Yeah, but you can't hide the thermal image that easy. Not to mention the tracks left behind or the thunderous cloud of dust it creates as it moves.

Might as well try to hide a Navy destroyer. Oh, wait that's what the Philadelphia experiment was all about.

may work but will the next tank run in to it off side may be need radar

Theoretically the same technology could be used to emulate the infrared background as well. If you can manipulate the visual part of the electromagnetic spectrum this way, it stands to reason you could so the same for the IR (near or far). As for the tracks and dust plumes, well the preferred mode for a tank to engage another tank is in defile, that is behind the reverse slope of a hill or behind some kind of of cover. This tech could make the first shot a certainty.