Krytar has developed the model KSL2018 broadband coaxial PIN-Schottky diode limiters for applications from 2 to 18 GHz (other bands are available). The maximum insertion loss is 2.5 dB with typical VSWR of 2.20:1. The limiter, which features an internal DC block, handles 1 CW average power and 100 W peak power. The typical limiting threshold is above +6 dBm. For more information, visit the Krytar website at: http://www.krytar.com