Renaissance’s new broadband circulator is ideal for transmitter protection
application. Operating over 962 – 1213 MHz, this device can withstand 2000 W
Peak and 20 W average power levels. It is designed to sustain temperatures
from -55 to +120 C while the loss is maintained below 0.5 dB.

Click here for datasheet:
http://www.rec-usa.com/Data%20Sheets/962-1213mhzcirculator3G2BDL.pdf