A wireless system includes a first antenna configured to form at least part of the shape of a first ring, a second antenna configured to form at least part of the shape of a second ring, where the second antenna is capable of being coupled to the first antenna by an electromagnetic field, a first rotation control unit configured to rotate at least one of the first antenna and the second antenna about a first axis that passes through the substantial center of the first ring, and a second rotation control unit configured to rotate at least one of the first antenna and the second antenna about a second axis that passes through the substantial center of the second ring and that is substantially orthogonal to the first axis.

The disclosure relates to an array antenna, and more specifically, the array antenna configured by arranging a plurality of antenna elements at close positions. An array antenna is provided. The array antenna includes a first antenna operating in a first mode, and a second antenna operating in a second mode, wherein a correlation between an electric field of the first mode and an electric field of the second mode falls below a first threshold which is predetermined, or a correlation between a magnetic field of the first mode and a magnetic field of the second mode falls below a second threshold which is predetermined.

A deployable antenna system for deployment in an extraterrestrial environment is provided, the deployable antenna system comprising a deployment mechanism including one or more extendable support structures comprising at least one axial support structure adapted to extend in a z-direction parallel to a z-axis in the deployable antenna system and a deployable antenna attached to the one or more extendable support structures and adapted to be stowed in an undeployed state and to be unfurled into a deployed state by the deployment mechanism, the deployable antenna being further adapted to extend and unfurl during deployment from the deployment mechanism in the z-direction responsive to extension of the at least one axial support structure, the deployable antenna including one or more flexible membranes coupled to the at least one axial support structure and extending from the z-axis in the deployed state.

An antenna includes a first column of main radiating elements, each main radiating element configured to operate in a first operating frequency band and a first auxiliary radiating element. The first auxiliary radiating element is adjacent a first main radiating element in the first column of main radiating elements, and the first auxiliary radiating element is configured to radiate an electromagnetic wave that is substantially antiphase to an electromagnetic wave radiated by the first main radiating element.

An antenna device is provided. The antenna device includes an antenna body portion configured to transmit and/or receive a radio frequency (RF) signal, and including a dielectric material having a first dielectric constant; a metal layer configured to contact the antenna body portion; a first insulation layer configured to cover at least a part of the metal layer; and an electrical connection structure configured to be electrically connected to the metal layer, wherein the first dielectric constant of the antenna body portion is larger than a dielectric constant of the first insulation layer, and is smaller than a dielectric constant of the metal layer.

An antenna device includes a dielectric resonator antenna configured to transmit and/or receive a first RF signal, a patch antenna pattern configured to transmit and/or receive a second RF signal, and at least partially overlaps the dielectric resonator antenna in a vertical direction, a first feed via configured to feed to the dielectric resonator antenna, and a second feed via configured to feed to the patch antenna pattern, wherein a frequency of the first RF signal is lower than a frequency of the second RF signal.

An antenna device is provided. The antenna device includes a first patch antenna pattern configured to transmit or receive a first radio frequency (RF) signal, and including a concave portion disposed in at least one side of the first patch antenna pattern; a first feed via configured to feed to the first patch antenna pattern; and an additional antenna pattern disposed separate from the first antenna patch, and coupled to the first patch antenna pattern, and disposed in a position corresponding to the concave portion.

An antenna system includes a first antenna and a second antenna. The first antenna can include a first horizontal portion and be used to access a first wireless signal. The first wireless signal can be wirelessly transmitted and/or received over air through the first horizontal portion and a first reference layer. The second antenna can include a second horizontal portion and be used to access a second wireless signal. The second wireless signal can be wirelessly transmitted and/or received over the air through the second horizontal portion and a second reference layer different from the first reference layer. The first wireless signal can be in a first frequency band, the second wireless signal can be in a second frequency band, and frequencies in the second frequency band can be higher than frequencies in the first frequency band.

A broad band directional antenna 10 comprises a patch antenna 12 comprising a conductive and non-circular patch 14 and having a main axis 16 extending perpendicularly to the patch. The antenna further comprises at least one active radiator 18.1, 18.2 which is axially spaced from the patch 14 in a first direction A. A metamaterial ground plane assembly 20 is located between the patch antenna 12 and the at least one active radiator 18.1, 8.2. The patch antenna 12 comprises a conductive ground plane 22 which is axially spaced from the patch 14 in a second and opposite direction B.

A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F.sub.21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.