Other

Laird Technologies Gmbh

Amc Centurion Ab

Sunway Communication (Beijing) Co., Ltd.

Axel Von Arbin

Andrei Kaikkonen

Peter Lindberg

Tomas Rutfors

Pavel Miskovský

An antenna device for radio communications in a wearable device comprises a ground plate having an arc shape, a first antenna plate extending essentially parallel to the ground plate and connected thereto at a first end portion of the ground plate, the first antenna plate having a first feed terminal, and a second antenna plate extending essentially parallel to a the ground plate and connected thereto at a second end portion of the ground plate opposite to the first end portion of the ground plate, the second antenna plate having a second feed terminal. A gap is provided between the first antenna plate and the second antenna plate.

Antenna device and wearable device comprising such antenna device

The present invention relates to an antenna device for a portable radio communication device adapted for receiving and/or transmitting radio signals in at least a first and a second operating frequency band, said antenna device comprising a half-loop radiating element, comprising a feeding portion and a grounding portion, and arranged to operate at FM frequencies. The antenna device comprises a capacitor at said feeding portion and an inductor at said grounding portion, and said half-loop radiating element is arranged to simultaneously with FM frequencies operate at frequencies at least ten times higher than FM frequencies, wherein said capacitor is arranged to short circuit said half-loop radiating element to ground for frequencies at least ten times higher than FM frequencies and said inductor is arranged to short circuit said half-loop radiating element to ground for FM frequencies.

Antenna device and portable radio communication device comprising such antenna device

The present invention comprises an antenna device for a portable radio communication device operable in at least a first and a second frequency band. The antenna device comprises a first electrically conductive radiating element having a feeding portion connectable to a feed device (RF) of the radio communication device for feeding and receiving radio frequency signals, a first ground plane portion arranged at a distance from the first radiating element, a second ground plane portion, and a controllable switch arranged between the first and second ground plane portion for selectively interconnecting or disconnecting the first and second ground plane portion.

Antenna device and portable radio communication device comprising such an antenna device

The present invention relates to a portable radio communication device operable in at least a first and a second frequency band, the antenna device comprises a first electrically conductive radiating element comprises a first feeding portion connectable to a feed device (RF) of the radio communication device for feeding and receiving radio frequency signals, a ground plane provided at a distance from the first radiating element, a DC-blocking device connecting the first electrically conductive radiating element and the ground plane at a first position, and a controllable switch connecting the first electrically conductive radiating element and the ground plane at a second position.

Growing community of inventors

Täby, Sweden

Axel Von Arbin