Abstract: This communication presents a method for large-spacing arrays with grating-lobe-free scanning capabilities. This method achieves grating lobe (GL) suppression by transforming the ...
Abstract: In this paper, the placement of active reflecting elements on an intelligent reflecting surface (IRS) is studied. With a hybrid IRS, the placement problem of finite active elements is vital ...
Rare-earth elements are a set of metallic elements in the periodic table. Chemists usually refer to a group of 17 elements when they use this label: the 15 lanthanides from lanthanum to lutetium, and ...
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