A quasi-optical beam former includes a set of beam ports, a set of network ports, a quasi-optical device and at least one parallel-plate waveguide extending between the beam ports and the network ports, the beam ports and/or the network ports being superposed in at least two stages, each of the at least two stages being separated by a conductive plane common to two adjacent stages, the quasi-optical beam former comprising a resistive film placed in the continuity of the conductive plane.

A high-frequency reflector antenna (1) is provided that includes at least one main reflector (2), at least one sub-reflector (3) and at least one horn (4). The stationary elements (5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8) for influencing the direction-dependent reception characteristic are present in the beam path between the main reflector (2) and the horn (4). The stationary elements (5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8) may protrude into the free aperture area (6) of the horn (4). The stationary elements (5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8) are switchable dipole elements (5.1.1, 5.2.1, 5.3.1, 5.4.1, 5.5.1, 5.6.1, 5.7.1, 5.8.1) that are arranged with their dipole axis (15) in a manner to influence the reception characteristics of elliptically to circularly or linearly polarised high-frequency radiation.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may select, for communicating a signal, one or more active elements of a set of antenna elements based at least in part on positions of the one or more active elements of the set of antenna elements relative to a set of steering lenses of the wireless communication device; and communicate the signal based at least in part on emitting or receiving the signal using the one or more active elements, wherein the set of steering lenses of the wireless communication device steer the signal to or from the one or more active elements. Numerous other aspects are provided.

An antenna module and communication device containing the antenna module are disclosed. The antenna module is disposed in a metal cavity. The antenna module includes a switched beam mm-wave antenna array having radiating elements separated by less than a wavelength of the radiating elements. The array is fed by a single transceiver chain. The array is disposed at the focal length of a low-profile mm-wave lens configured to steer the beam. A sub-10 GHz antenna is disposed closer to the opening of the cavity than the lens. The lens is a Fresnel Zone Plate lens having a focal length of less than about the wavelength of the beam, or a Saucer lens having shells of different refractive indexes and having a profile that is more than 6 times smaller than a Luneburg lens with a same focal length.

A system and method for ESA quadrant mechanical reconfiguration functions to shift some of the complexity from algorithmic manipulation of received radar data to mechanical transformation of a simple panel structure to achieve desired performance in a desired ESA boresight. The system receives a rotation trigger based on an external event such as altitude and mission and causes two or more simple ESA panels to rotate from a first azimuthal position to a second common azimuthal position without stopping at an intermediate azimuth. Once positioned, each individual rotational ESA panel is combined to function as a single aggregate ESA enabling desired performance in field of view, resolution, and range along a common boresight.

A system and method for ESA quadrant mechanical reconfiguration functions to shift some of the complexity from algorithmic manipulation of received radar data to mechanical transformation of a simple panel structure to achieve desired performance in a desired ESA boresight. The system receives a rotation trigger based on an external event such as altitude and mission and causes two or more simple ESA panels to rotate from a first azimuthal position to a second common azimuthal position without stopping at an intermediate azimuth. Once positioned, each individual rotational ESA panel is combined to function as a single aggregate ESA enabling desired performance in field of view, resolution, and range along a common boresight.

A phased array antenna system comprising: a first plurality of array elements, each array element in the first plurality comprising a radiating element having a generally isotropic radiating pattern and/or a receiving element having a generally omnidirectional field of view; and a second plurality of array elements, each array element in the second plurality comprising a radiating element having a non-isotropic radiating pattern and/or a receiving element having a non-omnidirectional field of view; wherein: the generally isotropic radiating pattern comprises a field of at least 120° in azimuth and 90° in elevation; the generally omnidirectional field of view comprises a field of at least 120° in azimuth and 90° in elevation; the non-isotropic radiating pattern comprises a field of less than half of the field of the generally isotropic radiating pattern in azimuth and/or elevation; and the non-omnidirectional field of view comprises a field of less than half of the field of the omnidirectional field of view.

A phased array antenna system comprising: a first plurality of array elements, each array element in the first plurality comprising a radiating element having a generally isotropic radiating pattern and/or a receiving element having a generally omnidirectional field of view; and a second plurality of array elements, each array element in the second plurality comprising a radiating element having a non-isotropic radiating pattern and/or a receiving element having a non-omnidirectional field of view; wherein: the generally isotropic radiating pattern comprises a field of at least 120° in azimuth and 90° in elevation; the generally omnidirectional field of view comprises a field of at least 120° in azimuth and 90° in elevation; the non-isotropic radiating pattern comprises a field of less than half of the field of the generally isotropic radiating pattern in azimuth and/or elevation; and the non-omnidirectional field of view comprises a field of less than half of the field of the omnidirectional field of view.

According to an aspect, there is provided an antenna arrangement. Said antenna arrangement comprises two or more feed antennas adapted to transmit and receive radio signals. The two or more feed antennas comprise at least a first feed antenna adapted to operate in a first frequency band and a second feed antenna adapted to operate in a second frequency band, where the first and second frequency bands being discontiguous with each other. Moreover, the antenna arrangement comprises an antenna radome arranged around the two or more feed antennas. Said antenna radome comprises a metallic section implementing an antenna reflector for the two or more feed antennas and a nonmetallic section penetrable by radio waves.

A signal transmission apparatus includes: a shielding cabinet and at least one group of first signal transceiver assemblies, at least one antenna assembly, and a first installation structure that are disposed inside the shielding cabinet, where the first installation structure has a one-to-one correspondence with the at least one group of first signal transceiver assemblies, each antenna assembly includes an antenna probe and a signal cable that are connected to each other, and the antenna probe performs, by using the signal cable, signal transmission with another signal transmission apparatus disposed outside the shielding cabinet; signal transmission is performed between the first signal transceiver assembly and the antenna probe in a wireless manner; and each first installation structure can drive a corresponding group of first signal transceiver assemblies to move.