DAS design — antenna placement, splitter trees, cable runs

Antenna Placement Strategy

DAS antenna placement begins with the floor plan and propagation analysis. Antennas are positioned to achieve overlapping coverage zones with target RSRP of negative eighty-five dBm or better at every point on the floor. In open office layouts, ceiling-mounted omnidirectional antennas are spaced fifteen to twenty meters apart in a grid pattern. Corridors use directional antennas aimed down the hallway to extend coverage with fewer units. Conference rooms and enclosed offices may each require a dedicated antenna due to wall attenuation. Elevator lobbies, stairwells, and restrooms are common…