The Q20HE-1090R from Electro-Photonics LLC is a Directional Coupler with Frequency 960 MHz to 1.22 GHz, Coupling 20 dB, Coupling Variation ± 1 dB, Frequency Sensitivity 0.5 dB, Directivity 20 dB. Tags: Surface Mount. More details for Q20HE-1090R can be seen below.