The HLM-40PSM from Marki Microwave is a GaAs Schottky Diode Signal Limiter that operates from DC to 40 GHz. It has an insertion loss of less than 1.75 dB and a flat leakage from 11 to 19 dBm. This limiter can handle a peak input power of 9.5 W and an average input power of 2.5 W. It is ideal for protecting sensitive components and for applications requiring high linearity. The limiter is available in a PSM QFN package that measures 4 x 4 mm.
