Abstract: This letter introduces a novel subarray-configuration method of n × m spiral sequential rotation (SSR) to achieve low cross-polarization level (XPL) and low sidelobe level (SLL) over wide ...
There's nothing like growing your own produce; however, if you lack the space for an in-ground garden or raised beds, ...
An international team of researchers says it has spotted the largest rotating structure of dark matter and gas-rich galaxies.
Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected alignments that challenge models of how galaxies gain their spin. An internation ...
Abstract: This work presents a wideband low-sidelobe 2×10 circularly polarized helix antenna array using sequential subarray rotation. To avoid grating lobes in uniformly distributed sequential ...