Fractional frequency reuse
fixed frequency soft switch
high frequency soft magnetic materials
high-frequency soft switch
high-frequency soft-switch
sliding-frequency soft-start
variable frequency soft start system
high frequency soft magnetic properties
discrete frequency soft-starting
Fractional Frequency Offset
fractional frequency precession
FRACTIONAL FREQUENCY TRANSMISSION
Fractional Frequency Transmission System
fractional-frequency harmonics
integer fractional frequency offset