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In ordinary antenna arrays, the spacing between radiators is usually chosen lambda/2. In order to use antenna arrays in small mobile platforms, the overall dimensions and, hence, the radiator separation, must be reduced, which aggravates the problem of mutual coupling between radiators. Results are highly distorted beam patterns and greatly reduced(More)
We propose and evaluate an antenna array consisting of three, quarter-wavelength spaced, monopoles and a passive network. The latter decouples and matches the antenna array to prevent gain reduction. At the same time, it forms orthogonal radiation patterns, which divide the space into three different sections. By using a geometry-based channel model, the(More)
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