Examples disclosed herein relate to a radiating structure. The radiating structure has a transmission array structure having a plurality of transmission paths with each transmission path having a plurality of slots and a pair of adjacent transmission paths forming a superelement. Each superelement has a phase control module to control a phase of a transmission signal. The radiating structure also includes a radiating array structure having a plurality of radiating elements configured in a lattice, with each radiating element corresponding to at least one slot from the plurality of slots and the radiating array structure positioned proximate the transmission array structure. A feed coupling structure is coupled to the transmission array structure and adapted for propagation of a transmission signal to the transmission array structure. The transmission signal is radiated through at least one superelement and at least one of the plurality of radiating elements and has a phase controlled by the phase control module in the at least one superelement.

An antenna system including a first antenna, a second antenna and a third antenna. The antenna system includes a feed for feeding a first common signal to radiator elements of one of the second antenna or third, with a first phase difference between the radiator elements configured for a first polarization and the radiator elements being configured for a second polarization, to create a virtual polarization, wherein the virtual polarization is aligned with one of the first polarization or the second polarization in a first frequency band.

An antenna and radiation unit thereof, and balun structure of radiation unit are disclosed. The radiation unit has two dipoles belonging to a same polarization and two feeding components respectively feeding the two dipoles. One end of each of the two feeding components is electrically connected to its corresponding dipole, and the other end of each of the two feeding components is combined through a same physical combining port inherent in the radiation unit. By arranging a combining port inherent to the radiation unit and connecting it to a respective end of two feeding components connected to two dipoles of the same polarization, the signals of the two dipoles are divided/combined through the combining port.

An antenna and radiation unit thereof, and balun structure of radiation unit are disclosed. The radiation unit has two dipoles belonging to a same polarization and two feeding components respectively feeding the two dipoles. One end of each of the two feeding components is electrically connected to its corresponding dipole, and the other end of each of the two feeding components is combined through a same physical combining port inherent in the radiation unit. By arranging a combining port inherent to the radiation unit and connecting it to a respective end of two feeding components connected to two dipoles of the same polarization, the signals of the two dipoles are divided/combined through the combining port.

A multiband antenna is connected to a host conductor when used. The multiband antenna extends long in a first direction. The multiband antenna has a conductor main portion and a ground terminal. The conductor main portion extends in a horizontal plane which is defined by the first direction and a second direction perpendicular to the first direction. The conductor main portion is formed with an opening and a slot. The slot extends long in the first direction. The conductor main portion has a first short edge, a second short edge, a first long edge and a second long edge. The ground terminal is connected to the host conductor when the multiband antenna is used. The ground terminal extends from the second long edge. The ground terminal is positioned closer to the first short edge than to the second short edge in the first direction.

A multiband antenna has a conductor main portion, a first ground terminal and a second ground terminal. The conductor main portion is long in a first direction and extends in a horizontal plane defined by the first direction and a second direction. The conductor main portion has a first long edge and a second long edge at both ends thereof in the second direction, respectively. The conductor main portion is formed with a slot and an opening portion. The slot is long in the first direction. The opening portion is provided in the first long edge and connects the slot with an outside of the conductor main portion. The first ground terminal and the second ground terminal extend from the second long edge. The first ground terminal and the second ground terminal are connected to a host conductor when the multiband antenna is used.

An antenna includes a piezoelectric disc. The antenna further includes a first electrode disposed on a first surface of the piezoelectric disc and a second electrode disposed on a second surface of the piezoelectric disc that is opposite to the first surface. The first electrode and the second electrode are to receive a time-varying voltage to excite a mechanical vibration in the piezoelectric disc, and the piezoelectric disc is to radiate electromagnetic energy at a particular frequency responsive to the mechanical vibration.

An aspect of the present disclosure is directed to and provides radar-reflecting systems and apparatus that employ metasurfaces to produce enhanced radar cross sections that are greater than those produced by the geometry of the surfaces alone. Another aspect of the present disclosure is directed to and provides heat-ducting systems and apparatus that include metasurfaces. A further aspect of the present disclosure is directed to and provides cards with metasurfaces. Exemplary embodiments utilize fractal plasmonic surfaces for a metasurface.

An aspect of the present disclosure is directed to and provides radar-reflecting systems and apparatus that employ metasurfaces to produce enhanced radar cross sections that are greater than those produced by the geometry of the surfaces alone. Another aspect of the present disclosure is directed to and provides heat-ducting systems and apparatus that include metasurfaces. A further aspect of the present disclosure is directed to and provides cards with metasurfaces. Exemplary embodiments utilize fractal plasmonic surfaces for a metasurface.

The invention relates to a device including a set of superconducting conductors, of junctions and of control elements, each conductor comprising a first portion extending according to a first direction and a set of second portions, the first portions being offset relative to each other according to a second direction, at least three junctions being interposed according to the second direction between each pair of successive first portions, each junction being connected to the first portion of each of the conductors between which the junction is interposed by a second portion of said conductor, each control element being configured to switch the associated junction between a configuration in which the junction forms a Josephson junction and a configuration in which the junction blocks the Cooper pairs.