LSA [limited space-charge accumulation] diode

A transferred-electron diode similar to the Gunn diode except that it is intended to operate at frequencies that are determined by the microwave cavity in which the diode is mounted and that are several times higher than the transit-time frequency so that the formation of charge packets (or domains) is limited.

NOTE Compared to the Gunn diode, higher output power at higher frequency is achievable.

References