Design Considerations for Automatic Tracking Antenna Systems

An improved beverage can is provided, and has a top wall, a bottom wall, and a side wall extending between and being integrally connected to the top and bottom walls. The side wall has opposing curved portions and opposing flattened or concaved portions. The flattened or concaved portions are oriented for gripping by person's thumb and fingers. One of the flattened or concaved portions is positioned below an opening in the top wall of the can such that the can is automatically oriented for drinking or pouring when grasped by a person. A circular ridge is provided adjacent the top and bottom walls of the can such that the can is rollable along a surface or track. The flattened or concaved portions also provide an advertising panel for the beverage manufacturer or distributors.