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Two-element ultra-wideband (UWB) multiple input and multiple output (MIMO) antennas are presented to obtain high isolation. The designed UWB-MIMO antennas are composed of two identical orthogonal antenna elements, and a defected ground structure with I-shaped slot and a pair of L-shaped stub are employed to get better isolation. Bandwidth of the proposed antennas range from 3.28 GHz-12 GHz. Also,...
Millimeter wave (mmWave) communication is favored for its abundant bandwidth. However, the sampling rate scales up with the large bandwidth, thus making it difficult to implement high-resolution analog-to-digital converters (ADCs). In addition, a large-scale array is employed to overcome the high path loss of the mmWave channels. Due to the large number of antennas and the directional feature of the...
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