Abstract: This paper presents a wideband dual-polarized 1-bit reconfigurable reflectarray antenna (RRA) at Ku-band, featuring a novel multi-layer unit cell with two substrates and three metallic ...

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Abstract: To expand the channel capacity of a traditional single-polarization reconfigurable antenna, a design method for a dual-polarization reconfigurable microstrip antenna loaded with a passive ...

The theory behind hydropower is very simple: water obeys gravity and imparts the gained kinetic energy onto a turbine, which subsequently drives a generator.  The devil here is, of course, in all ...

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(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Tiziano Piccardi, Johns Hopkins University (THE CONVERSATION) Reducing the visibility ...