The R100-1 from Microwave Engineering Corporation is a Waveguide Tee with Frequency 8.5 to 18.5 GHz, Isolation 12 to 30 dB, Isolation(Co-linear arms) 30 dB (Isolation, E – H Ports), Isolation(E & H arms) 12 to 17 dB (Isolation, Colinear Ports). Tags: Magic Tee. More details for R100-1 can be seen below.