Electronic control scanning antenna based on meta-material
A technology for scanning antennas and heterogeneous media, applied to the structural form of antennas, electrical components, and radiation elements, etc., can solve problems such as complex structures, and achieve the effect of simple operation and low cost
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specific Embodiment approach 1
[0020] Specific implementation mode one. The following combination Figure 1 to Figure 3 This embodiment will be described. An electronically controlled scanning antenna based on an anisotropic medium described in this embodiment includes an omnidirectional antenna 1, a plurality of 3-D frequency selection structural units 2 and a plurality of varactor diodes 3;
[0021] The 3-D frequency selective structural unit 2 is composed of a sheet-shaped annular substrate 4 and a plurality of copper sheets 7;
[0022] A plurality of copper thin sheets 7 are evenly divided into two groups, wherein a plurality of copper thin sheets 7 in one group are evenly distributed on the upper surface of the sheet-shaped annular substrate 4 with the center of circle as the center, and a plurality of copper thin sheets 7 in the other group are divided into pieces The center of the ring-shaped substrate 4 is evenly distributed on its lower surface, and the copper flakes 7 on the upper surface corresp...
specific Embodiment approach 2
[0024] Specific implementation mode two. The following combination Figure 1 to Figure 3 Describe this embodiment. This embodiment is a further description of the 3-D frequency selection structure unit 2 in Embodiment 1. The inner diameter of the sheet-shaped annular substrate 4 of the 3-D frequency selection structure unit 2 in this embodiment is long It is 33.2 mm, and the outer diameter is 41.8 mm.
specific Embodiment approach 3
[0025] Specific implementation mode three. The following combination Figure 1 to Figure 3 Describe this embodiment. This embodiment is a further description of the sheet-shaped annular substrate 4 described in Embodiment 1. The relative dielectric constant of the sheet-shaped annular substrate 4 in this embodiment is 3.5, and the plate thickness is 1.274 mm. The distance between the center positions of the plates is 2.5 mm.
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