A single RFID interrogator can control more than one reader antenna, so you could have a single reader control four antennas focused on four separate areas. However, I’m not entirely sure what you mean by cube. How far apart are these cubes? If they are far away from one another, the antennas will lose power over the coax cable. What’s more, if the cubes are not enclosed or are very large, it might be difficult to ensure that any given tag within a cube is interrogated.
—Mark Roberti, Editor, RFID Journal
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