This array antenna is an array antenna to be used for beam forming and includes: a plurality of antenna elements; a ground; a dielectric provided between the plurality of antenna elements and the ground, the dielectric having an electrical length, from the plurality of antenna elements to the ground, of not less than 0.03; and a shield structure provided at least between the plurality of antenna elements and configured to shield a radio wave radiated from each antenna element.

This array antenna is an array antenna to be used for beam forming and includes: a plurality of antenna elements; a ground; a dielectric provided between the plurality of antenna elements and the ground, the dielectric having an electrical length, from the plurality of antenna elements to the ground, of not less than 0.03; and a shield structure provided at least between the plurality of antenna elements and configured to shield a radio wave radiated from each antenna element.

A device for orienting a load about a main axis X and a secondary axis Y is disclosed having a first shaft, called transmission shaft, intended to support the load and configured to be rotated about the main axis and the secondary axis, a second shaft configured to be rotated about the main axis X, a third shaft configured to be rotated about a third axis of rotation, in the same direction as the main axis, a first connection component between the transmission shaft and the second shaft, configured to prevent relative movements between the transmission shaft and the second shaft in, on the one hand, a degree of rotational freedom about the main axis X and, on the other hand, three degrees of translational freedom.

In one embodiment of the present disclosure, an antenna apparatus includes a housing assembly including a radome portion and a lower enclosure portion, wherein the radome portion and lower enclosure portion are couplable to form an inner compartment for housing antenna components of the antenna assembly, an antenna stack assembly disposed within the inner compartment, wherein the antenna stack assembly generates heat when in operation, and a heat transfer system within the inner compartment configured to facilitate the flow of heat toward the radome portion.

A base station antenna includes a radome and an antenna assembly that is mounted within the radome. The antenna assembly includes a backplane that includes a first reflector, a first array that includes a plurality of first radiating elements mounted to extend forwardly from the first reflector, a second reflector mounted to extend forwardly from the first reflector and a second array that includes a plurality of second radiating elements mounted to extend forwardly from the second reflector. The first radiating elements extend a first distance forwardly from the first reflector and the second radiating elements extend a second distance forwardly from the second reflector, where the first distance exceeds the second distance.

A wireless transmission system includes a base station that transmits and receives a radio wave in a frequency band selected from a range of 1 GHz to 170 GHz, and an electromagnetic wave reflector having a reflective surface that reflects the radio wave and provided along at least a part of a production line in which manufacturing equipment that transmits and receives the radio wave is used.

A wireless transmission system includes a base station that transmits and receives a radio wave in a frequency band selected from a range of 1 GHz to 170 GHz, and an electromagnetic wave reflector having a reflective surface that reflects the radio wave and provided along at least a part of a production line in which manufacturing equipment that transmits and receives the radio wave is used.

An onboard antenna module includes: a plate-shaped member that is fixed to a body of a vehicle and at least a portion of which is plate-shaped; and a plurality of antennas that are provided on the plate-shaped member, wherein a plurality of antennas included in the plurality of antennas provided on the plate-shaped member constitute a first diversity antenna configured to receive RF (Radio Frequency) signals in a first frequency band, and at least two antennas included in the plurality of antennas that constitute the first diversity antenna are respectively provided in two regions that are not adjacent to each other when a flat surface of the plate-shaped member is divided into quadrants around a center point of the flat surface.

A terahertz device includes an antenna base including reflective films, wherein: the reflective films are curved to be recessed; the reflective film and the reflective film are arranged to be adjacent to each other in a y direction; and when viewed from a z direction, the sizes of the reflective film and the reflective film along an x direction are smaller than the sizes of the reflective film and the reflective film along the y direction.

A reflector for an antenna includes a first shaped region, wherein a curvature of the first shaped region is defined by a corresponding scan angle, and a second shaped region, wherein a curvature of the second shaped region is based on a corresponding scan angle. The curvature of the first shaped region is different than the curvature of the second shaped region.