Partially reflecting surfaces (PRS) with positive reflection phase gradients are investigated for the design of wideband, low-profile electromagnetic band gap (EBG) resonator antennas. Thin ...

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Sun safety for the entire family Everybody needs some sun exposure to produce vitamin D (which helps calcium absorption for stronger and healthier bones). But unprotected exposure to the sun's ...

In this paper, a low-profile, broadband reflective metasurface is proposed to generate orbital angular momentum (OAM) beams. The design method of generating is introduced, and the effectiveness of ...