In millimeter-wave (mmW) sparse multiple-input–multiple-output (MIMO) array imaging, excessive element spacing produces grating lobes, resulting in ghost artifacts, especially in low-bandwidth ...

This communication presents a method for suppressing grating lobes that occur in sparse antenna arrays. The method is based on parasitic antenna elements that are terminated to reactive loads. The ...

13.09.2018: Review article - The literature suggests associations between diabetes, head injury and autoimmune disease, and frontotemporal dementia, but the current evidence base is too narrow to be ...