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In this work, a stacked ring spiral antenna has been proposed, the metallic ring is stacked behind the spiral antenna with the help of FR-4 substrate (dielectric constant=4.3 and loss tangent 0.025), ...
I don’t need yet another screen in my life. Or at least that’s what I have been telling myself for years. I used to believe ...
Upgraded ALMA images expose hidden rings and spirals around baby stars, indicating planets begin taking shape mere cosmic ...
7d
YouTube on MSNSpiral flowers | Simple Rings | Small Crystal | Spherical bead with holes | How to do | DIY 597The crystal beads are 2mm in diameter *** Don't be discouraged if you don't succeed the first time, with the new template, I ...
A planar metamaterial (MM) mimicking electromagnetically-induced transparency (EIT) effect is demonstrated numerically and experimentally in the microwave region. The structure of MM is a periodicity ...
A broadband linearly polarized single-layer reflectarray antenna constructed with element cells of spiral-dipoles is presented in this communication. The proposed method achieves the phase change ...
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