The R3G9NAR from Renaissance Electronics Corporation is a Drop-in circulator that operates from 9 to 10 GHz. It is designed for radar applications and covers the X-band frequency range. It has a low insertion loss 0.5 dB and an isolation of over 20 dB. The circulator can handle up to 5 watt of power and has a VSWR of 1.20:1. It is available in a compact 0.5” x 0.5”x 0.18” package.