A cavity splitter is a high-performance RF power divider that uses resonant cavity structures to split an input signal into multiple outputs with minimal loss and excellent isolation. Unlike microstrip or Wilkinson splitters, cavity splitters are built with precision-machined metal enclosures that form internal resonant chambers, allowing them to operate efficiently over wide frequency ranges—typically from 698 MHz to 2700 MHz or even broader. These splitters are prized for their low insertion loss (often around 0.2–0.5 dB), high port-to-port isolation (15–20 dB or more), and excellent VSWR (≤ 1.2:1), making them ideal for demanding RF environments. They’re commonly used in Distributed Antenna Systems (DAS), telecom infrastructure, military communications, and signal monitoring setups, where signal integrity and power balance are critical. Cavity splitters are typically housed in rugged, shielded enclosures with N-type or DIN connectors, and they can handle high power levels—often up to 300 watts—making them suitable for both indoor and outdoor deployments.