In many multiple-input multiple-output (MIMO) communication applications, two-dimensional (2D) rectangular arrays are used and the angular field of interest is different in the azimuth and elevation ...

In this article, we examine in detail students' structuring and enumeration of 2-dimensional (2D) rectangular arrays of squares. Our research indicates that many students do not "see" the ...

It is an essential mental process underlying students' quantitative dealings with spatial situations. In this article, we examine in detail students' structuring and enumeration of 2-dimensional (2D) ...

This paper presents a differential and constant-beamwidth (CB) beamforming approach, which is based on Kronecker-product (KP) beamforming with uniform rectangular arrays (URAs). We decompose a global ...