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Different radiation patterns of a phased array of half-wavelength dipole antennas, when the array elements are excited to obtain the main beam directed in a given direction. (a) and (b) External elements without the cloaking devices (uncoated case): (a) radiation pattern of the array when transmitting HP signals; (b) embedded central element pattern when receiving LP signals. (c) and (d) External elements with the cloaking devices (coated case): (c) radiation pattern of the array when transmitting HP signals; (d) embedded central element pattern when receiving LP signals (adapted from ).
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