Sonova Ag

Antonio Perri

Yves Oesch

Francois Callias

Christoph Leist

Gabriel Perez De La Sota

André Ochsenbein

A body-worn electronic device, including a loop antenna and a transmitter. The overall physical length of the loop antenna is less than 75% of the vacuum wavelength of a lower limit frequency of the operating frequency range of the transmitter, while the electrical length of the antenna is from 0.9 to 1.1 times the guided wavelength of the lower limit frequency of the operating frequency range of the transmitter. The loop antenna includes a plurality of conductors which are connected in series by inductors so as to increase the electrical length of the loop antenna.

Transmission system for a body-worn electronic device

A hearing device includes a wireless communication unit, such as a radio frequency transceiver, and a two-half loop antenna. The antenna includes a conductor defining a first half loop and a second half loop configured to be fed in series with a radio signal from a radio frequency transceiver. The first half loop and the second half loop have mirror images forming respective half loops of the two-half loop antenna. Transverse segments of the first half loop and second half loop join the first half loop and the second half loop at a mid-point of the antenna near a feeding point. The physical antenna length of the antenna is less than &#xbe; of the wavelength of the radio frequency signal to be transmitted or received through the antenna. An electrical length of the antenna is approximately equal to the wavelength of the radio frequency signal to be transmitted or received.

Growing community of inventors

Portalban, Switzerland

Antonio Perri