array_merge accepts an arbitrary number of arrays as argument. Calling this function once with all the arguments is faster than calling the same function inside a loop, each time with one argument.

Abstract: This letter presents efficient near-field beamforming using two-layer planar loop array resonator for magnetic resonance wireless power transfer (MR WPT). This two-layer structure provides ...

Abstract: A double-loop antenna is proposed for mobile satellite communications antennas having linear polarized wave. The antenna consists of two loop antennas concentrically located on a dielectric ...

Later in the DATA step, when you want to process the variables in the array, you can refer to a variable by either its name or its array reference. For example, the names Reference and books{1} are ...