Embodiments of a multiple-input-multiple output antenna for use with wireless communication systems are disclosed. In various embodiments, the antenna comprises a first element a first radiation element operable to resonate at a first frequency and a second radiation element operable to resonate at a second frequency, wherein said second frequency is not an integer multiple of said first frequency. In various embodiments, the first and second antenna radiation elements are each proximate to a ground plane and the respective resonance frequencies of said first radiation element and said second radiation element is achieved by controlling the electrical coupling between said first radiation element, said second radiation element and said ground plane. In some embodiments, the resonance frequencies of said first and second radiation elements is controlled independently.
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