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A 1 × 2 multiple‐input multiple‐output (MIMO) antenna with super‐ultra wideband (super‐UWB) operation and high isolation is proposed. The antenna element has an eye‐shape radiator fed by a tapered shape feedline on the top side and a defected ground structure etched on the bottom ground plane. A high isolation between two radiators is achieved by introducing a T‐shape and two small arm shape stubs...