The RFWI430A from RF-Lambda is a waveguide isolator that operates from 1.7 to 2.6 GHz. It can handle up to 800 Watts of average power and has an isolation of over 20 dB, Insertion loss of less than 0.3 dB and VSWR of 1.2:1. It has a waveguide size of WR-430.
