Electromagnetic-wave polarized reconfigurable radome
A technology for reconfiguring antennas and electromagnetic waves, applied in the electromagnetic field, can solve the problems of serious electromagnetic coupling interference of antennas, deterioration of system electromagnetic compatibility characteristics, and increase of system cost, etc., and achieve the effects of low loss, simple structure, and fewer radio frequency switching elements
A technology for reconfiguring antennas and electromagnetic waves, applied in the electromagnetic field, can solve the problems of serious electromagnetic coupling interference of antennas, deterioration of system electromagnetic compatibility characteristics, and increase of system cost, etc., and achieve the effects of low loss, simple structure, and fewer radio frequency switching elements
CN108493603APending Publication Date: 2018-09-04NANJING UNIV OF INFORMATION SCI & TECH
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[0024] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0025] Such as figure 1 Shown is a schematic diagram of the electromagnetic wave polarization reconfigurable radome in this embodiment, and 36 square unit structures are arranged to form a 6*6 square array. Each unit structure is formed by sequentially laminating the front metal layer 1 , the first dielectric plate 2 , the middle metal layer 3 , the second dielectric plate 2 and the back metal layer 4 . Figure 2-5 The sequence is the front schematic diagram, rear schematic diagram, middle metal layer schematic diagram and side schematic diagram of the unit structure. Depend on figure 2 It can be seen that 3 radio frequency components are added to the front of the unit structure: 1 inductor and 2 pin switching diodes. The size of the inductor is 200nH, and its function is to filter out AC. Depend on image 3 It can be seen that only on...
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The invention discloses an electromagnetic-wave polarized reconfigurable radome formed by a plurality of unit structures arranged regularly along an orthogonal direction. Each unit structure is formedby successive lamination of a front metal layer, a first dielectric plate, an intermediate metal layer, and a second dielectric plate and a back metal layer; the front metal layer having a square shape is arranged at the front side of the unit structure and an L-shaped slot and a metalized through hole are formed in the front metal layer; a cross metal strip is arranged at one edge of the first dielectric plate; one end point of the front metal layer is connected with the cross metal strip at the edge of the first dielectric plate by a metal strip with a crack; an inductor is arranged in thecrack of the metal strip; the back metal layer is arranged at the back of the unit structure and the back structure of the unit structure and the front structure of the previous unit structure are arranged symmetrically; and the metalized through hole formed in the front metal layer and a metalized through hole formed in the back metal layer are connected by a metal wire. Therefore, transformationamong linear polarization, left-right circular polarization, andlinear polarization is realized conveniently.
Description
technical field [0001] The invention belongs to the field of electromagnetic technology, and in particular relates to an electromagnetic wave polarization reconfigurable radome. Background technique [0002] Electromagnetic wave polarization is an important characteristic of electromagnetic waves, which is described by the oscillation behavior of the electric field vector during electromagnetic wave transmission. When the electromagnetic wave propagates forward along the direction of the wave vector, as time changes, when the trajectory of the end of the electric field vector is a straight line, a circle and an ellipse, the corresponding polarization states are linear polarization and circular polarization respectively. polarization and elliptical polarization. In practical applications, the polarization characteristics of electromagnetic waves are often detected and their polarization states are changed. In the fields of radar target recognition, communication, aerospace,...
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Patent Timeline
04 Sep 2018
Publication
CN108493603A
- IPC
- H01Q1/42
- CPC
- H01Q1/42; H01Q1/421
- Inventors
- ηθΊ«δΊ; η©ε