to each other. Note that for propagating or radiating fields, the fields are orthogonal and are in-phase. The boundary of this region is typically given as d < 0.62 D3 1, where New Radio Access RF and Transceiver Design Considerations 667 D is the maximum linear dimension of an antenna element/array, 1 denotes the wave- length, and d is the distance from the antenna(s). Radiating near-field (Fresnel) region: The radiating near-field or Fresnel region is the region between the near- and far-fields. In this region, the reactive fields are not domi- nant, and the radiating fields begin to emerge. However, unlike the far-field region, the shape of the radiation pattern may vary noticeably with distance. This region is often identified by 0.62(/D3/X<d<2D2/A. Note that depending on the values of d and the wavelength, this field may or may not exist. Far-field (Fraunhofer) region: The far-field is a region relatively far from the antenna element/array, where the shape of radiation pattern does not vary with distance, although the fields are attenuated proportional to d-1, the power density degrades by d-2. This region is dominated by radiated fields, with the E- and H-fields in a plane orthogonal to each other and to the direction of propagation which is the main charac- teristic of plane waves. If the maximum linear dimension of an antenna is D, the follow- ing three conditions must all be satisfied SO that a point can be in the far-field region: d > 2D2/1, d D and d 1. The first two inequalities ensure that the power radiated in a given direction from distinct parts of the antenna is approximately parallel. This helps ensure that the fields in the far-field region can be characterized as plane waves. Near a radiating antenna, there are reactive fields that typically have the E-fields and H-fields diminish with distance as d-2 or d-3. The third inequality ensures that these near-fields are disappeared, and we are left with the radiating fields, which diminish with distance as d-1. The NR base stations can be categorize