High frequency-change-over switch e.g. frequency switch, has PIN-diode directly switching high frequency-signals to output, and inductors of low-pass filter operate only as throttle separating low-frequency input from high-frequency inputs

摘要

The switch has a low-pass filter (TP), by which high frequency-signal with frequencies up to predetermined cut-off frequency are selectively switched to an output (A) or high-frequency branches, by which high frequency-signals of frequencies above the cut-off frequency are switched to the output. A switchable PIN-diode (30) directly switches the high frequency-signals to the output. Inductors (10, 11) of the low-pass filter operate only as a throttle that separates a low-frequency input (E1) from high-frequency inputs in a switching condition.