second signal input terminal of the second radiating portion is electrically connected to a first signal input terminal of the first radiating portion. An open end of the second radiating portion is disposed proximately to a first signal output terminal. Thus, the NFC antenna can reduce the interferences affected from surrounding metal elements, and improve a quality factor of the NFC antenna.

Abstract: A multi-band antenna and electronic device are provided. The multi-frequency antenna includes a feeding portion, a shorting portion, a radiating portion and a loop radiating portion. One end of the feeding portion is electrically connected to a signal source. One end of the shorting portion is electrically connected to a ground plane. The radiating portion is electrically connected to another end of the shorting portion and another end of the feeding portion. The loop radiating portion is electrically connected to the radiating portion.

Abstract: The present disclosure relates to a wireless communication structure, including a plate, a first antenna, a first magnetic material layer, and a second magnetic material layer. The plate has a first surface, a second surface opposite to the first surface, and a lateral surface extending between the first surface and the second surface. The first antenna is located in the plate. The first magnetic material layer is adjacent to the lateral surface of the plate. The second magnetic material layer is located on the second surface of the plate.

Abstract: A handheld device includes at least two NFC antennas provided with different RF transmission directions. The at least two NFC antennas are separated from each other and share one communication unit. In light of this, the handheld device exchange data with an external NFC device through the at least two NFC antennas to have more effective inductive coupling directions.

Abstract: The disclosure illustrates a NFC antenna. The NFC antenna includes a first radiating portion and a second radiating portion. The first radiating portion is formed by a first conducting wire surrounding an axis core. The second radiating portion is formed by a second conducting wire surrounding the same axis core based on a surrounding direction which the first radiating portion surrounds the axis core. A second signal input terminal of the second radiating portion is electrically connected to a first signal input terminal of the first radiating portion. An open end of the second radiating portion is disposed proximately to a first signal output terminal. Thus, the NFC antenna can reduce the interferences affected from surrounding metal elements, and improve a quality factor of the NFC antenna.

Abstract: A multi-band antenna and electronic device are provided. The multi-frequency antenna includes a feeding portion, a shorting portion, a radiating portion and a loop radiating portion. One end of the feeding portion is electrically connected to a signal source. One end of the shorting portion is electrically connected to a ground plane. The radiating portion is electrically connected to another end of the shorting portion and another end of the feeding portion. The loop radiating portion is electrically connected to the radiating portion.

Abstract: A handheld device includes at least two NFC antennas provided with different RF transmission directions. The at least two NFC antennas are separated from each other and share one communication unit. In light of this, the handheld device exchange data with an external NFC device through the at least two NFC antennas to have more effective inductive coupling directions.

Abstract: An antenna module includes a printed circuit board, multiple conductive clamps bonded to the printed circuit board, each conductive clamp having elastic clamping arms at two opposite lateral sides thereof, and an antenna inserted in between the clamping arms of each conductive clamp and secured and electrically conducted to the printed circuit board by the conductive clamps for signal feed-in and grounding.

Abstract: An antenna device includes an antenna and a transmission element. The antenna includes a grounding element and a radiating element. The radiating element is connected to the grounding element and is provided with a plurality of spaced apart feeding portions. The transmission element is connected selectively to one of said feeding portions. When the transmission element is connected to one of the feeding portions, the radiating element operates in a distinct frequency.