RF power handling of slide screw tuners is limited by two basic phenomena:
- Electric field breakdown (sparking or Corona discharge)
- Thermal (expansion of center conductor and connector limitations)
- Area below the probes
- Center conductors
- The center conductors are protected from thermal expansion and mechanically supported.
- The (coaxial) connectors are modified for using high temperature beads.
- The probes have been redesigned and dielectrically protected