Three-dimensional metamaterial decoupling structure used for microstrip array antenna
A technology of microstrip array and metamaterials, which is applied in the direction of antenna grounding switch structure connection, antenna coupling, radiation element structure, etc., can solve the problem of isolation reduction, achieve improved isolation, reduce side lobe level, and balance feed The effect of electricity
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[0017] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0018] Such as figure 1 with figure 2 As shown, the present invention includes a common ground plate 101 printed on the lower surface of a dielectric substrate, rectangular radiation patches 201 and 202 printed on the upper surface of the dielectric substrate, two coaxial feed ports 301 and 302, and a metamaterial structure unit attached to the top Sheet 401, the bottom patches 402 and 403 of the metamaterial structure unit, connect the two short-circuit probes 501 and 502 on the top and bottom of the metamaterial structure unit.
[0019] The dielectric substrate 601 is an FR4 dielectric with a dielectric constant of 4.4. In order to reduce design costs, the length and width of the dielectric substrate 601 are designed according to the miniaturization design and radiation pattern requirements of the antenna array, that is, the dielectric substrate adop...
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