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In this paper, a three-dimensional (3D) linear-to-circular polarization converter (LCPC), innovatively tailored by the gravity field through the fluidity of liquid metal mercury (Hg), is designed and studied. The proposed LCPC is composed of a 3D glass cavity filled with Hg, a copper reflector, a trenched dielectric layer, and a copper patch. Due to the specially designed 3D glass cavity, Hg will...
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