What is Passive Infrastructure?

Passive infrastructure refers to the physical components of a wireless network that support signal transmission but do not actively process or amplify signals. This includes cell towers, antennas, cables, fiber optic networks, power supplies, and mounting structures. In DAS and cellular networks, passive infrastructure plays a crucial role in delivering connectivity by providing the foundation for active equipment like radios and amplifiers. Sharing passive infrastructure—such as tower leasing or neutral host DAS—helps reduce costs and expand network coverage efficiently.