Miniaturized frequency selection surface based on double-opening resonance ring
A frequency-selective surface and resonant ring technology, applied in the microwave field, can solve problems such as difficult to balance passband and stopband performance, large unit circuit area, and limit practical application, and achieve good out-of-band suppression effect, low insertion loss, The effect of low processing cost
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[0037] This embodiment proposes a miniaturized frequency selective surface based on double split resonators, and its overall structure diagram and side view are as follows Figure 2-3shown. The overall structure from top to bottom is: opening coupling gap 1, upper metal circuit 2, upper dielectric substrate 3, interlayer metal 4, upper and lower coupling windows 5, lower dielectric substrate 6, and lower metal circuit 7. The overall circuit unit is viewed as a square when viewed from above, with a side length of 2.7 mm. Among them, the upper dielectric substrate 3 and the lower dielectric substrate 6 are both Rogers5880, the relative dielectric constant is 2.2, and the thickness is 0.127mm; the thickness of the upper metal circuit 2 and the lower metal circuit 7 are both 0.017mm, and the thickness of the interlayer metal is 0.034mm . And the upper metal circuit 2 and the lower metal circuit 7 adopt exactly the same circuit structure and the physical size of the split resonan...
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