3results about How to "Implement beam scanning" patented technology

The application discloses a planar vortex orbit angular momentum antenna based on artificial surface plasmons. The application comprises a resonant antenna and a feeding system; the resonant antenna comprises an artificial surface plasmon metal ring and a first dielectric plate; the feeding system comprises a second dielectric plate, an air dielectric layer, a metal ground, a third dielectric plate and a feeding network; two microstrip stubs are arranged on the third dielectric plate, and a small metal disc is arranged at the end of each microstrip stub; the microstrip stubs are connected with the feeding network through metal vias; the surface impedance of the slotted unit of each artificial surface plasmon unit in the artificial surface plasmon metal ring is the same or different. The application can emit a vortex wave beam carrying a precisely defined orbit angular momentum on a plane, and through synthesizing multiple wave beams at a fixed frequency, the multiple wave beams can be superimposed to form a new wave beam, so that the shape of the wave beam can be controlled. The wave beam scanning can be realized by adjusting the surface impedance distribution of each wave beam.

The application relates to the technical field of antennas, in particular to an ultra-wideband reconfigurable one-bit trans-reflection array unit and an antenna. The ultra-wideband reconfigurable one-bit trans-reflection array unit comprises a first dielectric layer, a second dielectric layer and a third dielectric layer arranged in a stacking structure in sequence. A first metal polarization grid is arranged on the top of the first dielectric layer. A second metal polarization grid and a feeding structure are arranged on the bottom of the third dielectric layer. A reconfigurable metal resonator is arranged on the top of the second dielectric layer. The reconfigurable metal resonator is connected with a bias line of the feeding structure through a metal column passing through a metalized through hole. A plurality of switching elements are arranged on the reconfigurable metal resonator. The above scheme integrates the transmission and reflection functions on a single trans-reflection array unit, realizes beam scanning in the whole space range, breaks through the limitation that a traditional space-fed array antenna can only work in a half-space scene, and is favorable for improving the application range of the antenna.

This invention belongs to the field of antenna engineering technology, specifically providing a 1-bit encoded wide-bandwidth angle-scanning reflective array antenna to achieve high-speed, low-cost beam scanning with wide-bandwidth angle-scanning characteristics. This invention employs a wide-bandwidth horn feed and dipole antenna elements. The element structure uses a phase delay line with short-circuited terminations to control the phase, which not only provides wide-bandwidth characteristics but also minimizes inter-element coupling and mutual influence, suppressing resonance. Furthermore, the DC control structure is simple, significantly reducing the number of electronic control components and lowering the complexity of the electronic control method. In summary, this invention utilizes a stripline transmission line to achieve wide-bandwidth, low-loss linear phase shift and employs 1-bit encoding for high-speed, low-cost array phase electrical modulation to achieve wide-bandwidth angle-scanning, offering advantages such as simple structure and convenient electronic control.