Adaptive High-Level Isolation between Two Closely Placed Copolarized Antennas Using Tunable Screen

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Journal Article
IEEE Antennas and Wireless Propagation Letters, 2017, 16 pp. 1016 - 1019
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© 2002-2011 IEEE. A novel design of high-level isolation screen composed of continuously tunable resonator columns is presented. The designed structure with the dimension of 200 $\times$ 125 mm$^2$ is fabricated and experimentally tested in an anechoic chamber for decoupling two closely placed copolarized monopoles. With the help of a self-contained optimization algorithm, the decoupling system achieves a high isolation of 110 dB. Experimental results also exhibit a strong robustness of the design in environmental adaptivity.
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