46results about How to "Realize 2D scanning" patented technology

The invention discloses an integrated two-dimensional beam steering device based on a lens. The device comprises a substrate, an input waveguide, a connecting waveguide, a 1xN optical switch, a switching electrical interface, N switching output waveguides, N transmitting units, a lens, and a controller. The integrated two-dimensional beam steering device based on the lens can realize two-dimensional beam steering, and has the characteristics of large power capacity, low control complexity, and low electric power consumption.

The invention discloses a phased array arrangement optimization method based on irregular sub-arrays, and proposes a mixed integer linear programming model, while considering the gain and sidelobe level during array scanning, and solving it by a commercial solver to realize The high gain and low sidelobe characteristics of irregular array scanning, after optimizing the array arrangement, use the convex optimization algorithm to synthesize the required pattern based on the principle of maximum gain.

The invention relates to a single-optical fiber scanning micro device as well as a production method and a control method thereof. The single-optical fiber scanning micro device is formed by wrapping an optical fiber with four pieces of piezoelectric ceramics, wherein a coating at the tail end of the optical fiber is removed, both ends of the four piezoelectric ceramics blocks are bonded around the optical fiber, a section of naked optical fiber is reserved, the four pieces of piezoelectric ceramics form a square cavity, the outer walls of the four pieces of piezoelectric ceramics are respectively provided with leads by tin soldering, the inner walls of the four pieces of piezoelectric ceramics on the cavity are conducted by conductive adhesives and are provided with one lead, the conducing wires of the two opposite pieces of ceramics in the horizontal direction are connected, and the leads of the two opposite pieces of ceramics in the vertical direction are connected. The single-optical fiber scanning micro device produced by the method has the advantages of short length, small size, good scanning repeatability, easy obtainment of raw materials, easy processing and low manufacturing cost, thereby having favorable application prospects on optical precise instruments as well as illumination devices, signal collection device and other devices in the field of clinical endoscopic operations.

The invention discloses a two-dimensional scanning varactor active super-surface electromagnetic lens antenna, which comprises a focusing lens, a two-dimensional scanning array, gaskets, a support column, a horn antenna and a base. The focusing lens is a super-surface electromagnetic lens. The two-dimensional scanning array, the focusing lens and the support column are connected by the gaskets inturn. The two-dimensional scanning array is formed by superimposing two one-dimensional scanning arrays: an x-direction scanning array and a y-direction scanning array, wherein the y direction is usedas the polarization direction, the z direction is used as the axis-of-symmetry direction of the lens, and the bias lines of the varistors in the two one-dimensional scanning arrays are in the x direction. The antenna realizes two-dimensional scanning by changing the bias voltages of the varactors. The scanning array realizes two-dimensional scanning through the one-dimensional scanning arrays realized by two groups of varactor active super-surfaces, the scanning directions of the two arrays are orthogonal, and the two arrays are longitudinally superimposed. By using the method, the complexityand cost of super-surfaces in a large-scale two-dimensional scanning array can be reduced. Meanwhile, the focusing lens is realized by a super-surface, and the longitudinal size is reduced.

The invention relates to the technical field of automation identification, and provides an antenna system applied to three-dimensional scanning of a radar. The antenna system comprises antenna units, control switches, feed ports and a switch control system. The antenna units form an m*n antenna array. The control switches are arranged between the antenna units and used for being connected with the antenna units to form the m*n antenna array. The feed ports are connected with the antenna units at the tail ends of m rows and the tail ends of n lines. The switch control system controls the control switches to achieve two-dimensional scanning in the row direction and the line direction of an antenna beam. According to the antenna system, as the radio frequency switches are arranged between the antenna units, the switch control system controls the states of the radio frequency switches to achieve two-dimensional scanning in the row direction and the line direction of the antenna beam, and the three-dimensional scanning requirement of the radar is met.