52results about How to "High beam splitting rate" patented technology

The invention discloses a terahertz wave polarizing beam splitter with a dual resonance cavity structure. An upper side and a lower side of a flat polarizer are respectively provided with a fourth porous hollow array and a fifth porous hollow array in transverse direction, a first porous hollow array is longitudinally located at the centre between the fourth porous hollow array and the fifth porous hollow array, a second porous hollow array is transversely arranged at a left side of the centre between the fourth porous hollow array and the fifth porous hollow array, and a third porous hollow array is transversely arranged at a right side of the fifth porous hollow array; an input port is arranged at the left side between the fourth porous hollow array and the second porous hollow array, a first output port is arranged at the left side between the fifth porous hollow array and the second porous hollow array, and a second output port is arranged at the right side between the fourth porous hollow array and the third porous hollow array. The terahertz wave polarizing beam splitter with the dual resonance cavity structure is simple in structure, high in beam splitting efficiency, small in size, low in cost, convenient to make and the like, and meets the requirements of application in the fields of terahertz wave imaging, medical diagnosis, terahertz wave communication and the like.

The invention discloses a slotted branch type terahertz wave polarization beam splitter. The beam splitter comprises a signal input end, a first signal output end, a second signal output end, a substrate, an inverse z-shaped slotted silicon waveguide and a z-shaped branch silicon waveguide, wherein the inverse z-shaped slotted silicon waveguide and the z-shaped branch silicon waveguide, which are not adjacent to each other, are arranged on the substrate; the inverse z-shaped slotted silicon waveguide is formed by connecting a rectangular slotted silicon waveguide, a first straight corner connecting silicon waveguide and a first output silicon waveguide in order; a first rectangular coupling slot is arranged on the rectangular slotted silicon waveguide; the z-shaped branch silicon waveguide is formed by connecting an octangular slotted waveguide, a rectangular waveguide, a second straight corner connecting silicon waveguide and a second output silicon waveguide in order; a second rectangular coupling slot is arranged on the octangular slotted waveguide; and signals are subjected to vertical incidence from the signal input end, pass through the inverse z-shaped slotted silicon waveguide and the z-shaped branch silicon waveguide and are output from the signal output ends. The beam splitter has the advantages of simple structure, high beam splitting rate, small dimension, low cost, convenience in preparation and the like.

The invention discloses a Y-shaped porous hollowed slab terahertz wave polarizing beam splitter. A porous hollowed coupling region consists of a second linear porous hollowed region and a third linear porous hollowed region; the third linear porous hollowed region is connected with a fourth linear porous hollowed region to form a linear porous hollowed region; a first linear porous hollowed region is formed by linearly arranging a plurality of large-hole hollows and a plurality of small-hole hollows at equal intervals; an S-shaped curve porous hollowed region is formed by arranging a plurality of small-hole hollows at equal intervals in S shape; the first linear porous hollowed region, the second linear porous hollowed region and the S-shaped curve porous hollowed region are sequentially connected with one another to form a curve porous hollowed region; and the Y-shaped porous hollowed region comprises a linear porous hollowed region and a curve porous hollowed region. The Y-shaped porous hollowed slab terahertz wave polarizing beam splitter has the advantages of simple structure, high beam splitting rate, small dimension, low cost, convenience in preparation and the like, and can meet the requirements on the application in the fields such as terahertz wave imaging, medical diagnosis, terahertz wave communication, and the like.

The invention relates to a novel forming and winding apparatus of glass fiber. Strand cake of glass fiber plied yarns produced via the novel forming and winding apparatus of glass fiber has the advantages of uniform tension, good strand integrity, low hairiness, high splitting rate and the like; finished rovings that are plied have higher quality level than most of products in the current market.The quality of the strand cake is improved, so that production efficiency and yield of subsequent steps can be increased, and production cost is reduced for enterprises. An auto-loading device and anauto-unloading device help improve labor efficiency and save manpower resources. The novel forming and winding apparatus of glass fiber is provided, which is reasonable in structure and convenient tooperate and helps effectively improve the product quality.

The invention discloses a double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter. The double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter comprises a terahertz wave input end, a first signal output end, a second signal output end, a basal body, a branch-shaped input waveguide, a first straight corner waveguide, a second straight corner waveguide, two cylindrical columns and two square frames, wherein the branch-shaped input waveguide, the first straight corner waveguide, the second straight corner waveguide, the two cylindrical columns and the two square frames are arranged on the basal body; terahertz waves are input from the terahertz wave input end; TE (transverse electric) waves are output from the first signal output end; and TM (transverse magnetic) waves are output from the second signal output end, so that the polarization beam splitting function is achieved. The double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter has the advantages of simple structure, high beam splitting efficiency, small size, low cost, convenience in manufacture, easiness in integration and the like.

The invention discloses a terahertz wave polarization beam splitter with trapezoidal structures loaded on the borders. The terahertz wave polarization beam splitter comprises a signal input terminal, a first signal output terminal, a second signal output terminal, a far infrared quartz glass matrix and a polarization beam splitting piece; the polarization beam splitting piece is arranged on the far infrared quartz glass matrix; the polarization beam splitting piece comprises a left side narrow rectangular polarization silicon waveguide, a right side wide rectangular polarization silicon waveguide, an upper side rectangular polarization silicon waveguide, a lower side rectangular polarization silicon waveguide, a long trapezoidal polarization silicon waveguide and a short trapezoidal polarization silicon waveguide; signals are vertically emitted from the signal input terminal and pass through the polarization beam splitting piece; the first signal output terminal outputs TE waves; and the second signal output terminal outputs TM waves, so that polarization beam splitting performance is obtained. The terahertz wave polarization beam splitter has the advantages of simple structure, high beam splitting rate, small dimension, low cost, convenience in manufacture and the like.

The invention discloses a terahertz wave polarization beam splitter with multiple banded structures. The terahertz wave polarization beam splitter comprises a terahertz wave input end, a first signal output end, a second signal output end, a matrix, an L-shaped waveguide, a first straight waveguide, a second straight waveguide, a third straight waveguide, a fourth straight waveguide, a fifth straight waveguide, a sixth straight waveguide and coating layers; the L-shaped waveguide, the first straight waveguide, the second straight waveguide, the third straight waveguide, the fourth straight waveguide, the fifth straight waveguide and the sixth straight waveguide are arranged on the matrix, the surface of the matrix and surfaces of the waveguides are covered by the coating layers, and the second straight waveguide, the third straight waveguide, the fourth straight waveguide, the fifth straight waveguide and the sixth straight waveguide are equidistantly arranged between the L-shaped waveguide and the first straight waveguide; and terahertz wave signals are inputted from the terahertz wave input end, TE (transverse electric) waves are outputted from the first signal output end, TM (transverse magnetic) waves are outputted from the second signal output end, and accordingly a polarization beam splitting function is realized. The terahertz wave polarization beam splitter has the advantages of simple and compact structure, small size, convenience in manufacture, low loss, high splitting rate, easiness in integration and the like.