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Electromagnetic Band-Gap (EBG) Structures are periodic structures with an obvious frequency band gap, which can suppress the propagation of surface-wave; these structures can help to reduce the mutual coupling of antenna array. As a result, they can be used to optimize the performance of antenna array. At the same time, the Defected Ground Structure (DGS), which is developed on the basis of the EBG...
Adaptive beamforming is a key technology of smart antenna; the core is to obtain the optimum weights of the antenna array by some adaptive beamforming algorithms, and finally adjust the main lobe to focus on the arriving direction of the desired signal, as well as suppress the interfering signal. By these ways, the antenna can receive the interesting signal efficiently. In practical application, the...
MIMO (multiple-input-multiple-output) is a technique in which the signal is transmitted through the actual channels. In order to further understand MIMO communication, this paper has conducted MIMO channel decomposition in theory. First, we introduce the actual MIMO channel model and detection model. Then, we decompose the actual MIMO channel into virtual parallel multiple single-input-single-output...
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