Patent ID: 11205837

Abstract:
A tunable antenna system is provided for a wearable personal computing device, such as a smartwatch. The tunable antenna system includes at least two antennas configured for respective sets of frequency ranges. One or more radiating elements of the antennas are formed from portions of a metal bezel of the wearable personal computing device. For at least one of the antennas, an aperture tuner and an impedance tuner positioned within the metal bezel are provided, e.g., to tune between various communication bands. Non-conductive slits may be positioned within the metal bezel to provide isolation between the antennas. A ground plane of the antenna system may be formed by a metallic component of the wearable personal computing device. The antenna system can be insulated from a wearer's skin by a non-metallic back cover and optionally a glass back plate arranged to contact the wearer's skin or clothing during use.